| 1 | From b0b68cd5b5da72950863af882c368f28f65690e8 Mon Sep 17 00:00:00 2001 |
| 2 | From: John Crispin <blogic@openwrt.org> |
| 3 | Date: Thu, 6 Dec 2012 11:43:53 +0100 |
| 4 | Subject: [PATCH 122/123] MIPS: lantiq: adds pcie driver |
| 5 | |
| 6 | --- |
| 7 | arch/mips/lantiq/Kconfig | 10 + |
| 8 | arch/mips/lantiq/xway/sysctrl.c | 2 + |
| 9 | arch/mips/pci/Makefile | 2 + |
| 10 | arch/mips/pci/fixup-lantiq-pcie.c | 82 ++ |
| 11 | arch/mips/pci/fixup-lantiq.c | 3 + |
| 12 | arch/mips/pci/ifxmips_pci_common.h | 57 ++ |
| 13 | arch/mips/pci/ifxmips_pcie.c | 1607 ++++++++++++++++++++++++++++++++++++ |
| 14 | arch/mips/pci/ifxmips_pcie.h | 135 +++ |
| 15 | arch/mips/pci/ifxmips_pcie_ar10.h | 290 +++++++ |
| 16 | arch/mips/pci/ifxmips_pcie_msi.c | 392 +++++++++ |
| 17 | arch/mips/pci/ifxmips_pcie_phy.c | 478 +++++++++++ |
| 18 | arch/mips/pci/ifxmips_pcie_pm.c | 176 ++++ |
| 19 | arch/mips/pci/ifxmips_pcie_pm.h | 36 + |
| 20 | arch/mips/pci/ifxmips_pcie_reg.h | 1001 ++++++++++++++++++++++ |
| 21 | arch/mips/pci/ifxmips_pcie_vr9.h | 271 ++++++ |
| 22 | arch/mips/pci/pci.c | 25 + |
| 23 | drivers/pci/pcie/aer/Kconfig | 2 +- |
| 24 | include/linux/pci.h | 2 + |
| 25 | include/linux/pci_ids.h | 6 + |
| 26 | 19 files changed, 4576 insertions(+), 1 deletion(-) |
| 27 | create mode 100644 arch/mips/pci/fixup-lantiq-pcie.c |
| 28 | create mode 100755 arch/mips/pci/ifxmips_pci_common.h |
| 29 | create mode 100644 arch/mips/pci/ifxmips_pcie.c |
| 30 | create mode 100644 arch/mips/pci/ifxmips_pcie.h |
| 31 | create mode 100644 arch/mips/pci/ifxmips_pcie_ar10.h |
| 32 | create mode 100644 arch/mips/pci/ifxmips_pcie_msi.c |
| 33 | create mode 100644 arch/mips/pci/ifxmips_pcie_phy.c |
| 34 | create mode 100644 arch/mips/pci/ifxmips_pcie_pm.c |
| 35 | create mode 100644 arch/mips/pci/ifxmips_pcie_pm.h |
| 36 | create mode 100644 arch/mips/pci/ifxmips_pcie_reg.h |
| 37 | create mode 100644 arch/mips/pci/ifxmips_pcie_vr9.h |
| 38 | |
| 39 | diff --git a/arch/mips/lantiq/Kconfig b/arch/mips/lantiq/Kconfig |
| 40 | index edeb58c..116765a 100644 |
| 41 | --- a/arch/mips/lantiq/Kconfig |
| 42 | +++ b/arch/mips/lantiq/Kconfig |
| 43 | @@ -17,6 +17,7 @@ config SOC_XWAY |
| 44 | bool "XWAY" |
| 45 | select SOC_TYPE_XWAY |
| 46 | select HW_HAS_PCI |
| 47 | + select ARCH_SUPPORTS_MSI |
| 48 | |
| 49 | config SOC_FALCON |
| 50 | bool "FALCON" |
| 51 | @@ -40,6 +41,15 @@ config PCI_LANTIQ |
| 52 | bool "PCI Support" |
| 53 | depends on SOC_XWAY && PCI |
| 54 | |
| 55 | +config PCIE_LANTIQ |
| 56 | + bool "PCIE Support" |
| 57 | + depends on SOC_XWAY && PCI |
| 58 | + |
| 59 | +config PCIE_LANTIQ_MSI |
| 60 | + bool |
| 61 | + depends on PCIE_LANTIQ && PCI_MSI |
| 62 | + default y |
| 63 | + |
| 64 | config XRX200_PHY_FW |
| 65 | bool "XRX200 PHY firmware loader" |
| 66 | depends on SOC_XWAY |
| 67 | diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c |
| 68 | index 75e1b7d..b077d49 100644 |
| 69 | --- a/arch/mips/lantiq/xway/sysctrl.c |
| 70 | +++ b/arch/mips/lantiq/xway/sysctrl.c |
| 71 | @@ -377,6 +377,8 @@ void __init ltq_soc_init(void) |
| 72 | PMU_PPE_EMA | PMU_PPE_TC | PMU_PPE_SLL01 | |
| 73 | PMU_PPE_QSB | PMU_PPE_TOP); |
| 74 | clkdev_add_pmu("1f203000.rcu", "gphy", 0, PMU_GPHY); |
| 75 | + pmu_w32(~0, PMU_PWDSR1); |
| 76 | + pmu_w32(pmu_r32(PMU_PWDSR) & ~PMU_PCIE_CLK, PMU_PWDSR); |
| 77 | } else if (of_machine_is_compatible("lantiq,ar9")) { |
| 78 | clkdev_add_static(ltq_ar9_cpu_hz(), ltq_ar9_fpi_hz(), |
| 79 | ltq_ar9_fpi_hz(), CLOCK_250M); |
| 80 | diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile |
| 81 | index e13a71c..46d7096 100644 |
| 82 | --- a/arch/mips/pci/Makefile |
| 83 | +++ b/arch/mips/pci/Makefile |
| 84 | @@ -44,6 +44,8 @@ obj-$(CONFIG_SIBYTE_BCM1x80) += pci-bcm1480.o pci-bcm1480ht.o |
| 85 | obj-$(CONFIG_SNI_RM) += fixup-sni.o ops-sni.o |
| 86 | obj-$(CONFIG_LANTIQ) += fixup-lantiq.o |
| 87 | obj-$(CONFIG_PCI_LANTIQ) += pci-lantiq.o ops-lantiq.o |
| 88 | +obj-$(CONFIG_PCIE_LANTIQ) += ifxmips_pcie_phy.o ifxmips_pcie.o fixup-lantiq-pcie.o |
| 89 | +obj-$(CONFIG_PCIE_LANTIQ_MSI) += pcie-lantiq-msi.o |
| 90 | obj-$(CONFIG_TANBAC_TB0219) += fixup-tb0219.o |
| 91 | obj-$(CONFIG_TANBAC_TB0226) += fixup-tb0226.o |
| 92 | obj-$(CONFIG_TANBAC_TB0287) += fixup-tb0287.o |
| 93 | diff --git a/arch/mips/pci/fixup-lantiq-pcie.c b/arch/mips/pci/fixup-lantiq-pcie.c |
| 94 | new file mode 100644 |
| 95 | index 0000000..50a1c3b |
| 96 | --- /dev/null |
| 97 | +++ b/arch/mips/pci/fixup-lantiq-pcie.c |
| 98 | @@ -0,0 +1,82 @@ |
| 99 | +/****************************************************************************** |
| 100 | +** |
| 101 | +** FILE NAME : ifxmips_fixup_pcie.c |
| 102 | +** PROJECT : IFX UEIP for VRX200 |
| 103 | +** MODULES : PCIe |
| 104 | +** |
| 105 | +** DATE : 02 Mar 2009 |
| 106 | +** AUTHOR : Lei Chuanhua |
| 107 | +** DESCRIPTION : PCIe Root Complex Driver |
| 108 | +** COPYRIGHT : Copyright (c) 2009 |
| 109 | +** Infineon Technologies AG |
| 110 | +** Am Campeon 1-12, 85579 Neubiberg, Germany |
| 111 | +** |
| 112 | +** This program is free software; you can redistribute it and/or modify |
| 113 | +** it under the terms of the GNU General Public License as published by |
| 114 | +** the Free Software Foundation; either version 2 of the License, or |
| 115 | +** (at your option) any later version. |
| 116 | +** HISTORY |
| 117 | +** $Version $Date $Author $Comment |
| 118 | +** 0.0.1 17 Mar,2009 Lei Chuanhua Initial version |
| 119 | +*******************************************************************************/ |
| 120 | +/*! |
| 121 | + \file ifxmips_fixup_pcie.c |
| 122 | + \ingroup IFX_PCIE |
| 123 | + \brief PCIe Fixup functions source file |
| 124 | +*/ |
| 125 | +#include <linux/pci.h> |
| 126 | +#include <linux/pci_regs.h> |
| 127 | +#include <linux/pci_ids.h> |
| 128 | + |
| 129 | +#include <lantiq_soc.h> |
| 130 | + |
| 131 | +#include "pcie-lantiq.h" |
| 132 | + |
| 133 | +#define PCI_VENDOR_ID_INFINEON 0x15D1 |
| 134 | +#define PCI_DEVICE_ID_INFINEON_DANUBE 0x000F |
| 135 | +#define PCI_DEVICE_ID_INFINEON_PCIE 0x0011 |
| 136 | +#define PCI_VENDOR_ID_LANTIQ 0x1BEF |
| 137 | +#define PCI_DEVICE_ID_LANTIQ_PCIE 0x0011 |
| 138 | + |
| 139 | + |
| 140 | + |
| 141 | +static void __devinit |
| 142 | +ifx_pcie_fixup_resource(struct pci_dev *dev) |
| 143 | +{ |
| 144 | + u32 reg; |
| 145 | + |
| 146 | + IFX_PCIE_PRINT(PCIE_MSG_FIXUP, "%s dev %s: enter\n", __func__, pci_name(dev)); |
| 147 | + |
| 148 | + printk("%s: fixup host controller %s (%04x:%04x)\n", |
| 149 | + __func__, pci_name(dev), dev->vendor, dev->device); |
| 150 | + |
| 151 | + /* Setup COMMAND register */ |
| 152 | + reg = PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER /* | |
| 153 | + PCI_COMMAND_INTX_DISABLE */| PCI_COMMAND_SERR; |
| 154 | + pci_write_config_word(dev, PCI_COMMAND, reg); |
| 155 | + IFX_PCIE_PRINT(PCIE_MSG_FIXUP, "%s dev %s: exit\n", __func__, pci_name(dev)); |
| 156 | +} |
| 157 | +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INFINEON, PCI_DEVICE_ID_INFINEON_PCIE, ifx_pcie_fixup_resource); |
| 158 | +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LANTIQ, PCI_VENDOR_ID_LANTIQ, ifx_pcie_fixup_resource); |
| 159 | + |
| 160 | +static void __devinit |
| 161 | +ifx_pcie_rc_class_early_fixup(struct pci_dev *dev) |
| 162 | +{ |
| 163 | + IFX_PCIE_PRINT(PCIE_MSG_FIXUP, "%s dev %s: enter\n", __func__, pci_name(dev)); |
| 164 | + |
| 165 | + if (dev->devfn == PCI_DEVFN(0, 0) && |
| 166 | + (dev->class >> 8) == PCI_CLASS_BRIDGE_HOST) { |
| 167 | + |
| 168 | + dev->class = (PCI_CLASS_BRIDGE_PCI << 8) | (dev->class & 0xff); |
| 169 | + |
| 170 | + printk(KERN_INFO "%s: fixed pcie host bridge to pci-pci bridge\n", __func__); |
| 171 | + } |
| 172 | + IFX_PCIE_PRINT(PCIE_MSG_FIXUP, "%s dev %s: exit\n", __func__, pci_name(dev)); |
| 173 | + mdelay(10); |
| 174 | +} |
| 175 | + |
| 176 | +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INFINEON, PCI_DEVICE_ID_INFINEON_PCIE, |
| 177 | + ifx_pcie_rc_class_early_fixup); |
| 178 | + |
| 179 | +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LANTIQ, PCI_DEVICE_ID_LANTIQ_PCIE, |
| 180 | + ifx_pcie_rc_class_early_fixup); |
| 181 | diff --git a/arch/mips/pci/fixup-lantiq.c b/arch/mips/pci/fixup-lantiq.c |
| 182 | index 6c829df..cf5c4e0 100644 |
| 183 | --- a/arch/mips/pci/fixup-lantiq.c |
| 184 | +++ b/arch/mips/pci/fixup-lantiq.c |
| 185 | @@ -11,6 +11,7 @@ |
| 186 | |
| 187 | int (*ltq_pci_plat_arch_init)(struct pci_dev *dev) = NULL; |
| 188 | int (*ltq_pci_plat_dev_init)(struct pci_dev *dev) = NULL; |
| 189 | +int (*ltq_pci_map_irq)(const struct pci_dev *dev, u8 slot, u8 pin); |
| 190 | |
| 191 | int pcibios_plat_dev_init(struct pci_dev *dev) |
| 192 | { |
| 193 | @@ -28,6 +29,8 @@ int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) |
| 194 | struct of_irq dev_irq; |
| 195 | int irq; |
| 196 | |
| 197 | + if (ltq_pci_map_irq) |
| 198 | + return ltq_pci_map_irq(dev, slot, pin); |
| 199 | if (of_irq_map_pci(dev, &dev_irq)) { |
| 200 | dev_err(&dev->dev, "trying to map irq for unknown slot:%d pin:%d\n", |
| 201 | slot, pin); |
| 202 | diff --git a/arch/mips/pci/ifxmips_pci_common.h b/arch/mips/pci/ifxmips_pci_common.h |
| 203 | new file mode 100755 |
| 204 | index 0000000..5f6ab83 |
| 205 | --- /dev/null |
| 206 | +++ b/arch/mips/pci/ifxmips_pci_common.h |
| 207 | @@ -0,0 +1,57 @@ |
| 208 | +/****************************************************************************** |
| 209 | +** |
| 210 | +** FILE NAME : ifxmips_pci_common.h |
| 211 | +** PROJECT : IFX UEIP |
| 212 | +** MODULES : PCI subsystem |
| 213 | +** |
| 214 | +** DATE : 30 June 2009 |
| 215 | +** AUTHOR : Lei Chuanhua |
| 216 | +** DESCRIPTION : PCIe Root Complex Driver |
| 217 | +** COPYRIGHT : Copyright (c) 2009 |
| 218 | +** Infineon Technologies AG |
| 219 | +** Am Campeon 1-12, 85579 Neubiberg, Germany |
| 220 | +** |
| 221 | +** This program is free software; you can redistribute it and/or modify |
| 222 | +** it under the terms of the GNU General Public License as published by |
| 223 | +** the Free Software Foundation; either version 2 of the License, or |
| 224 | +** (at your option) any later version. |
| 225 | +** HISTORY |
| 226 | +** $Version $Date $Author $Comment |
| 227 | +** 0.0.1 30 June,2009 Lei Chuanhua Initial version |
| 228 | +*******************************************************************************/ |
| 229 | + |
| 230 | +#ifndef IFXMIPS_PCI_COMMON_H |
| 231 | +#define IFXMIPS_PCI_COMMON_H |
| 232 | +#include <linux/version.h> |
| 233 | +/*! |
| 234 | + \defgroup IFX_PCI_COM IFX PCI/PCIe common parts for OS integration |
| 235 | + \brief PCI/PCIe common parts |
| 236 | +*/ |
| 237 | + |
| 238 | +/*! |
| 239 | + \defgroup IFX_PCI_COM_OS OS APIs |
| 240 | + \ingroup IFX_PCI_COM |
| 241 | + \brief PCI/PCIe bus driver OS interface functions |
| 242 | +*/ |
| 243 | +/*! |
| 244 | + \file ifxmips_pci_common.h |
| 245 | + \ingroup IFX_PCI_COM |
| 246 | + \brief PCI/PCIe bus driver common OS header file |
| 247 | +*/ |
| 248 | +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24) |
| 249 | +#define IFX_PCI_CONST |
| 250 | +#else |
| 251 | +#define IFX_PCI_CONST const |
| 252 | +#endif |
| 253 | +#ifdef CONFIG_IFX_PCI |
| 254 | +extern int ifx_pci_bios_map_irq(IFX_PCI_CONST struct pci_dev *dev, u8 slot, u8 pin); |
| 255 | +extern int ifx_pci_bios_plat_dev_init(struct pci_dev *dev); |
| 256 | +#endif /* COFNIG_IFX_PCI */ |
| 257 | + |
| 258 | +#ifdef CONFIG_IFX_PCIE |
| 259 | +extern int ifx_pcie_bios_map_irq(IFX_PCI_CONST struct pci_dev *dev, u8 slot, u8 pin); |
| 260 | +extern int ifx_pcie_bios_plat_dev_init(struct pci_dev *dev); |
| 261 | +#endif |
| 262 | + |
| 263 | +#endif /* IFXMIPS_PCI_COMMON_H */ |
| 264 | + |
| 265 | diff --git a/arch/mips/pci/ifxmips_pcie.c b/arch/mips/pci/ifxmips_pcie.c |
| 266 | new file mode 100644 |
| 267 | index 0000000..de6e2fa |
| 268 | --- /dev/null |
| 269 | +++ b/arch/mips/pci/ifxmips_pcie.c |
| 270 | @@ -0,0 +1,1607 @@ |
| 271 | +/****************************************************************************** |
| 272 | +** |
| 273 | +** FILE NAME : ifxmips_pcie.c |
| 274 | +** PROJECT : IFX UEIP for VRX200 |
| 275 | +** MODULES : PCI MSI sub module |
| 276 | +** |
| 277 | +** DATE : 02 Mar 2009 |
| 278 | +** AUTHOR : Lei Chuanhua |
| 279 | +** DESCRIPTION : PCIe Root Complex Driver |
| 280 | +** COPYRIGHT : Copyright (c) 2009 |
| 281 | +** Infineon Technologies AG |
| 282 | +** Am Campeon 1-12, 85579 Neubiberg, Germany |
| 283 | +** |
| 284 | +** This program is free software; you can redistribute it and/or modify |
| 285 | +** it under the terms of the GNU General Public License as published by |
| 286 | +** the Free Software Foundation; either version 2 of the License, or |
| 287 | +** (at your option) any later version. |
| 288 | +** HISTORY |
| 289 | +** $Version $Date $Author $Comment |
| 290 | +** 0.0.1 02 Mar,2009 Lei Chuanhua Initial version |
| 291 | +*******************************************************************************/ |
| 292 | + /*! |
| 293 | + \file ifxmips_pcie.c |
| 294 | + \ingroup IFX_PCIE |
| 295 | + \brief PCI express bus driver source file |
| 296 | +*/ |
| 297 | +#include <linux/types.h> |
| 298 | +#include <linux/pci.h> |
| 299 | +#include <linux/kernel.h> |
| 300 | +#include <linux/init.h> |
| 301 | +#include <linux/delay.h> |
| 302 | +#include <linux/mm.h> |
| 303 | +#include <asm/paccess.h> |
| 304 | +#include <linux/pci.h> |
| 305 | +#include <linux/pci_regs.h> |
| 306 | +#include <linux/module.h> |
| 307 | + |
| 308 | +#include "ifxmips_pcie.h" |
| 309 | +#include "ifxmips_pcie_reg.h" |
| 310 | + |
| 311 | +#define IFX_PCIE_VER_MAJOR 1 |
| 312 | +#define IFX_PCIE_VER_MID 5 |
| 313 | +#define IFX_PCIE_VER_MINOR 3 |
| 314 | + |
| 315 | +/* Enable 32bit io due to its mem mapped io nature */ |
| 316 | +#define IFX_PCIE_ERROR_INT |
| 317 | +#define CONFIG_IFX_PCIE_1ST_CORE |
| 318 | +#define IFX_PCIE_IO_32BIT |
| 319 | + |
| 320 | +#define IFX_PCIE_IR (INT_NUM_IM4_IRL0 + 25) |
| 321 | +#define IFX_PCIE_INTA (INT_NUM_IM4_IRL0 + 8) |
| 322 | +#define IFX_PCIE_INTB (INT_NUM_IM4_IRL0 + 9) |
| 323 | +#define IFX_PCIE_INTC (INT_NUM_IM4_IRL0 + 10) |
| 324 | +#define IFX_PCIE_INTD (INT_NUM_IM4_IRL0 + 11) |
| 325 | +#define MS(_v, _f) (((_v) & (_f)) >> _f##_S) |
| 326 | +#define SM(_v, _f) (((_v) << _f##_S) & (_f)) |
| 327 | +#define IFX_REG_SET_BIT(_f, _r) \ |
| 328 | + IFX_REG_W32((IFX_REG_R32((_r)) &~ (_f)) | (_f), (_r)) |
| 329 | + |
| 330 | +static DEFINE_SPINLOCK(ifx_pcie_lock); |
| 331 | + |
| 332 | +u32 g_pcie_debug_flag = PCIE_MSG_ANY & (~PCIE_MSG_CFG); |
| 333 | + |
| 334 | +static ifx_pcie_irq_t pcie_irqs[IFX_PCIE_CORE_NR] = { |
| 335 | + { |
| 336 | + .ir_irq = { |
| 337 | + .irq = IFX_PCIE_IR, |
| 338 | + .name = "ifx_pcie_rc0", |
| 339 | + }, |
| 340 | + |
| 341 | + .legacy_irq = { |
| 342 | + { |
| 343 | + .irq_bit = PCIE_IRN_INTA, |
| 344 | + .irq = IFX_PCIE_INTA, |
| 345 | + }, |
| 346 | + { |
| 347 | + .irq_bit = PCIE_IRN_INTB, |
| 348 | + .irq = IFX_PCIE_INTB, |
| 349 | + }, |
| 350 | + { |
| 351 | + .irq_bit = PCIE_IRN_INTC, |
| 352 | + .irq = IFX_PCIE_INTC, |
| 353 | + }, |
| 354 | + { |
| 355 | + .irq_bit = PCIE_IRN_INTD, |
| 356 | + .irq = IFX_PCIE_INTD, |
| 357 | + }, |
| 358 | + }, |
| 359 | + }, |
| 360 | + |
| 361 | +#ifdef CONFIG_IFX_PCIE_2ND_CORE |
| 362 | + { |
| 363 | + .ir_irq = { |
| 364 | + .irq = IFX_PCIE1_IR, |
| 365 | + .name = "ifx_pcie_rc1", |
| 366 | + }, |
| 367 | + |
| 368 | + .legacy_irq = { |
| 369 | + { |
| 370 | + .irq_bit = PCIE_IRN_INTA, |
| 371 | + .irq = IFX_PCIE1_INTA, |
| 372 | + }, |
| 373 | + { |
| 374 | + .irq_bit = PCIE_IRN_INTB, |
| 375 | + .irq = IFX_PCIE1_INTB, |
| 376 | + }, |
| 377 | + { |
| 378 | + .irq_bit = PCIE_IRN_INTC, |
| 379 | + .irq = IFX_PCIE1_INTC, |
| 380 | + }, |
| 381 | + { |
| 382 | + .irq_bit = PCIE_IRN_INTD, |
| 383 | + .irq = IFX_PCIE1_INTD, |
| 384 | + }, |
| 385 | + }, |
| 386 | + |
| 387 | + }, |
| 388 | +#endif /* CONFIG_IFX_PCIE_2ND_CORE */ |
| 389 | +}; |
| 390 | + |
| 391 | +void |
| 392 | +ifx_pcie_debug(const char *fmt, ...) |
| 393 | +{ |
| 394 | + static char buf[256] = {0}; /* XXX */ |
| 395 | + va_list ap; |
| 396 | + |
| 397 | + va_start(ap, fmt); |
| 398 | + vsnprintf(buf, sizeof(buf), fmt, ap); |
| 399 | + va_end(ap); |
| 400 | + |
| 401 | + printk("%s", buf); |
| 402 | +} |
| 403 | + |
| 404 | +#ifdef IFX_PCI_PHY_DBG |
| 405 | +/* Generate hot reset, XXX must catpure to verify */ |
| 406 | +static INLINE void |
| 407 | +pcie_secondary_bus_reset(int pcie_port) |
| 408 | +{ |
| 409 | + int i; |
| 410 | + u32 reg; |
| 411 | +#define IFX_PCIE_RESET_TIME 20 |
| 412 | + |
| 413 | + /* Assert Secondary Bus Reset */ |
| 414 | + reg = IFX_REG_R32(PCIE_INTRBCTRL(pcie_port)); |
| 415 | + reg |= PCIE_INTRBCTRL_RST_SECONDARY_BUS; |
| 416 | + IFX_REG_W32(reg, PCIE_INTRBCTRL(pcie_port)); |
| 417 | + |
| 418 | + /* De-assert Secondary Bus Reset */ |
| 419 | + reg &= ~PCIE_INTRBCTRL_RST_SECONDARY_BUS; |
| 420 | + IFX_REG_W32(reg, PCIE_INTRBCTRL(pcie_port)); |
| 421 | + |
| 422 | + /* XXX, wait at least 100 ms, then restore again */ |
| 423 | + for (i = 0; i < IFX_PCIE_RESET_TIME; i++) { |
| 424 | + mdelay(10); |
| 425 | + } |
| 426 | +#undef IFX_PCIE_RESET_TIME |
| 427 | +} |
| 428 | + |
| 429 | +/* Error or L0s to L0 */ |
| 430 | +static INLINE int |
| 431 | +pcie_retrain_link(int pcie_port) |
| 432 | +{ |
| 433 | + int i; |
| 434 | + u32 reg; |
| 435 | +#define IFX_PCIE_RETRAIN_TIME 1000 |
| 436 | + |
| 437 | + reg = IFX_REG_R32(PCIE_LCTLSTS(pcie_port)); |
| 438 | + reg |= PCIE_LCTLSTS_RETRIAN_LINK; |
| 439 | + IFX_REG_W32(reg, PCIE_LCTLSTS(pcie_port)); |
| 440 | + |
| 441 | + /* Wait for the link to come up */ |
| 442 | + for (i = 0; i < IFX_PCIE_RETRAIN_TIME; i++) { |
| 443 | + if (!(IFX_REG_R32(PCIE_LCTLSTS(pcie_port)) & PCIE_LCTLSTS_RETRAIN_PENDING)) { |
| 444 | + break; |
| 445 | + } |
| 446 | + udelay(100); |
| 447 | + } |
| 448 | + if (i >= IFX_PCIE_RETRAIN_TIME) { |
| 449 | + IFX_PCIE_PRINT(PCIE_MSG_INIT, "%s retrain timeout\n", __func__); |
| 450 | + return -1; |
| 451 | + } |
| 452 | + return 0; |
| 453 | +#undef IFX_PCIE_RETRAIN_TIME |
| 454 | +} |
| 455 | + |
| 456 | +static INLINE void |
| 457 | +pcie_disable_scrambling(int pcie_port) |
| 458 | +{ |
| 459 | + u32 reg; |
| 460 | + |
| 461 | + reg = IFX_REG_R32(PCIE_PLCR(pcie_port)); |
| 462 | + reg |= PCIE_PLCR_SCRAMBLE_DISABLE; |
| 463 | + IFX_REG_W32(reg, PCIE_PLCR(pcie_port)); |
| 464 | +} |
| 465 | +#endif /* IFX_PCI_PHY_DBG */ |
| 466 | + |
| 467 | +static INLINE int |
| 468 | +pcie_ltssm_enable(int pcie_port) |
| 469 | +{ |
| 470 | + int i; |
| 471 | +#define IFX_PCIE_LTSSM_ENABLE_TIMEOUT 10 |
| 472 | + |
| 473 | + IFX_REG_W32(PCIE_RC_CCR_LTSSM_ENABLE, PCIE_RC_CCR(pcie_port)); /* Enable LTSSM */ |
| 474 | + |
| 475 | + /* Wait for the link to come up */ |
| 476 | + for (i = 0; i < IFX_PCIE_LTSSM_ENABLE_TIMEOUT; i++) { |
| 477 | + if (!(IFX_REG_R32(PCIE_LCTLSTS(pcie_port)) & PCIE_LCTLSTS_RETRAIN_PENDING)) { |
| 478 | + break; |
| 479 | + } |
| 480 | + udelay(10); |
| 481 | + } |
| 482 | + if (i >= IFX_PCIE_LTSSM_ENABLE_TIMEOUT) { |
| 483 | + IFX_PCIE_PRINT(PCIE_MSG_INIT, "%s link timeout!!!!!\n", __func__); |
| 484 | + return -1; |
| 485 | + } |
| 486 | + return 0; |
| 487 | +#undef IFX_PCIE_LTSSM_ENABLE_TIMEOUT |
| 488 | +} |
| 489 | + |
| 490 | +static INLINE void |
| 491 | +pcie_ltssm_disable(int pcie_port) |
| 492 | +{ |
| 493 | + IFX_REG_W32(0, PCIE_RC_CCR(pcie_port)); /* Disable LTSSM */ |
| 494 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_RC_CCR 0x%08x\n", |
| 495 | + __func__, IFX_REG_R32(PCIE_RC_CCR(pcie_port))); |
| 496 | +} |
| 497 | + |
| 498 | +static INLINE void |
| 499 | +pcie_ahb_bus_error_suppress(int pcie_port) |
| 500 | +{ |
| 501 | + IFX_REG_W32(PCIE_AHB_CTRL_BUS_ERROR_SUPPRESS, PCIE_AHB_CTRL(pcie_port)); |
| 502 | +} |
| 503 | + |
| 504 | +static INLINE void |
| 505 | +pcie_status_register_clear(int pcie_port) |
| 506 | +{ |
| 507 | + /* Clear the status register, XXX, seperate function */ |
| 508 | + IFX_REG_W32(0, PCIE_RC_DR(pcie_port)); |
| 509 | + IFX_REG_W32(0, PCIE_PCICMDSTS(pcie_port)); |
| 510 | + IFX_REG_W32(0, PCIE_DCTLSTS(pcie_port)); |
| 511 | + IFX_REG_W32(0, PCIE_LCTLSTS(pcie_port)); |
| 512 | + IFX_REG_W32(0, PCIE_SLCTLSTS(pcie_port)); |
| 513 | + IFX_REG_W32(0, PCIE_RSTS(pcie_port)); |
| 514 | + IFX_REG_W32(0, PCIE_UES_R(pcie_port)); |
| 515 | + IFX_REG_W32(0, PCIE_UEMR(pcie_port)); |
| 516 | + IFX_REG_W32(0, PCIE_UESR(pcie_port)); |
| 517 | + IFX_REG_W32(0, PCIE_CESR(pcie_port)); |
| 518 | + IFX_REG_W32(0, PCIE_CEMR(pcie_port)); |
| 519 | + IFX_REG_W32(0, PCIE_RESR(pcie_port)); |
| 520 | + IFX_REG_W32(0, PCIE_PVCCRSR(pcie_port)); |
| 521 | + IFX_REG_W32(0, PCIE_VC0_RSR0(pcie_port)); |
| 522 | + IFX_REG_W32(0, PCIE_TPFCS(pcie_port)); |
| 523 | + IFX_REG_W32(0, PCIE_TNPFCS(pcie_port)); |
| 524 | + IFX_REG_W32(0, PCIE_TCFCS(pcie_port)); |
| 525 | + IFX_REG_W32(0, PCIE_QSR(pcie_port)); |
| 526 | + IFX_REG_W32(0, PCIE_IOBLSECS(pcie_port)); |
| 527 | +} |
| 528 | + |
| 529 | +static inline int |
| 530 | +ifx_pcie_link_up(int pcie_port) |
| 531 | +{ |
| 532 | + return (IFX_REG_R32(PCIE_PHY_SR(pcie_port)) & PCIE_PHY_SR_PHY_LINK_UP) ? 1 : 0; |
| 533 | +} |
| 534 | + |
| 535 | +#ifdef IFX_PCIE_DBG |
| 536 | +static void |
| 537 | +pcie_status_registers_dump(int pcie_port) |
| 538 | +{ |
| 539 | + printk(KERN_INFO "PCIe_PCICMDSTS: 0x%08x\n", IFX_REG_R32(PCIE_PCICMDSTS(pcie_port))); |
| 540 | + printk(KERN_INFO "PCIe_RC_DR: 0x%08x\n", IFX_REG_R32(PCIE_RC_DR(pcie_port))); |
| 541 | + printk(KERN_INFO "PCIe_DCTLSTS: 0x%08x\n", IFX_REG_R32(PCIE_DCTLSTS(pcie_port))); |
| 542 | + printk(KERN_INFO "PCIe_LCTLSTS: 0x%08x\n", IFX_REG_R32(PCIE_LCTLSTS(pcie_port))); |
| 543 | + printk(KERN_INFO "PCIe_SLCTLSTS: 0x%08x\n", IFX_REG_R32(PCIE_SLCTLSTS(pcie_port))); |
| 544 | + printk(KERN_INFO "PCIe_RSTS: 0x%08x\n", IFX_REG_R32(PCIE_RSTS(pcie_port))); |
| 545 | + printk(KERN_INFO "PCIe_UES_R: 0x%08x\n", IFX_REG_R32(PCIE_UES_R(pcie_port))); |
| 546 | + printk(KERN_INFO "PCIe_UEMR: 0x%08x\n", IFX_REG_R32(PCIE_UEMR(pcie_port))); |
| 547 | + printk(KERN_INFO "PCIe_UESR: 0x%08x\n", IFX_REG_R32(PCIE_UESR(pcie_port))); |
| 548 | + printk(KERN_INFO "PCIe_CESR: 0x%08x\n", IFX_REG_R32(PCIE_CESR(pcie_port))); |
| 549 | + printk(KERN_INFO "PCIe_CEMR: 0x%08x\n", IFX_REG_R32(PCIE_CEMR(pcie_port))); |
| 550 | + printk(KERN_INFO "PCIe_RESR: 0x%08x\n", IFX_REG_R32(PCIE_RESR(pcie_port))); |
| 551 | + printk(KERN_INFO "PCIe_ESIR: 0x%08x\n", IFX_REG_R32(PCIE_ESIR(pcie_port))); |
| 552 | + printk(KERN_INFO "PCIe_PVCCRSR: 0x%08x\n", IFX_REG_R32(PCIE_PVCCRSR(pcie_port))); |
| 553 | + printk(KERN_INFO "PCIe_VC0_RSR0: 0x%08x\n", IFX_REG_R32(PCIE_VC0_RSR0(pcie_port))); |
| 554 | + printk(KERN_INFO "PCIe_TPFCS: 0x%08x\n", IFX_REG_R32(PCIE_TPFCS(pcie_port))); |
| 555 | + printk(KERN_INFO "PCIe_TNPFCS: 0x%08x\n", IFX_REG_R32(PCIE_TNPFCS(pcie_port))); |
| 556 | + printk(KERN_INFO "PCIe_TCFCS: 0x%08x\n", IFX_REG_R32(PCIE_TCFCS(pcie_port))); |
| 557 | + printk(KERN_INFO "PCIe_QSR: 0x%08x\n", IFX_REG_R32(PCIE_QSR(pcie_port))); |
| 558 | + printk(KERN_INFO "PCIe_VCTAR1: 0x%08x\n", IFX_REG_R32(PCIE_VCTAR1(pcie_port))); |
| 559 | + printk(KERN_INFO "PCIe_VCTAR2: 0x%08x\n", IFX_REG_R32(PCIE_VCTAR2(pcie_port))); |
| 560 | + printk(KERN_INFO "PCIe_IOBLSECS: 0x%08x\n", IFX_REG_R32(PCIE_IOBLSECS(pcie_port))); |
| 561 | + printk(KERN_INFO "PCIe_ALTRT: 0x%08x\n", IFX_REG_R32(PCIE_ALTRT(pcie_port))); |
| 562 | + printk(KERN_INFO "PCIe_SNR: 0x%08x\n", IFX_REG_R32(PCIE_SNR(pcie_port))); |
| 563 | + printk(KERN_INFO "PCIe_DBR0: 0x%08x\n", IFX_REG_R32(PCIE_DBR0(pcie_port))); |
| 564 | + printk(KERN_INFO "PCIe_DBR1: 0x%08x\n", IFX_REG_R32(PCIE_DBR1(pcie_port))); |
| 565 | +} |
| 566 | + |
| 567 | +static void |
| 568 | +pcie_post_dump(int pcie_port) |
| 569 | +{ |
| 570 | + printk(KERN_INFO "PCIe_PCICMDSTS: 0x%08x\n", IFX_REG_R32(PCIE_PCICMDSTS(pcie_port))); |
| 571 | + printk(KERN_INFO "PCIe_MBML: 0x%08x\n", IFX_REG_R32(PCIE_MBML(pcie_port))); |
| 572 | + printk(KERN_INFO "PCIe_PBML: 0x%08x\n", IFX_REG_R32(PCIE_PMBL(pcie_port))); |
| 573 | + printk(KERN_INFO "PCIe_IOBLSECS: 0x%08x\n", IFX_REG_R32(PCIE_IOBLSECS(pcie_port))); |
| 574 | + printk(KERN_INFO "PCIe_IO_BANDL: 0x%08x\n", IFX_REG_R32(PCIE_IO_BANDL(pcie_port))); |
| 575 | + printk(KERN_INFO "PCIe_INTRBCTRL: 0x%08x\n", IFX_REG_R32(PCIE_INTRBCTRL(pcie_port))); |
| 576 | + printk(KERN_INFO "Power State: D%1d\n", IFX_REG_R32(PCIE_PM_CSR(pcie_port)) & PCIE_PM_CSR_POWER_STATE); |
| 577 | + printk(KERN_INFO "Negotiated Link Width: %d\n", MS(IFX_REG_R32(PCIE_LCTLSTS(pcie_port)), PCIE_LCTLSTS_NEGOTIATED_LINK_WIDTH)); |
| 578 | + printk(KERN_INFO "Number of VCs: %d\n", IFX_REG_R32(PCIE_PVC1(pcie_port)) & PCIE_PVC1_EXT_VC_CNT); |
| 579 | + printk(KERN_INFO "Low-priority VCs: %d\n", MS(IFX_REG_R32(PCIE_PVC1(pcie_port)), PCIE_PVC1_LOW_PRI_EXT_VC_CNT)); |
| 580 | + printk(KERN_INFO "VC Arbitration: 0x%08x\n", IFX_REG_R32(PCIE_PVC2(pcie_port)) & PCIE_PVC2_VC_ARB_WRR); |
| 581 | + printk(KERN_INFO "Port Arbitration: 0x%08x\n", IFX_REG_R32(PCIE_VC0_RC(pcie_port)) & PCIE_VC0_RC_PORT_ARB); |
| 582 | + |
| 583 | + if (ifx_pcie_link_up(pcie_port)) { |
| 584 | + printk(KERN_INFO "PCIe PHY Link is UP\n"); |
| 585 | + } |
| 586 | + else { |
| 587 | + printk(KERN_INFO "PCIe PHY Link is DOWN!\n"); |
| 588 | + } |
| 589 | + if ((IFX_REG_R32(PCIE_RC_DR(pcie_port)) & PCIE_RC_DR_DLL_UP)) { |
| 590 | + printk(KERN_INFO "PCIe DLL is UP\n"); |
| 591 | + } |
| 592 | + else { |
| 593 | + printk(KERN_INFO "PCIe DLL is DOWN!\n"); |
| 594 | + } |
| 595 | + |
| 596 | + if ((IFX_REG_R32(PCIE_LCTLSTS(pcie_port)) & PCIE_LCTLSTS_DLL_ACTIVE)) { |
| 597 | + printk(KERN_INFO "PCIE_LCTLSTS in DL_Active state!\n"); |
| 598 | + } |
| 599 | + else { |
| 600 | + printk(KERN_INFO "PCIE_LCTLSTS NOT in DL_Active state!\n"); |
| 601 | + } |
| 602 | + } |
| 603 | +#endif /* IFX_PCIE_DBG */ |
| 604 | + |
| 605 | +/* XXX, this function is not needed in fact */ |
| 606 | +static INLINE void |
| 607 | +pcie_mem_io_setup(int pcie_port) |
| 608 | +{ |
| 609 | + u32 reg; |
| 610 | + /* |
| 611 | + * BAR[0:1] readonly register |
| 612 | + * RC contains only minimal BARs for packets mapped to this device |
| 613 | + * Mem/IO filters defines a range of memory occupied by memory mapped IO devices that |
| 614 | + * reside on the downstream side fo the bridge. |
| 615 | + */ |
| 616 | + reg = SM((PCIE_MEM_PHY_PORT_TO_END(pcie_port) >> 20), PCIE_MBML_MEM_LIMIT_ADDR) |
| 617 | + | SM((PCIE_MEM_PHY_PORT_TO_BASE(pcie_port) >> 20), PCIE_MBML_MEM_BASE_ADDR); |
| 618 | + |
| 619 | + IFX_REG_W32(reg, PCIE_MBML(pcie_port)); |
| 620 | + |
| 621 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_MBML: 0x%08x\n", |
| 622 | + __func__, IFX_REG_R32(PCIE_MBML(pcie_port))); |
| 623 | + |
| 624 | +#ifdef IFX_PCIE_PREFETCH_MEM_64BIT |
| 625 | + reg = SM((PCIE_MEM_PHY_PORT_TO_END(pcie_port) >> 20), PCIE_PMBL_END_ADDR) |
| 626 | + | SM((PCIE_MEM_PHY_PORT_TO_BASE(pcie_port) >> 20), PCIE_PMBL_UPPER_12BIT) |
| 627 | + | PCIE_PMBL_64BIT_ADDR; |
| 628 | + IFX_REG_W32(reg, PCIE_PMBL(pcie_port)); |
| 629 | + |
| 630 | + /* Must configure upper 32bit */ |
| 631 | + IFX_REG_W32(0, PCIE_PMBU32(pcie_port)); |
| 632 | + IFX_REG_W32(0, PCIE_PMLU32(pcie_port)); |
| 633 | +#else |
| 634 | + /* PCIe_PBML, same as MBML */ |
| 635 | + IFX_REG_W32(IFX_REG_R32(PCIE_MBML(pcie_port)), PCIE_PMBL(pcie_port)); |
| 636 | +#endif |
| 637 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_PMBL: 0x%08x\n", |
| 638 | + __func__, IFX_REG_R32(PCIE_PMBL(pcie_port))); |
| 639 | + |
| 640 | + /* IO Address Range */ |
| 641 | + reg = SM((PCIE_IO_PHY_PORT_TO_END(pcie_port) >> 12), PCIE_IOBLSECS_IO_LIMIT_ADDR) |
| 642 | + | SM((PCIE_IO_PHY_PORT_TO_BASE(pcie_port) >> 12), PCIE_IOBLSECS_IO_BASE_ADDR); |
| 643 | +#ifdef IFX_PCIE_IO_32BIT |
| 644 | + reg |= PCIE_IOBLSECS_32BIT_IO_ADDR; |
| 645 | +#endif /* IFX_PCIE_IO_32BIT */ |
| 646 | + IFX_REG_W32(reg, PCIE_IOBLSECS(pcie_port)); |
| 647 | + |
| 648 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_IOBLSECS: 0x%08x\n", |
| 649 | + __func__, IFX_REG_R32(PCIE_IOBLSECS(pcie_port))); |
| 650 | +#ifdef IFX_PCIE_IO_32BIT |
| 651 | + reg = SM((PCIE_IO_PHY_PORT_TO_END(pcie_port) >> 16), PCIE_IO_BANDL_UPPER_16BIT_IO_LIMIT) |
| 652 | + | SM((PCIE_IO_PHY_PORT_TO_BASE(pcie_port) >> 16), PCIE_IO_BANDL_UPPER_16BIT_IO_BASE); |
| 653 | + IFX_REG_W32(reg, PCIE_IO_BANDL(pcie_port)); |
| 654 | + |
| 655 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_IO_BANDL: 0x%08x\n", |
| 656 | + __func__, IFX_REG_R32(PCIE_IO_BANDL(pcie_port))); |
| 657 | +#endif /* IFX_PCIE_IO_32BIT */ |
| 658 | +} |
| 659 | + |
| 660 | +static INLINE void |
| 661 | +pcie_msi_setup(int pcie_port) |
| 662 | +{ |
| 663 | + u32 reg; |
| 664 | + |
| 665 | + /* XXX, MSI stuff should only apply to EP */ |
| 666 | + /* MSI Capability: Only enable 32-bit addresses */ |
| 667 | + reg = IFX_REG_R32(PCIE_MCAPR(pcie_port)); |
| 668 | + reg &= ~PCIE_MCAPR_ADDR64_CAP; |
| 669 | + |
| 670 | + reg |= PCIE_MCAPR_MSI_ENABLE; |
| 671 | + |
| 672 | + /* Disable multiple message */ |
| 673 | + reg &= ~(PCIE_MCAPR_MULTI_MSG_CAP | PCIE_MCAPR_MULTI_MSG_ENABLE); |
| 674 | + IFX_REG_W32(reg, PCIE_MCAPR(pcie_port)); |
| 675 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_MCAPR: 0x%08x\n", |
| 676 | + __func__, IFX_REG_R32(PCIE_MCAPR(pcie_port))); |
| 677 | +} |
| 678 | + |
| 679 | +static INLINE void |
| 680 | +pcie_pm_setup(int pcie_port) |
| 681 | +{ |
| 682 | + u32 reg; |
| 683 | + |
| 684 | + /* Enable PME, Soft reset enabled */ |
| 685 | + reg = IFX_REG_R32(PCIE_PM_CSR(pcie_port)); |
| 686 | + reg |= PCIE_PM_CSR_PME_ENABLE | PCIE_PM_CSR_SW_RST; |
| 687 | + IFX_REG_W32(reg, PCIE_PM_CSR(pcie_port)); |
| 688 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_PM_CSR: 0x%08x\n", |
| 689 | + __func__, IFX_REG_R32(PCIE_PM_CSR(pcie_port))); |
| 690 | +} |
| 691 | + |
| 692 | +static INLINE void |
| 693 | +pcie_bus_setup(int pcie_port) |
| 694 | +{ |
| 695 | + u32 reg; |
| 696 | + |
| 697 | + reg = SM(0, PCIE_BNR_PRIMARY_BUS_NUM) | SM(1, PCIE_PNR_SECONDARY_BUS_NUM) | SM(0xFF, PCIE_PNR_SUB_BUS_NUM); |
| 698 | + IFX_REG_W32(reg, PCIE_BNR(pcie_port)); |
| 699 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_BNR: 0x%08x\n", |
| 700 | + __func__, IFX_REG_R32(PCIE_BNR(pcie_port))); |
| 701 | +} |
| 702 | + |
| 703 | +static INLINE void |
| 704 | +pcie_device_setup(int pcie_port) |
| 705 | +{ |
| 706 | + u32 reg; |
| 707 | + |
| 708 | + /* Device capability register, set up Maximum payload size */ |
| 709 | + reg = IFX_REG_R32(PCIE_DCAP(pcie_port)); |
| 710 | + reg |= PCIE_DCAP_ROLE_BASE_ERR_REPORT; |
| 711 | + reg |= SM(PCIE_MAX_PAYLOAD_128, PCIE_DCAP_MAX_PAYLOAD_SIZE); |
| 712 | + |
| 713 | + /* Only available for EP */ |
| 714 | + reg &= ~(PCIE_DCAP_EP_L0S_LATENCY | PCIE_DCAP_EP_L1_LATENCY); |
| 715 | + IFX_REG_W32(reg, PCIE_DCAP(pcie_port)); |
| 716 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_DCAP: 0x%08x\n", |
| 717 | + __func__, IFX_REG_R32(PCIE_DCAP(pcie_port))); |
| 718 | + |
| 719 | + /* Device control and status register */ |
| 720 | + /* Set Maximum Read Request size for the device as a Requestor */ |
| 721 | + reg = IFX_REG_R32(PCIE_DCTLSTS(pcie_port)); |
| 722 | + |
| 723 | + /* |
| 724 | + * Request size can be larger than the MPS used, but the completions returned |
| 725 | + * for the read will be bounded by the MPS size. |
| 726 | + * In our system, Max request size depends on AHB burst size. It is 64 bytes. |
| 727 | + * but we set it as 128 as minimum one. |
| 728 | + */ |
| 729 | + reg |= SM(PCIE_MAX_PAYLOAD_128, PCIE_DCTLSTS_MAX_READ_SIZE) |
| 730 | + | SM(PCIE_MAX_PAYLOAD_128, PCIE_DCTLSTS_MAX_PAYLOAD_SIZE); |
| 731 | + |
| 732 | + /* Enable relaxed ordering, no snoop, and all kinds of errors */ |
| 733 | + reg |= PCIE_DCTLSTS_RELAXED_ORDERING_EN | PCIE_DCTLSTS_ERR_EN | PCIE_DCTLSTS_NO_SNOOP_EN; |
| 734 | + |
| 735 | + IFX_REG_W32(reg, PCIE_DCTLSTS(pcie_port)); |
| 736 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_DCTLSTS: 0x%08x\n", |
| 737 | + __func__, IFX_REG_R32(PCIE_DCTLSTS(pcie_port))); |
| 738 | +} |
| 739 | + |
| 740 | +static INLINE void |
| 741 | +pcie_link_setup(int pcie_port) |
| 742 | +{ |
| 743 | + u32 reg; |
| 744 | + |
| 745 | + /* |
| 746 | + * XXX, Link capability register, bit 18 for EP CLKREQ# dynamic clock management for L1, L2/3 CPM |
| 747 | + * L0s is reported during link training via TS1 order set by N_FTS |
| 748 | + */ |
| 749 | + reg = IFX_REG_R32(PCIE_LCAP(pcie_port)); |
| 750 | + reg &= ~PCIE_LCAP_L0S_EIXT_LATENCY; |
| 751 | + reg |= SM(3, PCIE_LCAP_L0S_EIXT_LATENCY); |
| 752 | + IFX_REG_W32(reg, PCIE_LCAP(pcie_port)); |
| 753 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_LCAP: 0x%08x\n", |
| 754 | + __func__, IFX_REG_R32(PCIE_LCAP(pcie_port))); |
| 755 | + |
| 756 | + /* Link control and status register */ |
| 757 | + reg = IFX_REG_R32(PCIE_LCTLSTS(pcie_port)); |
| 758 | + |
| 759 | + /* Link Enable, ASPM enabled */ |
| 760 | + reg &= ~PCIE_LCTLSTS_LINK_DISABLE; |
| 761 | + |
| 762 | +#ifdef CONFIG_PCIEASPM |
| 763 | + /* |
| 764 | + * We use the same physical reference clock that the platform provides on the connector |
| 765 | + * It paved the way for ASPM to calculate the new exit Latency |
| 766 | + */ |
| 767 | + reg |= PCIE_LCTLSTS_SLOT_CLK_CFG; |
| 768 | + reg |= PCIE_LCTLSTS_COM_CLK_CFG; |
| 769 | + /* |
| 770 | + * We should disable ASPM by default except that we have dedicated power management support |
| 771 | + * Enable ASPM will cause the system hangup/instability, performance degration |
| 772 | + */ |
| 773 | + reg |= PCIE_LCTLSTS_ASPM_ENABLE; |
| 774 | +#else |
| 775 | + reg &= ~PCIE_LCTLSTS_ASPM_ENABLE; |
| 776 | +#endif /* CONFIG_PCIEASPM */ |
| 777 | + |
| 778 | + /* |
| 779 | + * The maximum size of any completion with data packet is bounded by the MPS setting |
| 780 | + * in device control register |
| 781 | + */ |
| 782 | + |
| 783 | + /* RCB may cause multiple split transactions, two options available, we use 64 byte RCB */ |
| 784 | + reg &= ~ PCIE_LCTLSTS_RCB128; |
| 785 | + |
| 786 | + IFX_REG_W32(reg, PCIE_LCTLSTS(pcie_port)); |
| 787 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_LCTLSTS: 0x%08x\n", |
| 788 | + __func__, IFX_REG_R32(PCIE_LCTLSTS(pcie_port))); |
| 789 | +} |
| 790 | + |
| 791 | +static INLINE void |
| 792 | +pcie_error_setup(int pcie_port) |
| 793 | +{ |
| 794 | + u32 reg; |
| 795 | + |
| 796 | + /* |
| 797 | + * Forward ERR_COR, ERR_NONFATAL, ERR_FATAL to the backbone |
| 798 | + * Poisoned write TLPs and completions indicating poisoned TLPs will set the PCIe_PCICMDSTS.MDPE |
| 799 | + */ |
| 800 | + reg = IFX_REG_R32(PCIE_INTRBCTRL(pcie_port)); |
| 801 | + reg |= PCIE_INTRBCTRL_SERR_ENABLE | PCIE_INTRBCTRL_PARITY_ERR_RESP_ENABLE; |
| 802 | + |
| 803 | + IFX_REG_W32(reg, PCIE_INTRBCTRL(pcie_port)); |
| 804 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_INTRBCTRL: 0x%08x\n", |
| 805 | + __func__, IFX_REG_R32(PCIE_INTRBCTRL(pcie_port))); |
| 806 | + |
| 807 | + /* Uncorrectable Error Mask Register, Unmask <enable> all bits in PCIE_UESR */ |
| 808 | + reg = IFX_REG_R32(PCIE_UEMR(pcie_port)); |
| 809 | + reg &= ~PCIE_ALL_UNCORRECTABLE_ERR; |
| 810 | + IFX_REG_W32(reg, PCIE_UEMR(pcie_port)); |
| 811 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_UEMR: 0x%08x\n", |
| 812 | + __func__, IFX_REG_R32(PCIE_UEMR(pcie_port))); |
| 813 | + |
| 814 | + /* Uncorrectable Error Severity Register, ALL errors are FATAL */ |
| 815 | + IFX_REG_W32(PCIE_ALL_UNCORRECTABLE_ERR, PCIE_UESR(pcie_port)); |
| 816 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_UESR: 0x%08x\n", |
| 817 | + __func__, IFX_REG_R32(PCIE_UESR(pcie_port))); |
| 818 | + |
| 819 | + /* Correctable Error Mask Register, unmask <enable> all bits */ |
| 820 | + reg = IFX_REG_R32(PCIE_CEMR(pcie_port)); |
| 821 | + reg &= ~PCIE_CORRECTABLE_ERR; |
| 822 | + IFX_REG_W32(reg, PCIE_CEMR(pcie_port)); |
| 823 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_CEMR: 0x%08x\n", |
| 824 | + __func__, IFX_REG_R32(PCIE_CEMR(pcie_port))); |
| 825 | + |
| 826 | + /* Advanced Error Capabilities and Control Registr */ |
| 827 | + reg = IFX_REG_R32(PCIE_AECCR(pcie_port)); |
| 828 | + reg |= PCIE_AECCR_ECRC_CHECK_EN | PCIE_AECCR_ECRC_GEN_EN; |
| 829 | + IFX_REG_W32(reg, PCIE_AECCR(pcie_port)); |
| 830 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_AECCR: 0x%08x\n", |
| 831 | + __func__, IFX_REG_R32(PCIE_AECCR(pcie_port))); |
| 832 | + |
| 833 | + /* Root Error Command Register, Report all types of errors */ |
| 834 | + reg = IFX_REG_R32(PCIE_RECR(pcie_port)); |
| 835 | + reg |= PCIE_RECR_ERR_REPORT_EN; |
| 836 | + IFX_REG_W32(reg, PCIE_RECR(pcie_port)); |
| 837 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_RECR: 0x%08x\n", |
| 838 | + __func__, IFX_REG_R32(PCIE_RECR(pcie_port))); |
| 839 | + |
| 840 | + /* Clear the Root status register */ |
| 841 | + reg = IFX_REG_R32(PCIE_RESR(pcie_port)); |
| 842 | + IFX_REG_W32(reg, PCIE_RESR(pcie_port)); |
| 843 | +} |
| 844 | + |
| 845 | +static INLINE void |
| 846 | +pcie_root_setup(int pcie_port) |
| 847 | +{ |
| 848 | + u32 reg; |
| 849 | + |
| 850 | + /* Root control and capabilities register */ |
| 851 | + reg = IFX_REG_R32(PCIE_RCTLCAP(pcie_port)); |
| 852 | + reg |= PCIE_RCTLCAP_SERR_ENABLE | PCIE_RCTLCAP_PME_INT_EN; |
| 853 | + IFX_REG_W32(reg, PCIE_RCTLCAP(pcie_port)); |
| 854 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_RCTLCAP: 0x%08x\n", |
| 855 | + __func__, IFX_REG_R32(PCIE_RCTLCAP(pcie_port))); |
| 856 | +} |
| 857 | + |
| 858 | +static INLINE void |
| 859 | +pcie_vc_setup(int pcie_port) |
| 860 | +{ |
| 861 | + u32 reg; |
| 862 | + |
| 863 | + /* Port VC Capability Register 2 */ |
| 864 | + reg = IFX_REG_R32(PCIE_PVC2(pcie_port)); |
| 865 | + reg &= ~PCIE_PVC2_VC_ARB_WRR; |
| 866 | + reg |= PCIE_PVC2_VC_ARB_16P_FIXED_WRR; |
| 867 | + IFX_REG_W32(reg, PCIE_PVC2(pcie_port)); |
| 868 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_PVC2: 0x%08x\n", |
| 869 | + __func__, IFX_REG_R32(PCIE_PVC2(pcie_port))); |
| 870 | + |
| 871 | + /* VC0 Resource Capability Register */ |
| 872 | + reg = IFX_REG_R32(PCIE_VC0_RC(pcie_port)); |
| 873 | + reg &= ~PCIE_VC0_RC_REJECT_SNOOP; |
| 874 | + IFX_REG_W32(reg, PCIE_VC0_RC(pcie_port)); |
| 875 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_VC0_RC: 0x%08x\n", |
| 876 | + __func__, IFX_REG_R32(PCIE_VC0_RC(pcie_port))); |
| 877 | +} |
| 878 | + |
| 879 | +static INLINE void |
| 880 | +pcie_port_logic_setup(int pcie_port) |
| 881 | +{ |
| 882 | + u32 reg; |
| 883 | + |
| 884 | + /* FTS number, default 12, increase to 63, may increase time from/to L0s to L0 */ |
| 885 | + reg = IFX_REG_R32(PCIE_AFR(pcie_port)); |
| 886 | + reg &= ~(PCIE_AFR_FTS_NUM | PCIE_AFR_COM_FTS_NUM); |
| 887 | + reg |= SM(PCIE_AFR_FTS_NUM_DEFAULT, PCIE_AFR_FTS_NUM) |
| 888 | + | SM(PCIE_AFR_FTS_NUM_DEFAULT, PCIE_AFR_COM_FTS_NUM); |
| 889 | + /* L0s and L1 entry latency */ |
| 890 | + reg &= ~(PCIE_AFR_L0S_ENTRY_LATENCY | PCIE_AFR_L1_ENTRY_LATENCY); |
| 891 | + reg |= SM(PCIE_AFR_L0S_ENTRY_LATENCY_DEFAULT, PCIE_AFR_L0S_ENTRY_LATENCY) |
| 892 | + | SM(PCIE_AFR_L1_ENTRY_LATENCY_DEFAULT, PCIE_AFR_L1_ENTRY_LATENCY); |
| 893 | + IFX_REG_W32(reg, PCIE_AFR(pcie_port)); |
| 894 | + |
| 895 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_AFR: 0x%08x\n", |
| 896 | + __func__, IFX_REG_R32(PCIE_AFR(pcie_port))); |
| 897 | + |
| 898 | + /* Port Link Control Register */ |
| 899 | + reg = IFX_REG_R32(PCIE_PLCR(pcie_port)); |
| 900 | + reg |= PCIE_PLCR_DLL_LINK_EN; /* Enable the DLL link */ |
| 901 | + IFX_REG_W32(reg, PCIE_PLCR(pcie_port)); |
| 902 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_PLCR: 0x%08x\n", |
| 903 | + __func__, IFX_REG_R32(PCIE_PLCR(pcie_port))); |
| 904 | + |
| 905 | + /* Lane Skew Register */ |
| 906 | + reg = IFX_REG_R32(PCIE_LSR(pcie_port)); |
| 907 | + /* Enable ACK/NACK and FC */ |
| 908 | + reg &= ~(PCIE_LSR_ACKNAK_DISABLE | PCIE_LSR_FC_DISABLE); |
| 909 | + IFX_REG_W32(reg, PCIE_LSR(pcie_port)); |
| 910 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_LSR: 0x%08x\n", |
| 911 | + __func__, IFX_REG_R32(PCIE_LSR(pcie_port))); |
| 912 | + |
| 913 | + /* Symbol Timer Register and Filter Mask Register 1 */ |
| 914 | + reg = IFX_REG_R32(PCIE_STRFMR(pcie_port)); |
| 915 | + |
| 916 | + /* Default SKP interval is very accurate already, 5us */ |
| 917 | + /* Enable IO/CFG transaction */ |
| 918 | + reg |= PCIE_STRFMR_RX_CFG_TRANS_ENABLE | PCIE_STRFMR_RX_IO_TRANS_ENABLE; |
| 919 | + /* Disable FC WDT */ |
| 920 | + reg &= ~PCIE_STRFMR_FC_WDT_DISABLE; |
| 921 | + IFX_REG_W32(reg, PCIE_STRFMR(pcie_port)); |
| 922 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_STRFMR: 0x%08x\n", |
| 923 | + __func__, IFX_REG_R32(PCIE_STRFMR(pcie_port))); |
| 924 | + |
| 925 | + /* Filter Masker Register 2 */ |
| 926 | + reg = IFX_REG_R32(PCIE_FMR2(pcie_port)); |
| 927 | + reg |= PCIE_FMR2_VENDOR_MSG1_PASSED_TO_TRGT1 | PCIE_FMR2_VENDOR_MSG0_PASSED_TO_TRGT1; |
| 928 | + IFX_REG_W32(reg, PCIE_FMR2(pcie_port)); |
| 929 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_FMR2: 0x%08x\n", |
| 930 | + __func__, IFX_REG_R32(PCIE_FMR2(pcie_port))); |
| 931 | + |
| 932 | + /* VC0 Completion Receive Queue Control Register */ |
| 933 | + reg = IFX_REG_R32(PCIE_VC0_CRQCR(pcie_port)); |
| 934 | + reg &= ~PCIE_VC0_CRQCR_CPL_TLP_QUEUE_MODE; |
| 935 | + reg |= SM(PCIE_VC0_TLP_QUEUE_MODE_BYPASS, PCIE_VC0_CRQCR_CPL_TLP_QUEUE_MODE); |
| 936 | + IFX_REG_W32(reg, PCIE_VC0_CRQCR(pcie_port)); |
| 937 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_VC0_CRQCR: 0x%08x\n", |
| 938 | + __func__, IFX_REG_R32(PCIE_VC0_CRQCR(pcie_port))); |
| 939 | +} |
| 940 | + |
| 941 | +static INLINE void |
| 942 | +pcie_rc_cfg_reg_setup(int pcie_port) |
| 943 | +{ |
| 944 | + pcie_ltssm_disable(pcie_port); |
| 945 | + pcie_mem_io_setup(pcie_port); |
| 946 | + pcie_msi_setup(pcie_port); |
| 947 | + pcie_pm_setup(pcie_port); |
| 948 | + pcie_bus_setup(pcie_port); |
| 949 | + pcie_device_setup(pcie_port); |
| 950 | + pcie_link_setup(pcie_port); |
| 951 | + pcie_error_setup(pcie_port); |
| 952 | + pcie_root_setup(pcie_port); |
| 953 | + pcie_vc_setup(pcie_port); |
| 954 | + pcie_port_logic_setup(pcie_port); |
| 955 | +} |
| 956 | + |
| 957 | +static int |
| 958 | +ifx_pcie_wait_phy_link_up(int pcie_port) |
| 959 | +{ |
| 960 | +#define IFX_PCIE_PHY_LINK_UP_TIMEOUT 1000 /* XXX, tunable */ |
| 961 | + int i; |
| 962 | + |
| 963 | + /* Wait for PHY link is up */ |
| 964 | + for (i = 0; i < IFX_PCIE_PHY_LINK_UP_TIMEOUT; i++) { |
| 965 | + if (ifx_pcie_link_up(pcie_port)) { |
| 966 | + break; |
| 967 | + } |
| 968 | + udelay(100); |
| 969 | + } |
| 970 | + if (i >= IFX_PCIE_PHY_LINK_UP_TIMEOUT) { |
| 971 | + printk(KERN_ERR "%s timeout\n", __func__); |
| 972 | + return -1; |
| 973 | + } |
| 974 | + |
| 975 | + /* Check data link up or not */ |
| 976 | + if (!(IFX_REG_R32(PCIE_RC_DR(pcie_port)) & PCIE_RC_DR_DLL_UP)) { |
| 977 | + printk(KERN_ERR "%s DLL link is still down\n", __func__); |
| 978 | + return -1; |
| 979 | + } |
| 980 | + |
| 981 | + /* Check Data link active or not */ |
| 982 | + if (!(IFX_REG_R32(PCIE_LCTLSTS(pcie_port)) & PCIE_LCTLSTS_DLL_ACTIVE)) { |
| 983 | + printk(KERN_ERR "%s DLL is not active\n", __func__); |
| 984 | + return -1; |
| 985 | + } |
| 986 | + return 0; |
| 987 | +#undef IFX_PCIE_PHY_LINK_UP_TIMEOUT |
| 988 | +} |
| 989 | + |
| 990 | +static INLINE int |
| 991 | +pcie_app_loigc_setup(int pcie_port) |
| 992 | +{ |
| 993 | +#ifdef IFX_PCIE_PHY_DBG |
| 994 | + pcie_disable_scrambling(pcie_port); |
| 995 | +#endif /* IFX_PCIE_PHY_DBG */ |
| 996 | + pcie_ahb_bus_error_suppress(pcie_port); |
| 997 | + |
| 998 | + /* Pull PCIe EP out of reset */ |
| 999 | + pcie_device_rst_deassert(pcie_port); |
| 1000 | + |
| 1001 | + /* Start LTSSM training between RC and EP */ |
| 1002 | + pcie_ltssm_enable(pcie_port); |
| 1003 | + |
| 1004 | + /* Check PHY status after enabling LTSSM */ |
| 1005 | + if (ifx_pcie_wait_phy_link_up(pcie_port) != 0) { |
| 1006 | + return -1; |
| 1007 | + } |
| 1008 | + return 0; |
| 1009 | +} |
| 1010 | + |
| 1011 | +/* |
| 1012 | + * Must be done after ltssm due to based on negotiated link |
| 1013 | + * width and payload size |
| 1014 | + * Update the Replay Time Limit. Empirically, some PCIe |
| 1015 | + * devices take a little longer to respond than expected under |
| 1016 | + * load. As a workaround for this we configure the Replay Time |
| 1017 | + * Limit to the value expected for a 512 byte MPS instead of |
| 1018 | + * our actual 128 byte MPS. The numbers below are directly |
| 1019 | + * from the PCIe spec table 3-4/5. |
| 1020 | + */ |
| 1021 | +static INLINE void |
| 1022 | +pcie_replay_time_update(int pcie_port) |
| 1023 | +{ |
| 1024 | + u32 reg; |
| 1025 | + int nlw; |
| 1026 | + int rtl; |
| 1027 | + |
| 1028 | + reg = IFX_REG_R32(PCIE_LCTLSTS(pcie_port)); |
| 1029 | + |
| 1030 | + nlw = MS(reg, PCIE_LCTLSTS_NEGOTIATED_LINK_WIDTH); |
| 1031 | + switch (nlw) { |
| 1032 | + case PCIE_MAX_LENGTH_WIDTH_X1: |
| 1033 | + rtl = 1677; |
| 1034 | + break; |
| 1035 | + case PCIE_MAX_LENGTH_WIDTH_X2: |
| 1036 | + rtl = 867; |
| 1037 | + break; |
| 1038 | + case PCIE_MAX_LENGTH_WIDTH_X4: |
| 1039 | + rtl = 462; |
| 1040 | + break; |
| 1041 | + case PCIE_MAX_LENGTH_WIDTH_X8: |
| 1042 | + rtl = 258; |
| 1043 | + break; |
| 1044 | + default: |
| 1045 | + rtl = 1677; |
| 1046 | + break; |
| 1047 | + } |
| 1048 | + reg = IFX_REG_R32(PCIE_ALTRT(pcie_port)); |
| 1049 | + reg &= ~PCIE_ALTRT_REPLAY_TIME_LIMIT; |
| 1050 | + reg |= SM(rtl, PCIE_ALTRT_REPLAY_TIME_LIMIT); |
| 1051 | + IFX_REG_W32(reg, PCIE_ALTRT(pcie_port)); |
| 1052 | + |
| 1053 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_ALTRT 0x%08x\n", |
| 1054 | + __func__, IFX_REG_R32(PCIE_ALTRT(pcie_port))); |
| 1055 | +} |
| 1056 | + |
| 1057 | +/* |
| 1058 | + * Table 359 Enhanced Configuration Address Mapping1) |
| 1059 | + * 1) This table is defined in Table 7-1, page 341, PCI Express Base Specification v1.1 |
| 1060 | + * Memory Address PCI Express Configuration Space |
| 1061 | + * A[(20+n-1):20] Bus Number 1 < n < 8 |
| 1062 | + * A[19:15] Device Number |
| 1063 | + * A[14:12] Function Number |
| 1064 | + * A[11:8] Extended Register Number |
| 1065 | + * A[7:2] Register Number |
| 1066 | + * A[1:0] Along with size of the access, used to generate Byte Enables |
| 1067 | + * For VR9, only the address bits [22:0] are mapped to the configuration space: |
| 1068 | + * . Address bits [22:20] select the target bus (1-of-8)1) |
| 1069 | + * . Address bits [19:15] select the target device (1-of-32) on the bus |
| 1070 | + * . Address bits [14:12] select the target function (1-of-8) within the device. |
| 1071 | + * . Address bits [11:2] selects the target dword (1-of-1024) within the selected function.s configuration space |
| 1072 | + * . Address bits [1:0] define the start byte location within the selected dword. |
| 1073 | + */ |
| 1074 | +static inline u32 |
| 1075 | +pcie_bus_addr(u8 bus_num, u16 devfn, int where) |
| 1076 | +{ |
| 1077 | + u32 addr; |
| 1078 | + u8 bus; |
| 1079 | + |
| 1080 | + if (!bus_num) { |
| 1081 | + /* type 0 */ |
| 1082 | + addr = ((PCI_SLOT(devfn) & 0x1F) << 15) | ((PCI_FUNC(devfn) & 0x7) << 12) | ((where & 0xFFF)& ~3); |
| 1083 | + } |
| 1084 | + else { |
| 1085 | + bus = bus_num; |
| 1086 | + /* type 1, only support 8 buses */ |
| 1087 | + addr = ((bus & 0x7) << 20) | ((PCI_SLOT(devfn) & 0x1F) << 15) | |
| 1088 | + ((PCI_FUNC(devfn) & 0x7) << 12) | ((where & 0xFFF) & ~3); |
| 1089 | + } |
| 1090 | + IFX_PCIE_PRINT(PCIE_MSG_CFG, "%s: bus addr : %02x:%02x.%01x/%02x, addr=%08x\n", |
| 1091 | + __func__, bus_num, PCI_SLOT(devfn), PCI_FUNC(devfn), where, addr); |
| 1092 | + return addr; |
| 1093 | +} |
| 1094 | + |
| 1095 | +static int |
| 1096 | +pcie_valid_config(int pcie_port, int bus, int dev) |
| 1097 | +{ |
| 1098 | + /* RC itself */ |
| 1099 | + if ((bus == 0) && (dev == 0)) { |
| 1100 | + return 1; |
| 1101 | + } |
| 1102 | + |
| 1103 | + /* No physical link */ |
| 1104 | + if (!ifx_pcie_link_up(pcie_port)) { |
| 1105 | + return 0; |
| 1106 | + } |
| 1107 | + |
| 1108 | + /* Bus zero only has RC itself |
| 1109 | + * XXX, check if EP will be integrated |
| 1110 | + */ |
| 1111 | + if ((bus == 0) && (dev != 0)) { |
| 1112 | + return 0; |
| 1113 | + } |
| 1114 | + |
| 1115 | + /* Maximum 8 buses supported for VRX */ |
| 1116 | + if (bus > 9) { |
| 1117 | + return 0; |
| 1118 | + } |
| 1119 | + |
| 1120 | + /* |
| 1121 | + * PCIe is PtP link, one bus only supports only one device |
| 1122 | + * except bus zero and PCIe switch which is virtual bus device |
| 1123 | + * The following two conditions really depends on the system design |
| 1124 | + * and attached the device. |
| 1125 | + * XXX, how about more new switch |
| 1126 | + */ |
| 1127 | + if ((bus == 1) && (dev != 0)) { |
| 1128 | + return 0; |
| 1129 | + } |
| 1130 | + |
| 1131 | + if ((bus >= 3) && (dev != 0)) { |
| 1132 | + return 0; |
| 1133 | + } |
| 1134 | + return 1; |
| 1135 | +} |
| 1136 | + |
| 1137 | +static INLINE u32 |
| 1138 | +ifx_pcie_cfg_rd(int pcie_port, u32 reg) |
| 1139 | +{ |
| 1140 | + return IFX_REG_R32((volatile u32 *)(PCIE_CFG_PORT_TO_BASE(pcie_port) + reg)); |
| 1141 | +} |
| 1142 | + |
| 1143 | +static INLINE void |
| 1144 | +ifx_pcie_cfg_wr(int pcie_port, unsigned int reg, u32 val) |
| 1145 | +{ |
| 1146 | + IFX_REG_W32( val, (volatile u32 *)(PCIE_CFG_PORT_TO_BASE(pcie_port) + reg)); |
| 1147 | +} |
| 1148 | + |
| 1149 | +static INLINE u32 |
| 1150 | +ifx_pcie_rc_cfg_rd(int pcie_port, u32 reg) |
| 1151 | +{ |
| 1152 | + return IFX_REG_R32((volatile u32 *)(PCIE_RC_PORT_TO_BASE(pcie_port) + reg)); |
| 1153 | +} |
| 1154 | + |
| 1155 | +static INLINE void |
| 1156 | +ifx_pcie_rc_cfg_wr(int pcie_port, unsigned int reg, u32 val) |
| 1157 | +{ |
| 1158 | + IFX_REG_W32(val, (volatile u32 *)(PCIE_RC_PORT_TO_BASE(pcie_port) + reg)); |
| 1159 | +} |
| 1160 | + |
| 1161 | +u32 |
| 1162 | +ifx_pcie_bus_enum_read_hack(int where, u32 value) |
| 1163 | +{ |
| 1164 | + u32 tvalue = value; |
| 1165 | + |
| 1166 | + if (where == PCI_PRIMARY_BUS) { |
| 1167 | + u8 primary, secondary, subordinate; |
| 1168 | + |
| 1169 | + primary = tvalue & 0xFF; |
| 1170 | + secondary = (tvalue >> 8) & 0xFF; |
| 1171 | + subordinate = (tvalue >> 16) & 0xFF; |
| 1172 | + primary += pcibios_1st_host_bus_nr(); |
| 1173 | + secondary += pcibios_1st_host_bus_nr(); |
| 1174 | + subordinate += pcibios_1st_host_bus_nr(); |
| 1175 | + tvalue = (tvalue & 0xFF000000) | (u32)primary | (u32)(secondary << 8) | (u32)(subordinate << 16); |
| 1176 | + } |
| 1177 | + return tvalue; |
| 1178 | +} |
| 1179 | + |
| 1180 | +u32 |
| 1181 | +ifx_pcie_bus_enum_write_hack(int where, u32 value) |
| 1182 | +{ |
| 1183 | + u32 tvalue = value; |
| 1184 | + |
| 1185 | + if (where == PCI_PRIMARY_BUS) { |
| 1186 | + u8 primary, secondary, subordinate; |
| 1187 | + |
| 1188 | + primary = tvalue & 0xFF; |
| 1189 | + secondary = (tvalue >> 8) & 0xFF; |
| 1190 | + subordinate = (tvalue >> 16) & 0xFF; |
| 1191 | + if (primary > 0 && primary != 0xFF) { |
| 1192 | + primary -= pcibios_1st_host_bus_nr(); |
| 1193 | + } |
| 1194 | + |
| 1195 | + if (secondary > 0 && secondary != 0xFF) { |
| 1196 | + secondary -= pcibios_1st_host_bus_nr(); |
| 1197 | + } |
| 1198 | + if (subordinate > 0 && subordinate != 0xFF) { |
| 1199 | + subordinate -= pcibios_1st_host_bus_nr(); |
| 1200 | + } |
| 1201 | + tvalue = (tvalue & 0xFF000000) | (u32)primary | (u32)(secondary << 8) | (u32)(subordinate << 16); |
| 1202 | + } |
| 1203 | + else if (where == PCI_SUBORDINATE_BUS) { |
| 1204 | + u8 subordinate = tvalue & 0xFF; |
| 1205 | + |
| 1206 | + subordinate = subordinate > 0 ? subordinate - pcibios_1st_host_bus_nr() : 0; |
| 1207 | + tvalue = subordinate; |
| 1208 | + } |
| 1209 | + return tvalue; |
| 1210 | +} |
| 1211 | + |
| 1212 | +/** |
| 1213 | + * \fn static int ifx_pcie_read_config(struct pci_bus *bus, u32 devfn, |
| 1214 | + * int where, int size, u32 *value) |
| 1215 | + * \brief Read a value from configuration space |
| 1216 | + * |
| 1217 | + * \param[in] bus Pointer to pci bus |
| 1218 | + * \param[in] devfn PCI device function number |
| 1219 | + * \param[in] where PCI register number |
| 1220 | + * \param[in] size Register read size |
| 1221 | + * \param[out] value Pointer to return value |
| 1222 | + * \return PCIBIOS_BAD_REGISTER_NUMBER Invalid register number |
| 1223 | + * \return PCIBIOS_FUNC_NOT_SUPPORTED PCI function not supported |
| 1224 | + * \return PCIBIOS_DEVICE_NOT_FOUND PCI device not found |
| 1225 | + * \return PCIBIOS_SUCCESSFUL OK |
| 1226 | + * \ingroup IFX_PCIE_OS |
| 1227 | + */ |
| 1228 | +static int |
| 1229 | +ifx_pcie_read_config(struct pci_bus *bus, u32 devfn, |
| 1230 | + int where, int size, u32 *value) |
| 1231 | +{ |
| 1232 | + u32 data = 0; |
| 1233 | + int bus_number = bus->number; |
| 1234 | + static const u32 mask[8] = {0, 0xff, 0xffff, 0, 0xffffffff, 0, 0, 0}; |
| 1235 | + int ret = PCIBIOS_SUCCESSFUL; |
| 1236 | + struct ifx_pci_controller *ctrl = bus->sysdata; |
| 1237 | + int pcie_port = ctrl->port; |
| 1238 | + |
| 1239 | + if (unlikely(size != 1 && size != 2 && size != 4)){ |
| 1240 | + ret = PCIBIOS_BAD_REGISTER_NUMBER; |
| 1241 | + goto out; |
| 1242 | + } |
| 1243 | + |
| 1244 | + /* Make sure the address is aligned to natural boundary */ |
| 1245 | + if (unlikely(((size - 1) & where))) { |
| 1246 | + ret = PCIBIOS_BAD_REGISTER_NUMBER; |
| 1247 | + goto out; |
| 1248 | + } |
| 1249 | + |
| 1250 | + /* |
| 1251 | + * If we are second controller, we have to cheat OS so that it assume |
| 1252 | + * its bus number starts from 0 in host controller |
| 1253 | + */ |
| 1254 | + bus_number = ifx_pcie_bus_nr_deduct(bus_number, pcie_port); |
| 1255 | + |
| 1256 | + /* |
| 1257 | + * We need to force the bus number to be zero on the root |
| 1258 | + * bus. Linux numbers the 2nd root bus to start after all |
| 1259 | + * busses on root 0. |
| 1260 | + */ |
| 1261 | + if (bus->parent == NULL) { |
| 1262 | + bus_number = 0; |
| 1263 | + } |
| 1264 | + |
| 1265 | + /* |
| 1266 | + * PCIe only has a single device connected to it. It is |
| 1267 | + * always device ID 0. Don't bother doing reads for other |
| 1268 | + * device IDs on the first segment. |
| 1269 | + */ |
| 1270 | + if ((bus_number == 0) && (PCI_SLOT(devfn) != 0)) { |
| 1271 | + ret = PCIBIOS_FUNC_NOT_SUPPORTED; |
| 1272 | + goto out; |
| 1273 | + } |
| 1274 | + |
| 1275 | + if (pcie_valid_config(pcie_port, bus_number, PCI_SLOT(devfn)) == 0) { |
| 1276 | + *value = 0xffffffff; |
| 1277 | + ret = PCIBIOS_DEVICE_NOT_FOUND; |
| 1278 | + goto out; |
| 1279 | + } |
| 1280 | + |
| 1281 | + IFX_PCIE_PRINT(PCIE_MSG_READ_CFG, "%s: %02x:%02x.%01x/%02x:%01d\n", __func__, bus_number, |
| 1282 | + PCI_SLOT(devfn), PCI_FUNC(devfn), where, size); |
| 1283 | + |
| 1284 | + PCIE_IRQ_LOCK(ifx_pcie_lock); |
| 1285 | + if (bus_number == 0) { /* RC itself */ |
| 1286 | + u32 t; |
| 1287 | + |
| 1288 | + t = (where & ~3); |
| 1289 | + data = ifx_pcie_rc_cfg_rd(pcie_port, t); |
| 1290 | + IFX_PCIE_PRINT(PCIE_MSG_READ_CFG, "%s: rd local cfg, offset:%08x, data:%08x\n", |
| 1291 | + __func__, t, data); |
| 1292 | + } |
| 1293 | + else { |
| 1294 | + u32 addr = pcie_bus_addr(bus_number, devfn, where); |
| 1295 | + |
| 1296 | + data = ifx_pcie_cfg_rd(pcie_port, addr); |
| 1297 | + if (pcie_port == IFX_PCIE_PORT0) { |
| 1298 | + #ifdef CONFIG_IFX_PCIE_HW_SWAP |
| 1299 | + data = le32_to_cpu(data); |
| 1300 | + #endif /* CONFIG_IFX_PCIE_HW_SWAP */ |
| 1301 | + } |
| 1302 | + else { |
| 1303 | + #ifdef CONFIG_IFX_PCIE1_HW_SWAP |
| 1304 | + data = le32_to_cpu(data); |
| 1305 | + #endif /* CONFIG_IFX_PCIE_HW_SWAP */ |
| 1306 | + } |
| 1307 | + } |
| 1308 | + /* To get a correct PCI topology, we have to restore the bus number to OS */ |
| 1309 | + data = ifx_pcie_bus_enum_hack(bus, devfn, where, data, pcie_port, 1); |
| 1310 | + |
| 1311 | + PCIE_IRQ_UNLOCK(ifx_pcie_lock); |
| 1312 | + IFX_PCIE_PRINT(PCIE_MSG_READ_CFG, "%s: read config: data=%08x raw=%08x\n", |
| 1313 | + __func__, (data >> (8 * (where & 3))) & mask[size & 7], data); |
| 1314 | + |
| 1315 | + *value = (data >> (8 * (where & 3))) & mask[size & 7]; |
| 1316 | +out: |
| 1317 | + return ret; |
| 1318 | +} |
| 1319 | + |
| 1320 | +static u32 |
| 1321 | +ifx_pcie_size_to_value(int where, int size, u32 data, u32 value) |
| 1322 | +{ |
| 1323 | + u32 shift; |
| 1324 | + u32 tdata = data; |
| 1325 | + |
| 1326 | + switch (size) { |
| 1327 | + case 1: |
| 1328 | + shift = (where & 0x3) << 3; |
| 1329 | + tdata &= ~(0xffU << shift); |
| 1330 | + tdata |= ((value & 0xffU) << shift); |
| 1331 | + break; |
| 1332 | + case 2: |
| 1333 | + shift = (where & 3) << 3; |
| 1334 | + tdata &= ~(0xffffU << shift); |
| 1335 | + tdata |= ((value & 0xffffU) << shift); |
| 1336 | + break; |
| 1337 | + case 4: |
| 1338 | + tdata = value; |
| 1339 | + break; |
| 1340 | + } |
| 1341 | + return tdata; |
| 1342 | +} |
| 1343 | + |
| 1344 | +/** |
| 1345 | + * \fn static static int ifx_pcie_write_config(struct pci_bus *bus, u32 devfn, |
| 1346 | + * int where, int size, u32 value) |
| 1347 | + * \brief Write a value to PCI configuration space |
| 1348 | + * |
| 1349 | + * \param[in] bus Pointer to pci bus |
| 1350 | + * \param[in] devfn PCI device function number |
| 1351 | + * \param[in] where PCI register number |
| 1352 | + * \param[in] size The register size to be written |
| 1353 | + * \param[in] value The valule to be written |
| 1354 | + * \return PCIBIOS_BAD_REGISTER_NUMBER Invalid register number |
| 1355 | + * \return PCIBIOS_DEVICE_NOT_FOUND PCI device not found |
| 1356 | + * \return PCIBIOS_SUCCESSFUL OK |
| 1357 | + * \ingroup IFX_PCIE_OS |
| 1358 | + */ |
| 1359 | +static int |
| 1360 | +ifx_pcie_write_config(struct pci_bus *bus, u32 devfn, |
| 1361 | + int where, int size, u32 value) |
| 1362 | +{ |
| 1363 | + int bus_number = bus->number; |
| 1364 | + int ret = PCIBIOS_SUCCESSFUL; |
| 1365 | + struct ifx_pci_controller *ctrl = bus->sysdata; |
| 1366 | + int pcie_port = ctrl->port; |
| 1367 | + u32 tvalue = value; |
| 1368 | + u32 data; |
| 1369 | + |
| 1370 | + /* Make sure the address is aligned to natural boundary */ |
| 1371 | + if (unlikely(((size - 1) & where))) { |
| 1372 | + ret = PCIBIOS_BAD_REGISTER_NUMBER; |
| 1373 | + goto out; |
| 1374 | + } |
| 1375 | + /* |
| 1376 | + * If we are second controller, we have to cheat OS so that it assume |
| 1377 | + * its bus number starts from 0 in host controller |
| 1378 | + */ |
| 1379 | + bus_number = ifx_pcie_bus_nr_deduct(bus_number, pcie_port); |
| 1380 | + |
| 1381 | + /* |
| 1382 | + * We need to force the bus number to be zero on the root |
| 1383 | + * bus. Linux numbers the 2nd root bus to start after all |
| 1384 | + * busses on root 0. |
| 1385 | + */ |
| 1386 | + if (bus->parent == NULL) { |
| 1387 | + bus_number = 0; |
| 1388 | + } |
| 1389 | + |
| 1390 | + if (pcie_valid_config(pcie_port, bus_number, PCI_SLOT(devfn)) == 0) { |
| 1391 | + ret = PCIBIOS_DEVICE_NOT_FOUND; |
| 1392 | + goto out; |
| 1393 | + } |
| 1394 | + |
| 1395 | + IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG, "%s: %02x:%02x.%01x/%02x:%01d value=%08x\n", __func__, |
| 1396 | + bus_number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size, value); |
| 1397 | + |
| 1398 | + /* XXX, some PCIe device may need some delay */ |
| 1399 | + PCIE_IRQ_LOCK(ifx_pcie_lock); |
| 1400 | + |
| 1401 | + /* |
| 1402 | + * To configure the correct bus topology using native way, we have to cheat Os so that |
| 1403 | + * it can configure the PCIe hardware correctly. |
| 1404 | + */ |
| 1405 | + tvalue = ifx_pcie_bus_enum_hack(bus, devfn, where, value, pcie_port, 0); |
| 1406 | + |
| 1407 | + if (bus_number == 0) { /* RC itself */ |
| 1408 | + u32 t; |
| 1409 | + |
| 1410 | + t = (where & ~3); |
| 1411 | + IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG,"%s: wr local cfg, offset:%08x, fill:%08x\n", __func__, t, value); |
| 1412 | + data = ifx_pcie_rc_cfg_rd(pcie_port, t); |
| 1413 | + IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG,"%s: rd local cfg, offset:%08x, data:%08x\n", __func__, t, data); |
| 1414 | + |
| 1415 | + data = ifx_pcie_size_to_value(where, size, data, tvalue); |
| 1416 | + |
| 1417 | + IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG,"%s: wr local cfg, offset:%08x, value:%08x\n", __func__, t, data); |
| 1418 | + ifx_pcie_rc_cfg_wr(pcie_port, t, data); |
| 1419 | + IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG,"%s: rd local cfg, offset:%08x, value:%08x\n", |
| 1420 | + __func__, t, ifx_pcie_rc_cfg_rd(pcie_port, t)); |
| 1421 | + } |
| 1422 | + else { |
| 1423 | + u32 addr = pcie_bus_addr(bus_number, devfn, where); |
| 1424 | + |
| 1425 | + IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG,"%s: wr cfg, offset:%08x, fill:%08x\n", __func__, addr, value); |
| 1426 | + data = ifx_pcie_cfg_rd(pcie_port, addr); |
| 1427 | + if (pcie_port == IFX_PCIE_PORT0) { |
| 1428 | + #ifdef CONFIG_IFX_PCIE_HW_SWAP |
| 1429 | + data = le32_to_cpu(data); |
| 1430 | + #endif /* CONFIG_IFX_PCIE_HW_SWAP */ |
| 1431 | + } |
| 1432 | + else { |
| 1433 | + #ifdef CONFIG_IFX_PCIE1_HW_SWAP |
| 1434 | + data = le32_to_cpu(data); |
| 1435 | + #endif /* CONFIG_IFX_PCIE_HW_SWAP */ |
| 1436 | + } |
| 1437 | + IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG,"%s: rd cfg, offset:%08x, data:%08x\n", __func__, addr, data); |
| 1438 | + |
| 1439 | + data = ifx_pcie_size_to_value(where, size, data, tvalue); |
| 1440 | + if (pcie_port == IFX_PCIE_PORT0) { |
| 1441 | + #ifdef CONFIG_IFX_PCIE_HW_SWAP |
| 1442 | + data = cpu_to_le32(data); |
| 1443 | + #endif /* CONFIG_IFX_PCIE_HW_SWAP */ |
| 1444 | + } |
| 1445 | + else { |
| 1446 | + #ifdef CONFIG_IFX_PCIE1_HW_SWAP |
| 1447 | + data = cpu_to_le32(data); |
| 1448 | + #endif /* CONFIG_IFX_PCIE_HW_SWAP */ |
| 1449 | + } |
| 1450 | + IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG, "%s: wr cfg, offset:%08x, value:%08x\n", __func__, addr, data); |
| 1451 | + ifx_pcie_cfg_wr(pcie_port, addr, data); |
| 1452 | + IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG, "%s: rd cfg, offset:%08x, value:%08x\n", |
| 1453 | + __func__, addr, ifx_pcie_cfg_rd(pcie_port, addr)); |
| 1454 | + } |
| 1455 | + PCIE_IRQ_UNLOCK(ifx_pcie_lock); |
| 1456 | +out: |
| 1457 | + return ret; |
| 1458 | +} |
| 1459 | + |
| 1460 | +static struct resource ifx_pcie_io_resource = { |
| 1461 | + .name = "PCIe0 I/O space", |
| 1462 | + .start = PCIE_IO_PHY_BASE, |
| 1463 | + .end = PCIE_IO_PHY_END, |
| 1464 | + .flags = IORESOURCE_IO, |
| 1465 | +}; |
| 1466 | + |
| 1467 | +static struct resource ifx_pcie_mem_resource = { |
| 1468 | + .name = "PCIe0 Memory space", |
| 1469 | + .start = PCIE_MEM_PHY_BASE, |
| 1470 | + .end = PCIE_MEM_PHY_END, |
| 1471 | + .flags = IORESOURCE_MEM, |
| 1472 | +}; |
| 1473 | + |
| 1474 | +static struct pci_ops ifx_pcie_ops = { |
| 1475 | + .read = ifx_pcie_read_config, |
| 1476 | + .write = ifx_pcie_write_config, |
| 1477 | +}; |
| 1478 | + |
| 1479 | +#ifdef CONFIG_IFX_PCIE_2ND_CORE |
| 1480 | +static struct resource ifx_pcie1_io_resource = { |
| 1481 | + .name = "PCIe1 I/O space", |
| 1482 | + .start = PCIE1_IO_PHY_BASE, |
| 1483 | + .end = PCIE1_IO_PHY_END, |
| 1484 | + .flags = IORESOURCE_IO, |
| 1485 | +}; |
| 1486 | + |
| 1487 | +static struct resource ifx_pcie1_mem_resource = { |
| 1488 | + .name = "PCIe1 Memory space", |
| 1489 | + .start = PCIE1_MEM_PHY_BASE, |
| 1490 | + .end = PCIE1_MEM_PHY_END, |
| 1491 | + .flags = IORESOURCE_MEM, |
| 1492 | +}; |
| 1493 | +#endif /* CONFIG_IFX_PCIE_2ND_CORE */ |
| 1494 | + |
| 1495 | +static struct ifx_pci_controller ifx_pcie_controller[IFX_PCIE_CORE_NR] = { |
| 1496 | + { |
| 1497 | + .pcic = { |
| 1498 | + .pci_ops = &ifx_pcie_ops, |
| 1499 | + .mem_resource = &ifx_pcie_mem_resource, |
| 1500 | + .io_resource = &ifx_pcie_io_resource, |
| 1501 | + }, |
| 1502 | + .port = IFX_PCIE_PORT0, |
| 1503 | + }, |
| 1504 | +#ifdef CONFIG_IFX_PCIE_2ND_CORE |
| 1505 | + { |
| 1506 | + .pcic = { |
| 1507 | + .pci_ops = &ifx_pcie_ops, |
| 1508 | + .mem_resource = &ifx_pcie1_mem_resource, |
| 1509 | + .io_resource = &ifx_pcie1_io_resource, |
| 1510 | + }, |
| 1511 | + .port = IFX_PCIE_PORT1, |
| 1512 | + }, |
| 1513 | +#endif /* CONFIG_IFX_PCIE_2ND_CORE */ |
| 1514 | +}; |
| 1515 | + |
| 1516 | +#ifdef IFX_PCIE_ERROR_INT |
| 1517 | +static INLINE void |
| 1518 | +pcie_core_int_clear_all(int pcie_port) |
| 1519 | +{ |
| 1520 | + u32 reg; |
| 1521 | + |
| 1522 | + reg = IFX_REG_R32(PCIE_IRNCR(pcie_port)); |
| 1523 | + IFX_PCIE_PRINT(PCIE_MSG_ISR, "%s PCIE_IRNCR: 0x%08x\n", |
| 1524 | + __func__, IFX_REG_R32(PCIE_IRNCR(pcie_port))); |
| 1525 | + reg &= PCIE_RC_CORE_COMBINED_INT; |
| 1526 | + IFX_REG_W32(reg, PCIE_IRNCR(pcie_port)); |
| 1527 | +} |
| 1528 | + |
| 1529 | +static irqreturn_t |
| 1530 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19) |
| 1531 | +pcie_rc_core_isr(int irq, void *dev_id) |
| 1532 | +#else |
| 1533 | +pcie_rc_core_isr(int irq, void *dev_id, struct pt_regs *regs) |
| 1534 | +#endif |
| 1535 | +{ |
| 1536 | + struct ifx_pci_controller *ctrl = (struct ifx_pci_controller *)dev_id; |
| 1537 | + int pcie_port = ctrl->port; |
| 1538 | + |
| 1539 | + IFX_PCIE_PRINT(PCIE_MSG_ISR, "PCIe RC error intr %d\n", irq); |
| 1540 | + pcie_core_int_clear_all(pcie_port); |
| 1541 | + return IRQ_HANDLED; |
| 1542 | +} |
| 1543 | + |
| 1544 | +static int |
| 1545 | +pcie_rc_core_int_init(int pcie_port) |
| 1546 | +{ |
| 1547 | + int ret; |
| 1548 | + |
| 1549 | + IFX_PCIE_PRINT(PCIE_MSG_INIT, "%s enter \n", __func__); |
| 1550 | + |
| 1551 | + /* Enable core interrupt */ |
| 1552 | + IFX_REG_SET_BIT(PCIE_RC_CORE_COMBINED_INT, PCIE_IRNEN(pcie_port)); |
| 1553 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_IRNEN: 0x%08x\n", |
| 1554 | + __func__, IFX_REG_R32(PCIE_IRNEN(pcie_port))); |
| 1555 | + |
| 1556 | + /* Clear it first */ |
| 1557 | + IFX_REG_SET_BIT(PCIE_RC_CORE_COMBINED_INT, PCIE_IRNCR(pcie_port)); |
| 1558 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_IRNCR: 0x%08x\n", |
| 1559 | + __func__, IFX_REG_R32(PCIE_IRNCR(pcie_port))); |
| 1560 | + ret = request_irq(pcie_irqs[pcie_port].ir_irq.irq, pcie_rc_core_isr, IRQF_DISABLED, |
| 1561 | + pcie_irqs[pcie_port].ir_irq.name, &ifx_pcie_controller[pcie_port]); |
| 1562 | + if (ret) { |
| 1563 | + printk(KERN_ERR "%s request irq %d failed\n", __func__, IFX_PCIE_IR); |
| 1564 | + } |
| 1565 | + IFX_PCIE_PRINT(PCIE_MSG_INIT, "%s exit \n", __func__); |
| 1566 | + |
| 1567 | + return ret; |
| 1568 | +} |
| 1569 | +#endif /* IFX_PCIE_ERROR_INT */ |
| 1570 | + |
| 1571 | +/** |
| 1572 | + * \fn int ifx_pcie_bios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) |
| 1573 | + * \brief Map a PCI device to the appropriate interrupt line |
| 1574 | + * |
| 1575 | + * \param[in] dev The Linux PCI device structure for the device to map |
| 1576 | + * \param[in] slot The slot number for this device on __BUS 0__. Linux |
| 1577 | + * enumerates through all the bridges and figures out the |
| 1578 | + * slot on Bus 0 where this device eventually hooks to. |
| 1579 | + * \param[in] pin The PCI interrupt pin read from the device, then swizzled |
| 1580 | + * as it goes through each bridge. |
| 1581 | + * \return Interrupt number for the device |
| 1582 | + * \ingroup IFX_PCIE_OS |
| 1583 | + */ |
| 1584 | +int |
| 1585 | +ifx_pcie_bios_map_irq(IFX_PCI_CONST struct pci_dev *dev, u8 slot, u8 pin) |
| 1586 | +{ |
| 1587 | + u32 irq_bit = 0; |
| 1588 | + int irq = 0; |
| 1589 | + struct ifx_pci_controller *ctrl = dev->bus->sysdata; |
| 1590 | + int pcie_port = ctrl->port; |
| 1591 | + |
| 1592 | + printk("%s port %d dev %s slot %d pin %d \n", __func__, pcie_port, pci_name(dev), slot, pin); |
| 1593 | + |
| 1594 | + if ((pin == PCIE_LEGACY_DISABLE) || (pin > PCIE_LEGACY_INT_MAX)) { |
| 1595 | + printk(KERN_WARNING "WARNING: dev %s: invalid interrupt pin %d\n", pci_name(dev), pin); |
| 1596 | + return -1; |
| 1597 | + } |
| 1598 | + /* Pin index so minus one */ |
| 1599 | + irq_bit = pcie_irqs[pcie_port].legacy_irq[pin - 1].irq_bit; |
| 1600 | + irq = pcie_irqs[pcie_port].legacy_irq[pin - 1].irq; |
| 1601 | + IFX_REG_SET_BIT(irq_bit, PCIE_IRNEN(pcie_port)); |
| 1602 | +// printk("%s PCIE_IRNEN: 0x%08x\n", __func__, IFX_REG_R32(PCIE_IRNEN(pcie_port))); |
| 1603 | + IFX_REG_SET_BIT(irq_bit, PCIE_IRNCR(pcie_port)); |
| 1604 | + // printk("%s PCIE_IRNCR: 0x%08x\n", __func__, IFX_REG_R32(PCIE_IRNCR(pcie_port))); |
| 1605 | + printk("%s dev %s irq %d assigned\n", __func__, pci_name(dev), irq); |
| 1606 | +// printk("%s dev %s: exit\n", __func__, pci_name(dev)); |
| 1607 | + return irq; |
| 1608 | +} |
| 1609 | + |
| 1610 | +/** |
| 1611 | + * \fn int ifx_pcie_bios_plat_dev_init(struct pci_dev *dev) |
| 1612 | + * \brief Called to perform platform specific PCI setup |
| 1613 | + * |
| 1614 | + * \param[in] dev The Linux PCI device structure for the device to map |
| 1615 | + * \return OK |
| 1616 | + * \ingroup IFX_PCIE_OS |
| 1617 | + */ |
| 1618 | +int |
| 1619 | +ifx_pcie_bios_plat_dev_init(struct pci_dev *dev) |
| 1620 | +{ |
| 1621 | + u16 config; |
| 1622 | +#ifdef IFX_PCIE_ERROR_INT |
| 1623 | + u32 dconfig; |
| 1624 | + int pos; |
| 1625 | +#endif /* IFX_PCIE_ERROR_INT */ |
| 1626 | + |
| 1627 | + IFX_PCIE_PRINT(PCIE_MSG_INIT, "%s enter \n", __func__); |
| 1628 | + /* Enable reporting System errors and parity errors on all devices */ |
| 1629 | + /* Enable parity checking and error reporting */ |
| 1630 | + pci_read_config_word(dev, PCI_COMMAND, &config); |
| 1631 | + config |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR /*| PCI_COMMAND_INVALIDATE | |
| 1632 | + PCI_COMMAND_FAST_BACK*/; |
| 1633 | + pci_write_config_word(dev, PCI_COMMAND, config); |
| 1634 | + |
| 1635 | + if (dev->subordinate) { |
| 1636 | + /* Set latency timers on sub bridges */ |
| 1637 | + pci_write_config_byte(dev, PCI_SEC_LATENCY_TIMER, 0x40); /* XXX, */ |
| 1638 | + /* More bridge error detection */ |
| 1639 | + pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &config); |
| 1640 | + config |= PCI_BRIDGE_CTL_PARITY | PCI_BRIDGE_CTL_SERR; |
| 1641 | + pci_write_config_word(dev, PCI_BRIDGE_CONTROL, config); |
| 1642 | + } |
| 1643 | +#ifdef IFX_PCIE_ERROR_INT |
| 1644 | + /* Enable the PCIe normal error reporting */ |
| 1645 | + pos = pci_find_capability(dev, PCI_CAP_ID_EXP); |
| 1646 | + if (pos) { |
| 1647 | + |
| 1648 | + /* Disable system error generation in response to error messages */ |
| 1649 | + pci_read_config_word(dev, pos + PCI_EXP_RTCTL, &config); |
| 1650 | + config &= ~(PCI_EXP_RTCTL_SECEE | PCI_EXP_RTCTL_SENFEE | PCI_EXP_RTCTL_SEFEE); |
| 1651 | + pci_write_config_word(dev, pos + PCI_EXP_RTCTL, config); |
| 1652 | + |
| 1653 | + /* Clear PCIE Capability's Device Status */ |
| 1654 | + pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, &config); |
| 1655 | + pci_write_config_word(dev, pos + PCI_EXP_DEVSTA, config); |
| 1656 | + |
| 1657 | + /* Update Device Control */ |
| 1658 | + pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &config); |
| 1659 | + /* Correctable Error Reporting */ |
| 1660 | + config |= PCI_EXP_DEVCTL_CERE; |
| 1661 | + /* Non-Fatal Error Reporting */ |
| 1662 | + config |= PCI_EXP_DEVCTL_NFERE; |
| 1663 | + /* Fatal Error Reporting */ |
| 1664 | + config |= PCI_EXP_DEVCTL_FERE; |
| 1665 | + /* Unsupported Request */ |
| 1666 | + config |= PCI_EXP_DEVCTL_URRE; |
| 1667 | + pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, config); |
| 1668 | + } |
| 1669 | + |
| 1670 | + /* Find the Advanced Error Reporting capability */ |
| 1671 | + pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR); |
| 1672 | + if (pos) { |
| 1673 | + /* Clear Uncorrectable Error Status */ |
| 1674 | + pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &dconfig); |
| 1675 | + pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, dconfig); |
| 1676 | + /* Enable reporting of all uncorrectable errors */ |
| 1677 | + /* Uncorrectable Error Mask - turned on bits disable errors */ |
| 1678 | + pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_MASK, 0); |
| 1679 | + /* |
| 1680 | + * Leave severity at HW default. This only controls if |
| 1681 | + * errors are reported as uncorrectable or |
| 1682 | + * correctable, not if the error is reported. |
| 1683 | + */ |
| 1684 | + /* PCI_ERR_UNCOR_SEVER - Uncorrectable Error Severity */ |
| 1685 | + /* Clear Correctable Error Status */ |
| 1686 | + pci_read_config_dword(dev, pos + PCI_ERR_COR_STATUS, &dconfig); |
| 1687 | + pci_write_config_dword(dev, pos + PCI_ERR_COR_STATUS, dconfig); |
| 1688 | + /* Enable reporting of all correctable errors */ |
| 1689 | + /* Correctable Error Mask - turned on bits disable errors */ |
| 1690 | + pci_write_config_dword(dev, pos + PCI_ERR_COR_MASK, 0); |
| 1691 | + /* Advanced Error Capabilities */ |
| 1692 | + pci_read_config_dword(dev, pos + PCI_ERR_CAP, &dconfig); |
| 1693 | + /* ECRC Generation Enable */ |
| 1694 | + if (dconfig & PCI_ERR_CAP_ECRC_GENC) { |
| 1695 | + dconfig |= PCI_ERR_CAP_ECRC_GENE; |
| 1696 | + } |
| 1697 | + /* ECRC Check Enable */ |
| 1698 | + if (dconfig & PCI_ERR_CAP_ECRC_CHKC) { |
| 1699 | + dconfig |= PCI_ERR_CAP_ECRC_CHKE; |
| 1700 | + } |
| 1701 | + pci_write_config_dword(dev, pos + PCI_ERR_CAP, dconfig); |
| 1702 | + |
| 1703 | + /* PCI_ERR_HEADER_LOG - Header Log Register (16 bytes) */ |
| 1704 | + /* Enable Root Port's interrupt in response to error messages */ |
| 1705 | + pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, |
| 1706 | + PCI_ERR_ROOT_CMD_COR_EN | |
| 1707 | + PCI_ERR_ROOT_CMD_NONFATAL_EN | |
| 1708 | + PCI_ERR_ROOT_CMD_FATAL_EN); |
| 1709 | + /* Clear the Root status register */ |
| 1710 | + pci_read_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, &dconfig); |
| 1711 | + pci_write_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, dconfig); |
| 1712 | + } |
| 1713 | +#endif /* IFX_PCIE_ERROR_INT */ |
| 1714 | + /* WAR, only 128 MRRS is supported, force all EPs to support this value */ |
| 1715 | + pcie_set_readrq(dev, 128); |
| 1716 | + IFX_PCIE_PRINT(PCIE_MSG_INIT, "%s exit \n", __func__); |
| 1717 | + return 0; |
| 1718 | +} |
| 1719 | + |
| 1720 | +static void |
| 1721 | +pcie_phy_rst(int pcie_port) |
| 1722 | +{ |
| 1723 | + pcie_phy_rst_assert(pcie_port); |
| 1724 | + pcie_phy_rst_deassert(pcie_port); |
| 1725 | + |
| 1726 | + /* Make sure PHY PLL is stable */ |
| 1727 | + udelay(20); |
| 1728 | +} |
| 1729 | + |
| 1730 | +static int |
| 1731 | +pcie_rc_initialize(int pcie_port) |
| 1732 | +{ |
| 1733 | + int i; |
| 1734 | +#define IFX_PCIE_PHY_LOOP_CNT 5 |
| 1735 | + |
| 1736 | + pcie_rcu_endian_setup(pcie_port); |
| 1737 | + |
| 1738 | + pcie_ep_gpio_rst_init(pcie_port); |
| 1739 | + |
| 1740 | + /* |
| 1741 | + * XXX, PCIe elastic buffer bug will cause not to be detected. One more |
| 1742 | + * reset PCIe PHY will solve this issue |
| 1743 | + */ |
| 1744 | + for (i = 0; i < IFX_PCIE_PHY_LOOP_CNT; i++) { |
| 1745 | + /* Disable PCIe PHY Analog part for sanity check */ |
| 1746 | + pcie_phy_pmu_disable(pcie_port); |
| 1747 | + |
| 1748 | + pcie_phy_rst(pcie_port); |
| 1749 | + |
| 1750 | + /* PCIe Core reset enabled, low active, sw programmed */ |
| 1751 | + pcie_core_rst_assert(pcie_port); |
| 1752 | + |
| 1753 | + /* Put PCIe EP in reset status */ |
| 1754 | + pcie_device_rst_assert(pcie_port); |
| 1755 | + |
| 1756 | + /* PCI PHY & Core reset disabled, high active, sw programmed */ |
| 1757 | + pcie_core_rst_deassert(pcie_port); |
| 1758 | + |
| 1759 | + /* Already in a quiet state, program PLL, enable PHY, check ready bit */ |
| 1760 | + pcie_phy_clock_mode_setup(pcie_port); |
| 1761 | + |
| 1762 | + /* Enable PCIe PHY and Clock */ |
| 1763 | + pcie_core_pmu_setup(pcie_port); |
| 1764 | + |
| 1765 | + /* Clear status registers */ |
| 1766 | + pcie_status_register_clear(pcie_port); |
| 1767 | + |
| 1768 | + #ifdef CONFIG_PCI_MSI |
| 1769 | + pcie_msi_init(pcie_port); |
| 1770 | + #endif /* CONFIG_PCI_MSI */ |
| 1771 | + pcie_rc_cfg_reg_setup(pcie_port); |
| 1772 | + |
| 1773 | + /* Once link is up, break out */ |
| 1774 | + if (pcie_app_loigc_setup(pcie_port) == 0) { |
| 1775 | + break; |
| 1776 | + } |
| 1777 | + } |
| 1778 | + if (i >= IFX_PCIE_PHY_LOOP_CNT) { |
| 1779 | + printk(KERN_ERR "%s link up failed!!!!!\n", __func__); |
| 1780 | + return -EIO; |
| 1781 | + } |
| 1782 | + /* NB, don't increase ACK/NACK timer timeout value, which will cause a lot of COR errors */ |
| 1783 | + pcie_replay_time_update(pcie_port); |
| 1784 | +#ifdef IFX_PCIE_DBG |
| 1785 | + pcie_post_dump(pcie_port); |
| 1786 | + pcie_status_registers_dump(pcie_port); |
| 1787 | +#endif /* IFX_PCIE_DBG */ |
| 1788 | + return 0; |
| 1789 | +} |
| 1790 | + |
| 1791 | +static int inline |
| 1792 | +ifx_pcie_startup_port_nr(void) |
| 1793 | +{ |
| 1794 | + int pcie_port = IFX_PCIE_PORT0; |
| 1795 | + |
| 1796 | +#if defined (CONFIG_IFX_PCIE_1ST_CORE) && defined (CONFIG_IFX_PCIE_2ND_CORE) |
| 1797 | + pcie_port = IFX_PCIE_PORT0; |
| 1798 | +#elif defined (CONFIG_IFX_PCIE_1ST_CORE) |
| 1799 | + pcie_port = IFX_PCIE_PORT0; |
| 1800 | +#elif defined (CONFIG_IFX_PCIE_2ND_CORE) |
| 1801 | + pcie_port = IFX_PCIE_PORT1; |
| 1802 | +#else |
| 1803 | + #error "Please choose valid PCIe Core" |
| 1804 | +#endif |
| 1805 | + return pcie_port; |
| 1806 | +} |
| 1807 | + |
| 1808 | +/** |
| 1809 | + * \fn static int __init ifx_pcie_bios_init(void) |
| 1810 | + * \brief Initialize the IFX PCIe controllers |
| 1811 | + * |
| 1812 | + * \return -EIO PCIe PHY link is not up |
| 1813 | + * \return -ENOMEM Configuration/IO space failed to map |
| 1814 | + * \return 0 OK |
| 1815 | + * \ingroup IFX_PCIE_OS |
| 1816 | + */ |
| 1817 | +extern int (*ltq_pci_plat_arch_init)(struct pci_dev *dev); |
| 1818 | +extern int (*ltq_pci_map_irq)(const struct pci_dev *dev, u8 slot, u8 pin); |
| 1819 | + |
| 1820 | +static int __init |
| 1821 | +ifx_pcie_bios_init(void) |
| 1822 | +{ |
| 1823 | + char ver_str[128] = {0}; |
| 1824 | + void __iomem *io_map_base; |
| 1825 | + int pcie_port; |
| 1826 | + int startup_port; |
| 1827 | + |
| 1828 | + IFX_PCIE_PRINT(PCIE_MSG_INIT, "%s enter \n", __func__); |
| 1829 | + |
| 1830 | + ltq_pci_map_irq = ifx_pcie_bios_map_irq; |
| 1831 | + ltq_pci_plat_arch_init = ifx_pcie_bios_plat_dev_init; |
| 1832 | + |
| 1833 | + /* Enable AHB Master/ Slave */ |
| 1834 | + pcie_ahb_pmu_setup(); |
| 1835 | + |
| 1836 | + startup_port = ifx_pcie_startup_port_nr(); |
| 1837 | + |
| 1838 | + for (pcie_port = startup_port; pcie_port < IFX_PCIE_CORE_NR; pcie_port++){ |
| 1839 | + if (pcie_rc_initialize(pcie_port) == 0) { |
| 1840 | + IFX_PCIE_PRINT(PCIE_MSG_INIT, "%s: ifx_pcie_cfg_base 0x%p\n", |
| 1841 | + __func__, PCIE_CFG_PORT_TO_BASE(pcie_port)); |
| 1842 | + /* Otherwise, warning will pop up */ |
| 1843 | + io_map_base = ioremap(PCIE_IO_PHY_PORT_TO_BASE(pcie_port), PCIE_IO_SIZE); |
| 1844 | + if (io_map_base == NULL) { |
| 1845 | + IFX_PCIE_PRINT(PCIE_MSG_ERR, "%s io space ioremap failed\n", __func__); |
| 1846 | + return -ENOMEM; |
| 1847 | + } |
| 1848 | + ifx_pcie_controller[pcie_port].pcic.io_map_base = (unsigned long)io_map_base; |
| 1849 | + |
| 1850 | + register_pci_controller(&ifx_pcie_controller[pcie_port].pcic); |
| 1851 | + /* XXX, clear error status */ |
| 1852 | + |
| 1853 | + IFX_PCIE_PRINT(PCIE_MSG_INIT, "%s: mem_resource 0x%p, io_resource 0x%p\n", |
| 1854 | + __func__, &ifx_pcie_controller[pcie_port].pcic.mem_resource, |
| 1855 | + &ifx_pcie_controller[pcie_port].pcic.io_resource); |
| 1856 | + |
| 1857 | + #ifdef IFX_PCIE_ERROR_INT |
| 1858 | + pcie_rc_core_int_init(pcie_port); |
| 1859 | + #endif /* IFX_PCIE_ERROR_INT */ |
| 1860 | + } |
| 1861 | + } |
| 1862 | +#ifdef CONFIG_IFX_PMCU |
| 1863 | + ifx_pcie_pmcu_init(); |
| 1864 | +#endif /* CONFIG_IFX_PMCU */ |
| 1865 | + |
| 1866 | + sprintf(ver_str, "PCIe Root Complex %d.%d.%d", IFX_PCIE_VER_MAJOR, IFX_PCIE_VER_MID, IFX_PCIE_VER_MINOR); |
| 1867 | + printk(KERN_INFO "%s", ver_str); |
| 1868 | + return 0; |
| 1869 | +#undef IFX_PCIE_PHY_LOOP_CNT |
| 1870 | +} |
| 1871 | +arch_initcall(ifx_pcie_bios_init); |
| 1872 | + |
| 1873 | +MODULE_LICENSE("GPL"); |
| 1874 | +MODULE_AUTHOR("Chuanhua.Lei@infineon.com"); |
| 1875 | +MODULE_SUPPORTED_DEVICE("Infineon builtin PCIe RC module"); |
| 1876 | +MODULE_DESCRIPTION("Infineon builtin PCIe RC driver"); |
| 1877 | + |
| 1878 | diff --git a/arch/mips/pci/ifxmips_pcie.h b/arch/mips/pci/ifxmips_pcie.h |
| 1879 | new file mode 100644 |
| 1880 | index 0000000..49a4d2f |
| 1881 | --- /dev/null |
| 1882 | +++ b/arch/mips/pci/ifxmips_pcie.h |
| 1883 | @@ -0,0 +1,135 @@ |
| 1884 | +/****************************************************************************** |
| 1885 | +** |
| 1886 | +** FILE NAME : ifxmips_pcie.h |
| 1887 | +** PROJECT : IFX UEIP for VRX200 |
| 1888 | +** MODULES : PCIe module |
| 1889 | +** |
| 1890 | +** DATE : 02 Mar 2009 |
| 1891 | +** AUTHOR : Lei Chuanhua |
| 1892 | +** DESCRIPTION : PCIe Root Complex Driver |
| 1893 | +** COPYRIGHT : Copyright (c) 2009 |
| 1894 | +** Infineon Technologies AG |
| 1895 | +** Am Campeon 1-12, 85579 Neubiberg, Germany |
| 1896 | +** |
| 1897 | +** This program is free software; you can redistribute it and/or modify |
| 1898 | +** it under the terms of the GNU General Public License as published by |
| 1899 | +** the Free Software Foundation; either version 2 of the License, or |
| 1900 | +** (at your option) any later version. |
| 1901 | +** HISTORY |
| 1902 | +** $Version $Date $Author $Comment |
| 1903 | +** 0.0.1 17 Mar,2009 Lei Chuanhua Initial version |
| 1904 | +*******************************************************************************/ |
| 1905 | +#ifndef IFXMIPS_PCIE_H |
| 1906 | +#define IFXMIPS_PCIE_H |
| 1907 | +#include <linux/version.h> |
| 1908 | +#include <linux/types.h> |
| 1909 | +#include <linux/pci.h> |
| 1910 | +#include <linux/interrupt.h> |
| 1911 | +#include "ifxmips_pci_common.h" |
| 1912 | +#include "ifxmips_pcie_reg.h" |
| 1913 | + |
| 1914 | +/*! |
| 1915 | + \defgroup IFX_PCIE PCI Express bus driver module |
| 1916 | + \brief PCI Express IP module support VRX200 |
| 1917 | +*/ |
| 1918 | + |
| 1919 | +/*! |
| 1920 | + \defgroup IFX_PCIE_OS OS APIs |
| 1921 | + \ingroup IFX_PCIE |
| 1922 | + \brief PCIe bus driver OS interface functions |
| 1923 | +*/ |
| 1924 | + |
| 1925 | +/*! |
| 1926 | + \file ifxmips_pcie.h |
| 1927 | + \ingroup IFX_PCIE |
| 1928 | + \brief header file for PCIe module common header file |
| 1929 | +*/ |
| 1930 | +#define PCIE_IRQ_LOCK(lock) do { \ |
| 1931 | + unsigned long flags; \ |
| 1932 | + spin_lock_irqsave(&(lock), flags); |
| 1933 | +#define PCIE_IRQ_UNLOCK(lock) \ |
| 1934 | + spin_unlock_irqrestore(&(lock), flags); \ |
| 1935 | +} while (0) |
| 1936 | + |
| 1937 | +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18) |
| 1938 | +#define IRQF_SHARED SA_SHIRQ |
| 1939 | +#endif |
| 1940 | + |
| 1941 | +#define PCIE_MSG_MSI 0x00000001 |
| 1942 | +#define PCIE_MSG_ISR 0x00000002 |
| 1943 | +#define PCIE_MSG_FIXUP 0x00000004 |
| 1944 | +#define PCIE_MSG_READ_CFG 0x00000008 |
| 1945 | +#define PCIE_MSG_WRITE_CFG 0x00000010 |
| 1946 | +#define PCIE_MSG_CFG (PCIE_MSG_READ_CFG | PCIE_MSG_WRITE_CFG) |
| 1947 | +#define PCIE_MSG_REG 0x00000020 |
| 1948 | +#define PCIE_MSG_INIT 0x00000040 |
| 1949 | +#define PCIE_MSG_ERR 0x00000080 |
| 1950 | +#define PCIE_MSG_PHY 0x00000100 |
| 1951 | +#define PCIE_MSG_ANY 0x000001ff |
| 1952 | + |
| 1953 | +#define IFX_PCIE_PORT0 0 |
| 1954 | +#define IFX_PCIE_PORT1 1 |
| 1955 | + |
| 1956 | +#ifdef CONFIG_IFX_PCIE_2ND_CORE |
| 1957 | +#define IFX_PCIE_CORE_NR 2 |
| 1958 | +#else |
| 1959 | +#define IFX_PCIE_CORE_NR 1 |
| 1960 | +#endif |
| 1961 | + |
| 1962 | +#define IFX_PCIE_ERROR_INT |
| 1963 | + |
| 1964 | +//#define IFX_PCIE_DBG |
| 1965 | + |
| 1966 | +#if defined(IFX_PCIE_DBG) |
| 1967 | +#define IFX_PCIE_PRINT(_m, _fmt, args...) do { \ |
| 1968 | + ifx_pcie_debug((_fmt), ##args); \ |
| 1969 | +} while (0) |
| 1970 | + |
| 1971 | +#define INLINE |
| 1972 | +#else |
| 1973 | +#define IFX_PCIE_PRINT(_m, _fmt, args...) \ |
| 1974 | + do {} while(0) |
| 1975 | +#define INLINE inline |
| 1976 | +#endif |
| 1977 | + |
| 1978 | +struct ifx_pci_controller { |
| 1979 | + struct pci_controller pcic; |
| 1980 | + |
| 1981 | + /* RC specific, per host bus information */ |
| 1982 | + u32 port; /* Port index, 0 -- 1st core, 1 -- 2nd core */ |
| 1983 | +}; |
| 1984 | + |
| 1985 | +typedef struct ifx_pcie_ir_irq { |
| 1986 | + const unsigned int irq; |
| 1987 | + const char name[16]; |
| 1988 | +}ifx_pcie_ir_irq_t; |
| 1989 | + |
| 1990 | +typedef struct ifx_pcie_legacy_irq{ |
| 1991 | + const u32 irq_bit; |
| 1992 | + const int irq; |
| 1993 | +}ifx_pcie_legacy_irq_t; |
| 1994 | + |
| 1995 | +typedef struct ifx_pcie_irq { |
| 1996 | + ifx_pcie_ir_irq_t ir_irq; |
| 1997 | + ifx_pcie_legacy_irq_t legacy_irq[PCIE_LEGACY_INT_MAX]; |
| 1998 | +}ifx_pcie_irq_t; |
| 1999 | + |
| 2000 | +extern u32 g_pcie_debug_flag; |
| 2001 | +extern void ifx_pcie_debug(const char *fmt, ...); |
| 2002 | +extern void pcie_phy_clock_mode_setup(int pcie_port); |
| 2003 | +extern void pcie_msi_pic_init(int pcie_port); |
| 2004 | +extern u32 ifx_pcie_bus_enum_read_hack(int where, u32 value); |
| 2005 | +extern u32 ifx_pcie_bus_enum_write_hack(int where, u32 value); |
| 2006 | + |
| 2007 | +#define CONFIG_VR9 |
| 2008 | + |
| 2009 | +#ifdef CONFIG_VR9 |
| 2010 | +#include "ifxmips_pcie_vr9.h" |
| 2011 | +#elif defined (CONFIG_AR10) |
| 2012 | +#include "ifxmips_pcie_ar10.h" |
| 2013 | +#else |
| 2014 | +#error "PCIE: platform not defined" |
| 2015 | +#endif /* CONFIG_VR9 */ |
| 2016 | + |
| 2017 | +#endif /* IFXMIPS_PCIE_H */ |
| 2018 | + |
| 2019 | diff --git a/arch/mips/pci/ifxmips_pcie_ar10.h b/arch/mips/pci/ifxmips_pcie_ar10.h |
| 2020 | new file mode 100644 |
| 2021 | index 0000000..99ff463 |
| 2022 | --- /dev/null |
| 2023 | +++ b/arch/mips/pci/ifxmips_pcie_ar10.h |
| 2024 | @@ -0,0 +1,290 @@ |
| 2025 | +/**************************************************************************** |
| 2026 | + Copyright (c) 2010 |
| 2027 | + Lantiq Deutschland GmbH |
| 2028 | + Am Campeon 3; 85579 Neubiberg, Germany |
| 2029 | + |
| 2030 | + For licensing information, see the file 'LICENSE' in the root folder of |
| 2031 | + this software module. |
| 2032 | + |
| 2033 | + *****************************************************************************/ |
| 2034 | +/*! |
| 2035 | + \file ifxmips_pcie_ar10.h |
| 2036 | + \ingroup IFX_PCIE |
| 2037 | + \brief PCIe RC driver ar10 specific file |
| 2038 | +*/ |
| 2039 | + |
| 2040 | +#ifndef IFXMIPS_PCIE_AR10_H |
| 2041 | +#define IFXMIPS_PCIE_AR10_H |
| 2042 | +#ifndef AUTOCONF_INCLUDED |
| 2043 | +#include <linux/config.h> |
| 2044 | +#endif /* AUTOCONF_INCLUDED */ |
| 2045 | +#include <linux/types.h> |
| 2046 | +#include <linux/delay.h> |
| 2047 | + |
| 2048 | +/* Project header file */ |
| 2049 | +#include <asm/ifx/ifx_types.h> |
| 2050 | +#include <asm/ifx/ifx_pmu.h> |
| 2051 | +#include <asm/ifx/ifx_gpio.h> |
| 2052 | +#include <asm/ifx/ifx_ebu_led.h> |
| 2053 | + |
| 2054 | +static inline void pcie_ep_gpio_rst_init(int pcie_port) |
| 2055 | +{ |
| 2056 | + ifx_ebu_led_enable(); |
| 2057 | + if (pcie_port == 0) { |
| 2058 | + ifx_ebu_led_set_data(11, 1); |
| 2059 | + } |
| 2060 | + else { |
| 2061 | + ifx_ebu_led_set_data(12, 1); |
| 2062 | + } |
| 2063 | +} |
| 2064 | + |
| 2065 | +static inline void pcie_ahb_pmu_setup(void) |
| 2066 | +{ |
| 2067 | + /* XXX, moved to CGU to control AHBM */ |
| 2068 | +} |
| 2069 | + |
| 2070 | +static inline void pcie_rcu_endian_setup(int pcie_port) |
| 2071 | +{ |
| 2072 | + u32 reg; |
| 2073 | + |
| 2074 | + reg = IFX_REG_R32(IFX_RCU_AHB_ENDIAN); |
| 2075 | + /* Inbound, big endian */ |
| 2076 | + reg |= IFX_RCU_BE_AHB4S; |
| 2077 | + if (pcie_port == 0) { |
| 2078 | + reg |= IFX_RCU_BE_PCIE0M; |
| 2079 | + |
| 2080 | + #ifdef CONFIG_IFX_PCIE_HW_SWAP |
| 2081 | + /* Outbound, software swap needed */ |
| 2082 | + reg |= IFX_RCU_BE_AHB3M; |
| 2083 | + reg &= ~IFX_RCU_BE_PCIE0S; |
| 2084 | + #else |
| 2085 | + /* Outbound little endian */ |
| 2086 | + reg &= ~IFX_RCU_BE_AHB3M; |
| 2087 | + reg &= ~IFX_RCU_BE_PCIE0S; |
| 2088 | + #endif |
| 2089 | + } |
| 2090 | + else { |
| 2091 | + reg |= IFX_RCU_BE_PCIE1M; |
| 2092 | + #ifdef CONFIG_IFX_PCIE1_HW_SWAP |
| 2093 | + /* Outbound, software swap needed */ |
| 2094 | + reg |= IFX_RCU_BE_AHB3M; |
| 2095 | + reg &= ~IFX_RCU_BE_PCIE1S; |
| 2096 | + #else |
| 2097 | + /* Outbound little endian */ |
| 2098 | + reg &= ~IFX_RCU_BE_AHB3M; |
| 2099 | + reg &= ~IFX_RCU_BE_PCIE1S; |
| 2100 | + #endif |
| 2101 | + } |
| 2102 | + |
| 2103 | + IFX_REG_W32(reg, IFX_RCU_AHB_ENDIAN); |
| 2104 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s IFX_RCU_AHB_ENDIAN: 0x%08x\n", __func__, IFX_REG_R32(IFX_RCU_AHB_ENDIAN)); |
| 2105 | +} |
| 2106 | + |
| 2107 | +static inline void pcie_phy_pmu_enable(int pcie_port) |
| 2108 | +{ |
| 2109 | + if (pcie_port == 0) { /* XXX, should use macro*/ |
| 2110 | + PCIE0_PHY_PMU_SETUP(IFX_PMU_ENABLE); |
| 2111 | + } |
| 2112 | + else { |
| 2113 | + PCIE1_PHY_PMU_SETUP(IFX_PMU_ENABLE); |
| 2114 | + } |
| 2115 | +} |
| 2116 | + |
| 2117 | +static inline void pcie_phy_pmu_disable(int pcie_port) |
| 2118 | +{ |
| 2119 | + if (pcie_port == 0) { /* XXX, should use macro*/ |
| 2120 | + PCIE0_PHY_PMU_SETUP(IFX_PMU_DISABLE); |
| 2121 | + } |
| 2122 | + else { |
| 2123 | + PCIE1_PHY_PMU_SETUP(IFX_PMU_DISABLE); |
| 2124 | + } |
| 2125 | +} |
| 2126 | + |
| 2127 | +static inline void pcie_pdi_big_endian(int pcie_port) |
| 2128 | +{ |
| 2129 | + u32 reg; |
| 2130 | + |
| 2131 | + reg = IFX_REG_R32(IFX_RCU_AHB_ENDIAN); |
| 2132 | + if (pcie_port == 0) { |
| 2133 | + /* Config AHB->PCIe and PDI endianness */ |
| 2134 | + reg |= IFX_RCU_BE_PCIE0_PDI; |
| 2135 | + } |
| 2136 | + else { |
| 2137 | + /* Config AHB->PCIe and PDI endianness */ |
| 2138 | + reg |= IFX_RCU_BE_PCIE1_PDI; |
| 2139 | + } |
| 2140 | + IFX_REG_W32(reg, IFX_RCU_AHB_ENDIAN); |
| 2141 | +} |
| 2142 | + |
| 2143 | +static inline void pcie_pdi_pmu_enable(int pcie_port) |
| 2144 | +{ |
| 2145 | + if (pcie_port == 0) { |
| 2146 | + /* Enable PDI to access PCIe PHY register */ |
| 2147 | + PDI0_PMU_SETUP(IFX_PMU_ENABLE); |
| 2148 | + } |
| 2149 | + else { |
| 2150 | + PDI1_PMU_SETUP(IFX_PMU_ENABLE); |
| 2151 | + } |
| 2152 | +} |
| 2153 | + |
| 2154 | +static inline void pcie_core_rst_assert(int pcie_port) |
| 2155 | +{ |
| 2156 | + u32 reg; |
| 2157 | + |
| 2158 | + reg = IFX_REG_R32(IFX_RCU_RST_REQ); |
| 2159 | + |
| 2160 | + /* Reset Core, bit 22 */ |
| 2161 | + if (pcie_port == 0) { |
| 2162 | + reg |= 0x00400000; |
| 2163 | + } |
| 2164 | + else { |
| 2165 | + reg |= 0x08000000; /* Bit 27 */ |
| 2166 | + } |
| 2167 | + IFX_REG_W32(reg, IFX_RCU_RST_REQ); |
| 2168 | +} |
| 2169 | + |
| 2170 | +static inline void pcie_core_rst_deassert(int pcie_port) |
| 2171 | +{ |
| 2172 | + u32 reg; |
| 2173 | + |
| 2174 | + /* Make sure one micro-second delay */ |
| 2175 | + udelay(1); |
| 2176 | + |
| 2177 | + reg = IFX_REG_R32(IFX_RCU_RST_REQ); |
| 2178 | + if (pcie_port == 0) { |
| 2179 | + reg &= ~0x00400000; /* bit 22 */ |
| 2180 | + } |
| 2181 | + else { |
| 2182 | + reg &= ~0x08000000; /* Bit 27 */ |
| 2183 | + } |
| 2184 | + IFX_REG_W32(reg, IFX_RCU_RST_REQ); |
| 2185 | +} |
| 2186 | + |
| 2187 | +static inline void pcie_phy_rst_assert(int pcie_port) |
| 2188 | +{ |
| 2189 | + u32 reg; |
| 2190 | + |
| 2191 | + reg = IFX_REG_R32(IFX_RCU_RST_REQ); |
| 2192 | + if (pcie_port == 0) { |
| 2193 | + reg |= 0x00001000; /* Bit 12 */ |
| 2194 | + } |
| 2195 | + else { |
| 2196 | + reg |= 0x00002000; /* Bit 13 */ |
| 2197 | + } |
| 2198 | + IFX_REG_W32(reg, IFX_RCU_RST_REQ); |
| 2199 | +} |
| 2200 | + |
| 2201 | +static inline void pcie_phy_rst_deassert(int pcie_port) |
| 2202 | +{ |
| 2203 | + u32 reg; |
| 2204 | + |
| 2205 | + /* Make sure one micro-second delay */ |
| 2206 | + udelay(1); |
| 2207 | + |
| 2208 | + reg = IFX_REG_R32(IFX_RCU_RST_REQ); |
| 2209 | + if (pcie_port == 0) { |
| 2210 | + reg &= ~0x00001000; /* Bit 12 */ |
| 2211 | + } |
| 2212 | + else { |
| 2213 | + reg &= ~0x00002000; /* Bit 13 */ |
| 2214 | + } |
| 2215 | + IFX_REG_W32(reg, IFX_RCU_RST_REQ); |
| 2216 | +} |
| 2217 | + |
| 2218 | +static inline void pcie_device_rst_assert(int pcie_port) |
| 2219 | +{ |
| 2220 | + if (pcie_port == 0) { |
| 2221 | + ifx_ebu_led_set_data(11, 0); |
| 2222 | + } |
| 2223 | + else { |
| 2224 | + ifx_ebu_led_set_data(12, 0); |
| 2225 | + } |
| 2226 | +} |
| 2227 | + |
| 2228 | +static inline void pcie_device_rst_deassert(int pcie_port) |
| 2229 | +{ |
| 2230 | + mdelay(100); |
| 2231 | + if (pcie_port == 0) { |
| 2232 | + ifx_ebu_led_set_data(11, 1); |
| 2233 | + } |
| 2234 | + else { |
| 2235 | + ifx_ebu_led_set_data(12, 1); |
| 2236 | + } |
| 2237 | + ifx_ebu_led_disable(); |
| 2238 | +} |
| 2239 | + |
| 2240 | +static inline void pcie_core_pmu_setup(int pcie_port) |
| 2241 | +{ |
| 2242 | + if (pcie_port == 0) { |
| 2243 | + PCIE0_CTRL_PMU_SETUP(IFX_PMU_ENABLE); |
| 2244 | + } |
| 2245 | + else { |
| 2246 | + PCIE1_CTRL_PMU_SETUP(IFX_PMU_ENABLE); |
| 2247 | + } |
| 2248 | +} |
| 2249 | + |
| 2250 | +static inline void pcie_msi_init(int pcie_port) |
| 2251 | +{ |
| 2252 | + pcie_msi_pic_init(pcie_port); |
| 2253 | + if (pcie_port == 0) { |
| 2254 | + MSI0_PMU_SETUP(IFX_PMU_ENABLE); |
| 2255 | + } |
| 2256 | + else { |
| 2257 | + MSI1_PMU_SETUP(IFX_PMU_ENABLE); |
| 2258 | + } |
| 2259 | +} |
| 2260 | + |
| 2261 | +static inline u32 |
| 2262 | +ifx_pcie_bus_nr_deduct(u32 bus_number, int pcie_port) |
| 2263 | +{ |
| 2264 | + u32 tbus_number = bus_number; |
| 2265 | + |
| 2266 | +#ifdef CONFIG_IFX_PCIE_2ND_CORE |
| 2267 | + if (pcie_port == IFX_PCIE_PORT1) { /* Port 1 must check if there are two cores enabled */ |
| 2268 | + if (pcibios_host_nr() > 1) { |
| 2269 | + tbus_number -= pcibios_1st_host_bus_nr(); |
| 2270 | + } |
| 2271 | + } |
| 2272 | +#endif /* CONFIG_IFX_PCI */ |
| 2273 | + return tbus_number; |
| 2274 | +} |
| 2275 | + |
| 2276 | +static inline u32 |
| 2277 | +ifx_pcie_bus_enum_hack(struct pci_bus *bus, u32 devfn, int where, u32 value, int pcie_port, int read) |
| 2278 | +{ |
| 2279 | + struct pci_dev *pdev; |
| 2280 | + u32 tvalue = value; |
| 2281 | + |
| 2282 | + /* Sanity check */ |
| 2283 | + pdev = pci_get_slot(bus, devfn); |
| 2284 | + if (pdev == NULL) { |
| 2285 | + return tvalue; |
| 2286 | + } |
| 2287 | + |
| 2288 | + /* Only care about PCI bridge */ |
| 2289 | + if (pdev->hdr_type != PCI_HEADER_TYPE_BRIDGE) { |
| 2290 | + return tvalue; |
| 2291 | + } |
| 2292 | + |
| 2293 | + if (read) { /* Read hack */ |
| 2294 | + #ifdef CONFIG_IFX_PCIE_2ND_CORE |
| 2295 | + if (pcie_port == IFX_PCIE_PORT1) { /* Port 1 must check if there are two cores enabled */ |
| 2296 | + if (pcibios_host_nr() > 1) { |
| 2297 | + tvalue = ifx_pcie_bus_enum_read_hack(where, tvalue); |
| 2298 | + } |
| 2299 | + } |
| 2300 | + #endif /* CONFIG_IFX_PCIE_2ND_CORE */ |
| 2301 | + } |
| 2302 | + else { /* Write hack */ |
| 2303 | + #ifdef CONFIG_IFX_PCIE_2ND_CORE |
| 2304 | + if (pcie_port == IFX_PCIE_PORT1) { /* Port 1 must check if there are two cores enabled */ |
| 2305 | + if (pcibios_host_nr() > 1) { |
| 2306 | + tvalue = ifx_pcie_bus_enum_write_hack(where, tvalue); |
| 2307 | + } |
| 2308 | + } |
| 2309 | + #endif |
| 2310 | + } |
| 2311 | + return tvalue; |
| 2312 | +} |
| 2313 | + |
| 2314 | +#endif /* IFXMIPS_PCIE_AR10_H */ |
| 2315 | diff --git a/arch/mips/pci/ifxmips_pcie_msi.c b/arch/mips/pci/ifxmips_pcie_msi.c |
| 2316 | new file mode 100644 |
| 2317 | index 0000000..5bee7f8 |
| 2318 | --- /dev/null |
| 2319 | +++ b/arch/mips/pci/ifxmips_pcie_msi.c |
| 2320 | @@ -0,0 +1,392 @@ |
| 2321 | +/****************************************************************************** |
| 2322 | +** |
| 2323 | +** FILE NAME : ifxmips_pcie_msi.c |
| 2324 | +** PROJECT : IFX UEIP for VRX200 |
| 2325 | +** MODULES : PCI MSI sub module |
| 2326 | +** |
| 2327 | +** DATE : 02 Mar 2009 |
| 2328 | +** AUTHOR : Lei Chuanhua |
| 2329 | +** DESCRIPTION : PCIe MSI Driver |
| 2330 | +** COPYRIGHT : Copyright (c) 2009 |
| 2331 | +** Infineon Technologies AG |
| 2332 | +** Am Campeon 1-12, 85579 Neubiberg, Germany |
| 2333 | +** |
| 2334 | +** This program is free software; you can redistribute it and/or modify |
| 2335 | +** it under the terms of the GNU General Public License as published by |
| 2336 | +** the Free Software Foundation; either version 2 of the License, or |
| 2337 | +** (at your option) any later version. |
| 2338 | +** HISTORY |
| 2339 | +** $Date $Author $Comment |
| 2340 | +** 02 Mar,2009 Lei Chuanhua Initial version |
| 2341 | +*******************************************************************************/ |
| 2342 | +/*! |
| 2343 | + \defgroup IFX_PCIE_MSI MSI OS APIs |
| 2344 | + \ingroup IFX_PCIE |
| 2345 | + \brief PCIe bus driver OS interface functions |
| 2346 | +*/ |
| 2347 | + |
| 2348 | +/*! |
| 2349 | + \file ifxmips_pcie_msi.c |
| 2350 | + \ingroup IFX_PCIE |
| 2351 | + \brief PCIe MSI OS interface file |
| 2352 | +*/ |
| 2353 | + |
| 2354 | +#ifndef AUTOCONF_INCLUDED |
| 2355 | +#include <linux/config.h> |
| 2356 | +#endif /* AUTOCONF_INCLUDED */ |
| 2357 | +#include <linux/init.h> |
| 2358 | +#include <linux/sched.h> |
| 2359 | +#include <linux/slab.h> |
| 2360 | +#include <linux/interrupt.h> |
| 2361 | +#include <linux/kernel_stat.h> |
| 2362 | +#include <linux/pci.h> |
| 2363 | +#include <linux/msi.h> |
| 2364 | +#include <linux/module.h> |
| 2365 | +#include <asm/bootinfo.h> |
| 2366 | +#include <asm/irq.h> |
| 2367 | +#include <asm/traps.h> |
| 2368 | + |
| 2369 | +#include <asm/ifx/ifx_types.h> |
| 2370 | +#include <asm/ifx/ifx_regs.h> |
| 2371 | +#include <asm/ifx/common_routines.h> |
| 2372 | +#include <asm/ifx/irq.h> |
| 2373 | + |
| 2374 | +#include "ifxmips_pcie_reg.h" |
| 2375 | +#include "ifxmips_pcie.h" |
| 2376 | + |
| 2377 | +#define IFX_MSI_IRQ_NUM 16 |
| 2378 | + |
| 2379 | +enum { |
| 2380 | + IFX_PCIE_MSI_IDX0 = 0, |
| 2381 | + IFX_PCIE_MSI_IDX1, |
| 2382 | + IFX_PCIE_MSI_IDX2, |
| 2383 | + IFX_PCIE_MSI_IDX3, |
| 2384 | +}; |
| 2385 | + |
| 2386 | +typedef struct ifx_msi_irq_idx { |
| 2387 | + const int irq; |
| 2388 | + const int idx; |
| 2389 | +}ifx_msi_irq_idx_t; |
| 2390 | + |
| 2391 | +struct ifx_msi_pic { |
| 2392 | + volatile u32 pic_table[IFX_MSI_IRQ_NUM]; |
| 2393 | + volatile u32 pic_endian; /* 0x40 */ |
| 2394 | +}; |
| 2395 | +typedef struct ifx_msi_pic *ifx_msi_pic_t; |
| 2396 | + |
| 2397 | +typedef struct ifx_msi_irq { |
| 2398 | + const volatile ifx_msi_pic_t msi_pic_p; |
| 2399 | + const u32 msi_phy_base; |
| 2400 | + const ifx_msi_irq_idx_t msi_irq_idx[IFX_MSI_IRQ_NUM]; |
| 2401 | + /* |
| 2402 | + * Each bit in msi_free_irq_bitmask represents a MSI interrupt that is |
| 2403 | + * in use. |
| 2404 | + */ |
| 2405 | + u16 msi_free_irq_bitmask; |
| 2406 | + |
| 2407 | + /* |
| 2408 | + * Each bit in msi_multiple_irq_bitmask tells that the device using |
| 2409 | + * this bit in msi_free_irq_bitmask is also using the next bit. This |
| 2410 | + * is used so we can disable all of the MSI interrupts when a device |
| 2411 | + * uses multiple. |
| 2412 | + */ |
| 2413 | + u16 msi_multiple_irq_bitmask; |
| 2414 | +}ifx_msi_irq_t; |
| 2415 | + |
| 2416 | +static ifx_msi_irq_t msi_irqs[IFX_PCIE_CORE_NR] = { |
| 2417 | + { |
| 2418 | + .msi_pic_p = (const volatile ifx_msi_pic_t)IFX_MSI_PIC_REG_BASE, |
| 2419 | + .msi_phy_base = PCIE_MSI_PHY_BASE, |
| 2420 | + .msi_irq_idx = { |
| 2421 | + {IFX_PCIE_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE_MSI_IR1, IFX_PCIE_MSI_IDX1}, |
| 2422 | + {IFX_PCIE_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE_MSI_IR3, IFX_PCIE_MSI_IDX3}, |
| 2423 | + {IFX_PCIE_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE_MSI_IR1, IFX_PCIE_MSI_IDX1}, |
| 2424 | + {IFX_PCIE_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE_MSI_IR3, IFX_PCIE_MSI_IDX3}, |
| 2425 | + {IFX_PCIE_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE_MSI_IR1, IFX_PCIE_MSI_IDX1}, |
| 2426 | + {IFX_PCIE_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE_MSI_IR3, IFX_PCIE_MSI_IDX3}, |
| 2427 | + {IFX_PCIE_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE_MSI_IR1, IFX_PCIE_MSI_IDX1}, |
| 2428 | + {IFX_PCIE_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE_MSI_IR3, IFX_PCIE_MSI_IDX3}, |
| 2429 | + }, |
| 2430 | + .msi_free_irq_bitmask = 0, |
| 2431 | + .msi_multiple_irq_bitmask= 0, |
| 2432 | + }, |
| 2433 | +#ifdef CONFIG_IFX_PCIE_2ND_CORE |
| 2434 | + { |
| 2435 | + .msi_pic_p = (const volatile ifx_msi_pic_t)IFX_MSI1_PIC_REG_BASE, |
| 2436 | + .msi_phy_base = PCIE1_MSI_PHY_BASE, |
| 2437 | + .msi_irq_idx = { |
| 2438 | + {IFX_PCIE1_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE1_MSI_IR1, IFX_PCIE_MSI_IDX1}, |
| 2439 | + {IFX_PCIE1_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE1_MSI_IR3, IFX_PCIE_MSI_IDX3}, |
| 2440 | + {IFX_PCIE1_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE1_MSI_IR1, IFX_PCIE_MSI_IDX1}, |
| 2441 | + {IFX_PCIE1_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE1_MSI_IR3, IFX_PCIE_MSI_IDX3}, |
| 2442 | + {IFX_PCIE1_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE1_MSI_IR1, IFX_PCIE_MSI_IDX1}, |
| 2443 | + {IFX_PCIE1_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE1_MSI_IR3, IFX_PCIE_MSI_IDX3}, |
| 2444 | + {IFX_PCIE1_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE1_MSI_IR1, IFX_PCIE_MSI_IDX1}, |
| 2445 | + {IFX_PCIE1_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE1_MSI_IR3, IFX_PCIE_MSI_IDX3}, |
| 2446 | + }, |
| 2447 | + .msi_free_irq_bitmask = 0, |
| 2448 | + .msi_multiple_irq_bitmask= 0, |
| 2449 | + |
| 2450 | + }, |
| 2451 | +#endif /* CONFIG_IFX_PCIE_2ND_CORE */ |
| 2452 | +}; |
| 2453 | + |
| 2454 | +/* |
| 2455 | + * This lock controls updates to msi_free_irq_bitmask, |
| 2456 | + * msi_multiple_irq_bitmask and pic register settting |
| 2457 | + */ |
| 2458 | +static DEFINE_SPINLOCK(ifx_pcie_msi_lock); |
| 2459 | + |
| 2460 | +void pcie_msi_pic_init(int pcie_port) |
| 2461 | +{ |
| 2462 | + spin_lock(&ifx_pcie_msi_lock); |
| 2463 | + msi_irqs[pcie_port].msi_pic_p->pic_endian = IFX_MSI_PIC_BIG_ENDIAN; |
| 2464 | + spin_unlock(&ifx_pcie_msi_lock); |
| 2465 | +} |
| 2466 | + |
| 2467 | +/** |
| 2468 | + * \fn int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc) |
| 2469 | + * \brief Called when a driver request MSI interrupts instead of the |
| 2470 | + * legacy INT A-D. This routine will allocate multiple interrupts |
| 2471 | + * for MSI devices that support them. A device can override this by |
| 2472 | + * programming the MSI control bits [6:4] before calling |
| 2473 | + * pci_enable_msi(). |
| 2474 | + * |
| 2475 | + * \param[in] pdev Device requesting MSI interrupts |
| 2476 | + * \param[in] desc MSI descriptor |
| 2477 | + * |
| 2478 | + * \return -EINVAL Invalid pcie root port or invalid msi bit |
| 2479 | + * \return 0 OK |
| 2480 | + * \ingroup IFX_PCIE_MSI |
| 2481 | + */ |
| 2482 | +int |
| 2483 | +arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc) |
| 2484 | +{ |
| 2485 | + int irq, pos; |
| 2486 | + u16 control; |
| 2487 | + int irq_idx; |
| 2488 | + int irq_step; |
| 2489 | + int configured_private_bits; |
| 2490 | + int request_private_bits; |
| 2491 | + struct msi_msg msg; |
| 2492 | + u16 search_mask; |
| 2493 | + struct ifx_pci_controller *ctrl = pdev->bus->sysdata; |
| 2494 | + int pcie_port = ctrl->port; |
| 2495 | + |
| 2496 | + IFX_PCIE_PRINT(PCIE_MSG_MSI, "%s %s enter\n", __func__, pci_name(pdev)); |
| 2497 | + |
| 2498 | + /* XXX, skip RC MSI itself */ |
| 2499 | + if (pdev->pcie_type == PCI_EXP_TYPE_ROOT_PORT) { |
| 2500 | + IFX_PCIE_PRINT(PCIE_MSG_MSI, "%s RC itself doesn't use MSI interrupt\n", __func__); |
| 2501 | + return -EINVAL; |
| 2502 | + } |
| 2503 | + |
| 2504 | + /* |
| 2505 | + * Read the MSI config to figure out how many IRQs this device |
| 2506 | + * wants. Most devices only want 1, which will give |
| 2507 | + * configured_private_bits and request_private_bits equal 0. |
| 2508 | + */ |
| 2509 | + pci_read_config_word(pdev, desc->msi_attrib.pos + PCI_MSI_FLAGS, &control); |
| 2510 | + |
| 2511 | + /* |
| 2512 | + * If the number of private bits has been configured then use |
| 2513 | + * that value instead of the requested number. This gives the |
| 2514 | + * driver the chance to override the number of interrupts |
| 2515 | + * before calling pci_enable_msi(). |
| 2516 | + */ |
| 2517 | + configured_private_bits = (control & PCI_MSI_FLAGS_QSIZE) >> 4; |
| 2518 | + if (configured_private_bits == 0) { |
| 2519 | + /* Nothing is configured, so use the hardware requested size */ |
| 2520 | + request_private_bits = (control & PCI_MSI_FLAGS_QMASK) >> 1; |
| 2521 | + } |
| 2522 | + else { |
| 2523 | + /* |
| 2524 | + * Use the number of configured bits, assuming the |
| 2525 | + * driver wanted to override the hardware request |
| 2526 | + * value. |
| 2527 | + */ |
| 2528 | + request_private_bits = configured_private_bits; |
| 2529 | + } |
| 2530 | + |
| 2531 | + /* |
| 2532 | + * The PCI 2.3 spec mandates that there are at most 32 |
| 2533 | + * interrupts. If this device asks for more, only give it one. |
| 2534 | + */ |
| 2535 | + if (request_private_bits > 5) { |
| 2536 | + request_private_bits = 0; |
| 2537 | + } |
| 2538 | +again: |
| 2539 | + /* |
| 2540 | + * The IRQs have to be aligned on a power of two based on the |
| 2541 | + * number being requested. |
| 2542 | + */ |
| 2543 | + irq_step = (1 << request_private_bits); |
| 2544 | + |
| 2545 | + /* Mask with one bit for each IRQ */ |
| 2546 | + search_mask = (1 << irq_step) - 1; |
| 2547 | + |
| 2548 | + /* |
| 2549 | + * We're going to search msi_free_irq_bitmask_lock for zero |
| 2550 | + * bits. This represents an MSI interrupt number that isn't in |
| 2551 | + * use. |
| 2552 | + */ |
| 2553 | + spin_lock(&ifx_pcie_msi_lock); |
| 2554 | + for (pos = 0; pos < IFX_MSI_IRQ_NUM; pos += irq_step) { |
| 2555 | + if ((msi_irqs[pcie_port].msi_free_irq_bitmask & (search_mask << pos)) == 0) { |
| 2556 | + msi_irqs[pcie_port].msi_free_irq_bitmask |= search_mask << pos; |
| 2557 | + msi_irqs[pcie_port].msi_multiple_irq_bitmask |= (search_mask >> 1) << pos; |
| 2558 | + break; |
| 2559 | + } |
| 2560 | + } |
| 2561 | + spin_unlock(&ifx_pcie_msi_lock); |
| 2562 | + |
| 2563 | + /* Make sure the search for available interrupts didn't fail */ |
| 2564 | + if (pos >= IFX_MSI_IRQ_NUM) { |
| 2565 | + if (request_private_bits) { |
| 2566 | + IFX_PCIE_PRINT(PCIE_MSG_MSI, "%s: Unable to find %d free " |
| 2567 | + "interrupts, trying just one", __func__, 1 << request_private_bits); |
| 2568 | + request_private_bits = 0; |
| 2569 | + goto again; |
| 2570 | + } |
| 2571 | + else { |
| 2572 | + printk(KERN_ERR "%s: Unable to find a free MSI interrupt\n", __func__); |
| 2573 | + return -EINVAL; |
| 2574 | + } |
| 2575 | + } |
| 2576 | + irq = msi_irqs[pcie_port].msi_irq_idx[pos].irq; |
| 2577 | + irq_idx = msi_irqs[pcie_port].msi_irq_idx[pos].idx; |
| 2578 | + |
| 2579 | + IFX_PCIE_PRINT(PCIE_MSG_MSI, "pos %d, irq %d irq_idx %d\n", pos, irq, irq_idx); |
| 2580 | + |
| 2581 | + /* |
| 2582 | + * Initialize MSI. This has to match the memory-write endianess from the device |
| 2583 | + * Address bits [23:12] |
| 2584 | + */ |
| 2585 | + spin_lock(&ifx_pcie_msi_lock); |
| 2586 | + msi_irqs[pcie_port].msi_pic_p->pic_table[pos] = SM(irq_idx, IFX_MSI_PIC_INT_LINE) | |
| 2587 | + SM((msi_irqs[pcie_port].msi_phy_base >> 12), IFX_MSI_PIC_MSG_ADDR) | |
| 2588 | + SM((1 << pos), IFX_MSI_PIC_MSG_DATA); |
| 2589 | + |
| 2590 | + /* Enable this entry */ |
| 2591 | + msi_irqs[pcie_port].msi_pic_p->pic_table[pos] &= ~IFX_MSI_PCI_INT_DISABLE; |
| 2592 | + spin_unlock(&ifx_pcie_msi_lock); |
| 2593 | + |
| 2594 | + IFX_PCIE_PRINT(PCIE_MSG_MSI, "pic_table[%d]: 0x%08x\n", |
| 2595 | + pos, msi_irqs[pcie_port].msi_pic_p->pic_table[pos]); |
| 2596 | + |
| 2597 | + /* Update the number of IRQs the device has available to it */ |
| 2598 | + control &= ~PCI_MSI_FLAGS_QSIZE; |
| 2599 | + control |= (request_private_bits << 4); |
| 2600 | + pci_write_config_word(pdev, desc->msi_attrib.pos + PCI_MSI_FLAGS, control); |
| 2601 | + |
| 2602 | + set_irq_msi(irq, desc); |
| 2603 | + msg.address_hi = 0x0; |
| 2604 | + msg.address_lo = msi_irqs[pcie_port].msi_phy_base; |
| 2605 | + msg.data = SM((1 << pos), IFX_MSI_PIC_MSG_DATA); |
| 2606 | + IFX_PCIE_PRINT(PCIE_MSG_MSI, "msi_data: pos %d 0x%08x\n", pos, msg.data); |
| 2607 | + |
| 2608 | + write_msi_msg(irq, &msg); |
| 2609 | + IFX_PCIE_PRINT(PCIE_MSG_MSI, "%s exit\n", __func__); |
| 2610 | + return 0; |
| 2611 | +} |
| 2612 | + |
| 2613 | +static int |
| 2614 | +pcie_msi_irq_to_port(unsigned int irq, int *port) |
| 2615 | +{ |
| 2616 | + int ret = 0; |
| 2617 | + |
| 2618 | + if (irq == IFX_PCIE_MSI_IR0 || irq == IFX_PCIE_MSI_IR1 || |
| 2619 | + irq == IFX_PCIE_MSI_IR2 || irq == IFX_PCIE_MSI_IR3) { |
| 2620 | + *port = IFX_PCIE_PORT0; |
| 2621 | + } |
| 2622 | +#ifdef CONFIG_IFX_PCIE_2ND_CORE |
| 2623 | + else if (irq == IFX_PCIE1_MSI_IR0 || irq == IFX_PCIE1_MSI_IR1 || |
| 2624 | + irq == IFX_PCIE1_MSI_IR2 || irq == IFX_PCIE1_MSI_IR3) { |
| 2625 | + *port = IFX_PCIE_PORT1; |
| 2626 | + } |
| 2627 | +#endif /* CONFIG_IFX_PCIE_2ND_CORE */ |
| 2628 | + else { |
| 2629 | + printk(KERN_ERR "%s: Attempted to teardown illegal " |
| 2630 | + "MSI interrupt (%d)\n", __func__, irq); |
| 2631 | + ret = -EINVAL; |
| 2632 | + } |
| 2633 | + return ret; |
| 2634 | +} |
| 2635 | + |
| 2636 | +/** |
| 2637 | + * \fn void arch_teardown_msi_irq(unsigned int irq) |
| 2638 | + * \brief Called when a device no longer needs its MSI interrupts. All |
| 2639 | + * MSI interrupts for the device are freed. |
| 2640 | + * |
| 2641 | + * \param irq The devices first irq number. There may be multple in sequence. |
| 2642 | + * \return none |
| 2643 | + * \ingroup IFX_PCIE_MSI |
| 2644 | + */ |
| 2645 | +void |
| 2646 | +arch_teardown_msi_irq(unsigned int irq) |
| 2647 | +{ |
| 2648 | + int pos; |
| 2649 | + int number_irqs; |
| 2650 | + u16 bitmask; |
| 2651 | + int pcie_port; |
| 2652 | + |
| 2653 | + IFX_PCIE_PRINT(PCIE_MSG_MSI, "%s enter\n", __func__); |
| 2654 | + |
| 2655 | + BUG_ON(irq > INT_NUM_IM4_IRL31); |
| 2656 | + |
| 2657 | + if (pcie_msi_irq_to_port(irq, &pcie_port) != 0) { |
| 2658 | + return; |
| 2659 | + } |
| 2660 | + |
| 2661 | + /* Shift the mask to the correct bit location, not always correct |
| 2662 | + * Probally, the first match will be chosen. |
| 2663 | + */ |
| 2664 | + for (pos = 0; pos < IFX_MSI_IRQ_NUM; pos++) { |
| 2665 | + if ((msi_irqs[pcie_port].msi_irq_idx[pos].irq == irq) |
| 2666 | + && (msi_irqs[pcie_port].msi_free_irq_bitmask & ( 1 << pos))) { |
| 2667 | + break; |
| 2668 | + } |
| 2669 | + } |
| 2670 | + if (pos >= IFX_MSI_IRQ_NUM) { |
| 2671 | + printk(KERN_ERR "%s: Unable to find a matched MSI interrupt\n", __func__); |
| 2672 | + return; |
| 2673 | + } |
| 2674 | + spin_lock(&ifx_pcie_msi_lock); |
| 2675 | + /* Disable this entry */ |
| 2676 | + msi_irqs[pcie_port].msi_pic_p->pic_table[pos] |= IFX_MSI_PCI_INT_DISABLE; |
| 2677 | + msi_irqs[pcie_port].msi_pic_p->pic_table[pos] &= ~(IFX_MSI_PIC_INT_LINE | IFX_MSI_PIC_MSG_ADDR | IFX_MSI_PIC_MSG_DATA); |
| 2678 | + spin_unlock(&ifx_pcie_msi_lock); |
| 2679 | + /* |
| 2680 | + * Count the number of IRQs we need to free by looking at the |
| 2681 | + * msi_multiple_irq_bitmask. Each bit set means that the next |
| 2682 | + * IRQ is also owned by this device. |
| 2683 | + */ |
| 2684 | + number_irqs = 0; |
| 2685 | + while (((pos + number_irqs) < IFX_MSI_IRQ_NUM) && |
| 2686 | + (msi_irqs[pcie_port].msi_multiple_irq_bitmask & (1 << (pos + number_irqs)))) { |
| 2687 | + number_irqs++; |
| 2688 | + } |
| 2689 | + number_irqs++; |
| 2690 | + |
| 2691 | + /* Mask with one bit for each IRQ */ |
| 2692 | + bitmask = (1 << number_irqs) - 1; |
| 2693 | + |
| 2694 | + bitmask <<= pos; |
| 2695 | + if ((msi_irqs[pcie_port].msi_free_irq_bitmask & bitmask) != bitmask) { |
| 2696 | + printk(KERN_ERR "%s: Attempted to teardown MSI " |
| 2697 | + "interrupt (%d) not in use\n", __func__, irq); |
| 2698 | + return; |
| 2699 | + } |
| 2700 | + /* Checks are done, update the in use bitmask */ |
| 2701 | + spin_lock(&ifx_pcie_msi_lock); |
| 2702 | + msi_irqs[pcie_port].msi_free_irq_bitmask &= ~bitmask; |
| 2703 | + msi_irqs[pcie_port].msi_multiple_irq_bitmask &= ~(bitmask >> 1); |
| 2704 | + spin_unlock(&ifx_pcie_msi_lock); |
| 2705 | + IFX_PCIE_PRINT(PCIE_MSG_MSI, "%s exit\n", __func__); |
| 2706 | +} |
| 2707 | + |
| 2708 | +MODULE_LICENSE("GPL"); |
| 2709 | +MODULE_AUTHOR("Chuanhua.Lei@infineon.com"); |
| 2710 | +MODULE_SUPPORTED_DEVICE("Infineon PCIe IP builtin MSI PIC module"); |
| 2711 | +MODULE_DESCRIPTION("Infineon PCIe IP builtin MSI PIC driver"); |
| 2712 | + |
| 2713 | diff --git a/arch/mips/pci/ifxmips_pcie_phy.c b/arch/mips/pci/ifxmips_pcie_phy.c |
| 2714 | new file mode 100644 |
| 2715 | index 0000000..a4171a7 |
| 2716 | --- /dev/null |
| 2717 | +++ b/arch/mips/pci/ifxmips_pcie_phy.c |
| 2718 | @@ -0,0 +1,478 @@ |
| 2719 | +/****************************************************************************** |
| 2720 | +** |
| 2721 | +** FILE NAME : ifxmips_pcie_phy.c |
| 2722 | +** PROJECT : IFX UEIP for VRX200 |
| 2723 | +** MODULES : PCIe PHY sub module |
| 2724 | +** |
| 2725 | +** DATE : 14 May 2009 |
| 2726 | +** AUTHOR : Lei Chuanhua |
| 2727 | +** DESCRIPTION : PCIe Root Complex Driver |
| 2728 | +** COPYRIGHT : Copyright (c) 2009 |
| 2729 | +** Infineon Technologies AG |
| 2730 | +** Am Campeon 1-12, 85579 Neubiberg, Germany |
| 2731 | +** |
| 2732 | +** This program is free software; you can redistribute it and/or modify |
| 2733 | +** it under the terms of the GNU General Public License as published by |
| 2734 | +** the Free Software Foundation; either version 2 of the License, or |
| 2735 | +** (at your option) any later version. |
| 2736 | +** HISTORY |
| 2737 | +** $Version $Date $Author $Comment |
| 2738 | +** 0.0.1 14 May,2009 Lei Chuanhua Initial version |
| 2739 | +*******************************************************************************/ |
| 2740 | +/*! |
| 2741 | + \file ifxmips_pcie_phy.c |
| 2742 | + \ingroup IFX_PCIE |
| 2743 | + \brief PCIe PHY PLL register programming source file |
| 2744 | +*/ |
| 2745 | +#include <linux/types.h> |
| 2746 | +#include <linux/kernel.h> |
| 2747 | +#include <asm/paccess.h> |
| 2748 | +#include <linux/delay.h> |
| 2749 | + |
| 2750 | +#include "ifxmips_pcie_reg.h" |
| 2751 | +#include "ifxmips_pcie.h" |
| 2752 | + |
| 2753 | +/* PCIe PDI only supports 16 bit operation */ |
| 2754 | + |
| 2755 | +#define IFX_PCIE_PHY_REG_WRITE16(__addr, __data) \ |
| 2756 | + ((*(volatile u16 *) (__addr)) = (__data)) |
| 2757 | + |
| 2758 | +#define IFX_PCIE_PHY_REG_READ16(__addr) \ |
| 2759 | + (*(volatile u16 *) (__addr)) |
| 2760 | + |
| 2761 | +#define IFX_PCIE_PHY_REG16(__addr) \ |
| 2762 | + (*(volatile u16 *) (__addr)) |
| 2763 | + |
| 2764 | +#define IFX_PCIE_PHY_REG(__reg, __value, __mask) do { \ |
| 2765 | + u16 read_data; \ |
| 2766 | + u16 write_data; \ |
| 2767 | + read_data = IFX_PCIE_PHY_REG_READ16((__reg)); \ |
| 2768 | + write_data = (read_data & ((u16)~(__mask))) | (((u16)(__value)) & ((u16)(__mask)));\ |
| 2769 | + IFX_PCIE_PHY_REG_WRITE16((__reg), write_data); \ |
| 2770 | +} while (0) |
| 2771 | + |
| 2772 | +#define IFX_PCIE_PLL_TIMEOUT 1000 /* Tunnable */ |
| 2773 | + |
| 2774 | +//#define IFX_PCI_PHY_REG_DUMP |
| 2775 | + |
| 2776 | +#ifdef IFX_PCI_PHY_REG_DUMP |
| 2777 | +static void |
| 2778 | +pcie_phy_reg_dump(int pcie_port) |
| 2779 | +{ |
| 2780 | + printk("PLL REGFILE\n"); |
| 2781 | + printk("PCIE_PHY_PLL_CTRL1 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_PLL_CTRL1(pcie_port))); |
| 2782 | + printk("PCIE_PHY_PLL_CTRL2 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_PLL_CTRL2(pcie_port))); |
| 2783 | + printk("PCIE_PHY_PLL_CTRL3 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_PLL_CTRL3(pcie_port))); |
| 2784 | + printk("PCIE_PHY_PLL_CTRL4 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_PLL_CTRL4(pcie_port))); |
| 2785 | + printk("PCIE_PHY_PLL_CTRL5 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_PLL_CTRL5(pcie_port))); |
| 2786 | + printk("PCIE_PHY_PLL_CTRL6 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_PLL_CTRL6(pcie_port))); |
| 2787 | + printk("PCIE_PHY_PLL_CTRL7 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_PLL_CTRL7(pcie_port))); |
| 2788 | + printk("PCIE_PHY_PLL_A_CTRL1 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_PLL_A_CTRL1(pcie_port))); |
| 2789 | + printk("PCIE_PHY_PLL_A_CTRL2 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_PLL_A_CTRL2(pcie_port))); |
| 2790 | + printk("PCIE_PHY_PLL_A_CTRL3 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_PLL_A_CTRL3(pcie_port))); |
| 2791 | + printk("PCIE_PHY_PLL_STATUS 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_PLL_STATUS(pcie_port))); |
| 2792 | + |
| 2793 | + printk("TX1 REGFILE\n"); |
| 2794 | + printk("PCIE_PHY_TX1_CTRL1 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX1_CTRL1(pcie_port))); |
| 2795 | + printk("PCIE_PHY_TX1_CTRL2 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX1_CTRL2(pcie_port))); |
| 2796 | + printk("PCIE_PHY_TX1_CTRL3 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX1_CTRL3(pcie_port))); |
| 2797 | + printk("PCIE_PHY_TX1_A_CTRL1 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX1_A_CTRL1(pcie_port))); |
| 2798 | + printk("PCIE_PHY_TX1_A_CTRL2 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX1_A_CTRL2(pcie_port))); |
| 2799 | + printk("PCIE_PHY_TX1_MOD1 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX1_MOD1(pcie_port))); |
| 2800 | + printk("PCIE_PHY_TX1_MOD2 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX1_MOD2(pcie_port))); |
| 2801 | + printk("PCIE_PHY_TX1_MOD3 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX1_MOD3(pcie_port))); |
| 2802 | + |
| 2803 | + printk("TX2 REGFILE\n"); |
| 2804 | + printk("PCIE_PHY_TX2_CTRL1 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX2_CTRL1(pcie_port))); |
| 2805 | + printk("PCIE_PHY_TX2_CTRL2 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX2_CTRL2(pcie_port))); |
| 2806 | + printk("PCIE_PHY_TX2_A_CTRL1 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX2_A_CTRL1(pcie_port))); |
| 2807 | + printk("PCIE_PHY_TX2_A_CTRL2 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX2_A_CTRL2(pcie_port))); |
| 2808 | + printk("PCIE_PHY_TX2_MOD1 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX2_MOD1(pcie_port))); |
| 2809 | + printk("PCIE_PHY_TX2_MOD2 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX2_MOD2(pcie_port))); |
| 2810 | + printk("PCIE_PHY_TX2_MOD3 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_TX2_MOD3(pcie_port))); |
| 2811 | + |
| 2812 | + printk("RX1 REGFILE\n"); |
| 2813 | + printk("PCIE_PHY_RX1_CTRL1 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_RX1_CTRL1(pcie_port))); |
| 2814 | + printk("PCIE_PHY_RX1_CTRL2 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_RX1_CTRL2(pcie_port))); |
| 2815 | + printk("PCIE_PHY_RX1_CDR 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_RX1_CDR(pcie_port))); |
| 2816 | + printk("PCIE_PHY_RX1_EI 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_RX1_EI(pcie_port))); |
| 2817 | + printk("PCIE_PHY_RX1_A_CTRL 0x%04x\n", IFX_PCIE_PHY_REG16(PCIE_PHY_RX1_A_CTRL(pcie_port))); |
| 2818 | +} |
| 2819 | +#endif /* IFX_PCI_PHY_REG_DUMP */ |
| 2820 | + |
| 2821 | +static void |
| 2822 | +pcie_phy_comm_setup(int pcie_port) |
| 2823 | +{ |
| 2824 | + /* PLL Setting */ |
| 2825 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL1(pcie_port), 0x120e, 0xFFFF); |
| 2826 | + |
| 2827 | + /* increase the bias reference voltage */ |
| 2828 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL2(pcie_port), 0x39D7, 0xFFFF); |
| 2829 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL3(pcie_port), 0x0900, 0xFFFF); |
| 2830 | + |
| 2831 | + /* Endcnt */ |
| 2832 | + IFX_PCIE_PHY_REG(PCIE_PHY_RX1_EI(pcie_port), 0x0004, 0xFFFF); |
| 2833 | + IFX_PCIE_PHY_REG(PCIE_PHY_RX1_A_CTRL(pcie_port), 0x6803, 0xFFFF); |
| 2834 | + |
| 2835 | + /* force */ |
| 2836 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL1(pcie_port), 0x0008, 0x0008); |
| 2837 | + |
| 2838 | + /* predrv_ser_en */ |
| 2839 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_A_CTRL2(pcie_port), 0x0706, 0xFFFF); |
| 2840 | + |
| 2841 | + /* ctrl_lim */ |
| 2842 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL3(pcie_port), 0x1FFF, 0xFFFF); |
| 2843 | + |
| 2844 | + /* ctrl */ |
| 2845 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_A_CTRL1(pcie_port), 0x0800, 0xFF00); |
| 2846 | + |
| 2847 | + /* predrv_ser_en */ |
| 2848 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX2_A_CTRL2(pcie_port), 0x4702, 0x7F00); |
| 2849 | + |
| 2850 | + /* RTERM*/ |
| 2851 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL2(pcie_port), 0x2e00, 0xFFFF); |
| 2852 | + |
| 2853 | + /* Improved 100MHz clock output */ |
| 2854 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX2_CTRL2(pcie_port), 0x3096, 0xFFFF); |
| 2855 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX2_A_CTRL2(pcie_port), 0x4707, 0xFFFF); |
| 2856 | + |
| 2857 | + /* Reduced CDR BW to avoid glitches */ |
| 2858 | + IFX_PCIE_PHY_REG(PCIE_PHY_RX1_CDR(pcie_port), 0x0235, 0xFFFF); |
| 2859 | +} |
| 2860 | + |
| 2861 | +#ifdef CONFIG_IFX_PCIE_PHY_36MHZ_MODE |
| 2862 | +static void |
| 2863 | +pcie_phy_36mhz_mode_setup(int pcie_port) |
| 2864 | +{ |
| 2865 | + IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d enter\n", __func__, pcie_port); |
| 2866 | +#ifdef IFX_PCI_PHY_REG_DUMP |
| 2867 | + IFX_PCIE_PRINT(PCIE_MSG_PHY, "Initial PHY register dump\n"); |
| 2868 | + pcie_phy_reg_dump(pcie_port); |
| 2869 | +#endif |
| 2870 | + |
| 2871 | + /* en_ext_mmd_div_ratio */ |
| 2872 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0000, 0x0002); |
| 2873 | + |
| 2874 | + /* ext_mmd_div_ratio*/ |
| 2875 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0000, 0x0070); |
| 2876 | + |
| 2877 | + /* pll_ensdm */ |
| 2878 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0200, 0x0200); |
| 2879 | + |
| 2880 | + /* en_const_sdm */ |
| 2881 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0100, 0x0100); |
| 2882 | + |
| 2883 | + /* mmd */ |
| 2884 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL3(pcie_port), 0x2000, 0xe000); |
| 2885 | + |
| 2886 | + /* lf_mode */ |
| 2887 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL2(pcie_port), 0x0000, 0x4000); |
| 2888 | + |
| 2889 | + /* const_sdm */ |
| 2890 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL1(pcie_port), 0x38e4, 0xFFFF); |
| 2891 | + |
| 2892 | + /* const sdm */ |
| 2893 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x00ee, 0x00FF); |
| 2894 | + |
| 2895 | + /* pllmod */ |
| 2896 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL7(pcie_port), 0x0002, 0xFFFF); |
| 2897 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL6(pcie_port), 0x3a04, 0xFFFF); |
| 2898 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL5(pcie_port), 0xfae3, 0xFFFF); |
| 2899 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL4(pcie_port), 0x1b72, 0xFFFF); |
| 2900 | + |
| 2901 | + IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d exit\n", __func__, pcie_port); |
| 2902 | +} |
| 2903 | +#endif /* CONFIG_IFX_PCIE_PHY_36MHZ_MODE */ |
| 2904 | + |
| 2905 | +#ifdef CONFIG_IFX_PCIE_PHY_36MHZ_SSC_MODE |
| 2906 | +static void |
| 2907 | +pcie_phy_36mhz_ssc_mode_setup(int pcie_port) |
| 2908 | +{ |
| 2909 | + IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d enter\n", __func__, pcie_port); |
| 2910 | +#ifdef IFX_PCI_PHY_REG_DUMP |
| 2911 | + IFX_PCIE_PRINT(PCIE_MSG_PHY, "Initial PHY register dump\n"); |
| 2912 | + pcie_phy_reg_dump(pcie_port); |
| 2913 | +#endif |
| 2914 | + |
| 2915 | + /* PLL Setting */ |
| 2916 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL1(pcie_port), 0x120e, 0xFFFF); |
| 2917 | + |
| 2918 | + /* Increase the bias reference voltage */ |
| 2919 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL2(pcie_port), 0x39D7, 0xFFFF); |
| 2920 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL3(pcie_port), 0x0900, 0xFFFF); |
| 2921 | + |
| 2922 | + /* Endcnt */ |
| 2923 | + IFX_PCIE_PHY_REG(PCIE_PHY_RX1_EI(pcie_port), 0x0004, 0xFFFF); |
| 2924 | + IFX_PCIE_PHY_REG(PCIE_PHY_RX1_A_CTRL(pcie_port), 0x6803, 0xFFFF); |
| 2925 | + |
| 2926 | + /* Force */ |
| 2927 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL1(pcie_port), 0x0008, 0x0008); |
| 2928 | + |
| 2929 | + /* Predrv_ser_en */ |
| 2930 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_A_CTRL2(pcie_port), 0x0706, 0xFFFF); |
| 2931 | + |
| 2932 | + /* ctrl_lim */ |
| 2933 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL3(pcie_port), 0x1FFF, 0xFFFF); |
| 2934 | + |
| 2935 | + /* ctrl */ |
| 2936 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_A_CTRL1(pcie_port), 0x0800, 0xFF00); |
| 2937 | + |
| 2938 | + /* predrv_ser_en */ |
| 2939 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX2_A_CTRL2(pcie_port), 0x4702, 0x7F00); |
| 2940 | + |
| 2941 | + /* RTERM*/ |
| 2942 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL2(pcie_port), 0x2e00, 0xFFFF); |
| 2943 | + |
| 2944 | + /* en_ext_mmd_div_ratio */ |
| 2945 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0000, 0x0002); |
| 2946 | + |
| 2947 | + /* ext_mmd_div_ratio*/ |
| 2948 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0000, 0x0070); |
| 2949 | + |
| 2950 | + /* pll_ensdm */ |
| 2951 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0400, 0x0400); |
| 2952 | + |
| 2953 | + /* en_const_sdm */ |
| 2954 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0200, 0x0200); |
| 2955 | + |
| 2956 | + /* mmd */ |
| 2957 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL3(pcie_port), 0x2000, 0xe000); |
| 2958 | + |
| 2959 | + /* lf_mode */ |
| 2960 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL2(pcie_port), 0x0000, 0x4000); |
| 2961 | + |
| 2962 | + /* const_sdm */ |
| 2963 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL1(pcie_port), 0x38e4, 0xFFFF); |
| 2964 | + |
| 2965 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0000, 0x0100); |
| 2966 | + /* const sdm */ |
| 2967 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x00ee, 0x00FF); |
| 2968 | + |
| 2969 | + /* pllmod */ |
| 2970 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL7(pcie_port), 0x0002, 0xFFFF); |
| 2971 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL6(pcie_port), 0x3a04, 0xFFFF); |
| 2972 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL5(pcie_port), 0xfae3, 0xFFFF); |
| 2973 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL4(pcie_port), 0x1c72, 0xFFFF); |
| 2974 | + |
| 2975 | + /* improved 100MHz clock output */ |
| 2976 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX2_CTRL2(pcie_port), 0x3096, 0xFFFF); |
| 2977 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX2_A_CTRL2(pcie_port), 0x4707, 0xFFFF); |
| 2978 | + |
| 2979 | + /* reduced CDR BW to avoid glitches */ |
| 2980 | + IFX_PCIE_PHY_REG(PCIE_PHY_RX1_CDR(pcie_port), 0x0235, 0xFFFF); |
| 2981 | + |
| 2982 | + IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d exit\n", __func__, pcie_port); |
| 2983 | +} |
| 2984 | +#endif /* CONFIG_IFX_PCIE_PHY_36MHZ_SSC_MODE */ |
| 2985 | + |
| 2986 | +#ifdef CONFIG_IFX_PCIE_PHY_25MHZ_MODE |
| 2987 | +static void |
| 2988 | +pcie_phy_25mhz_mode_setup(int pcie_port) |
| 2989 | +{ |
| 2990 | + IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d enter\n", __func__, pcie_port); |
| 2991 | +#ifdef IFX_PCI_PHY_REG_DUMP |
| 2992 | + IFX_PCIE_PRINT(PCIE_MSG_PHY, "Initial PHY register dump\n"); |
| 2993 | + pcie_phy_reg_dump(pcie_port); |
| 2994 | +#endif |
| 2995 | + /* en_const_sdm */ |
| 2996 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0100, 0x0100); |
| 2997 | + |
| 2998 | + /* pll_ensdm */ |
| 2999 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0000, 0x0200); |
| 3000 | + |
| 3001 | + /* en_ext_mmd_div_ratio*/ |
| 3002 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0002, 0x0002); |
| 3003 | + |
| 3004 | + /* ext_mmd_div_ratio*/ |
| 3005 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0040, 0x0070); |
| 3006 | + |
| 3007 | + /* mmd */ |
| 3008 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL3(pcie_port), 0x6000, 0xe000); |
| 3009 | + |
| 3010 | + /* lf_mode */ |
| 3011 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL2(pcie_port), 0x4000, 0x4000); |
| 3012 | + |
| 3013 | + IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d exit\n", __func__, pcie_port); |
| 3014 | +} |
| 3015 | +#endif /* CONFIG_IFX_PCIE_PHY_25MHZ_MODE */ |
| 3016 | + |
| 3017 | +#ifdef CONFIG_IFX_PCIE_PHY_100MHZ_MODE |
| 3018 | +static void |
| 3019 | +pcie_phy_100mhz_mode_setup(int pcie_port) |
| 3020 | +{ |
| 3021 | + IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d enter\n", __func__, pcie_port); |
| 3022 | +#ifdef IFX_PCI_PHY_REG_DUMP |
| 3023 | + IFX_PCIE_PRINT(PCIE_MSG_PHY, "Initial PHY register dump\n"); |
| 3024 | + pcie_phy_reg_dump(pcie_port); |
| 3025 | +#endif |
| 3026 | + /* en_ext_mmd_div_ratio */ |
| 3027 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0000, 0x0002); |
| 3028 | + |
| 3029 | + /* ext_mmd_div_ratio*/ |
| 3030 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0000, 0x0070); |
| 3031 | + |
| 3032 | + /* pll_ensdm */ |
| 3033 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0200, 0x0200); |
| 3034 | + |
| 3035 | + /* en_const_sdm */ |
| 3036 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0100, 0x0100); |
| 3037 | + |
| 3038 | + /* mmd */ |
| 3039 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL3(pcie_port), 0x2000, 0xe000); |
| 3040 | + |
| 3041 | + /* lf_mode */ |
| 3042 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL2(pcie_port), 0x0000, 0x4000); |
| 3043 | + |
| 3044 | + /* const_sdm */ |
| 3045 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL1(pcie_port), 0x38e4, 0xFFFF); |
| 3046 | + |
| 3047 | + /* const sdm */ |
| 3048 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x00ee, 0x00FF); |
| 3049 | + |
| 3050 | + /* pllmod */ |
| 3051 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL7(pcie_port), 0x0002, 0xFFFF); |
| 3052 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL6(pcie_port), 0x3a04, 0xFFFF); |
| 3053 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL5(pcie_port), 0xfae3, 0xFFFF); |
| 3054 | + IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL4(pcie_port), 0x1b72, 0xFFFF); |
| 3055 | + |
| 3056 | + IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d exit\n", __func__, pcie_port); |
| 3057 | +} |
| 3058 | +#endif /* CONFIG_IFX_PCIE_PHY_100MHZ_MODE */ |
| 3059 | + |
| 3060 | +static int |
| 3061 | +pcie_phy_wait_startup_ready(int pcie_port) |
| 3062 | +{ |
| 3063 | + int i; |
| 3064 | + |
| 3065 | + for (i = 0; i < IFX_PCIE_PLL_TIMEOUT; i++) { |
| 3066 | + if ((IFX_PCIE_PHY_REG16(PCIE_PHY_PLL_STATUS(pcie_port)) & 0x0040) != 0) { |
| 3067 | + break; |
| 3068 | + } |
| 3069 | + udelay(10); |
| 3070 | + } |
| 3071 | + if (i >= IFX_PCIE_PLL_TIMEOUT) { |
| 3072 | + printk(KERN_ERR "%s PLL Link timeout\n", __func__); |
| 3073 | + return -1; |
| 3074 | + } |
| 3075 | + return 0; |
| 3076 | +} |
| 3077 | + |
| 3078 | +static void |
| 3079 | +pcie_phy_load_enable(int pcie_port, int slice) |
| 3080 | +{ |
| 3081 | + /* Set the load_en of tx/rx slice to '1' */ |
| 3082 | + switch (slice) { |
| 3083 | + case 1: |
| 3084 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL1(pcie_port), 0x0010, 0x0010); |
| 3085 | + break; |
| 3086 | + case 2: |
| 3087 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX2_CTRL1(pcie_port), 0x0010, 0x0010); |
| 3088 | + break; |
| 3089 | + case 3: |
| 3090 | + IFX_PCIE_PHY_REG(PCIE_PHY_RX1_CTRL1(pcie_port), 0x0002, 0x0002); |
| 3091 | + break; |
| 3092 | + } |
| 3093 | +} |
| 3094 | + |
| 3095 | +static void |
| 3096 | +pcie_phy_load_disable(int pcie_port, int slice) |
| 3097 | +{ |
| 3098 | + /* set the load_en of tx/rx slice to '0' */ |
| 3099 | + switch (slice) { |
| 3100 | + case 1: |
| 3101 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL1(pcie_port), 0x0000, 0x0010); |
| 3102 | + break; |
| 3103 | + case 2: |
| 3104 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX2_CTRL1(pcie_port), 0x0000, 0x0010); |
| 3105 | + break; |
| 3106 | + case 3: |
| 3107 | + IFX_PCIE_PHY_REG(PCIE_PHY_RX1_CTRL1(pcie_port), 0x0000, 0x0002); |
| 3108 | + break; |
| 3109 | + } |
| 3110 | +} |
| 3111 | + |
| 3112 | +static void |
| 3113 | +pcie_phy_load_war(int pcie_port) |
| 3114 | +{ |
| 3115 | + int slice; |
| 3116 | + |
| 3117 | + for (slice = 1; slice < 4; slice++) { |
| 3118 | + pcie_phy_load_enable(pcie_port, slice); |
| 3119 | + udelay(1); |
| 3120 | + pcie_phy_load_disable(pcie_port, slice); |
| 3121 | + } |
| 3122 | +} |
| 3123 | + |
| 3124 | +static void |
| 3125 | +pcie_phy_tx2_modulation(int pcie_port) |
| 3126 | +{ |
| 3127 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX2_MOD1(pcie_port), 0x1FFE, 0xFFFF); |
| 3128 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX2_MOD2(pcie_port), 0xFFFE, 0xFFFF); |
| 3129 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX2_MOD3(pcie_port), 0x0601, 0xFFFF); |
| 3130 | + mdelay(1); |
| 3131 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX2_MOD3(pcie_port), 0x0001, 0xFFFF); |
| 3132 | +} |
| 3133 | + |
| 3134 | +static void |
| 3135 | +pcie_phy_tx1_modulation(int pcie_port) |
| 3136 | +{ |
| 3137 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_MOD1(pcie_port), 0x1FFE, 0xFFFF); |
| 3138 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_MOD2(pcie_port), 0xFFFE, 0xFFFF); |
| 3139 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_MOD3(pcie_port), 0x0601, 0xFFFF); |
| 3140 | + mdelay(1); |
| 3141 | + IFX_PCIE_PHY_REG(PCIE_PHY_TX1_MOD3(pcie_port), 0x0001, 0xFFFF); |
| 3142 | +} |
| 3143 | + |
| 3144 | +static void |
| 3145 | +pcie_phy_tx_modulation_war(int pcie_port) |
| 3146 | +{ |
| 3147 | + int i; |
| 3148 | + |
| 3149 | +#define PCIE_PHY_MODULATION_NUM 5 |
| 3150 | + for (i = 0; i < PCIE_PHY_MODULATION_NUM; i++) { |
| 3151 | + pcie_phy_tx2_modulation(pcie_port); |
| 3152 | + pcie_phy_tx1_modulation(pcie_port); |
| 3153 | + } |
| 3154 | +#undef PCIE_PHY_MODULATION_NUM |
| 3155 | +} |
| 3156 | + |
| 3157 | +void |
| 3158 | +pcie_phy_clock_mode_setup(int pcie_port) |
| 3159 | +{ |
| 3160 | + pcie_pdi_big_endian(pcie_port); |
| 3161 | + |
| 3162 | + /* Enable PDI to access PCIe PHY register */ |
| 3163 | + pcie_pdi_pmu_enable(pcie_port); |
| 3164 | + |
| 3165 | + /* Configure PLL and PHY clock */ |
| 3166 | + pcie_phy_comm_setup(pcie_port); |
| 3167 | + |
| 3168 | +#ifdef CONFIG_IFX_PCIE_PHY_36MHZ_MODE |
| 3169 | + pcie_phy_36mhz_mode_setup(pcie_port); |
| 3170 | +#elif defined(CONFIG_IFX_PCIE_PHY_36MHZ_SSC_MODE) |
| 3171 | + pcie_phy_36mhz_ssc_mode_setup(pcie_port); |
| 3172 | +#elif defined(CONFIG_IFX_PCIE_PHY_25MHZ_MODE) |
| 3173 | + pcie_phy_25mhz_mode_setup(pcie_port); |
| 3174 | +#elif defined (CONFIG_IFX_PCIE_PHY_100MHZ_MODE) |
| 3175 | + pcie_phy_100mhz_mode_setup(pcie_port); |
| 3176 | +#else |
| 3177 | + #error "PCIE PHY Clock Mode must be chosen first!!!!" |
| 3178 | +#endif /* CONFIG_IFX_PCIE_PHY_36MHZ_MODE */ |
| 3179 | + |
| 3180 | + /* Enable PCIe PHY and make PLL setting take effect */ |
| 3181 | + pcie_phy_pmu_enable(pcie_port); |
| 3182 | + |
| 3183 | + /* Check if we are in startup_ready status */ |
| 3184 | + pcie_phy_wait_startup_ready(pcie_port); |
| 3185 | + |
| 3186 | + pcie_phy_load_war(pcie_port); |
| 3187 | + |
| 3188 | + /* Apply TX modulation workarounds */ |
| 3189 | + pcie_phy_tx_modulation_war(pcie_port); |
| 3190 | + |
| 3191 | +#ifdef IFX_PCI_PHY_REG_DUMP |
| 3192 | + IFX_PCIE_PRINT(PCIE_MSG_PHY, "Modified PHY register dump\n"); |
| 3193 | + pcie_phy_reg_dump(pcie_port); |
| 3194 | +#endif |
| 3195 | +} |
| 3196 | + |
| 3197 | diff --git a/arch/mips/pci/ifxmips_pcie_pm.c b/arch/mips/pci/ifxmips_pcie_pm.c |
| 3198 | new file mode 100644 |
| 3199 | index 0000000..a10ecad |
| 3200 | --- /dev/null |
| 3201 | +++ b/arch/mips/pci/ifxmips_pcie_pm.c |
| 3202 | @@ -0,0 +1,176 @@ |
| 3203 | +/****************************************************************************** |
| 3204 | +** |
| 3205 | +** FILE NAME : ifxmips_pcie_pm.c |
| 3206 | +** PROJECT : IFX UEIP |
| 3207 | +** MODULES : PCIE Root Complex Driver |
| 3208 | +** |
| 3209 | +** DATE : 21 Dec 2009 |
| 3210 | +** AUTHOR : Lei Chuanhua |
| 3211 | +** DESCRIPTION : PCIE Root Complex Driver Power Managment |
| 3212 | +** COPYRIGHT : Copyright (c) 2009 |
| 3213 | +** Lantiq Deutschland GmbH |
| 3214 | +** Am Campeon 3, 85579 Neubiberg, Germany |
| 3215 | +** |
| 3216 | +** This program is free software; you can redistribute it and/or modify |
| 3217 | +** it under the terms of the GNU General Public License as published by |
| 3218 | +** the Free Software Foundation; either version 2 of the License, or |
| 3219 | +** (at your option) any later version. |
| 3220 | +** |
| 3221 | +** HISTORY |
| 3222 | +** $Date $Author $Comment |
| 3223 | +** 21 Dec,2009 Lei Chuanhua First UEIP release |
| 3224 | +*******************************************************************************/ |
| 3225 | +/*! |
| 3226 | + \defgroup IFX_PCIE_PM Power Management functions |
| 3227 | + \ingroup IFX_PCIE |
| 3228 | + \brief IFX PCIE Root Complex Driver power management functions |
| 3229 | +*/ |
| 3230 | + |
| 3231 | +/*! |
| 3232 | + \file ifxmips_pcie_pm.c |
| 3233 | + \ingroup IFX_PCIE |
| 3234 | + \brief source file for PCIE Root Complex Driver Power Management |
| 3235 | +*/ |
| 3236 | + |
| 3237 | +#ifndef EXPORT_SYMTAB |
| 3238 | +#define EXPORT_SYMTAB |
| 3239 | +#endif |
| 3240 | +#ifndef AUTOCONF_INCLUDED |
| 3241 | +#include <linux/config.h> |
| 3242 | +#endif /* AUTOCONF_INCLUDED */ |
| 3243 | +#include <linux/version.h> |
| 3244 | +#include <linux/module.h> |
| 3245 | +#include <linux/types.h> |
| 3246 | +#include <linux/kernel.h> |
| 3247 | +#include <asm/system.h> |
| 3248 | + |
| 3249 | +/* Project header */ |
| 3250 | +#include <asm/ifx/ifx_types.h> |
| 3251 | +#include <asm/ifx/ifx_regs.h> |
| 3252 | +#include <asm/ifx/common_routines.h> |
| 3253 | +#include <asm/ifx/ifx_pmcu.h> |
| 3254 | +#include "ifxmips_pcie_pm.h" |
| 3255 | + |
| 3256 | +/** |
| 3257 | + * \fn static IFX_PMCU_RETURN_t ifx_pcie_pmcu_state_change(IFX_PMCU_STATE_t pmcuState) |
| 3258 | + * \brief the callback function to request pmcu state in the power management hardware-dependent module |
| 3259 | + * |
| 3260 | + * \param pmcuState This parameter is a PMCU state. |
| 3261 | + * |
| 3262 | + * \return IFX_PMCU_RETURN_SUCCESS Set Power State successfully |
| 3263 | + * \return IFX_PMCU_RETURN_ERROR Failed to set power state. |
| 3264 | + * \return IFX_PMCU_RETURN_DENIED Not allowed to operate power state |
| 3265 | + * \ingroup IFX_PCIE_PM |
| 3266 | + */ |
| 3267 | +static IFX_PMCU_RETURN_t |
| 3268 | +ifx_pcie_pmcu_state_change(IFX_PMCU_STATE_t pmcuState) |
| 3269 | +{ |
| 3270 | + switch(pmcuState) |
| 3271 | + { |
| 3272 | + case IFX_PMCU_STATE_D0: |
| 3273 | + return IFX_PMCU_RETURN_SUCCESS; |
| 3274 | + case IFX_PMCU_STATE_D1: // Not Applicable |
| 3275 | + return IFX_PMCU_RETURN_DENIED; |
| 3276 | + case IFX_PMCU_STATE_D2: // Not Applicable |
| 3277 | + return IFX_PMCU_RETURN_DENIED; |
| 3278 | + case IFX_PMCU_STATE_D3: // Module clock gating and Power gating |
| 3279 | + return IFX_PMCU_RETURN_SUCCESS; |
| 3280 | + default: |
| 3281 | + return IFX_PMCU_RETURN_DENIED; |
| 3282 | + } |
| 3283 | +} |
| 3284 | + |
| 3285 | +/** |
| 3286 | + * \fn static IFX_PMCU_RETURN_t ifx_pcie_pmcu_state_get(IFX_PMCU_STATE_t *pmcuState) |
| 3287 | + * \brief the callback function to get pmcu state in the power management hardware-dependent module |
| 3288 | + |
| 3289 | + * \param pmcuState Pointer to return power state. |
| 3290 | + * |
| 3291 | + * \return IFX_PMCU_RETURN_SUCCESS Set Power State successfully |
| 3292 | + * \return IFX_PMCU_RETURN_ERROR Failed to set power state. |
| 3293 | + * \return IFX_PMCU_RETURN_DENIED Not allowed to operate power state |
| 3294 | + * \ingroup IFX_PCIE_PM |
| 3295 | + */ |
| 3296 | +static IFX_PMCU_RETURN_t |
| 3297 | +ifx_pcie_pmcu_state_get(IFX_PMCU_STATE_t *pmcuState) |
| 3298 | +{ |
| 3299 | + return IFX_PMCU_RETURN_SUCCESS; |
| 3300 | +} |
| 3301 | + |
| 3302 | +/** |
| 3303 | + * \fn IFX_PMCU_RETURN_t ifx_pcie_pmcu_prechange(IFX_PMCU_MODULE_t pmcuModule, IFX_PMCU_STATE_t newState, IFX_PMCU_STATE_t oldState) |
| 3304 | + * \brief Apply all callbacks registered to be executed before a state change for pmcuModule |
| 3305 | + * |
| 3306 | + * \param pmcuModule Module |
| 3307 | + * \param newState New state |
| 3308 | + * \param oldState Old state |
| 3309 | + * \return IFX_PMCU_RETURN_SUCCESS Set Power State successfully |
| 3310 | + * \return IFX_PMCU_RETURN_ERROR Failed to set power state. |
| 3311 | + * \ingroup IFX_PCIE_PM |
| 3312 | + */ |
| 3313 | +static IFX_PMCU_RETURN_t |
| 3314 | +ifx_pcie_pmcu_prechange(IFX_PMCU_MODULE_t pmcuModule, IFX_PMCU_STATE_t newState, IFX_PMCU_STATE_t oldState) |
| 3315 | +{ |
| 3316 | + return IFX_PMCU_RETURN_SUCCESS; |
| 3317 | +} |
| 3318 | + |
| 3319 | +/** |
| 3320 | + * \fn IFX_PMCU_RETURN_t ifx_pcie_pmcu_postchange(IFX_PMCU_MODULE_t pmcuModule, IFX_PMCU_STATE_t newState, IFX_PMCU_STATE_t oldState) |
| 3321 | + * \brief Apply all callbacks registered to be executed before a state change for pmcuModule |
| 3322 | + * |
| 3323 | + * \param pmcuModule Module |
| 3324 | + * \param newState New state |
| 3325 | + * \param oldState Old state |
| 3326 | + * \return IFX_PMCU_RETURN_SUCCESS Set Power State successfully |
| 3327 | + * \return IFX_PMCU_RETURN_ERROR Failed to set power state. |
| 3328 | + * \ingroup IFX_PCIE_PM |
| 3329 | + */ |
| 3330 | +static IFX_PMCU_RETURN_t |
| 3331 | +ifx_pcie_pmcu_postchange(IFX_PMCU_MODULE_t pmcuModule, IFX_PMCU_STATE_t newState, IFX_PMCU_STATE_t oldState) |
| 3332 | +{ |
| 3333 | + return IFX_PMCU_RETURN_SUCCESS; |
| 3334 | +} |
| 3335 | + |
| 3336 | +/** |
| 3337 | + * \fn static void ifx_pcie_pmcu_init(void) |
| 3338 | + * \brief Register with central PMCU module |
| 3339 | + * \return none |
| 3340 | + * \ingroup IFX_PCIE_PM |
| 3341 | + */ |
| 3342 | +void |
| 3343 | +ifx_pcie_pmcu_init(void) |
| 3344 | +{ |
| 3345 | + IFX_PMCU_REGISTER_t pmcuRegister; |
| 3346 | + |
| 3347 | + /* XXX, hook driver context */ |
| 3348 | + |
| 3349 | + /* State function register */ |
| 3350 | + memset(&pmcuRegister, 0, sizeof(IFX_PMCU_REGISTER_t)); |
| 3351 | + pmcuRegister.pmcuModule = IFX_PMCU_MODULE_PCIE; |
| 3352 | + pmcuRegister.pmcuModuleNr = 0; |
| 3353 | + pmcuRegister.ifx_pmcu_state_change = ifx_pcie_pmcu_state_change; |
| 3354 | + pmcuRegister.ifx_pmcu_state_get = ifx_pcie_pmcu_state_get; |
| 3355 | + pmcuRegister.pre = ifx_pcie_pmcu_prechange; |
| 3356 | + pmcuRegister.post= ifx_pcie_pmcu_postchange; |
| 3357 | + ifx_pmcu_register(&pmcuRegister); |
| 3358 | +} |
| 3359 | + |
| 3360 | +/** |
| 3361 | + * \fn static void ifx_pcie_pmcu_exit(void) |
| 3362 | + * \brief Unregister with central PMCU module |
| 3363 | + * |
| 3364 | + * \return none |
| 3365 | + * \ingroup IFX_PCIE_PM |
| 3366 | + */ |
| 3367 | +void |
| 3368 | +ifx_pcie_pmcu_exit(void) |
| 3369 | +{ |
| 3370 | + IFX_PMCU_REGISTER_t pmcuUnRegister; |
| 3371 | + |
| 3372 | + /* XXX, hook driver context */ |
| 3373 | + |
| 3374 | + pmcuUnRegister.pmcuModule = IFX_PMCU_MODULE_PCIE; |
| 3375 | + pmcuUnRegister.pmcuModuleNr = 0; |
| 3376 | + ifx_pmcu_unregister(&pmcuUnRegister); |
| 3377 | +} |
| 3378 | + |
| 3379 | diff --git a/arch/mips/pci/ifxmips_pcie_pm.h b/arch/mips/pci/ifxmips_pcie_pm.h |
| 3380 | new file mode 100644 |
| 3381 | index 0000000..6ece20d |
| 3382 | --- /dev/null |
| 3383 | +++ b/arch/mips/pci/ifxmips_pcie_pm.h |
| 3384 | @@ -0,0 +1,36 @@ |
| 3385 | +/****************************************************************************** |
| 3386 | +** |
| 3387 | +** FILE NAME : ifxmips_pcie_pm.h |
| 3388 | +** PROJECT : IFX UEIP |
| 3389 | +** MODULES : PCIe Root Complex Driver |
| 3390 | +** |
| 3391 | +** DATE : 21 Dec 2009 |
| 3392 | +** AUTHOR : Lei Chuanhua |
| 3393 | +** DESCRIPTION : PCIe Root Complex Driver Power Managment |
| 3394 | +** COPYRIGHT : Copyright (c) 2009 |
| 3395 | +** Lantiq Deutschland GmbH |
| 3396 | +** Am Campeon 3, 85579 Neubiberg, Germany |
| 3397 | +** |
| 3398 | +** This program is free software; you can redistribute it and/or modify |
| 3399 | +** it under the terms of the GNU General Public License as published by |
| 3400 | +** the Free Software Foundation; either version 2 of the License, or |
| 3401 | +** (at your option) any later version. |
| 3402 | +** |
| 3403 | +** HISTORY |
| 3404 | +** $Date $Author $Comment |
| 3405 | +** 21 Dec,2009 Lei Chuanhua First UEIP release |
| 3406 | +*******************************************************************************/ |
| 3407 | +/*! |
| 3408 | + \file ifxmips_pcie_pm.h |
| 3409 | + \ingroup IFX_PCIE |
| 3410 | + \brief header file for PCIe Root Complex Driver Power Management |
| 3411 | +*/ |
| 3412 | + |
| 3413 | +#ifndef IFXMIPS_PCIE_PM_H |
| 3414 | +#define IFXMIPS_PCIE_PM_H |
| 3415 | + |
| 3416 | +void ifx_pcie_pmcu_init(void); |
| 3417 | +void ifx_pcie_pmcu_exit(void); |
| 3418 | + |
| 3419 | +#endif /* IFXMIPS_PCIE_PM_H */ |
| 3420 | + |
| 3421 | diff --git a/arch/mips/pci/ifxmips_pcie_reg.h b/arch/mips/pci/ifxmips_pcie_reg.h |
| 3422 | new file mode 100644 |
| 3423 | index 0000000..e7e4b6c |
| 3424 | --- /dev/null |
| 3425 | +++ b/arch/mips/pci/ifxmips_pcie_reg.h |
| 3426 | @@ -0,0 +1,1001 @@ |
| 3427 | +/****************************************************************************** |
| 3428 | +** |
| 3429 | +** FILE NAME : ifxmips_pcie_reg.h |
| 3430 | +** PROJECT : IFX UEIP for VRX200 |
| 3431 | +** MODULES : PCIe module |
| 3432 | +** |
| 3433 | +** DATE : 02 Mar 2009 |
| 3434 | +** AUTHOR : Lei Chuanhua |
| 3435 | +** DESCRIPTION : PCIe Root Complex Driver |
| 3436 | +** COPYRIGHT : Copyright (c) 2009 |
| 3437 | +** Infineon Technologies AG |
| 3438 | +** Am Campeon 1-12, 85579 Neubiberg, Germany |
| 3439 | +** |
| 3440 | +** This program is free software; you can redistribute it and/or modify |
| 3441 | +** it under the terms of the GNU General Public License as published by |
| 3442 | +** the Free Software Foundation; either version 2 of the License, or |
| 3443 | +** (at your option) any later version. |
| 3444 | +** HISTORY |
| 3445 | +** $Version $Date $Author $Comment |
| 3446 | +** 0.0.1 17 Mar,2009 Lei Chuanhua Initial version |
| 3447 | +*******************************************************************************/ |
| 3448 | +#ifndef IFXMIPS_PCIE_REG_H |
| 3449 | +#define IFXMIPS_PCIE_REG_H |
| 3450 | +/*! |
| 3451 | + \file ifxmips_pcie_reg.h |
| 3452 | + \ingroup IFX_PCIE |
| 3453 | + \brief header file for PCIe module register definition |
| 3454 | +*/ |
| 3455 | +/* PCIe Address Mapping Base */ |
| 3456 | +#define PCIE_CFG_PHY_BASE 0x1D000000UL |
| 3457 | +#define PCIE_CFG_BASE (KSEG1 + PCIE_CFG_PHY_BASE) |
| 3458 | +#define PCIE_CFG_SIZE (8 * 1024 * 1024) |
| 3459 | + |
| 3460 | +#define PCIE_MEM_PHY_BASE 0x1C000000UL |
| 3461 | +#define PCIE_MEM_BASE (KSEG1 + PCIE_MEM_PHY_BASE) |
| 3462 | +#define PCIE_MEM_SIZE (16 * 1024 * 1024) |
| 3463 | +#define PCIE_MEM_PHY_END (PCIE_MEM_PHY_BASE + PCIE_MEM_SIZE - 1) |
| 3464 | + |
| 3465 | +#define PCIE_IO_PHY_BASE 0x1D800000UL |
| 3466 | +#define PCIE_IO_BASE (KSEG1 + PCIE_IO_PHY_BASE) |
| 3467 | +#define PCIE_IO_SIZE (1 * 1024 * 1024) |
| 3468 | +#define PCIE_IO_PHY_END (PCIE_IO_PHY_BASE + PCIE_IO_SIZE - 1) |
| 3469 | + |
| 3470 | +#define PCIE_RC_CFG_BASE (KSEG1 + 0x1D900000) |
| 3471 | +#define PCIE_APP_LOGIC_REG (KSEG1 + 0x1E100900) |
| 3472 | +#define PCIE_MSI_PHY_BASE 0x1F600000UL |
| 3473 | + |
| 3474 | +#define PCIE_PDI_PHY_BASE 0x1F106800UL |
| 3475 | +#define PCIE_PDI_BASE (KSEG1 + PCIE_PDI_PHY_BASE) |
| 3476 | +#define PCIE_PDI_SIZE 0x400 |
| 3477 | + |
| 3478 | +#define PCIE1_CFG_PHY_BASE 0x19000000UL |
| 3479 | +#define PCIE1_CFG_BASE (KSEG1 + PCIE1_CFG_PHY_BASE) |
| 3480 | +#define PCIE1_CFG_SIZE (8 * 1024 * 1024) |
| 3481 | + |
| 3482 | +#define PCIE1_MEM_PHY_BASE 0x18000000UL |
| 3483 | +#define PCIE1_MEM_BASE (KSEG1 + PCIE1_MEM_PHY_BASE) |
| 3484 | +#define PCIE1_MEM_SIZE (16 * 1024 * 1024) |
| 3485 | +#define PCIE1_MEM_PHY_END (PCIE1_MEM_PHY_BASE + PCIE1_MEM_SIZE - 1) |
| 3486 | + |
| 3487 | +#define PCIE1_IO_PHY_BASE 0x19800000UL |
| 3488 | +#define PCIE1_IO_BASE (KSEG1 + PCIE1_IO_PHY_BASE) |
| 3489 | +#define PCIE1_IO_SIZE (1 * 1024 * 1024) |
| 3490 | +#define PCIE1_IO_PHY_END (PCIE1_IO_PHY_BASE + PCIE1_IO_SIZE - 1) |
| 3491 | + |
| 3492 | +#define PCIE1_RC_CFG_BASE (KSEG1 + 0x19900000) |
| 3493 | +#define PCIE1_APP_LOGIC_REG (KSEG1 + 0x1E100700) |
| 3494 | +#define PCIE1_MSI_PHY_BASE 0x1F400000UL |
| 3495 | + |
| 3496 | +#define PCIE1_PDI_PHY_BASE 0x1F700400UL |
| 3497 | +#define PCIE1_PDI_BASE (KSEG1 + PCIE1_PDI_PHY_BASE) |
| 3498 | +#define PCIE1_PDI_SIZE 0x400 |
| 3499 | + |
| 3500 | +#define PCIE_CFG_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_CFG_BASE) : (PCIE_CFG_BASE)) |
| 3501 | +#define PCIE_MEM_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_MEM_BASE) : (PCIE_MEM_BASE)) |
| 3502 | +#define PCIE_IO_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_IO_BASE) : (PCIE_IO_BASE)) |
| 3503 | +#define PCIE_MEM_PHY_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_MEM_PHY_BASE) : (PCIE_MEM_PHY_BASE)) |
| 3504 | +#define PCIE_MEM_PHY_PORT_TO_END(X) ((X) > 0 ? (PCIE1_MEM_PHY_END) : (PCIE_MEM_PHY_END)) |
| 3505 | +#define PCIE_IO_PHY_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_IO_PHY_BASE) : (PCIE_IO_PHY_BASE)) |
| 3506 | +#define PCIE_IO_PHY_PORT_TO_END(X) ((X) > 0 ? (PCIE1_IO_PHY_END) : (PCIE_IO_PHY_END)) |
| 3507 | +#define PCIE_APP_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_APP_LOGIC_REG) : (PCIE_APP_LOGIC_REG)) |
| 3508 | +#define PCIE_RC_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_RC_CFG_BASE) : (PCIE_RC_CFG_BASE)) |
| 3509 | +#define PCIE_PHY_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_PDI_BASE) : (PCIE_PDI_BASE)) |
| 3510 | + |
| 3511 | +/* PCIe Application Logic Register */ |
| 3512 | +/* RC Core Control Register */ |
| 3513 | +#define PCIE_RC_CCR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x10) |
| 3514 | +/* This should be enabled after initializing configuratin registers |
| 3515 | + * Also should check link status retraining bit |
| 3516 | + */ |
| 3517 | +#define PCIE_RC_CCR_LTSSM_ENABLE 0x00000001 /* Enable LTSSM to continue link establishment */ |
| 3518 | + |
| 3519 | +/* RC Core Debug Register */ |
| 3520 | +#define PCIE_RC_DR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x14) |
| 3521 | +#define PCIE_RC_DR_DLL_UP 0x00000001 /* Data Link Layer Up */ |
| 3522 | +#define PCIE_RC_DR_CURRENT_POWER_STATE 0x0000000E /* Current Power State */ |
| 3523 | +#define PCIE_RC_DR_CURRENT_POWER_STATE_S 1 |
| 3524 | +#define PCIE_RC_DR_CURRENT_LTSSM_STATE 0x000001F0 /* Current LTSSM State */ |
| 3525 | +#define PCIE_RC_DR_CURRENT_LTSSM_STATE_S 4 |
| 3526 | + |
| 3527 | +#define PCIE_RC_DR_PM_DEV_STATE 0x00000E00 /* Power Management D-State */ |
| 3528 | +#define PCIE_RC_DR_PM_DEV_STATE_S 9 |
| 3529 | + |
| 3530 | +#define PCIE_RC_DR_PM_ENABLED 0x00001000 /* Power Management State from PMU */ |
| 3531 | +#define PCIE_RC_DR_PME_EVENT_ENABLED 0x00002000 /* Power Management Event Enable State */ |
| 3532 | +#define PCIE_RC_DR_AUX_POWER_ENABLED 0x00004000 /* Auxiliary Power Enable */ |
| 3533 | + |
| 3534 | +/* Current Power State Definition */ |
| 3535 | +enum { |
| 3536 | + PCIE_RC_DR_D0 = 0, |
| 3537 | + PCIE_RC_DR_D1, /* Not supported */ |
| 3538 | + PCIE_RC_DR_D2, /* Not supported */ |
| 3539 | + PCIE_RC_DR_D3, |
| 3540 | + PCIE_RC_DR_UN, |
| 3541 | +}; |
| 3542 | + |
| 3543 | +/* PHY Link Status Register */ |
| 3544 | +#define PCIE_PHY_SR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x18) |
| 3545 | +#define PCIE_PHY_SR_PHY_LINK_UP 0x00000001 /* PHY Link Up/Down Indicator */ |
| 3546 | + |
| 3547 | +/* Electromechanical Control Register */ |
| 3548 | +#define PCIE_EM_CR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x1C) |
| 3549 | +#define PCIE_EM_CR_CARD_IS_PRESENT 0x00000001 /* Card Presence Detect State */ |
| 3550 | +#define PCIE_EM_CR_MRL_OPEN 0x00000002 /* MRL Sensor State */ |
| 3551 | +#define PCIE_EM_CR_POWER_FAULT_SET 0x00000004 /* Power Fault Detected */ |
| 3552 | +#define PCIE_EM_CR_MRL_SENSOR_SET 0x00000008 /* MRL Sensor Changed */ |
| 3553 | +#define PCIE_EM_CR_PRESENT_DETECT_SET 0x00000010 /* Card Presense Detect Changed */ |
| 3554 | +#define PCIE_EM_CR_CMD_CPL_INT_SET 0x00000020 /* Command Complete Interrupt */ |
| 3555 | +#define PCIE_EM_CR_SYS_INTERLOCK_SET 0x00000040 /* System Electromechanical IterLock Engaged */ |
| 3556 | +#define PCIE_EM_CR_ATTENTION_BUTTON_SET 0x00000080 /* Attention Button Pressed */ |
| 3557 | + |
| 3558 | +/* Interrupt Status Register */ |
| 3559 | +#define PCIE_IR_SR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x20) |
| 3560 | +#define PCIE_IR_SR_PME_CAUSE_MSI 0x00000002 /* MSI caused by PME */ |
| 3561 | +#define PCIE_IR_SR_HP_PME_WAKE_GEN 0x00000004 /* Hotplug PME Wake Generation */ |
| 3562 | +#define PCIE_IR_SR_HP_MSI 0x00000008 /* Hotplug MSI */ |
| 3563 | +#define PCIE_IR_SR_AHB_LU_ERR 0x00000030 /* AHB Bridge Lookup Error Signals */ |
| 3564 | +#define PCIE_IR_SR_AHB_LU_ERR_S 4 |
| 3565 | +#define PCIE_IR_SR_INT_MSG_NUM 0x00003E00 /* Interrupt Message Number */ |
| 3566 | +#define PCIE_IR_SR_INT_MSG_NUM_S 9 |
| 3567 | +#define PCIE_IR_SR_AER_INT_MSG_NUM 0xF8000000 /* Advanced Error Interrupt Message Number */ |
| 3568 | +#define PCIE_IR_SR_AER_INT_MSG_NUM_S 27 |
| 3569 | + |
| 3570 | +/* Message Control Register */ |
| 3571 | +#define PCIE_MSG_CR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x30) |
| 3572 | +#define PCIE_MSG_CR_GEN_PME_TURN_OFF_MSG 0x00000001 /* Generate PME Turn Off Message */ |
| 3573 | +#define PCIE_MSG_CR_GEN_UNLOCK_MSG 0x00000002 /* Generate Unlock Message */ |
| 3574 | + |
| 3575 | +#define PCIE_VDM_DR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x34) |
| 3576 | + |
| 3577 | +/* Vendor-Defined Message Requester ID Register */ |
| 3578 | +#define PCIE_VDM_RID(X) (PCIE_APP_PORT_TO_BASE (X) + 0x38) |
| 3579 | +#define PCIE_VDM_RID_VENROR_MSG_REQ_ID 0x0000FFFF |
| 3580 | +#define PCIE_VDM_RID_VDMRID_S 0 |
| 3581 | + |
| 3582 | +/* ASPM Control Register */ |
| 3583 | +#define PCIE_ASPM_CR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x40) |
| 3584 | +#define PCIE_ASPM_CR_HOT_RST 0x00000001 /* Hot Reset Request to the downstream device */ |
| 3585 | +#define PCIE_ASPM_CR_REQ_EXIT_L1 0x00000002 /* Request to Exit L1 */ |
| 3586 | +#define PCIE_ASPM_CR_REQ_ENTER_L1 0x00000004 /* Request to Enter L1 */ |
| 3587 | + |
| 3588 | +/* Vendor Message DW0 Register */ |
| 3589 | +#define PCIE_VM_MSG_DW0(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x50) |
| 3590 | +#define PCIE_VM_MSG_DW0_TYPE 0x0000001F /* Message type */ |
| 3591 | +#define PCIE_VM_MSG_DW0_TYPE_S 0 |
| 3592 | +#define PCIE_VM_MSG_DW0_FORMAT 0x00000060 /* Format */ |
| 3593 | +#define PCIE_VM_MSG_DW0_FORMAT_S 5 |
| 3594 | +#define PCIE_VM_MSG_DW0_TC 0x00007000 /* Traffic Class */ |
| 3595 | +#define PCIE_VM_MSG_DW0_TC_S 12 |
| 3596 | +#define PCIE_VM_MSG_DW0_ATTR 0x000C0000 /* Atrributes */ |
| 3597 | +#define PCIE_VM_MSG_DW0_ATTR_S 18 |
| 3598 | +#define PCIE_VM_MSG_DW0_EP_TLP 0x00100000 /* Poisoned TLP */ |
| 3599 | +#define PCIE_VM_MSG_DW0_TD 0x00200000 /* TLP Digest */ |
| 3600 | +#define PCIE_VM_MSG_DW0_LEN 0xFFC00000 /* Length */ |
| 3601 | +#define PCIE_VM_MSG_DW0_LEN_S 22 |
| 3602 | + |
| 3603 | +/* Format Definition */ |
| 3604 | +enum { |
| 3605 | + PCIE_VM_MSG_FORMAT_00 = 0, /* 3DW Hdr, no data*/ |
| 3606 | + PCIE_VM_MSG_FORMAT_01, /* 4DW Hdr, no data */ |
| 3607 | + PCIE_VM_MSG_FORMAT_10, /* 3DW Hdr, with data */ |
| 3608 | + PCIE_VM_MSG_FORMAT_11, /* 4DW Hdr, with data */ |
| 3609 | +}; |
| 3610 | + |
| 3611 | +/* Traffic Class Definition */ |
| 3612 | +enum { |
| 3613 | + PCIE_VM_MSG_TC0 = 0, |
| 3614 | + PCIE_VM_MSG_TC1, |
| 3615 | + PCIE_VM_MSG_TC2, |
| 3616 | + PCIE_VM_MSG_TC3, |
| 3617 | + PCIE_VM_MSG_TC4, |
| 3618 | + PCIE_VM_MSG_TC5, |
| 3619 | + PCIE_VM_MSG_TC6, |
| 3620 | + PCIE_VM_MSG_TC7, |
| 3621 | +}; |
| 3622 | + |
| 3623 | +/* Attributes Definition */ |
| 3624 | +enum { |
| 3625 | + PCIE_VM_MSG_ATTR_00 = 0, /* RO and No Snoop cleared */ |
| 3626 | + PCIE_VM_MSG_ATTR_01, /* RO cleared , No Snoop set */ |
| 3627 | + PCIE_VM_MSG_ATTR_10, /* RO set, No Snoop cleared*/ |
| 3628 | + PCIE_VM_MSG_ATTR_11, /* RO and No Snoop set */ |
| 3629 | +}; |
| 3630 | + |
| 3631 | +/* Payload Size Definition */ |
| 3632 | +#define PCIE_VM_MSG_LEN_MIN 0 |
| 3633 | +#define PCIE_VM_MSG_LEN_MAX 1024 |
| 3634 | + |
| 3635 | +/* Vendor Message DW1 Register */ |
| 3636 | +#define PCIE_VM_MSG_DW1(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x54) |
| 3637 | +#define PCIE_VM_MSG_DW1_FUNC_NUM 0x00000070 /* Function Number */ |
| 3638 | +#define PCIE_VM_MSG_DW1_FUNC_NUM_S 8 |
| 3639 | +#define PCIE_VM_MSG_DW1_CODE 0x00FF0000 /* Message Code */ |
| 3640 | +#define PCIE_VM_MSG_DW1_CODE_S 16 |
| 3641 | +#define PCIE_VM_MSG_DW1_TAG 0xFF000000 /* Tag */ |
| 3642 | +#define PCIE_VM_MSG_DW1_TAG_S 24 |
| 3643 | + |
| 3644 | +#define PCIE_VM_MSG_DW2(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x58) |
| 3645 | +#define PCIE_VM_MSG_DW3(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x5C) |
| 3646 | + |
| 3647 | +/* Vendor Message Request Register */ |
| 3648 | +#define PCIE_VM_MSG_REQR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x60) |
| 3649 | +#define PCIE_VM_MSG_REQR_REQ 0x00000001 /* Vendor Message Request */ |
| 3650 | + |
| 3651 | + |
| 3652 | +/* AHB Slave Side Band Control Register */ |
| 3653 | +#define PCIE_AHB_SSB(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x70) |
| 3654 | +#define PCIE_AHB_SSB_REQ_BCM 0x00000001 /* Slave Reques BCM filed */ |
| 3655 | +#define PCIE_AHB_SSB_REQ_EP 0x00000002 /* Slave Reques EP filed */ |
| 3656 | +#define PCIE_AHB_SSB_REQ_TD 0x00000004 /* Slave Reques TD filed */ |
| 3657 | +#define PCIE_AHB_SSB_REQ_ATTR 0x00000018 /* Slave Reques Attribute number */ |
| 3658 | +#define PCIE_AHB_SSB_REQ_ATTR_S 3 |
| 3659 | +#define PCIE_AHB_SSB_REQ_TC 0x000000E0 /* Slave Request TC Field */ |
| 3660 | +#define PCIE_AHB_SSB_REQ_TC_S 5 |
| 3661 | + |
| 3662 | +/* AHB Master SideBand Ctrl Register */ |
| 3663 | +#define PCIE_AHB_MSB(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x74) |
| 3664 | +#define PCIE_AHB_MSB_RESP_ATTR 0x00000003 /* Master Response Attribute number */ |
| 3665 | +#define PCIE_AHB_MSB_RESP_ATTR_S 0 |
| 3666 | +#define PCIE_AHB_MSB_RESP_BAD_EOT 0x00000004 /* Master Response Badeot filed */ |
| 3667 | +#define PCIE_AHB_MSB_RESP_BCM 0x00000008 /* Master Response BCM filed */ |
| 3668 | +#define PCIE_AHB_MSB_RESP_EP 0x00000010 /* Master Response EP filed */ |
| 3669 | +#define PCIE_AHB_MSB_RESP_TD 0x00000020 /* Master Response TD filed */ |
| 3670 | +#define PCIE_AHB_MSB_RESP_FUN_NUM 0x000003C0 /* Master Response Function number */ |
| 3671 | +#define PCIE_AHB_MSB_RESP_FUN_NUM_S 6 |
| 3672 | + |
| 3673 | +/* AHB Control Register, fixed bus enumeration exception */ |
| 3674 | +#define PCIE_AHB_CTRL(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x78) |
| 3675 | +#define PCIE_AHB_CTRL_BUS_ERROR_SUPPRESS 0x00000001 |
| 3676 | + |
| 3677 | +/* Interrupt Enalbe Register */ |
| 3678 | +#define PCIE_IRNEN(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0xF4) |
| 3679 | +#define PCIE_IRNCR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0xF8) |
| 3680 | +#define PCIE_IRNICR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0xFC) |
| 3681 | + |
| 3682 | +/* PCIe interrupt enable/control/capture register definition */ |
| 3683 | +#define PCIE_IRN_AER_REPORT 0x00000001 /* AER Interrupt */ |
| 3684 | +#define PCIE_IRN_AER_MSIX 0x00000002 /* Advanced Error MSI-X Interrupt */ |
| 3685 | +#define PCIE_IRN_PME 0x00000004 /* PME Interrupt */ |
| 3686 | +#define PCIE_IRN_HOTPLUG 0x00000008 /* Hotplug Interrupt */ |
| 3687 | +#define PCIE_IRN_RX_VDM_MSG 0x00000010 /* Vendor-Defined Message Interrupt */ |
| 3688 | +#define PCIE_IRN_RX_CORRECTABLE_ERR_MSG 0x00000020 /* Correctable Error Message Interrupt */ |
| 3689 | +#define PCIE_IRN_RX_NON_FATAL_ERR_MSG 0x00000040 /* Non-fatal Error Message */ |
| 3690 | +#define PCIE_IRN_RX_FATAL_ERR_MSG 0x00000080 /* Fatal Error Message */ |
| 3691 | +#define PCIE_IRN_RX_PME_MSG 0x00000100 /* PME Message Interrupt */ |
| 3692 | +#define PCIE_IRN_RX_PME_TURNOFF_ACK 0x00000200 /* PME Turnoff Ack Message Interrupt */ |
| 3693 | +#define PCIE_IRN_AHB_BR_FATAL_ERR 0x00000400 /* AHB Fatal Error Interrupt */ |
| 3694 | +#define PCIE_IRN_LINK_AUTO_BW_STATUS 0x00000800 /* Link Auto Bandwidth Status Interrupt */ |
| 3695 | +#define PCIE_IRN_BW_MGT 0x00001000 /* Bandwidth Managment Interrupt */ |
| 3696 | +#define PCIE_IRN_INTA 0x00002000 /* INTA */ |
| 3697 | +#define PCIE_IRN_INTB 0x00004000 /* INTB */ |
| 3698 | +#define PCIE_IRN_INTC 0x00008000 /* INTC */ |
| 3699 | +#define PCIE_IRN_INTD 0x00010000 /* INTD */ |
| 3700 | +#define PCIE_IRN_WAKEUP 0x00020000 /* Wake up Interrupt */ |
| 3701 | + |
| 3702 | +#define PCIE_RC_CORE_COMBINED_INT (PCIE_IRN_AER_REPORT | PCIE_IRN_AER_MSIX | PCIE_IRN_PME | \ |
| 3703 | + PCIE_IRN_HOTPLUG | PCIE_IRN_RX_VDM_MSG | PCIE_IRN_RX_CORRECTABLE_ERR_MSG |\ |
| 3704 | + PCIE_IRN_RX_NON_FATAL_ERR_MSG | PCIE_IRN_RX_FATAL_ERR_MSG | \ |
| 3705 | + PCIE_IRN_RX_PME_MSG | PCIE_IRN_RX_PME_TURNOFF_ACK | PCIE_IRN_AHB_BR_FATAL_ERR | \ |
| 3706 | + PCIE_IRN_LINK_AUTO_BW_STATUS | PCIE_IRN_BW_MGT) |
| 3707 | +/* PCIe RC Configuration Register */ |
| 3708 | +#define PCIE_VDID(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x00) |
| 3709 | + |
| 3710 | +/* Bit definition from pci_reg.h */ |
| 3711 | +#define PCIE_PCICMDSTS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x04) |
| 3712 | +#define PCIE_CCRID(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x08) |
| 3713 | +#define PCIE_CLSLTHTBR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x0C) /* EP only */ |
| 3714 | +/* BAR0, BAR1,Only necessary if the bridges implements a device-specific register set or memory buffer */ |
| 3715 | +#define PCIE_BAR0(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x10) /* Not used*/ |
| 3716 | +#define PCIE_BAR1(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x14) /* Not used */ |
| 3717 | + |
| 3718 | +#define PCIE_BNR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x18) /* Mandatory */ |
| 3719 | +/* Bus Number Register bits */ |
| 3720 | +#define PCIE_BNR_PRIMARY_BUS_NUM 0x000000FF |
| 3721 | +#define PCIE_BNR_PRIMARY_BUS_NUM_S 0 |
| 3722 | +#define PCIE_PNR_SECONDARY_BUS_NUM 0x0000FF00 |
| 3723 | +#define PCIE_PNR_SECONDARY_BUS_NUM_S 8 |
| 3724 | +#define PCIE_PNR_SUB_BUS_NUM 0x00FF0000 |
| 3725 | +#define PCIE_PNR_SUB_BUS_NUM_S 16 |
| 3726 | + |
| 3727 | +/* IO Base/Limit Register bits */ |
| 3728 | +#define PCIE_IOBLSECS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x1C) /* RC only */ |
| 3729 | +#define PCIE_IOBLSECS_32BIT_IO_ADDR 0x00000001 |
| 3730 | +#define PCIE_IOBLSECS_IO_BASE_ADDR 0x000000F0 |
| 3731 | +#define PCIE_IOBLSECS_IO_BASE_ADDR_S 4 |
| 3732 | +#define PCIE_IOBLSECS_32BIT_IOLIMT 0x00000100 |
| 3733 | +#define PCIE_IOBLSECS_IO_LIMIT_ADDR 0x0000F000 |
| 3734 | +#define PCIE_IOBLSECS_IO_LIMIT_ADDR_S 12 |
| 3735 | + |
| 3736 | +/* Non-prefetchable Memory Base/Limit Register bit */ |
| 3737 | +#define PCIE_MBML(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x20) /* RC only */ |
| 3738 | +#define PCIE_MBML_MEM_BASE_ADDR 0x0000FFF0 |
| 3739 | +#define PCIE_MBML_MEM_BASE_ADDR_S 4 |
| 3740 | +#define PCIE_MBML_MEM_LIMIT_ADDR 0xFFF00000 |
| 3741 | +#define PCIE_MBML_MEM_LIMIT_ADDR_S 20 |
| 3742 | + |
| 3743 | +/* Prefetchable Memory Base/Limit Register bit */ |
| 3744 | +#define PCIE_PMBL(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x24) /* RC only */ |
| 3745 | +#define PCIE_PMBL_64BIT_ADDR 0x00000001 |
| 3746 | +#define PCIE_PMBL_UPPER_12BIT 0x0000FFF0 |
| 3747 | +#define PCIE_PMBL_UPPER_12BIT_S 4 |
| 3748 | +#define PCIE_PMBL_E64MA 0x00010000 |
| 3749 | +#define PCIE_PMBL_END_ADDR 0xFFF00000 |
| 3750 | +#define PCIE_PMBL_END_ADDR_S 20 |
| 3751 | +#define PCIE_PMBU32(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x28) /* RC only */ |
| 3752 | +#define PCIE_PMLU32(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x2C) /* RC only */ |
| 3753 | + |
| 3754 | +/* I/O Base/Limit Upper 16 bits register */ |
| 3755 | +#define PCIE_IO_BANDL(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x30) /* RC only */ |
| 3756 | +#define PCIE_IO_BANDL_UPPER_16BIT_IO_BASE 0x0000FFFF |
| 3757 | +#define PCIE_IO_BANDL_UPPER_16BIT_IO_BASE_S 0 |
| 3758 | +#define PCIE_IO_BANDL_UPPER_16BIT_IO_LIMIT 0xFFFF0000 |
| 3759 | +#define PCIE_IO_BANDL_UPPER_16BIT_IO_LIMIT_S 16 |
| 3760 | + |
| 3761 | +#define PCIE_CPR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x34) |
| 3762 | +#define PCIE_EBBAR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x38) |
| 3763 | + |
| 3764 | +/* Interrupt and Secondary Bridge Control Register */ |
| 3765 | +#define PCIE_INTRBCTRL(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x3C) |
| 3766 | + |
| 3767 | +#define PCIE_INTRBCTRL_INT_LINE 0x000000FF |
| 3768 | +#define PCIE_INTRBCTRL_INT_LINE_S 0 |
| 3769 | +#define PCIE_INTRBCTRL_INT_PIN 0x0000FF00 |
| 3770 | +#define PCIE_INTRBCTRL_INT_PIN_S 8 |
| 3771 | +#define PCIE_INTRBCTRL_PARITY_ERR_RESP_ENABLE 0x00010000 /* #PERR */ |
| 3772 | +#define PCIE_INTRBCTRL_SERR_ENABLE 0x00020000 /* #SERR */ |
| 3773 | +#define PCIE_INTRBCTRL_ISA_ENABLE 0x00040000 /* ISA enable, IO 64KB only */ |
| 3774 | +#define PCIE_INTRBCTRL_VGA_ENABLE 0x00080000 /* VGA enable */ |
| 3775 | +#define PCIE_INTRBCTRL_VGA_16BIT_DECODE 0x00100000 /* VGA 16bit decode */ |
| 3776 | +#define PCIE_INTRBCTRL_RST_SECONDARY_BUS 0x00400000 /* Secondary bus rest, hot rest, 1ms */ |
| 3777 | +/* Others are read only */ |
| 3778 | +enum { |
| 3779 | + PCIE_INTRBCTRL_INT_NON = 0, |
| 3780 | + PCIE_INTRBCTRL_INTA, |
| 3781 | + PCIE_INTRBCTRL_INTB, |
| 3782 | + PCIE_INTRBCTRL_INTC, |
| 3783 | + PCIE_INTRBCTRL_INTD, |
| 3784 | +}; |
| 3785 | + |
| 3786 | +#define PCIE_PM_CAPR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x40) |
| 3787 | + |
| 3788 | +/* Power Management Control and Status Register */ |
| 3789 | +#define PCIE_PM_CSR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x44) |
| 3790 | + |
| 3791 | +#define PCIE_PM_CSR_POWER_STATE 0x00000003 /* Power State */ |
| 3792 | +#define PCIE_PM_CSR_POWER_STATE_S 0 |
| 3793 | +#define PCIE_PM_CSR_SW_RST 0x00000008 /* Soft Reset Enabled */ |
| 3794 | +#define PCIE_PM_CSR_PME_ENABLE 0x00000100 /* PME Enable */ |
| 3795 | +#define PCIE_PM_CSR_PME_STATUS 0x00008000 /* PME status */ |
| 3796 | + |
| 3797 | +/* MSI Capability Register for EP */ |
| 3798 | +#define PCIE_MCAPR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x50) |
| 3799 | + |
| 3800 | +#define PCIE_MCAPR_MSI_CAP_ID 0x000000FF /* MSI Capability ID */ |
| 3801 | +#define PCIE_MCAPR_MSI_CAP_ID_S 0 |
| 3802 | +#define PCIE_MCAPR_MSI_NEXT_CAP_PTR 0x0000FF00 /* Next Capability Pointer */ |
| 3803 | +#define PCIE_MCAPR_MSI_NEXT_CAP_PTR_S 8 |
| 3804 | +#define PCIE_MCAPR_MSI_ENABLE 0x00010000 /* MSI Enable */ |
| 3805 | +#define PCIE_MCAPR_MULTI_MSG_CAP 0x000E0000 /* Multiple Message Capable */ |
| 3806 | +#define PCIE_MCAPR_MULTI_MSG_CAP_S 17 |
| 3807 | +#define PCIE_MCAPR_MULTI_MSG_ENABLE 0x00700000 /* Multiple Message Enable */ |
| 3808 | +#define PCIE_MCAPR_MULTI_MSG_ENABLE_S 20 |
| 3809 | +#define PCIE_MCAPR_ADDR64_CAP 0X00800000 /* 64-bit Address Capable */ |
| 3810 | + |
| 3811 | +/* MSI Message Address Register */ |
| 3812 | +#define PCIE_MA(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x54) |
| 3813 | + |
| 3814 | +#define PCIE_MA_ADDR_MASK 0xFFFFFFFC /* Message Address */ |
| 3815 | + |
| 3816 | +/* MSI Message Upper Address Register */ |
| 3817 | +#define PCIE_MUA(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x58) |
| 3818 | + |
| 3819 | +/* MSI Message Data Register */ |
| 3820 | +#define PCIE_MD(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x5C) |
| 3821 | + |
| 3822 | +#define PCIE_MD_DATA 0x0000FFFF /* Message Data */ |
| 3823 | +#define PCIE_MD_DATA_S 0 |
| 3824 | + |
| 3825 | +/* PCI Express Capability Register */ |
| 3826 | +#define PCIE_XCAP(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x70) |
| 3827 | + |
| 3828 | +#define PCIE_XCAP_ID 0x000000FF /* PCI Express Capability ID */ |
| 3829 | +#define PCIE_XCAP_ID_S 0 |
| 3830 | +#define PCIE_XCAP_NEXT_CAP 0x0000FF00 /* Next Capability Pointer */ |
| 3831 | +#define PCIE_XCAP_NEXT_CAP_S 8 |
| 3832 | +#define PCIE_XCAP_VER 0x000F0000 /* PCI Express Capability Version */ |
| 3833 | +#define PCIE_XCAP_VER_S 16 |
| 3834 | +#define PCIE_XCAP_DEV_PORT_TYPE 0x00F00000 /* Device Port Type */ |
| 3835 | +#define PCIE_XCAP_DEV_PORT_TYPE_S 20 |
| 3836 | +#define PCIE_XCAP_SLOT_IMPLEMENTED 0x01000000 /* Slot Implemented */ |
| 3837 | +#define PCIE_XCAP_MSG_INT_NUM 0x3E000000 /* Interrupt Message Number */ |
| 3838 | +#define PCIE_XCAP_MSG_INT_NUM_S 25 |
| 3839 | + |
| 3840 | +/* Device Capability Register */ |
| 3841 | +#define PCIE_DCAP(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x74) |
| 3842 | + |
| 3843 | +#define PCIE_DCAP_MAX_PAYLOAD_SIZE 0x00000007 /* Max Payload size */ |
| 3844 | +#define PCIE_DCAP_MAX_PAYLOAD_SIZE_S 0 |
| 3845 | +#define PCIE_DCAP_PHANTOM_FUNC 0x00000018 /* Phanton Function, not supported */ |
| 3846 | +#define PCIE_DCAP_PHANTOM_FUNC_S 3 |
| 3847 | +#define PCIE_DCAP_EXT_TAG 0x00000020 /* Extended Tag Field */ |
| 3848 | +#define PCIE_DCAP_EP_L0S_LATENCY 0x000001C0 /* EP L0s latency only */ |
| 3849 | +#define PCIE_DCAP_EP_L0S_LATENCY_S 6 |
| 3850 | +#define PCIE_DCAP_EP_L1_LATENCY 0x00000E00 /* EP L1 latency only */ |
| 3851 | +#define PCIE_DCAP_EP_L1_LATENCY_S 9 |
| 3852 | +#define PCIE_DCAP_ROLE_BASE_ERR_REPORT 0x00008000 /* Role Based ERR */ |
| 3853 | + |
| 3854 | +/* Maximum payload size supported */ |
| 3855 | +enum { |
| 3856 | + PCIE_MAX_PAYLOAD_128 = 0, |
| 3857 | + PCIE_MAX_PAYLOAD_256, |
| 3858 | + PCIE_MAX_PAYLOAD_512, |
| 3859 | + PCIE_MAX_PAYLOAD_1024, |
| 3860 | + PCIE_MAX_PAYLOAD_2048, |
| 3861 | + PCIE_MAX_PAYLOAD_4096, |
| 3862 | +}; |
| 3863 | + |
| 3864 | +/* Device Control and Status Register */ |
| 3865 | +#define PCIE_DCTLSTS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x78) |
| 3866 | + |
| 3867 | +#define PCIE_DCTLSTS_CORRECTABLE_ERR_EN 0x00000001 /* COR-ERR */ |
| 3868 | +#define PCIE_DCTLSTS_NONFATAL_ERR_EN 0x00000002 /* Non-fatal ERR */ |
| 3869 | +#define PCIE_DCTLSTS_FATAL_ERR_EN 0x00000004 /* Fatal ERR */ |
| 3870 | +#define PCIE_DCTLSYS_UR_REQ_EN 0x00000008 /* UR ERR */ |
| 3871 | +#define PCIE_DCTLSTS_RELAXED_ORDERING_EN 0x00000010 /* Enable relaxing ordering */ |
| 3872 | +#define PCIE_DCTLSTS_MAX_PAYLOAD_SIZE 0x000000E0 /* Max payload mask */ |
| 3873 | +#define PCIE_DCTLSTS_MAX_PAYLOAD_SIZE_S 5 |
| 3874 | +#define PCIE_DCTLSTS_EXT_TAG_EN 0x00000100 /* Extended tag field */ |
| 3875 | +#define PCIE_DCTLSTS_PHANTOM_FUNC_EN 0x00000200 /* Phantom Function Enable */ |
| 3876 | +#define PCIE_DCTLSTS_AUX_PM_EN 0x00000400 /* AUX Power PM Enable */ |
| 3877 | +#define PCIE_DCTLSTS_NO_SNOOP_EN 0x00000800 /* Enable no snoop, except root port*/ |
| 3878 | +#define PCIE_DCTLSTS_MAX_READ_SIZE 0x00007000 /* Max Read Request size*/ |
| 3879 | +#define PCIE_DCTLSTS_MAX_READ_SIZE_S 12 |
| 3880 | +#define PCIE_DCTLSTS_CORRECTABLE_ERR 0x00010000 /* COR-ERR Detected */ |
| 3881 | +#define PCIE_DCTLSTS_NONFATAL_ERR 0x00020000 /* Non-Fatal ERR Detected */ |
| 3882 | +#define PCIE_DCTLSTS_FATAL_ER 0x00040000 /* Fatal ERR Detected */ |
| 3883 | +#define PCIE_DCTLSTS_UNSUPPORTED_REQ 0x00080000 /* UR Detected */ |
| 3884 | +#define PCIE_DCTLSTS_AUX_POWER 0x00100000 /* Aux Power Detected */ |
| 3885 | +#define PCIE_DCTLSTS_TRANSACT_PENDING 0x00200000 /* Transaction pending */ |
| 3886 | + |
| 3887 | +#define PCIE_DCTLSTS_ERR_EN (PCIE_DCTLSTS_CORRECTABLE_ERR_EN | \ |
| 3888 | + PCIE_DCTLSTS_NONFATAL_ERR_EN | PCIE_DCTLSTS_FATAL_ERR_EN | \ |
| 3889 | + PCIE_DCTLSYS_UR_REQ_EN) |
| 3890 | + |
| 3891 | +/* Link Capability Register */ |
| 3892 | +#define PCIE_LCAP(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x7C) |
| 3893 | +#define PCIE_LCAP_MAX_LINK_SPEED 0x0000000F /* Max link speed, 0x1 by default */ |
| 3894 | +#define PCIE_LCAP_MAX_LINK_SPEED_S 0 |
| 3895 | +#define PCIE_LCAP_MAX_LENGTH_WIDTH 0x000003F0 /* Maxium Length Width */ |
| 3896 | +#define PCIE_LCAP_MAX_LENGTH_WIDTH_S 4 |
| 3897 | +#define PCIE_LCAP_ASPM_LEVEL 0x00000C00 /* Active State Link PM Support */ |
| 3898 | +#define PCIE_LCAP_ASPM_LEVEL_S 10 |
| 3899 | +#define PCIE_LCAP_L0S_EIXT_LATENCY 0x00007000 /* L0s Exit Latency */ |
| 3900 | +#define PCIE_LCAP_L0S_EIXT_LATENCY_S 12 |
| 3901 | +#define PCIE_LCAP_L1_EXIT_LATENCY 0x00038000 /* L1 Exit Latency */ |
| 3902 | +#define PCIE_LCAP_L1_EXIT_LATENCY_S 15 |
| 3903 | +#define PCIE_LCAP_CLK_PM 0x00040000 /* Clock Power Management */ |
| 3904 | +#define PCIE_LCAP_SDER 0x00080000 /* Surprise Down Error Reporting */ |
| 3905 | +#define PCIE_LCAP_DLL_ACTIVE_REPROT 0x00100000 /* Data Link Layer Active Reporting Capable */ |
| 3906 | +#define PCIE_LCAP_PORT_NUM 0xFF0000000 /* Port number */ |
| 3907 | +#define PCIE_LCAP_PORT_NUM_S 24 |
| 3908 | + |
| 3909 | +/* Maximum Length width definition */ |
| 3910 | +#define PCIE_MAX_LENGTH_WIDTH_RES 0x00 |
| 3911 | +#define PCIE_MAX_LENGTH_WIDTH_X1 0x01 /* Default */ |
| 3912 | +#define PCIE_MAX_LENGTH_WIDTH_X2 0x02 |
| 3913 | +#define PCIE_MAX_LENGTH_WIDTH_X4 0x04 |
| 3914 | +#define PCIE_MAX_LENGTH_WIDTH_X8 0x08 |
| 3915 | +#define PCIE_MAX_LENGTH_WIDTH_X12 0x0C |
| 3916 | +#define PCIE_MAX_LENGTH_WIDTH_X16 0x10 |
| 3917 | +#define PCIE_MAX_LENGTH_WIDTH_X32 0x20 |
| 3918 | + |
| 3919 | +/* Active State Link PM definition */ |
| 3920 | +enum { |
| 3921 | + PCIE_ASPM_RES0 = 0, |
| 3922 | + PCIE_ASPM_L0S_ENTRY_SUPPORT, /* L0s */ |
| 3923 | + PCIE_ASPM_RES1, |
| 3924 | + PCIE_ASPM_L0S_L1_ENTRY_SUPPORT, /* L0s and L1, default */ |
| 3925 | +}; |
| 3926 | + |
| 3927 | +/* L0s Exit Latency definition */ |
| 3928 | +enum { |
| 3929 | + PCIE_L0S_EIXT_LATENCY_L64NS = 0, /* < 64 ns */ |
| 3930 | + PCIE_L0S_EIXT_LATENCY_B64A128, /* > 64 ns < 128 ns */ |
| 3931 | + PCIE_L0S_EIXT_LATENCY_B128A256, /* > 128 ns < 256 ns */ |
| 3932 | + PCIE_L0S_EIXT_LATENCY_B256A512, /* > 256 ns < 512 ns */ |
| 3933 | + PCIE_L0S_EIXT_LATENCY_B512TO1U, /* > 512 ns < 1 us */ |
| 3934 | + PCIE_L0S_EIXT_LATENCY_B1A2U, /* > 1 us < 2 us */ |
| 3935 | + PCIE_L0S_EIXT_LATENCY_B2A4U, /* > 2 us < 4 us */ |
| 3936 | + PCIE_L0S_EIXT_LATENCY_M4US, /* > 4 us */ |
| 3937 | +}; |
| 3938 | + |
| 3939 | +/* L1 Exit Latency definition */ |
| 3940 | +enum { |
| 3941 | + PCIE_L1_EXIT_LATENCY_L1US = 0, /* < 1 us */ |
| 3942 | + PCIE_L1_EXIT_LATENCY_B1A2, /* > 1 us < 2 us */ |
| 3943 | + PCIE_L1_EXIT_LATENCY_B2A4, /* > 2 us < 4 us */ |
| 3944 | + PCIE_L1_EXIT_LATENCY_B4A8, /* > 4 us < 8 us */ |
| 3945 | + PCIE_L1_EXIT_LATENCY_B8A16, /* > 8 us < 16 us */ |
| 3946 | + PCIE_L1_EXIT_LATENCY_B16A32, /* > 16 us < 32 us */ |
| 3947 | + PCIE_L1_EXIT_LATENCY_B32A64, /* > 32 us < 64 us */ |
| 3948 | + PCIE_L1_EXIT_LATENCY_M64US, /* > 64 us */ |
| 3949 | +}; |
| 3950 | + |
| 3951 | +/* Link Control and Status Register */ |
| 3952 | +#define PCIE_LCTLSTS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x80) |
| 3953 | +#define PCIE_LCTLSTS_ASPM_ENABLE 0x00000003 /* Active State Link PM Control */ |
| 3954 | +#define PCIE_LCTLSTS_ASPM_ENABLE_S 0 |
| 3955 | +#define PCIE_LCTLSTS_RCB128 0x00000008 /* Read Completion Boundary 128*/ |
| 3956 | +#define PCIE_LCTLSTS_LINK_DISABLE 0x00000010 /* Link Disable */ |
| 3957 | +#define PCIE_LCTLSTS_RETRIAN_LINK 0x00000020 /* Retrain Link */ |
| 3958 | +#define PCIE_LCTLSTS_COM_CLK_CFG 0x00000040 /* Common Clock Configuration */ |
| 3959 | +#define PCIE_LCTLSTS_EXT_SYNC 0x00000080 /* Extended Synch */ |
| 3960 | +#define PCIE_LCTLSTS_CLK_PM_EN 0x00000100 /* Enable Clock Powerm Management */ |
| 3961 | +#define PCIE_LCTLSTS_LINK_SPEED 0x000F0000 /* Link Speed */ |
| 3962 | +#define PCIE_LCTLSTS_LINK_SPEED_S 16 |
| 3963 | +#define PCIE_LCTLSTS_NEGOTIATED_LINK_WIDTH 0x03F00000 /* Negotiated Link Width */ |
| 3964 | +#define PCIE_LCTLSTS_NEGOTIATED_LINK_WIDTH_S 20 |
| 3965 | +#define PCIE_LCTLSTS_RETRAIN_PENDING 0x08000000 /* Link training is ongoing */ |
| 3966 | +#define PCIE_LCTLSTS_SLOT_CLK_CFG 0x10000000 /* Slot Clock Configuration */ |
| 3967 | +#define PCIE_LCTLSTS_DLL_ACTIVE 0x20000000 /* Data Link Layer Active */ |
| 3968 | + |
| 3969 | +/* Slot Capabilities Register */ |
| 3970 | +#define PCIE_SLCAP(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x84) |
| 3971 | + |
| 3972 | +/* Slot Capabilities */ |
| 3973 | +#define PCIE_SLCTLSTS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x88) |
| 3974 | + |
| 3975 | +/* Root Control and Capability Register */ |
| 3976 | +#define PCIE_RCTLCAP(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x8C) |
| 3977 | +#define PCIE_RCTLCAP_SERR_ON_CORRECTABLE_ERR 0x00000001 /* #SERR on COR-ERR */ |
| 3978 | +#define PCIE_RCTLCAP_SERR_ON_NONFATAL_ERR 0x00000002 /* #SERR on Non-Fatal ERR */ |
| 3979 | +#define PCIE_RCTLCAP_SERR_ON_FATAL_ERR 0x00000004 /* #SERR on Fatal ERR */ |
| 3980 | +#define PCIE_RCTLCAP_PME_INT_EN 0x00000008 /* PME Interrupt Enable */ |
| 3981 | +#define PCIE_RCTLCAP_SERR_ENABLE (PCIE_RCTLCAP_SERR_ON_CORRECTABLE_ERR | \ |
| 3982 | + PCIE_RCTLCAP_SERR_ON_NONFATAL_ERR | PCIE_RCTLCAP_SERR_ON_FATAL_ERR) |
| 3983 | +/* Root Status Register */ |
| 3984 | +#define PCIE_RSTS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x90) |
| 3985 | +#define PCIE_RSTS_PME_REQ_ID 0x0000FFFF /* PME Request ID */ |
| 3986 | +#define PCIE_RSTS_PME_REQ_ID_S 0 |
| 3987 | +#define PCIE_RSTS_PME_STATUS 0x00010000 /* PME Status */ |
| 3988 | +#define PCIE_RSTS_PME_PENDING 0x00020000 /* PME Pending */ |
| 3989 | + |
| 3990 | +/* PCI Express Enhanced Capability Header */ |
| 3991 | +#define PCIE_ENHANCED_CAP(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x100) |
| 3992 | +#define PCIE_ENHANCED_CAP_ID 0x0000FFFF /* PCI Express Extended Capability ID */ |
| 3993 | +#define PCIE_ENHANCED_CAP_ID_S 0 |
| 3994 | +#define PCIE_ENHANCED_CAP_VER 0x000F0000 /* Capability Version */ |
| 3995 | +#define PCIE_ENHANCED_CAP_VER_S 16 |
| 3996 | +#define PCIE_ENHANCED_CAP_NEXT_OFFSET 0xFFF00000 /* Next Capability Offset */ |
| 3997 | +#define PCIE_ENHANCED_CAP_NEXT_OFFSET_S 20 |
| 3998 | + |
| 3999 | +/* Uncorrectable Error Status Register */ |
| 4000 | +#define PCIE_UES_R(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x104) |
| 4001 | +#define PCIE_DATA_LINK_PROTOCOL_ERR 0x00000010 /* Data Link Protocol Error Status */ |
| 4002 | +#define PCIE_SURPRISE_DOWN_ERROR 0x00000020 /* Surprise Down Error Status */ |
| 4003 | +#define PCIE_POISONED_TLP 0x00001000 /* Poisoned TLP Status */ |
| 4004 | +#define PCIE_FC_PROTOCOL_ERR 0x00002000 /* Flow Control Protocol Error Status */ |
| 4005 | +#define PCIE_COMPLETION_TIMEOUT 0x00004000 /* Completion Timeout Status */ |
| 4006 | +#define PCIE_COMPLETOR_ABORT 0x00008000 /* Completer Abort Error */ |
| 4007 | +#define PCIE_UNEXPECTED_COMPLETION 0x00010000 /* Unexpected Completion Status */ |
| 4008 | +#define PCIE_RECEIVER_OVERFLOW 0x00020000 /* Receive Overflow Status */ |
| 4009 | +#define PCIE_MALFORNED_TLP 0x00040000 /* Malformed TLP Stauts */ |
| 4010 | +#define PCIE_ECRC_ERR 0x00080000 /* ECRC Error Stauts */ |
| 4011 | +#define PCIE_UR_REQ 0x00100000 /* Unsupported Request Error Status */ |
| 4012 | +#define PCIE_ALL_UNCORRECTABLE_ERR (PCIE_DATA_LINK_PROTOCOL_ERR | PCIE_SURPRISE_DOWN_ERROR | \ |
| 4013 | + PCIE_POISONED_TLP | PCIE_FC_PROTOCOL_ERR | PCIE_COMPLETION_TIMEOUT | \ |
| 4014 | + PCIE_COMPLETOR_ABORT | PCIE_UNEXPECTED_COMPLETION | PCIE_RECEIVER_OVERFLOW |\ |
| 4015 | + PCIE_MALFORNED_TLP | PCIE_ECRC_ERR | PCIE_UR_REQ) |
| 4016 | + |
| 4017 | +/* Uncorrectable Error Mask Register, Mask means no report */ |
| 4018 | +#define PCIE_UEMR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x108) |
| 4019 | + |
| 4020 | +/* Uncorrectable Error Severity Register */ |
| 4021 | +#define PCIE_UESR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x10C) |
| 4022 | + |
| 4023 | +/* Correctable Error Status Register */ |
| 4024 | +#define PCIE_CESR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x110) |
| 4025 | +#define PCIE_RX_ERR 0x00000001 /* Receive Error Status */ |
| 4026 | +#define PCIE_BAD_TLP 0x00000040 /* Bad TLP Status */ |
| 4027 | +#define PCIE_BAD_DLLP 0x00000080 /* Bad DLLP Status */ |
| 4028 | +#define PCIE_REPLAY_NUM_ROLLOVER 0x00000100 /* Replay Number Rollover Status */ |
| 4029 | +#define PCIE_REPLAY_TIMER_TIMEOUT_ERR 0x00001000 /* Reply Timer Timeout Status */ |
| 4030 | +#define PCIE_ADVISORY_NONFTAL_ERR 0x00002000 /* Advisory Non-Fatal Error Status */ |
| 4031 | +#define PCIE_CORRECTABLE_ERR (PCIE_RX_ERR | PCIE_BAD_TLP | PCIE_BAD_DLLP | PCIE_REPLAY_NUM_ROLLOVER |\ |
| 4032 | + PCIE_REPLAY_TIMER_TIMEOUT_ERR | PCIE_ADVISORY_NONFTAL_ERR) |
| 4033 | + |
| 4034 | +/* Correctable Error Mask Register */ |
| 4035 | +#define PCIE_CEMR(X) (volatile u32*)(PCIE_RC_CFG_BASE + 0x114) |
| 4036 | + |
| 4037 | +/* Advanced Error Capabilities and Control Register */ |
| 4038 | +#define PCIE_AECCR(X) (volatile u32*)(PCIE_RC_CFG_BASE + 0x118) |
| 4039 | +#define PCIE_AECCR_FIRST_ERR_PTR 0x0000001F /* First Error Pointer */ |
| 4040 | +#define PCIE_AECCR_FIRST_ERR_PTR_S 0 |
| 4041 | +#define PCIE_AECCR_ECRC_GEN_CAP 0x00000020 /* ECRC Generation Capable */ |
| 4042 | +#define PCIE_AECCR_ECRC_GEN_EN 0x00000040 /* ECRC Generation Enable */ |
| 4043 | +#define PCIE_AECCR_ECRC_CHECK_CAP 0x00000080 /* ECRC Check Capable */ |
| 4044 | +#define PCIE_AECCR_ECRC_CHECK_EN 0x00000100 /* ECRC Check Enable */ |
| 4045 | + |
| 4046 | +/* Header Log Register 1 */ |
| 4047 | +#define PCIE_HLR1(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x11C) |
| 4048 | + |
| 4049 | +/* Header Log Register 2 */ |
| 4050 | +#define PCIE_HLR2(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x120) |
| 4051 | + |
| 4052 | +/* Header Log Register 3 */ |
| 4053 | +#define PCIE_HLR3(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x124) |
| 4054 | + |
| 4055 | +/* Header Log Register 4 */ |
| 4056 | +#define PCIE_HLR4(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x128) |
| 4057 | + |
| 4058 | +/* Root Error Command Register */ |
| 4059 | +#define PCIE_RECR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x12C) |
| 4060 | +#define PCIE_RECR_CORRECTABLE_ERR_REPORT_EN 0x00000001 /* COR-ERR */ |
| 4061 | +#define PCIE_RECR_NONFATAL_ERR_REPORT_EN 0x00000002 /* Non-Fatal ERR */ |
| 4062 | +#define PCIE_RECR_FATAL_ERR_REPORT_EN 0x00000004 /* Fatal ERR */ |
| 4063 | +#define PCIE_RECR_ERR_REPORT_EN (PCIE_RECR_CORRECTABLE_ERR_REPORT_EN | \ |
| 4064 | + PCIE_RECR_NONFATAL_ERR_REPORT_EN | PCIE_RECR_FATAL_ERR_REPORT_EN) |
| 4065 | + |
| 4066 | +/* Root Error Status Register */ |
| 4067 | +#define PCIE_RESR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x130) |
| 4068 | +#define PCIE_RESR_CORRECTABLE_ERR 0x00000001 /* COR-ERR Receveid */ |
| 4069 | +#define PCIE_RESR_MULTI_CORRECTABLE_ERR 0x00000002 /* Multiple COR-ERR Received */ |
| 4070 | +#define PCIE_RESR_FATAL_NOFATAL_ERR 0x00000004 /* ERR Fatal/Non-Fatal Received */ |
| 4071 | +#define PCIE_RESR_MULTI_FATAL_NOFATAL_ERR 0x00000008 /* Multiple ERR Fatal/Non-Fatal Received */ |
| 4072 | +#define PCIE_RESR_FIRST_UNCORRECTABLE_FATAL_ERR 0x00000010 /* First UN-COR Fatal */ |
| 4073 | +#define PCIR_RESR_NON_FATAL_ERR 0x00000020 /* Non-Fatal Error Message Received */ |
| 4074 | +#define PCIE_RESR_FATAL_ERR 0x00000040 /* Fatal Message Received */ |
| 4075 | +#define PCIE_RESR_AER_INT_MSG_NUM 0xF8000000 /* Advanced Error Interrupt Message Number */ |
| 4076 | +#define PCIE_RESR_AER_INT_MSG_NUM_S 27 |
| 4077 | + |
| 4078 | +/* Error Source Indentification Register */ |
| 4079 | +#define PCIE_ESIR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x134) |
| 4080 | +#define PCIE_ESIR_CORRECTABLE_ERR_SRC_ID 0x0000FFFF |
| 4081 | +#define PCIE_ESIR_CORRECTABLE_ERR_SRC_ID_S 0 |
| 4082 | +#define PCIE_ESIR_FATAL_NON_FATAL_SRC_ID 0xFFFF0000 |
| 4083 | +#define PCIE_ESIR_FATAL_NON_FATAL_SRC_ID_S 16 |
| 4084 | + |
| 4085 | +/* VC Enhanced Capability Header */ |
| 4086 | +#define PCIE_VC_ECH(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x140) |
| 4087 | + |
| 4088 | +/* Port VC Capability Register */ |
| 4089 | +#define PCIE_PVC1(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x144) |
| 4090 | +#define PCIE_PVC1_EXT_VC_CNT 0x00000007 /* Extended VC Count */ |
| 4091 | +#define PCIE_PVC1_EXT_VC_CNT_S 0 |
| 4092 | +#define PCIE_PVC1_LOW_PRI_EXT_VC_CNT 0x00000070 /* Low Priority Extended VC Count */ |
| 4093 | +#define PCIE_PVC1_LOW_PRI_EXT_VC_CNT_S 4 |
| 4094 | +#define PCIE_PVC1_REF_CLK 0x00000300 /* Reference Clock */ |
| 4095 | +#define PCIE_PVC1_REF_CLK_S 8 |
| 4096 | +#define PCIE_PVC1_PORT_ARB_TAB_ENTRY_SIZE 0x00000C00 /* Port Arbitration Table Entry Size */ |
| 4097 | +#define PCIE_PVC1_PORT_ARB_TAB_ENTRY_SIZE_S 10 |
| 4098 | + |
| 4099 | +/* Extended Virtual Channel Count Defintion */ |
| 4100 | +#define PCIE_EXT_VC_CNT_MIN 0 |
| 4101 | +#define PCIE_EXT_VC_CNT_MAX 7 |
| 4102 | + |
| 4103 | +/* Port Arbitration Table Entry Size Definition */ |
| 4104 | +enum { |
| 4105 | + PCIE_PORT_ARB_TAB_ENTRY_SIZE_S1BIT = 0, |
| 4106 | + PCIE_PORT_ARB_TAB_ENTRY_SIZE_S2BIT, |
| 4107 | + PCIE_PORT_ARB_TAB_ENTRY_SIZE_S4BIT, |
| 4108 | + PCIE_PORT_ARB_TAB_ENTRY_SIZE_S8BIT, |
| 4109 | +}; |
| 4110 | + |
| 4111 | +/* Port VC Capability Register 2 */ |
| 4112 | +#define PCIE_PVC2(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x148) |
| 4113 | +#define PCIE_PVC2_VC_ARB_16P_FIXED_WRR 0x00000001 /* HW Fixed arbitration, 16 phase WRR */ |
| 4114 | +#define PCIE_PVC2_VC_ARB_32P_WRR 0x00000002 /* 32 phase WRR */ |
| 4115 | +#define PCIE_PVC2_VC_ARB_64P_WRR 0x00000004 /* 64 phase WRR */ |
| 4116 | +#define PCIE_PVC2_VC_ARB_128P_WRR 0x00000008 /* 128 phase WRR */ |
| 4117 | +#define PCIE_PVC2_VC_ARB_WRR 0x0000000F |
| 4118 | +#define PCIE_PVC2_VC_ARB_TAB_OFFSET 0xFF000000 /* VC arbitration table offset, not support */ |
| 4119 | +#define PCIE_PVC2_VC_ARB_TAB_OFFSET_S 24 |
| 4120 | + |
| 4121 | +/* Port VC Control and Status Register */ |
| 4122 | +#define PCIE_PVCCRSR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x14C) |
| 4123 | +#define PCIE_PVCCRSR_LOAD_VC_ARB_TAB 0x00000001 /* Load VC Arbitration Table */ |
| 4124 | +#define PCIE_PVCCRSR_VC_ARB_SEL 0x0000000E /* VC Arbitration Select */ |
| 4125 | +#define PCIE_PVCCRSR_VC_ARB_SEL_S 1 |
| 4126 | +#define PCIE_PVCCRSR_VC_ARB_TAB_STATUS 0x00010000 /* Arbitration Status */ |
| 4127 | + |
| 4128 | +/* VC0 Resource Capability Register */ |
| 4129 | +#define PCIE_VC0_RC(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x150) |
| 4130 | +#define PCIE_VC0_RC_PORT_ARB_HW_FIXED 0x00000001 /* HW Fixed arbitration */ |
| 4131 | +#define PCIE_VC0_RC_PORT_ARB_32P_WRR 0x00000002 /* 32 phase WRR */ |
| 4132 | +#define PCIE_VC0_RC_PORT_ARB_64P_WRR 0x00000004 /* 64 phase WRR */ |
| 4133 | +#define PCIE_VC0_RC_PORT_ARB_128P_WRR 0x00000008 /* 128 phase WRR */ |
| 4134 | +#define PCIE_VC0_RC_PORT_ARB_TM_128P_WRR 0x00000010 /* Time-based 128 phase WRR */ |
| 4135 | +#define PCIE_VC0_RC_PORT_ARB_TM_256P_WRR 0x00000020 /* Time-based 256 phase WRR */ |
| 4136 | +#define PCIE_VC0_RC_PORT_ARB (PCIE_VC0_RC_PORT_ARB_HW_FIXED | PCIE_VC0_RC_PORT_ARB_32P_WRR |\ |
| 4137 | + PCIE_VC0_RC_PORT_ARB_64P_WRR | PCIE_VC0_RC_PORT_ARB_128P_WRR | \ |
| 4138 | + PCIE_VC0_RC_PORT_ARB_TM_128P_WRR | PCIE_VC0_RC_PORT_ARB_TM_256P_WRR) |
| 4139 | + |
| 4140 | +#define PCIE_VC0_RC_REJECT_SNOOP 0x00008000 /* Reject Snoop Transactioin */ |
| 4141 | +#define PCIE_VC0_RC_MAX_TIMESLOTS 0x007F0000 /* Maximum time Slots */ |
| 4142 | +#define PCIE_VC0_RC_MAX_TIMESLOTS_S 16 |
| 4143 | +#define PCIE_VC0_RC_PORT_ARB_TAB_OFFSET 0xFF000000 /* Port Arbitration Table Offset */ |
| 4144 | +#define PCIE_VC0_RC_PORT_ARB_TAB_OFFSET_S 24 |
| 4145 | + |
| 4146 | +/* VC0 Resource Control Register */ |
| 4147 | +#define PCIE_VC0_RC0(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x154) |
| 4148 | +#define PCIE_VC0_RC0_TVM0 0x00000001 /* TC0 and VC0 */ |
| 4149 | +#define PCIE_VC0_RC0_TVM1 0x00000002 /* TC1 and VC1 */ |
| 4150 | +#define PCIE_VC0_RC0_TVM2 0x00000004 /* TC2 and VC2 */ |
| 4151 | +#define PCIE_VC0_RC0_TVM3 0x00000008 /* TC3 and VC3 */ |
| 4152 | +#define PCIE_VC0_RC0_TVM4 0x00000010 /* TC4 and VC4 */ |
| 4153 | +#define PCIE_VC0_RC0_TVM5 0x00000020 /* TC5 and VC5 */ |
| 4154 | +#define PCIE_VC0_RC0_TVM6 0x00000040 /* TC6 and VC6 */ |
| 4155 | +#define PCIE_VC0_RC0_TVM7 0x00000080 /* TC7 and VC7 */ |
| 4156 | +#define PCIE_VC0_RC0_TC_VC 0x000000FF /* TC/VC mask */ |
| 4157 | + |
| 4158 | +#define PCIE_VC0_RC0_LOAD_PORT_ARB_TAB 0x00010000 /* Load Port Arbitration Table */ |
| 4159 | +#define PCIE_VC0_RC0_PORT_ARB_SEL 0x000E0000 /* Port Arbitration Select */ |
| 4160 | +#define PCIE_VC0_RC0_PORT_ARB_SEL_S 17 |
| 4161 | +#define PCIE_VC0_RC0_VC_ID 0x07000000 /* VC ID */ |
| 4162 | +#define PCIE_VC0_RC0_VC_ID_S 24 |
| 4163 | +#define PCIE_VC0_RC0_VC_EN 0x80000000 /* VC Enable */ |
| 4164 | + |
| 4165 | +/* VC0 Resource Status Register */ |
| 4166 | +#define PCIE_VC0_RSR0(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x158) |
| 4167 | +#define PCIE_VC0_RSR0_PORT_ARB_TAB_STATUS 0x00010000 /* Port Arbitration Table Status,not used */ |
| 4168 | +#define PCIE_VC0_RSR0_VC_NEG_PENDING 0x00020000 /* VC Negotiation Pending */ |
| 4169 | + |
| 4170 | +/* Ack Latency Timer and Replay Timer Register */ |
| 4171 | +#define PCIE_ALTRT(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x700) |
| 4172 | +#define PCIE_ALTRT_ROUND_TRIP_LATENCY_LIMIT 0x0000FFFF /* Round Trip Latency Time Limit */ |
| 4173 | +#define PCIE_ALTRT_ROUND_TRIP_LATENCY_LIMIT_S 0 |
| 4174 | +#define PCIE_ALTRT_REPLAY_TIME_LIMIT 0xFFFF0000 /* Replay Time Limit */ |
| 4175 | +#define PCIE_ALTRT_REPLAY_TIME_LIMIT_S 16 |
| 4176 | + |
| 4177 | +/* Other Message Register */ |
| 4178 | +#define PCIE_OMR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x704) |
| 4179 | + |
| 4180 | +/* Port Force Link Register */ |
| 4181 | +#define PCIE_PFLR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x708) |
| 4182 | +#define PCIE_PFLR_LINK_NUM 0x000000FF /* Link Number */ |
| 4183 | +#define PCIE_PFLR_LINK_NUM_S 0 |
| 4184 | +#define PCIE_PFLR_FORCE_LINK 0x00008000 /* Force link */ |
| 4185 | +#define PCIE_PFLR_LINK_STATE 0x003F0000 /* Link State */ |
| 4186 | +#define PCIE_PFLR_LINK_STATE_S 16 |
| 4187 | +#define PCIE_PFLR_LOW_POWER_ENTRY_CNT 0xFF000000 /* Low Power Entrance Count, only for EP */ |
| 4188 | +#define PCIE_PFLR_LOW_POWER_ENTRY_CNT_S 24 |
| 4189 | + |
| 4190 | +/* Ack Frequency Register */ |
| 4191 | +#define PCIE_AFR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x70C) |
| 4192 | +#define PCIE_AFR_AF 0x000000FF /* Ack Frequency */ |
| 4193 | +#define PCIE_AFR_AF_S 0 |
| 4194 | +#define PCIE_AFR_FTS_NUM 0x0000FF00 /* The number of Fast Training Sequence from L0S to L0 */ |
| 4195 | +#define PCIE_AFR_FTS_NUM_S 8 |
| 4196 | +#define PCIE_AFR_COM_FTS_NUM 0x00FF0000 /* N_FTS; when common clock is used*/ |
| 4197 | +#define PCIE_AFR_COM_FTS_NUM_S 16 |
| 4198 | +#define PCIE_AFR_L0S_ENTRY_LATENCY 0x07000000 /* L0s Entrance Latency */ |
| 4199 | +#define PCIE_AFR_L0S_ENTRY_LATENCY_S 24 |
| 4200 | +#define PCIE_AFR_L1_ENTRY_LATENCY 0x38000000 /* L1 Entrance Latency */ |
| 4201 | +#define PCIE_AFR_L1_ENTRY_LATENCY_S 27 |
| 4202 | +#define PCIE_AFR_FTS_NUM_DEFAULT 32 |
| 4203 | +#define PCIE_AFR_L0S_ENTRY_LATENCY_DEFAULT 7 |
| 4204 | +#define PCIE_AFR_L1_ENTRY_LATENCY_DEFAULT 5 |
| 4205 | + |
| 4206 | +/* Port Link Control Register */ |
| 4207 | +#define PCIE_PLCR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x710) |
| 4208 | +#define PCIE_PLCR_OTHER_MSG_REQ 0x00000001 /* Other Message Request */ |
| 4209 | +#define PCIE_PLCR_SCRAMBLE_DISABLE 0x00000002 /* Scramble Disable */ |
| 4210 | +#define PCIE_PLCR_LOOPBACK_EN 0x00000004 /* Loopback Enable */ |
| 4211 | +#define PCIE_PLCR_LTSSM_HOT_RST 0x00000008 /* Force LTSSM to the hot reset */ |
| 4212 | +#define PCIE_PLCR_DLL_LINK_EN 0x00000020 /* Enable Link initialization */ |
| 4213 | +#define PCIE_PLCR_FAST_LINK_SIM_EN 0x00000080 /* Sets all internal timers to fast mode for simulation purposes */ |
| 4214 | +#define PCIE_PLCR_LINK_MODE 0x003F0000 /* Link Mode Enable Mask */ |
| 4215 | +#define PCIE_PLCR_LINK_MODE_S 16 |
| 4216 | +#define PCIE_PLCR_CORRUPTED_CRC_EN 0x02000000 /* Enabled Corrupt CRC */ |
| 4217 | + |
| 4218 | +/* Lane Skew Register */ |
| 4219 | +#define PCIE_LSR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x714) |
| 4220 | +#define PCIE_LSR_LANE_SKEW_NUM 0x00FFFFFF /* Insert Lane Skew for Transmit, not applicable */ |
| 4221 | +#define PCIE_LSR_LANE_SKEW_NUM_S 0 |
| 4222 | +#define PCIE_LSR_FC_DISABLE 0x01000000 /* Disable of Flow Control */ |
| 4223 | +#define PCIE_LSR_ACKNAK_DISABLE 0x02000000 /* Disable of Ack/Nak */ |
| 4224 | +#define PCIE_LSR_LANE_DESKEW_DISABLE 0x80000000 /* Disable of Lane-to-Lane Skew */ |
| 4225 | + |
| 4226 | +/* Symbol Number Register */ |
| 4227 | +#define PCIE_SNR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x718) |
| 4228 | +#define PCIE_SNR_TS 0x0000000F /* Number of TS Symbol */ |
| 4229 | +#define PCIE_SNR_TS_S 0 |
| 4230 | +#define PCIE_SNR_SKP 0x00000700 /* Number of SKP Symbol */ |
| 4231 | +#define PCIE_SNR_SKP_S 8 |
| 4232 | +#define PCIE_SNR_REPLAY_TIMER 0x0007C000 /* Timer Modifier for Replay Timer */ |
| 4233 | +#define PCIE_SNR_REPLAY_TIMER_S 14 |
| 4234 | +#define PCIE_SNR_ACKNAK_LATENCY_TIMER 0x00F80000 /* Timer Modifier for Ack/Nak Latency Timer */ |
| 4235 | +#define PCIE_SNR_ACKNAK_LATENCY_TIMER_S 19 |
| 4236 | +#define PCIE_SNR_FC_TIMER 0x1F000000 /* Timer Modifier for Flow Control Watchdog Timer */ |
| 4237 | +#define PCIE_SNR_FC_TIMER_S 28 |
| 4238 | + |
| 4239 | +/* Symbol Timer Register and Filter Mask Register 1 */ |
| 4240 | +#define PCIE_STRFMR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x71C) |
| 4241 | +#define PCIE_STRFMR_SKP_INTERVAL 0x000007FF /* SKP lnterval Value */ |
| 4242 | +#define PCIE_STRFMR_SKP_INTERVAL_S 0 |
| 4243 | +#define PCIE_STRFMR_FC_WDT_DISABLE 0x00008000 /* Disable of FC Watchdog Timer */ |
| 4244 | +#define PCIE_STRFMR_TLP_FUNC_MISMATCH_OK 0x00010000 /* Mask Function Mismatch Filtering for Incoming Requests */ |
| 4245 | +#define PCIE_STRFMR_POISONED_TLP_OK 0x00020000 /* Mask Poisoned TLP Filtering */ |
| 4246 | +#define PCIE_STRFMR_BAR_MATCH_OK 0x00040000 /* Mask BAR Match Filtering */ |
| 4247 | +#define PCIE_STRFMR_TYPE1_CFG_REQ_OK 0x00080000 /* Mask Type 1 Configuration Request Filtering */ |
| 4248 | +#define PCIE_STRFMR_LOCKED_REQ_OK 0x00100000 /* Mask Locked Request Filtering */ |
| 4249 | +#define PCIE_STRFMR_CPL_TAG_ERR_RULES_OK 0x00200000 /* Mask Tag Error Rules for Received Completions */ |
| 4250 | +#define PCIE_STRFMR_CPL_REQUESTOR_ID_MISMATCH_OK 0x00400000 /* Mask Requester ID Mismatch Error for Received Completions */ |
| 4251 | +#define PCIE_STRFMR_CPL_FUNC_MISMATCH_OK 0x00800000 /* Mask Function Mismatch Error for Received Completions */ |
| 4252 | +#define PCIE_STRFMR_CPL_TC_MISMATCH_OK 0x01000000 /* Mask Traffic Class Mismatch Error for Received Completions */ |
| 4253 | +#define PCIE_STRFMR_CPL_ATTR_MISMATCH_OK 0x02000000 /* Mask Attribute Mismatch Error for Received Completions */ |
| 4254 | +#define PCIE_STRFMR_CPL_LENGTH_MISMATCH_OK 0x04000000 /* Mask Length Mismatch Error for Received Completions */ |
| 4255 | +#define PCIE_STRFMR_TLP_ECRC_ERR_OK 0x08000000 /* Mask ECRC Error Filtering */ |
| 4256 | +#define PCIE_STRFMR_CPL_TLP_ECRC_OK 0x10000000 /* Mask ECRC Error Filtering for Completions */ |
| 4257 | +#define PCIE_STRFMR_RX_TLP_MSG_NO_DROP 0x20000000 /* Send Message TLPs */ |
| 4258 | +#define PCIE_STRFMR_RX_IO_TRANS_ENABLE 0x40000000 /* Mask Filtering of received I/O Requests */ |
| 4259 | +#define PCIE_STRFMR_RX_CFG_TRANS_ENABLE 0x80000000 /* Mask Filtering of Received Configuration Requests */ |
| 4260 | + |
| 4261 | +#define PCIE_DEF_SKP_INTERVAL 700 /* 1180 ~1538 , 125MHz * 2, 250MHz * 1 */ |
| 4262 | + |
| 4263 | +/* Filter Masker Register 2 */ |
| 4264 | +#define PCIE_FMR2(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x720) |
| 4265 | +#define PCIE_FMR2_VENDOR_MSG0_PASSED_TO_TRGT1 0x00000001 /* Mask RADM Filtering and Error Handling Rules */ |
| 4266 | +#define PCIE_FMR2_VENDOR_MSG1_PASSED_TO_TRGT1 0x00000002 /* Mask RADM Filtering and Error Handling Rules */ |
| 4267 | + |
| 4268 | +/* Debug Register 0 */ |
| 4269 | +#define PCIE_DBR0(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x728) |
| 4270 | + |
| 4271 | +/* Debug Register 1 */ |
| 4272 | +#define PCIE_DBR1(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x72C) |
| 4273 | + |
| 4274 | +/* Transmit Posted FC Credit Status Register */ |
| 4275 | +#define PCIE_TPFCS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x730) |
| 4276 | +#define PCIE_TPFCS_TX_P_DATA_FC_CREDITS 0x00000FFF /* Transmit Posted Data FC Credits */ |
| 4277 | +#define PCIE_TPFCS_TX_P_DATA_FC_CREDITS_S 0 |
| 4278 | +#define PCIE_TPFCS_TX_P_HDR_FC_CREDITS 0x000FF000 /* Transmit Posted Header FC Credits */ |
| 4279 | +#define PCIE_TPFCS_TX_P_HDR_FC_CREDITS_S 12 |
| 4280 | + |
| 4281 | +/* Transmit Non-Posted FC Credit Status */ |
| 4282 | +#define PCIE_TNPFCS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x734) |
| 4283 | +#define PCIE_TNPFCS_TX_NP_DATA_FC_CREDITS 0x00000FFF /* Transmit Non-Posted Data FC Credits */ |
| 4284 | +#define PCIE_TNPFCS_TX_NP_DATA_FC_CREDITS_S 0 |
| 4285 | +#define PCIE_TNPFCS_TX_NP_HDR_FC_CREDITS 0x000FF000 /* Transmit Non-Posted Header FC Credits */ |
| 4286 | +#define PCIE_TNPFCS_TX_NP_HDR_FC_CREDITS_S 12 |
| 4287 | + |
| 4288 | +/* Transmit Complete FC Credit Status Register */ |
| 4289 | +#define PCIE_TCFCS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x738) |
| 4290 | +#define PCIE_TCFCS_TX_CPL_DATA_FC_CREDITS 0x00000FFF /* Transmit Completion Data FC Credits */ |
| 4291 | +#define PCIE_TCFCS_TX_CPL_DATA_FC_CREDITS_S 0 |
| 4292 | +#define PCIE_TCFCS_TX_CPL_HDR_FC_CREDITS 0x000FF000 /* Transmit Completion Header FC Credits */ |
| 4293 | +#define PCIE_TCFCS_TX_CPL_HDR_FC_CREDITS_S 12 |
| 4294 | + |
| 4295 | +/* Queue Status Register */ |
| 4296 | +#define PCIE_QSR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x73C) |
| 4297 | +#define PCIE_QSR_WAIT_UPDATE_FC_DLL 0x00000001 /* Received TLP FC Credits Not Returned */ |
| 4298 | +#define PCIE_QSR_TX_RETRY_BUF_NOT_EMPTY 0x00000002 /* Transmit Retry Buffer Not Empty */ |
| 4299 | +#define PCIE_QSR_RX_QUEUE_NOT_EMPTY 0x00000004 /* Received Queue Not Empty */ |
| 4300 | + |
| 4301 | +/* VC Transmit Arbitration Register 1 */ |
| 4302 | +#define PCIE_VCTAR1(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x740) |
| 4303 | +#define PCIE_VCTAR1_WRR_WEIGHT_VC0 0x000000FF /* WRR Weight for VC0 */ |
| 4304 | +#define PCIE_VCTAR1_WRR_WEIGHT_VC1 0x0000FF00 /* WRR Weight for VC1 */ |
| 4305 | +#define PCIE_VCTAR1_WRR_WEIGHT_VC2 0x00FF0000 /* WRR Weight for VC2 */ |
| 4306 | +#define PCIE_VCTAR1_WRR_WEIGHT_VC3 0xFF000000 /* WRR Weight for VC3 */ |
| 4307 | + |
| 4308 | +/* VC Transmit Arbitration Register 2 */ |
| 4309 | +#define PCIE_VCTAR2(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x744) |
| 4310 | +#define PCIE_VCTAR2_WRR_WEIGHT_VC4 0x000000FF /* WRR Weight for VC4 */ |
| 4311 | +#define PCIE_VCTAR2_WRR_WEIGHT_VC5 0x0000FF00 /* WRR Weight for VC5 */ |
| 4312 | +#define PCIE_VCTAR2_WRR_WEIGHT_VC6 0x00FF0000 /* WRR Weight for VC6 */ |
| 4313 | +#define PCIE_VCTAR2_WRR_WEIGHT_VC7 0xFF000000 /* WRR Weight for VC7 */ |
| 4314 | + |
| 4315 | +/* VC0 Posted Receive Queue Control Register */ |
| 4316 | +#define PCIE_VC0_PRQCR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x748) |
| 4317 | +#define PCIE_VC0_PRQCR_P_DATA_CREDITS 0x00000FFF /* VC0 Posted Data Credits */ |
| 4318 | +#define PCIE_VC0_PRQCR_P_DATA_CREDITS_S 0 |
| 4319 | +#define PCIE_VC0_PRQCR_P_HDR_CREDITS 0x000FF000 /* VC0 Posted Header Credits */ |
| 4320 | +#define PCIE_VC0_PRQCR_P_HDR_CREDITS_S 12 |
| 4321 | +#define PCIE_VC0_PRQCR_P_TLP_QUEUE_MODE 0x00E00000 /* VC0 Posted TLP Queue Mode */ |
| 4322 | +#define PCIE_VC0_PRQCR_P_TLP_QUEUE_MODE_S 20 |
| 4323 | +#define PCIE_VC0_PRQCR_TLP_RELAX_ORDER 0x40000000 /* TLP Type Ordering for VC0 */ |
| 4324 | +#define PCIE_VC0_PRQCR_VC_STRICT_ORDER 0x80000000 /* VC0 Ordering for Receive Queues */ |
| 4325 | + |
| 4326 | +/* VC0 Non-Posted Receive Queue Control */ |
| 4327 | +#define PCIE_VC0_NPRQCR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x74C) |
| 4328 | +#define PCIE_VC0_NPRQCR_NP_DATA_CREDITS 0x00000FFF /* VC0 Non-Posted Data Credits */ |
| 4329 | +#define PCIE_VC0_NPRQCR_NP_DATA_CREDITS_S 0 |
| 4330 | +#define PCIE_VC0_NPRQCR_NP_HDR_CREDITS 0x000FF000 /* VC0 Non-Posted Header Credits */ |
| 4331 | +#define PCIE_VC0_NPRQCR_NP_HDR_CREDITS_S 12 |
| 4332 | +#define PCIE_VC0_NPRQCR_NP_TLP_QUEUE_MODE 0x00E00000 /* VC0 Non-Posted TLP Queue Mode */ |
| 4333 | +#define PCIE_VC0_NPRQCR_NP_TLP_QUEUE_MODE_S 20 |
| 4334 | + |
| 4335 | +/* VC0 Completion Receive Queue Control */ |
| 4336 | +#define PCIE_VC0_CRQCR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x750) |
| 4337 | +#define PCIE_VC0_CRQCR_CPL_DATA_CREDITS 0x00000FFF /* VC0 Completion TLP Queue Mode */ |
| 4338 | +#define PCIE_VC0_CRQCR_CPL_DATA_CREDITS_S 0 |
| 4339 | +#define PCIE_VC0_CRQCR_CPL_HDR_CREDITS 0x000FF000 /* VC0 Completion Header Credits */ |
| 4340 | +#define PCIE_VC0_CRQCR_CPL_HDR_CREDITS_S 12 |
| 4341 | +#define PCIE_VC0_CRQCR_CPL_TLP_QUEUE_MODE 0x00E00000 /* VC0 Completion Data Credits */ |
| 4342 | +#define PCIE_VC0_CRQCR_CPL_TLP_QUEUE_MODE_S 21 |
| 4343 | + |
| 4344 | +/* Applicable to the above three registers */ |
| 4345 | +enum { |
| 4346 | + PCIE_VC0_TLP_QUEUE_MODE_STORE_FORWARD = 1, |
| 4347 | + PCIE_VC0_TLP_QUEUE_MODE_CUT_THROUGH = 2, |
| 4348 | + PCIE_VC0_TLP_QUEUE_MODE_BYPASS = 4, |
| 4349 | +}; |
| 4350 | + |
| 4351 | +/* VC0 Posted Buffer Depth Register */ |
| 4352 | +#define PCIE_VC0_PBD(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x7A8) |
| 4353 | +#define PCIE_VC0_PBD_P_DATA_QUEUE_ENTRIES 0x00003FFF /* VC0 Posted Data Queue Depth */ |
| 4354 | +#define PCIE_VC0_PBD_P_DATA_QUEUE_ENTRIES_S 0 |
| 4355 | +#define PCIE_VC0_PBD_P_HDR_QUEUE_ENTRIES 0x03FF0000 /* VC0 Posted Header Queue Depth */ |
| 4356 | +#define PCIE_VC0_PBD_P_HDR_QUEUE_ENTRIES_S 16 |
| 4357 | + |
| 4358 | +/* VC0 Non-Posted Buffer Depth Register */ |
| 4359 | +#define PCIE_VC0_NPBD(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x7AC) |
| 4360 | +#define PCIE_VC0_NPBD_NP_DATA_QUEUE_ENTRIES 0x00003FFF /* VC0 Non-Posted Data Queue Depth */ |
| 4361 | +#define PCIE_VC0_NPBD_NP_DATA_QUEUE_ENTRIES_S 0 |
| 4362 | +#define PCIE_VC0_NPBD_NP_HDR_QUEUE_ENTRIES 0x03FF0000 /* VC0 Non-Posted Header Queue Depth */ |
| 4363 | +#define PCIE_VC0_NPBD_NP_HDR_QUEUE_ENTRIES_S 16 |
| 4364 | + |
| 4365 | +/* VC0 Completion Buffer Depth Register */ |
| 4366 | +#define PCIE_VC0_CBD(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x7B0) |
| 4367 | +#define PCIE_VC0_CBD_CPL_DATA_QUEUE_ENTRIES 0x00003FFF /* C0 Completion Data Queue Depth */ |
| 4368 | +#define PCIE_VC0_CBD_CPL_DATA_QUEUE_ENTRIES_S 0 |
| 4369 | +#define PCIE_VC0_CBD_CPL_HDR_QUEUE_ENTRIES 0x03FF0000 /* VC0 Completion Header Queue Depth */ |
| 4370 | +#define PCIE_VC0_CBD_CPL_HDR_QUEUE_ENTRIES_S 16 |
| 4371 | + |
| 4372 | +/* PHY Status Register, all zeros in VR9 */ |
| 4373 | +#define PCIE_PHYSR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x810) |
| 4374 | + |
| 4375 | +/* PHY Control Register, all zeros in VR9 */ |
| 4376 | +#define PCIE_PHYCR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x814) |
| 4377 | + |
| 4378 | +/* |
| 4379 | + * PCIe PDI PHY register definition, suppose all the following |
| 4380 | + * stuff is confidential. |
| 4381 | + * XXX, detailed bit definition |
| 4382 | + */ |
| 4383 | +#define PCIE_PHY_PLL_CTRL1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x22 << 1)) |
| 4384 | +#define PCIE_PHY_PLL_CTRL2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x23 << 1)) |
| 4385 | +#define PCIE_PHY_PLL_CTRL3(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x24 << 1)) |
| 4386 | +#define PCIE_PHY_PLL_CTRL4(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x25 << 1)) |
| 4387 | +#define PCIE_PHY_PLL_CTRL5(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x26 << 1)) |
| 4388 | +#define PCIE_PHY_PLL_CTRL6(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x27 << 1)) |
| 4389 | +#define PCIE_PHY_PLL_CTRL7(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x28 << 1)) |
| 4390 | +#define PCIE_PHY_PLL_A_CTRL1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x29 << 1)) |
| 4391 | +#define PCIE_PHY_PLL_A_CTRL2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x2A << 1)) |
| 4392 | +#define PCIE_PHY_PLL_A_CTRL3(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x2B << 1)) |
| 4393 | +#define PCIE_PHY_PLL_STATUS(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x2C << 1)) |
| 4394 | + |
| 4395 | +#define PCIE_PHY_TX1_CTRL1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x30 << 1)) |
| 4396 | +#define PCIE_PHY_TX1_CTRL2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x31 << 1)) |
| 4397 | +#define PCIE_PHY_TX1_CTRL3(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x32 << 1)) |
| 4398 | +#define PCIE_PHY_TX1_A_CTRL1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x33 << 1)) |
| 4399 | +#define PCIE_PHY_TX1_A_CTRL2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x34 << 1)) |
| 4400 | +#define PCIE_PHY_TX1_MOD1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x35 << 1)) |
| 4401 | +#define PCIE_PHY_TX1_MOD2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x36 << 1)) |
| 4402 | +#define PCIE_PHY_TX1_MOD3(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x37 << 1)) |
| 4403 | + |
| 4404 | +#define PCIE_PHY_TX2_CTRL1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x38 << 1)) |
| 4405 | +#define PCIE_PHY_TX2_CTRL2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x39 << 1)) |
| 4406 | +#define PCIE_PHY_TX2_A_CTRL1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x3B << 1)) |
| 4407 | +#define PCIE_PHY_TX2_A_CTRL2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x3C << 1)) |
| 4408 | +#define PCIE_PHY_TX2_MOD1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x3D << 1)) |
| 4409 | +#define PCIE_PHY_TX2_MOD2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x3E << 1)) |
| 4410 | +#define PCIE_PHY_TX2_MOD3(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x3F << 1)) |
| 4411 | + |
| 4412 | +#define PCIE_PHY_RX1_CTRL1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x50 << 1)) |
| 4413 | +#define PCIE_PHY_RX1_CTRL2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x51 << 1)) |
| 4414 | +#define PCIE_PHY_RX1_CDR(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x52 << 1)) |
| 4415 | +#define PCIE_PHY_RX1_EI(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x53 << 1)) |
| 4416 | +#define PCIE_PHY_RX1_A_CTRL(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x55 << 1)) |
| 4417 | + |
| 4418 | +/* Interrupt related stuff */ |
| 4419 | +#define PCIE_LEGACY_DISABLE 0 |
| 4420 | +#define PCIE_LEGACY_INTA 1 |
| 4421 | +#define PCIE_LEGACY_INTB 2 |
| 4422 | +#define PCIE_LEGACY_INTC 3 |
| 4423 | +#define PCIE_LEGACY_INTD 4 |
| 4424 | +#define PCIE_LEGACY_INT_MAX PCIE_LEGACY_INTD |
| 4425 | + |
| 4426 | +#endif /* IFXMIPS_PCIE_REG_H */ |
| 4427 | + |
| 4428 | diff --git a/arch/mips/pci/ifxmips_pcie_vr9.h b/arch/mips/pci/ifxmips_pcie_vr9.h |
| 4429 | new file mode 100644 |
| 4430 | index 0000000..57d9368 |
| 4431 | --- /dev/null |
| 4432 | +++ b/arch/mips/pci/ifxmips_pcie_vr9.h |
| 4433 | @@ -0,0 +1,271 @@ |
| 4434 | +/**************************************************************************** |
| 4435 | + Copyright (c) 2010 |
| 4436 | + Lantiq Deutschland GmbH |
| 4437 | + Am Campeon 3; 85579 Neubiberg, Germany |
| 4438 | + |
| 4439 | + For licensing information, see the file 'LICENSE' in the root folder of |
| 4440 | + this software module. |
| 4441 | + |
| 4442 | + *****************************************************************************/ |
| 4443 | +/*! |
| 4444 | + \file ifxmips_pcie_vr9.h |
| 4445 | + \ingroup IFX_PCIE |
| 4446 | + \brief PCIe RC driver vr9 specific file |
| 4447 | +*/ |
| 4448 | + |
| 4449 | +#ifndef IFXMIPS_PCIE_VR9_H |
| 4450 | +#define IFXMIPS_PCIE_VR9_H |
| 4451 | + |
| 4452 | +#include <linux/types.h> |
| 4453 | +#include <linux/delay.h> |
| 4454 | + |
| 4455 | +#include <linux/gpio.h> |
| 4456 | +#include <lantiq_soc.h> |
| 4457 | + |
| 4458 | +#define IFX_PCIE_GPIO_RESET 238 |
| 4459 | + |
| 4460 | +#define IFX_REG_R32 ltq_r32 |
| 4461 | +#define IFX_REG_W32 ltq_w32 |
| 4462 | +#define CONFIG_IFX_PCIE_HW_SWAP |
| 4463 | +#define IFX_RCU_AHB_ENDIAN ((volatile u32*)(IFX_RCU + 0x004C)) |
| 4464 | +#define IFX_RCU_RST_REQ ((volatile u32*)(IFX_RCU + 0x0010)) |
| 4465 | +#define IFX_RCU_AHB_BE_PCIE_PDI 0x00000080 /* Configure PCIE PDI module in big endian*/ |
| 4466 | + |
| 4467 | +#define IFX_RCU (KSEG1 | 0x1F203000) |
| 4468 | +#define IFX_RCU_AHB_BE_PCIE_M 0x00000001 /* Configure AHB master port that connects to PCIe RC in big endian */ |
| 4469 | +#define IFX_RCU_AHB_BE_PCIE_S 0x00000010 /* Configure AHB slave port that connects to PCIe RC in little endian */ |
| 4470 | +#define IFX_RCU_AHB_BE_XBAR_M 0x00000002 /* Configure AHB master port that connects to XBAR in big endian */ |
| 4471 | +#define CONFIG_IFX_PCIE_PHY_36MHZ_MODE |
| 4472 | + |
| 4473 | +#define IFX_PMU1_MODULE_PCIE_PHY (0) |
| 4474 | +#define IFX_PMU1_MODULE_PCIE_CTRL (1) |
| 4475 | +#define IFX_PMU1_MODULE_PDI (4) |
| 4476 | +#define IFX_PMU1_MODULE_MSI (5) |
| 4477 | + |
| 4478 | +#define IFX_PMU_MODULE_PCIE_L0_CLK (31) |
| 4479 | + |
| 4480 | + |
| 4481 | +#define IFX_GPIO (KSEG1 | 0x1E100B00) |
| 4482 | +#define ALT0 ((volatile u32*)(IFX_GPIO + 0x007c)) |
| 4483 | +#define ALT1 ((volatile u32*)(IFX_GPIO + 0x0080)) |
| 4484 | +#define OD ((volatile u32*)(IFX_GPIO + 0x0084)) |
| 4485 | +#define DIR ((volatile u32*)(IFX_GPIO + 0x0078)) |
| 4486 | +#define OUT ((volatile u32*)(IFX_GPIO + 0x0070)) |
| 4487 | + |
| 4488 | + |
| 4489 | +static inline void pcie_ep_gpio_rst_init(int pcie_port) |
| 4490 | +{ |
| 4491 | + |
| 4492 | + gpio_request(IFX_PCIE_GPIO_RESET, "pcie-reset"); |
| 4493 | + gpio_direction_output(IFX_PCIE_GPIO_RESET, 1); |
| 4494 | + gpio_set_value(IFX_PCIE_GPIO_RESET, 1); |
| 4495 | + |
| 4496 | +/* ifx_gpio_pin_reserve(IFX_PCIE_GPIO_RESET, ifx_pcie_gpio_module_id); |
| 4497 | + ifx_gpio_output_set(IFX_PCIE_GPIO_RESET, ifx_pcie_gpio_module_id); |
| 4498 | + ifx_gpio_dir_out_set(IFX_PCIE_GPIO_RESET, ifx_pcie_gpio_module_id); |
| 4499 | + ifx_gpio_altsel0_clear(IFX_PCIE_GPIO_RESET, ifx_pcie_gpio_module_id); |
| 4500 | + ifx_gpio_altsel1_clear(IFX_PCIE_GPIO_RESET, ifx_pcie_gpio_module_id); |
| 4501 | + ifx_gpio_open_drain_set(IFX_PCIE_GPIO_RESET, ifx_pcie_gpio_module_id);*/ |
| 4502 | +} |
| 4503 | + |
| 4504 | +static inline void pcie_ahb_pmu_setup(void) |
| 4505 | +{ |
| 4506 | + /* Enable AHB bus master/slave */ |
| 4507 | + struct clk *clk; |
| 4508 | + clk = clk_get_sys("1d900000.pcie", "ahb"); |
| 4509 | + clk_enable(clk); |
| 4510 | + |
| 4511 | + //AHBM_PMU_SETUP(IFX_PMU_ENABLE); |
| 4512 | + //AHBS_PMU_SETUP(IFX_PMU_ENABLE); |
| 4513 | +} |
| 4514 | + |
| 4515 | +static inline void pcie_rcu_endian_setup(int pcie_port) |
| 4516 | +{ |
| 4517 | + u32 reg; |
| 4518 | + |
| 4519 | + reg = IFX_REG_R32(IFX_RCU_AHB_ENDIAN); |
| 4520 | +#ifdef CONFIG_IFX_PCIE_HW_SWAP |
| 4521 | + reg |= IFX_RCU_AHB_BE_PCIE_M; |
| 4522 | + reg |= IFX_RCU_AHB_BE_PCIE_S; |
| 4523 | + reg &= ~IFX_RCU_AHB_BE_XBAR_M; |
| 4524 | +#else |
| 4525 | + reg |= IFX_RCU_AHB_BE_PCIE_M; |
| 4526 | + reg &= ~IFX_RCU_AHB_BE_PCIE_S; |
| 4527 | + reg &= ~IFX_RCU_AHB_BE_XBAR_M; |
| 4528 | +#endif /* CONFIG_IFX_PCIE_HW_SWAP */ |
| 4529 | + IFX_REG_W32(reg, IFX_RCU_AHB_ENDIAN); |
| 4530 | + IFX_PCIE_PRINT(PCIE_MSG_REG, "%s IFX_RCU_AHB_ENDIAN: 0x%08x\n", __func__, IFX_REG_R32(IFX_RCU_AHB_ENDIAN)); |
| 4531 | +} |
| 4532 | + |
| 4533 | +static inline void pcie_phy_pmu_enable(int pcie_port) |
| 4534 | +{ |
| 4535 | + struct clk *clk; |
| 4536 | + clk = clk_get_sys("1d900000.pcie", "phy"); |
| 4537 | + clk_enable(clk); |
| 4538 | + |
| 4539 | + //PCIE_PHY_PMU_SETUP(IFX_PMU_ENABLE); |
| 4540 | +} |
| 4541 | + |
| 4542 | +static inline void pcie_phy_pmu_disable(int pcie_port) |
| 4543 | +{ |
| 4544 | + struct clk *clk; |
| 4545 | + clk = clk_get_sys("1d900000.pcie", "phy"); |
| 4546 | + clk_disable(clk); |
| 4547 | + |
| 4548 | +// PCIE_PHY_PMU_SETUP(IFX_PMU_DISABLE); |
| 4549 | +} |
| 4550 | + |
| 4551 | +static inline void pcie_pdi_big_endian(int pcie_port) |
| 4552 | +{ |
| 4553 | + u32 reg; |
| 4554 | + |
| 4555 | + /* SRAM2PDI endianness control. */ |
| 4556 | + reg = IFX_REG_R32(IFX_RCU_AHB_ENDIAN); |
| 4557 | + /* Config AHB->PCIe and PDI endianness */ |
| 4558 | + reg |= IFX_RCU_AHB_BE_PCIE_PDI; |
| 4559 | + IFX_REG_W32(reg, IFX_RCU_AHB_ENDIAN); |
| 4560 | +} |
| 4561 | + |
| 4562 | +static inline void pcie_pdi_pmu_enable(int pcie_port) |
| 4563 | +{ |
| 4564 | + /* Enable PDI to access PCIe PHY register */ |
| 4565 | + struct clk *clk; |
| 4566 | + clk = clk_get_sys("1d900000.pcie", "pdi"); |
| 4567 | + clk_enable(clk); |
| 4568 | + //PDI_PMU_SETUP(IFX_PMU_ENABLE); |
| 4569 | +} |
| 4570 | + |
| 4571 | +static inline void pcie_core_rst_assert(int pcie_port) |
| 4572 | +{ |
| 4573 | + u32 reg; |
| 4574 | + |
| 4575 | + reg = IFX_REG_R32(IFX_RCU_RST_REQ); |
| 4576 | + |
| 4577 | + /* Reset PCIe PHY & Core, bit 22, bit 26 may be affected if write it directly */ |
| 4578 | + reg |= 0x00400000; |
| 4579 | + IFX_REG_W32(reg, IFX_RCU_RST_REQ); |
| 4580 | +} |
| 4581 | + |
| 4582 | +static inline void pcie_core_rst_deassert(int pcie_port) |
| 4583 | +{ |
| 4584 | + u32 reg; |
| 4585 | + |
| 4586 | + /* Make sure one micro-second delay */ |
| 4587 | + udelay(1); |
| 4588 | + |
| 4589 | + /* Reset PCIe PHY & Core, bit 22 */ |
| 4590 | + reg = IFX_REG_R32(IFX_RCU_RST_REQ); |
| 4591 | + reg &= ~0x00400000; |
| 4592 | + IFX_REG_W32(reg, IFX_RCU_RST_REQ); |
| 4593 | +} |
| 4594 | + |
| 4595 | +static inline void pcie_phy_rst_assert(int pcie_port) |
| 4596 | +{ |
| 4597 | + u32 reg; |
| 4598 | + |
| 4599 | + reg = IFX_REG_R32(IFX_RCU_RST_REQ); |
| 4600 | + reg |= 0x00001000; /* Bit 12 */ |
| 4601 | + IFX_REG_W32(reg, IFX_RCU_RST_REQ); |
| 4602 | +} |
| 4603 | + |
| 4604 | +static inline void pcie_phy_rst_deassert(int pcie_port) |
| 4605 | +{ |
| 4606 | + u32 reg; |
| 4607 | + |
| 4608 | + /* Make sure one micro-second delay */ |
| 4609 | + udelay(1); |
| 4610 | + |
| 4611 | + reg = IFX_REG_R32(IFX_RCU_RST_REQ); |
| 4612 | + reg &= ~0x00001000; /* Bit 12 */ |
| 4613 | + IFX_REG_W32(reg, IFX_RCU_RST_REQ); |
| 4614 | +} |
| 4615 | + |
| 4616 | +static inline void pcie_device_rst_assert(int pcie_port) |
| 4617 | +{ |
| 4618 | + printk("%s:%s[%d]\n", __FILE__, __func__, __LINE__); |
| 4619 | + gpio_set_value(IFX_PCIE_GPIO_RESET, 0); |
| 4620 | +// ifx_gpio_output_clear(IFX_PCIE_GPIO_RESET, ifx_pcie_gpio_module_id); |
| 4621 | +} |
| 4622 | + |
| 4623 | +static inline void pcie_device_rst_deassert(int pcie_port) |
| 4624 | +{ |
| 4625 | + mdelay(100); |
| 4626 | + printk("%s:%s[%d]\n", __FILE__, __func__, __LINE__); |
| 4627 | + gpio_direction_output(IFX_PCIE_GPIO_RESET, 1); |
| 4628 | +// gpio_set_value(IFX_PCIE_GPIO_RESET, 1); |
| 4629 | + //ifx_gpio_output_set(IFX_PCIE_GPIO_RESET, ifx_pcie_gpio_module_id); |
| 4630 | +} |
| 4631 | + |
| 4632 | +static inline void pcie_core_pmu_setup(int pcie_port) |
| 4633 | +{ |
| 4634 | + struct clk *clk; |
| 4635 | + clk = clk_get_sys("1d900000.pcie", "ctl"); |
| 4636 | + clk_enable(clk); |
| 4637 | + clk = clk_get_sys("1d900000.pcie", "bus"); |
| 4638 | + clk_enable(clk); |
| 4639 | + |
| 4640 | + /* PCIe Core controller enabled */ |
| 4641 | +// PCIE_CTRL_PMU_SETUP(IFX_PMU_ENABLE); |
| 4642 | + |
| 4643 | + /* Enable PCIe L0 Clock */ |
| 4644 | +// PCIE_L0_CLK_PMU_SETUP(IFX_PMU_ENABLE); |
| 4645 | +} |
| 4646 | + |
| 4647 | +static inline void pcie_msi_init(int pcie_port) |
| 4648 | +{ |
| 4649 | + struct clk *clk; |
| 4650 | + pcie_msi_pic_init(pcie_port); |
| 4651 | + clk = clk_get_sys("ltq_pcie", "msi"); |
| 4652 | + clk_enable(clk); |
| 4653 | +// MSI_PMU_SETUP(IFX_PMU_ENABLE); |
| 4654 | +} |
| 4655 | + |
| 4656 | +static inline u32 |
| 4657 | +ifx_pcie_bus_nr_deduct(u32 bus_number, int pcie_port) |
| 4658 | +{ |
| 4659 | + u32 tbus_number = bus_number; |
| 4660 | + |
| 4661 | +#ifdef CONFIG_IFX_PCI |
| 4662 | + if (pcibios_host_nr() > 1) { |
| 4663 | + tbus_number -= pcibios_1st_host_bus_nr(); |
| 4664 | + } |
| 4665 | +#endif /* CONFIG_IFX_PCI */ |
| 4666 | + return tbus_number; |
| 4667 | +} |
| 4668 | + |
| 4669 | +static inline u32 |
| 4670 | +ifx_pcie_bus_enum_hack(struct pci_bus *bus, u32 devfn, int where, u32 value, int pcie_port, int read) |
| 4671 | +{ |
| 4672 | + struct pci_dev *pdev; |
| 4673 | + u32 tvalue = value; |
| 4674 | + |
| 4675 | + /* Sanity check */ |
| 4676 | + pdev = pci_get_slot(bus, devfn); |
| 4677 | + if (pdev == NULL) { |
| 4678 | + return tvalue; |
| 4679 | + } |
| 4680 | + |
| 4681 | + /* Only care about PCI bridge */ |
| 4682 | + if (pdev->hdr_type != PCI_HEADER_TYPE_BRIDGE) { |
| 4683 | + return tvalue; |
| 4684 | + } |
| 4685 | + |
| 4686 | + if (read) { /* Read hack */ |
| 4687 | + #ifdef CONFIG_IFX_PCI |
| 4688 | + if (pcibios_host_nr() > 1) { |
| 4689 | + tvalue = ifx_pcie_bus_enum_read_hack(where, tvalue); |
| 4690 | + } |
| 4691 | + #endif /* CONFIG_IFX_PCI */ |
| 4692 | + } |
| 4693 | + else { /* Write hack */ |
| 4694 | + #ifdef CONFIG_IFX_PCI |
| 4695 | + if (pcibios_host_nr() > 1) { |
| 4696 | + tvalue = ifx_pcie_bus_enum_write_hack(where, tvalue); |
| 4697 | + } |
| 4698 | + #endif |
| 4699 | + } |
| 4700 | + return tvalue; |
| 4701 | +} |
| 4702 | + |
| 4703 | +#endif /* IFXMIPS_PCIE_VR9_H */ |
| 4704 | + |
| 4705 | diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c |
| 4706 | index 04e35bc..2e85529 100644 |
| 4707 | --- a/arch/mips/pci/pci.c |
| 4708 | +++ b/arch/mips/pci/pci.c |
| 4709 | @@ -250,6 +250,31 @@ static int __init pcibios_init(void) |
| 4710 | |
| 4711 | subsys_initcall(pcibios_init); |
| 4712 | |
| 4713 | +int pcibios_host_nr(void) |
| 4714 | +{ |
| 4715 | + int count; |
| 4716 | + struct pci_controller *hose; |
| 4717 | + for (count = 0, hose = hose_head; hose; hose = hose->next, count++) { |
| 4718 | + ; |
| 4719 | + } |
| 4720 | + return count; |
| 4721 | +} |
| 4722 | +EXPORT_SYMBOL(pcibios_host_nr); |
| 4723 | + |
| 4724 | +int pcibios_1st_host_bus_nr(void) |
| 4725 | +{ |
| 4726 | + int bus_nr = 0; |
| 4727 | + struct pci_controller *hose = hose_head; |
| 4728 | + |
| 4729 | + if (hose != NULL) { |
| 4730 | + if (hose->bus != NULL) { |
| 4731 | + bus_nr = hose->bus->number + 1; |
| 4732 | + } |
| 4733 | + } |
| 4734 | + return bus_nr; |
| 4735 | +} |
| 4736 | +EXPORT_SYMBOL(pcibios_1st_host_bus_nr); |
| 4737 | + |
| 4738 | static int pcibios_enable_resources(struct pci_dev *dev, int mask) |
| 4739 | { |
| 4740 | u16 cmd, old_cmd; |
| 4741 | diff --git a/drivers/pci/pcie/aer/Kconfig b/drivers/pci/pcie/aer/Kconfig |
| 4742 | index 50e94e0..4bf848f 100644 |
| 4743 | --- a/drivers/pci/pcie/aer/Kconfig |
| 4744 | +++ b/drivers/pci/pcie/aer/Kconfig |
| 4745 | @@ -5,7 +5,7 @@ |
| 4746 | config PCIEAER |
| 4747 | boolean "Root Port Advanced Error Reporting support" |
| 4748 | depends on PCIEPORTBUS |
| 4749 | - default y |
| 4750 | + default n |
| 4751 | help |
| 4752 | This enables PCI Express Root Port Advanced Error Reporting |
| 4753 | (AER) driver support. Error reporting messages sent to Root |
| 4754 | diff --git a/include/linux/pci.h b/include/linux/pci.h |
| 4755 | index ee21795..0d08026 100644 |
| 4756 | --- a/include/linux/pci.h |
| 4757 | +++ b/include/linux/pci.h |
| 4758 | @@ -1038,6 +1038,8 @@ void pci_walk_bus(struct pci_bus *top, int (*cb)(struct pci_dev *, void *), |
| 4759 | int pci_cfg_space_size_ext(struct pci_dev *dev); |
| 4760 | int pci_cfg_space_size(struct pci_dev *dev); |
| 4761 | unsigned char pci_bus_max_busnr(struct pci_bus *bus); |
| 4762 | +int pcibios_host_nr(void); |
| 4763 | +int pcibios_1st_host_bus_nr(void); |
| 4764 | void pci_setup_bridge(struct pci_bus *bus); |
| 4765 | resource_size_t pcibios_window_alignment(struct pci_bus *bus, |
| 4766 | unsigned long type); |
| 4767 | diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h |
| 4768 | index 9d36b82..493ada4 100644 |
| 4769 | --- a/include/linux/pci_ids.h |
| 4770 | +++ b/include/linux/pci_ids.h |
| 4771 | @@ -1040,6 +1040,12 @@ |
| 4772 | #define PCI_DEVICE_ID_SGI_LITHIUM 0x1002 |
| 4773 | #define PCI_DEVICE_ID_SGI_IOC4 0x100a |
| 4774 | |
| 4775 | +#define PCI_VENDOR_ID_INFINEON 0x15D1 |
| 4776 | +#define PCI_DEVICE_ID_INFINEON_DANUBE 0x000F |
| 4777 | +#define PCI_DEVICE_ID_INFINEON_PCIE 0x0011 |
| 4778 | +#define PCI_VENDOR_ID_LANTIQ 0x1BEF |
| 4779 | +#define PCI_DEVICE_ID_LANTIQ_PCIE 0x00 |
| 4780 | + |
| 4781 | #define PCI_VENDOR_ID_WINBOND 0x10ad |
| 4782 | #define PCI_DEVICE_ID_WINBOND_82C105 0x0105 |
| 4783 | #define PCI_DEVICE_ID_WINBOND_83C553 0x0565 |
| 4784 | -- |
| 4785 | 1.7.10.4 |
| 4786 | |
| 4787 | |