Root/target/linux/ixp4xx/patches-3.3/115-sidewinder_support.patch

1From 60bdaaaf3446b4237566c6e04855186fc7bd766b Mon Sep 17 00:00:00 2001
2From: Imre Kaloz <kaloz@openwrt.org>
3Date: Sun, 13 Jul 2008 22:46:45 +0200
4Subject: [PATCH] Add support for the ADI Sidewinder
5
6Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
7---
8 arch/arm/mach-ixp4xx/Kconfig | 10 ++-
9 arch/arm/mach-ixp4xx/Makefile | 2 +
10 arch/arm/mach-ixp4xx/sidewinder-pci.c | 68 ++++++++++++++
11 arch/arm/mach-ixp4xx/sidewinder-setup.c | 151 +++++++++++++++++++++++++++++++
12 4 files changed, 230 insertions(+), 1 deletions(-)
13 create mode 100644 arch/arm/mach-ixp4xx/sidewinder-pci.c
14 create mode 100644 arch/arm/mach-ixp4xx/sidewinder-setup.c
15
16--- a/arch/arm/mach-ixp4xx/Kconfig
17+++ b/arch/arm/mach-ixp4xx/Kconfig
18@@ -81,6 +81,14 @@ config MACH_PRONGHORN
19 config MACH_PRONGHORNMETRO
20     def_bool MACH_PRONGHORN
21 
22+config MACH_SIDEWINDER
23+ bool "ADI Sidewinder"
24+ select PCI
25+ help
26+ Say 'Y' here if you want your kernel to support the ADI
27+ Engineering Sidewinder board. For more information on this
28+ platform, see http://www.adiengineering.com
29+
30 config ARCH_IXDP425
31     bool "IXDP425"
32     help
33@@ -177,7 +185,7 @@ config MACH_ARCOM_VULCAN
34 #
35 config CPU_IXP46X
36     bool
37- depends on MACH_IXDP465
38+ depends on MACH_IXDP465 || MACH_SIDEWINDER
39     default y
40 
41 config CPU_IXP43X
42--- a/arch/arm/mach-ixp4xx/Makefile
43+++ b/arch/arm/mach-ixp4xx/Makefile
44@@ -20,6 +20,7 @@ obj-pci-$(CONFIG_MACH_WG302V2) += wg302
45 obj-pci-$(CONFIG_MACH_FSG) += fsg-pci.o
46 obj-pci-$(CONFIG_MACH_ARCOM_VULCAN) += vulcan-pci.o
47 obj-pci-$(CONFIG_MACH_PRONGHORN) += pronghorn-pci.o
48+obj-pci-$(CONFIG_MACH_SIDEWINDER) += sidewinder-pci.o
49 
50 obj-y += common.o
51 
52@@ -41,6 +42,7 @@ obj-$(CONFIG_MACH_FSG) += fsg-setup.o
53 obj-$(CONFIG_MACH_GORAMO_MLR) += goramo_mlr.o
54 obj-$(CONFIG_MACH_ARCOM_VULCAN) += vulcan-setup.o
55 obj-$(CONFIG_MACH_PRONGHORN) += pronghorn-setup.o
56+obj-$(CONFIG_MACH_SIDEWINDER) += sidewinder-setup.o
57 
58 obj-$(CONFIG_PCI) += $(obj-pci-$(CONFIG_PCI)) common-pci.o
59 obj-$(CONFIG_IXP4XX_QMGR) += ixp4xx_qmgr.o
60--- /dev/null
61+++ b/arch/arm/mach-ixp4xx/sidewinder-pci.c
62@@ -0,0 +1,68 @@
63+/*
64+ * arch/arch/mach-ixp4xx/pronghornmetro-pci.c
65+ *
66+ * PCI setup routines for ADI Engineering Sidewinder
67+ *
68+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
69+ *
70+ * based on coyote-pci.c:
71+ * Copyright (C) 2002 Jungo Software Technologies.
72+ * Copyright (C) 2003 MontaVista Softwrae, Inc.
73+ *
74+ * Maintainer: Imre Kaloz <kaloz@openwrt.org>
75+ *
76+ * This program is free software; you can redistribute it and/or modify
77+ * it under the terms of the GNU General Public License version 2 as
78+ * published by the Free Software Foundation.
79+ *
80+ */
81+
82+#include <linux/kernel.h>
83+#include <linux/pci.h>
84+#include <linux/init.h>
85+#include <linux/irq.h>
86+
87+#include <asm/mach-types.h>
88+#include <mach/hardware.h>
89+#include <asm/irq.h>
90+
91+#include <asm/mach/pci.h>
92+
93+void __init sidewinder_pci_preinit(void)
94+{
95+ irq_set_irq_type(IRQ_IXP4XX_GPIO11, IRQ_TYPE_LEVEL_LOW);
96+ irq_set_irq_type(IRQ_IXP4XX_GPIO10, IRQ_TYPE_LEVEL_LOW);
97+ irq_set_irq_type(IRQ_IXP4XX_GPIO9, IRQ_TYPE_LEVEL_LOW);
98+
99+ ixp4xx_pci_preinit();
100+}
101+
102+static int __init sidewinder_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
103+{
104+ if (slot == 1)
105+ return IRQ_IXP4XX_GPIO11;
106+ else if (slot == 2)
107+ return IRQ_IXP4XX_GPIO10;
108+ else if (slot == 3)
109+ return IRQ_IXP4XX_GPIO9;
110+ else
111+ return -1;
112+}
113+
114+struct hw_pci sidewinder_pci __initdata = {
115+ .nr_controllers = 1,
116+ .preinit = sidewinder_pci_preinit,
117+ .swizzle = pci_std_swizzle,
118+ .setup = ixp4xx_setup,
119+ .scan = ixp4xx_scan_bus,
120+ .map_irq = sidewinder_map_irq,
121+};
122+
123+int __init sidewinder_pci_init(void)
124+{
125+ if (machine_is_sidewinder())
126+ pci_common_init(&sidewinder_pci);
127+ return 0;
128+}
129+
130+subsys_initcall(sidewinder_pci_init);
131--- /dev/null
132+++ b/arch/arm/mach-ixp4xx/sidewinder-setup.c
133@@ -0,0 +1,151 @@
134+/*
135+ * arch/arm/mach-ixp4xx/sidewinder-setup.c
136+ *
137+ * Board setup for the ADI Engineering Sidewinder
138+ *
139+ * Copyright (C) 2008 Imre Kaloz <Kaloz@openwrt.org>
140+ *
141+ * based on coyote-setup.c:
142+ * Copyright (C) 2003-2005 MontaVista Software, Inc.
143+ *
144+ * Author: Imre Kaloz <Kaloz@openwrt.org>
145+ */
146+
147+#include <linux/kernel.h>
148+#include <linux/serial.h>
149+#include <linux/serial_8250.h>
150+
151+#include <asm/mach-types.h>
152+#include <asm/mach/arch.h>
153+#include <asm/mach/flash.h>
154+
155+static struct flash_platform_data sidewinder_flash_data = {
156+ .map_name = "cfi_probe",
157+ .width = 2,
158+};
159+
160+static struct resource sidewinder_flash_resource = {
161+ .flags = IORESOURCE_MEM,
162+};
163+
164+static struct platform_device sidewinder_flash = {
165+ .name = "IXP4XX-Flash",
166+ .id = 0,
167+ .dev = {
168+ .platform_data = &sidewinder_flash_data,
169+ },
170+ .num_resources = 1,
171+ .resource = &sidewinder_flash_resource,
172+};
173+
174+static struct resource sidewinder_uart_resources[] = {
175+ {
176+ .start = IXP4XX_UART1_BASE_PHYS,
177+ .end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
178+ .flags = IORESOURCE_MEM,
179+ },
180+ {
181+ .start = IXP4XX_UART2_BASE_PHYS,
182+ .end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
183+ .flags = IORESOURCE_MEM,
184+ }
185+};
186+
187+static struct plat_serial8250_port sidewinder_uart_data[] = {
188+ {
189+ .mapbase = IXP4XX_UART1_BASE_PHYS,
190+ .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
191+ .irq = IRQ_IXP4XX_UART1,
192+ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
193+ .iotype = UPIO_MEM,
194+ .regshift = 2,
195+ .uartclk = IXP4XX_UART_XTAL,
196+ },
197+ {
198+ .mapbase = IXP4XX_UART2_BASE_PHYS,
199+ .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
200+ .irq = IRQ_IXP4XX_UART2,
201+ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
202+ .iotype = UPIO_MEM,
203+ .regshift = 2,
204+ .uartclk = IXP4XX_UART_XTAL,
205+ },
206+ { },
207+};
208+
209+static struct platform_device sidewinder_uart = {
210+ .name = "serial8250",
211+ .id = PLAT8250_DEV_PLATFORM,
212+ .dev = {
213+ .platform_data = sidewinder_uart_data,
214+ },
215+ .num_resources = ARRAY_SIZE(sidewinder_uart_resources),
216+ .resource = sidewinder_uart_resources,
217+};
218+
219+static struct eth_plat_info sidewinder_plat_eth[] = {
220+ {
221+ .phy = 5,
222+ .rxq = 3,
223+ .txreadyq = 20,
224+ }, {
225+ .phy = IXP4XX_ETH_PHY_MAX_ADDR,
226+ .phy_mask = 0x1e,
227+ .rxq = 4,
228+ .txreadyq = 21,
229+ }, {
230+ .phy = 31,
231+ .rxq = 2,
232+ .txreadyq = 19,
233+ }
234+};
235+
236+static struct platform_device sidewinder_eth[] = {
237+ {
238+ .name = "ixp4xx_eth",
239+ .id = IXP4XX_ETH_NPEB,
240+ .dev.platform_data = sidewinder_plat_eth,
241+ }, {
242+ .name = "ixp4xx_eth",
243+ .id = IXP4XX_ETH_NPEC,
244+ .dev.platform_data = sidewinder_plat_eth + 1,
245+ }, {
246+ .name = "ixp4xx_eth",
247+ .id = IXP4XX_ETH_NPEA,
248+ .dev.platform_data = sidewinder_plat_eth + 2,
249+ }
250+};
251+
252+static struct platform_device *sidewinder_devices[] __initdata = {
253+ &sidewinder_flash,
254+ &sidewinder_uart,
255+ &sidewinder_eth[0],
256+ &sidewinder_eth[1],
257+ &sidewinder_eth[2],
258+};
259+
260+static void __init sidewinder_init(void)
261+{
262+ ixp4xx_sys_init();
263+
264+ sidewinder_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
265+ sidewinder_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_64M - 1;
266+
267+ *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
268+ *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
269+
270+ platform_add_devices(sidewinder_devices, ARRAY_SIZE(sidewinder_devices));
271+}
272+
273+MACHINE_START(SIDEWINDER, "ADI Engineering Sidewinder")
274+ /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
275+ .map_io = ixp4xx_map_io,
276+ .init_irq = ixp4xx_init_irq,
277+ .timer = &ixp4xx_timer,
278+ .atag_offset = 0x0100,
279+ .init_machine = sidewinder_init,
280+#if defined(CONFIG_PCI)
281+ .dma_zone_size = SZ_64M,
282+#endif
283+ .restart = ixp4xx_restart,
284+MACHINE_END
285

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