| 1 | From 57857d7df6c22eaf11e3c67042d55a9546415059 Mon Sep 17 00:00:00 2001 |
| 2 | From: Hauke Mehrtens <hauke@hauke-m.de> |
| 3 | Date: Sat, 26 Nov 2011 21:36:50 +0100 |
| 4 | Subject: [PATCH 186/186] USB: OHCI: remove old SSB OHCI driver |
| 5 | |
| 6 | This is now replaced by the new ssb USB driver, which also supports |
| 7 | devices with an EHCI controller. |
| 8 | |
| 9 | Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> |
| 10 | --- |
| 11 | drivers/usb/host/Kconfig | 13 -- |
| 12 | drivers/usb/host/ohci-hcd.c | 21 +---- |
| 13 | drivers/usb/host/ohci-ssb.c | 260 ------------------------------------------- |
| 14 | 3 files changed, 1 insertions(+), 293 deletions(-) |
| 15 | delete mode 100644 drivers/usb/host/ohci-ssb.c |
| 16 | |
| 17 | --- a/drivers/usb/host/Kconfig |
| 18 | +++ b/drivers/usb/host/Kconfig |
| 19 | @@ -351,19 +351,6 @@ config USB_OHCI_HCD_PCI |
| 20 | Enables support for PCI-bus plug-in USB controller cards. |
| 21 | If unsure, say Y. |
| 22 | |
| 23 | -config USB_OHCI_HCD_SSB |
| 24 | - bool "OHCI support for Broadcom SSB OHCI core" |
| 25 | - depends on USB_OHCI_HCD && (SSB = y || SSB = USB_OHCI_HCD) && EXPERIMENTAL |
| 26 | - default n |
| 27 | - ---help--- |
| 28 | - Support for the Sonics Silicon Backplane (SSB) attached |
| 29 | - Broadcom USB OHCI core. |
| 30 | - |
| 31 | - This device is present in some embedded devices with |
| 32 | - Broadcom based SSB bus. |
| 33 | - |
| 34 | - If unsure, say N. |
| 35 | - |
| 36 | config USB_OHCI_SH |
| 37 | bool "OHCI support for SuperH USB controller" |
| 38 | depends on USB_OHCI_HCD && SUPERH |
| 39 | --- a/drivers/usb/host/ohci-hcd.c |
| 40 | +++ b/drivers/usb/host/ohci-hcd.c |
| 41 | @@ -1076,11 +1076,6 @@ MODULE_LICENSE ("GPL"); |
| 42 | #define PS3_SYSTEM_BUS_DRIVER ps3_ohci_driver |
| 43 | #endif |
| 44 | |
| 45 | -#ifdef CONFIG_USB_OHCI_HCD_SSB |
| 46 | -#include "ohci-ssb.c" |
| 47 | -#define SSB_OHCI_DRIVER ssb_ohci_driver |
| 48 | -#endif |
| 49 | - |
| 50 | #ifdef CONFIG_MFD_SM501 |
| 51 | #include "ohci-sm501.c" |
| 52 | #define SM501_OHCI_DRIVER ohci_hcd_sm501_driver |
| 53 | @@ -1129,8 +1124,7 @@ MODULE_LICENSE ("GPL"); |
| 54 | !defined(SA1111_DRIVER) && \ |
| 55 | !defined(PS3_SYSTEM_BUS_DRIVER) && \ |
| 56 | !defined(SM501_OHCI_DRIVER) && \ |
| 57 | - !defined(TMIO_OHCI_DRIVER) && \ |
| 58 | - !defined(SSB_OHCI_DRIVER) |
| 59 | + !defined(TMIO_OHCI_DRIVER) |
| 60 | #error "missing bus glue for ohci-hcd" |
| 61 | #endif |
| 62 | |
| 63 | @@ -1196,12 +1190,6 @@ static int __init ohci_hcd_mod_init(void |
| 64 | goto error_pci; |
| 65 | #endif |
| 66 | |
| 67 | -#ifdef SSB_OHCI_DRIVER |
| 68 | - retval = ssb_driver_register(&SSB_OHCI_DRIVER); |
| 69 | - if (retval) |
| 70 | - goto error_ssb; |
| 71 | -#endif |
| 72 | - |
| 73 | #ifdef SM501_OHCI_DRIVER |
| 74 | retval = platform_driver_register(&SM501_OHCI_DRIVER); |
| 75 | if (retval < 0) |
| 76 | @@ -1225,10 +1213,6 @@ static int __init ohci_hcd_mod_init(void |
| 77 | platform_driver_unregister(&SM501_OHCI_DRIVER); |
| 78 | error_sm501: |
| 79 | #endif |
| 80 | -#ifdef SSB_OHCI_DRIVER |
| 81 | - ssb_driver_unregister(&SSB_OHCI_DRIVER); |
| 82 | - error_ssb: |
| 83 | -#endif |
| 84 | #ifdef PCI_DRIVER |
| 85 | pci_unregister_driver(&PCI_DRIVER); |
| 86 | error_pci: |
| 87 | @@ -1276,9 +1260,6 @@ static void __exit ohci_hcd_mod_exit(voi |
| 88 | #ifdef SM501_OHCI_DRIVER |
| 89 | platform_driver_unregister(&SM501_OHCI_DRIVER); |
| 90 | #endif |
| 91 | -#ifdef SSB_OHCI_DRIVER |
| 92 | - ssb_driver_unregister(&SSB_OHCI_DRIVER); |
| 93 | -#endif |
| 94 | #ifdef PCI_DRIVER |
| 95 | pci_unregister_driver(&PCI_DRIVER); |
| 96 | #endif |
| 97 | --- a/drivers/usb/host/ohci-ssb.c |
| 98 | +++ /dev/null |
| 99 | @@ -1,260 +0,0 @@ |
| 100 | -/* |
| 101 | - * Sonics Silicon Backplane |
| 102 | - * Broadcom USB-core OHCI driver |
| 103 | - * |
| 104 | - * Copyright 2007 Michael Buesch <m@bues.ch> |
| 105 | - * |
| 106 | - * Derived from the OHCI-PCI driver |
| 107 | - * Copyright 1999 Roman Weissgaerber |
| 108 | - * Copyright 2000-2002 David Brownell |
| 109 | - * Copyright 1999 Linus Torvalds |
| 110 | - * Copyright 1999 Gregory P. Smith |
| 111 | - * |
| 112 | - * Derived from the USBcore related parts of Broadcom-SB |
| 113 | - * Copyright 2005 Broadcom Corporation |
| 114 | - * |
| 115 | - * Licensed under the GNU/GPL. See COPYING for details. |
| 116 | - */ |
| 117 | -#include <linux/ssb/ssb.h> |
| 118 | - |
| 119 | - |
| 120 | -#define SSB_OHCI_TMSLOW_HOSTMODE (1 << 29) |
| 121 | - |
| 122 | -struct ssb_ohci_device { |
| 123 | - struct ohci_hcd ohci; /* _must_ be at the beginning. */ |
| 124 | - |
| 125 | - u32 enable_flags; |
| 126 | -}; |
| 127 | - |
| 128 | -static inline |
| 129 | -struct ssb_ohci_device *hcd_to_ssb_ohci(struct usb_hcd *hcd) |
| 130 | -{ |
| 131 | - return (struct ssb_ohci_device *)(hcd->hcd_priv); |
| 132 | -} |
| 133 | - |
| 134 | - |
| 135 | -static int ssb_ohci_reset(struct usb_hcd *hcd) |
| 136 | -{ |
| 137 | - struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd); |
| 138 | - struct ohci_hcd *ohci = &ohcidev->ohci; |
| 139 | - int err; |
| 140 | - |
| 141 | - ohci_hcd_init(ohci); |
| 142 | - err = ohci_init(ohci); |
| 143 | - |
| 144 | - return err; |
| 145 | -} |
| 146 | - |
| 147 | -static int ssb_ohci_start(struct usb_hcd *hcd) |
| 148 | -{ |
| 149 | - struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd); |
| 150 | - struct ohci_hcd *ohci = &ohcidev->ohci; |
| 151 | - int err; |
| 152 | - |
| 153 | - err = ohci_run(ohci); |
| 154 | - if (err < 0) { |
| 155 | - ohci_err(ohci, "can't start\n"); |
| 156 | - ohci_stop(hcd); |
| 157 | - } |
| 158 | - |
| 159 | - return err; |
| 160 | -} |
| 161 | - |
| 162 | -static const struct hc_driver ssb_ohci_hc_driver = { |
| 163 | - .description = "ssb-usb-ohci", |
| 164 | - .product_desc = "SSB OHCI Controller", |
| 165 | - .hcd_priv_size = sizeof(struct ssb_ohci_device), |
| 166 | - |
| 167 | - .irq = ohci_irq, |
| 168 | - .flags = HCD_MEMORY | HCD_USB11, |
| 169 | - |
| 170 | - .reset = ssb_ohci_reset, |
| 171 | - .start = ssb_ohci_start, |
| 172 | - .stop = ohci_stop, |
| 173 | - .shutdown = ohci_shutdown, |
| 174 | - |
| 175 | - .urb_enqueue = ohci_urb_enqueue, |
| 176 | - .urb_dequeue = ohci_urb_dequeue, |
| 177 | - .endpoint_disable = ohci_endpoint_disable, |
| 178 | - |
| 179 | - .get_frame_number = ohci_get_frame, |
| 180 | - |
| 181 | - .hub_status_data = ohci_hub_status_data, |
| 182 | - .hub_control = ohci_hub_control, |
| 183 | -#ifdef CONFIG_PM |
| 184 | - .bus_suspend = ohci_bus_suspend, |
| 185 | - .bus_resume = ohci_bus_resume, |
| 186 | -#endif |
| 187 | - |
| 188 | - .start_port_reset = ohci_start_port_reset, |
| 189 | -}; |
| 190 | - |
| 191 | -static void ssb_ohci_detach(struct ssb_device *dev) |
| 192 | -{ |
| 193 | - struct usb_hcd *hcd = ssb_get_drvdata(dev); |
| 194 | - |
| 195 | - if (hcd->driver->shutdown) |
| 196 | - hcd->driver->shutdown(hcd); |
| 197 | - usb_remove_hcd(hcd); |
| 198 | - iounmap(hcd->regs); |
| 199 | - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); |
| 200 | - usb_put_hcd(hcd); |
| 201 | - ssb_device_disable(dev, 0); |
| 202 | -} |
| 203 | - |
| 204 | -static int ssb_ohci_attach(struct ssb_device *dev) |
| 205 | -{ |
| 206 | - struct ssb_ohci_device *ohcidev; |
| 207 | - struct usb_hcd *hcd; |
| 208 | - int err = -ENOMEM; |
| 209 | - u32 tmp, flags = 0; |
| 210 | - |
| 211 | - if (dma_set_mask(dev->dma_dev, DMA_BIT_MASK(32)) || |
| 212 | - dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32))) |
| 213 | - return -EOPNOTSUPP; |
| 214 | - |
| 215 | - if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) { |
| 216 | - /* Put the device into host-mode. */ |
| 217 | - flags |= SSB_OHCI_TMSLOW_HOSTMODE; |
| 218 | - ssb_device_enable(dev, flags); |
| 219 | - } else if (dev->id.coreid == SSB_DEV_USB20_HOST) { |
| 220 | - /* |
| 221 | - * USB 2.0 special considerations: |
| 222 | - * |
| 223 | - * In addition to the standard SSB reset sequence, the Host |
| 224 | - * Control Register must be programmed to bring the USB core |
| 225 | - * and various phy components out of reset. |
| 226 | - */ |
| 227 | - ssb_device_enable(dev, 0); |
| 228 | - ssb_write32(dev, 0x200, 0x7ff); |
| 229 | - |
| 230 | - /* Change Flush control reg */ |
| 231 | - tmp = ssb_read32(dev, 0x400); |
| 232 | - tmp &= ~8; |
| 233 | - ssb_write32(dev, 0x400, tmp); |
| 234 | - tmp = ssb_read32(dev, 0x400); |
| 235 | - |
| 236 | - /* Change Shim control reg */ |
| 237 | - tmp = ssb_read32(dev, 0x304); |
| 238 | - tmp &= ~0x100; |
| 239 | - ssb_write32(dev, 0x304, tmp); |
| 240 | - tmp = ssb_read32(dev, 0x304); |
| 241 | - |
| 242 | - udelay(1); |
| 243 | - |
| 244 | - /* Work around for 5354 failures */ |
| 245 | - if (dev->id.revision == 2 && dev->bus->chip_id == 0x5354) { |
| 246 | - /* Change syn01 reg */ |
| 247 | - tmp = 0x00fe00fe; |
| 248 | - ssb_write32(dev, 0x894, tmp); |
| 249 | - |
| 250 | - /* Change syn03 reg */ |
| 251 | - tmp = ssb_read32(dev, 0x89c); |
| 252 | - tmp |= 0x1; |
| 253 | - ssb_write32(dev, 0x89c, tmp); |
| 254 | - } |
| 255 | - } else |
| 256 | - ssb_device_enable(dev, 0); |
| 257 | - |
| 258 | - hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev, |
| 259 | - dev_name(dev->dev)); |
| 260 | - if (!hcd) |
| 261 | - goto err_dev_disable; |
| 262 | - ohcidev = hcd_to_ssb_ohci(hcd); |
| 263 | - ohcidev->enable_flags = flags; |
| 264 | - |
| 265 | - tmp = ssb_read32(dev, SSB_ADMATCH0); |
| 266 | - hcd->rsrc_start = ssb_admatch_base(tmp); |
| 267 | - hcd->rsrc_len = ssb_admatch_size(tmp); |
| 268 | - hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len); |
| 269 | - if (!hcd->regs) |
| 270 | - goto err_put_hcd; |
| 271 | - err = usb_add_hcd(hcd, dev->irq, IRQF_SHARED); |
| 272 | - if (err) |
| 273 | - goto err_iounmap; |
| 274 | - |
| 275 | - ssb_set_drvdata(dev, hcd); |
| 276 | - |
| 277 | - return err; |
| 278 | - |
| 279 | -err_iounmap: |
| 280 | - iounmap(hcd->regs); |
| 281 | -err_put_hcd: |
| 282 | - usb_put_hcd(hcd); |
| 283 | -err_dev_disable: |
| 284 | - ssb_device_disable(dev, flags); |
| 285 | - return err; |
| 286 | -} |
| 287 | - |
| 288 | -static int ssb_ohci_probe(struct ssb_device *dev, |
| 289 | - const struct ssb_device_id *id) |
| 290 | -{ |
| 291 | - int err; |
| 292 | - u16 chipid_top; |
| 293 | - |
| 294 | - /* USBcores are only connected on embedded devices. */ |
| 295 | - chipid_top = (dev->bus->chip_id & 0xFF00); |
| 296 | - if (chipid_top != 0x4700 && chipid_top != 0x5300) |
| 297 | - return -ENODEV; |
| 298 | - |
| 299 | - /* TODO: Probably need checks here; is the core connected? */ |
| 300 | - |
| 301 | - if (usb_disabled()) |
| 302 | - return -ENODEV; |
| 303 | - |
| 304 | - /* We currently always attach SSB_DEV_USB11_HOSTDEV |
| 305 | - * as HOST OHCI. If we want to attach it as Client device, |
| 306 | - * we must branch here and call into the (yet to |
| 307 | - * be written) Client mode driver. Same for remove(). */ |
| 308 | - |
| 309 | - err = ssb_ohci_attach(dev); |
| 310 | - |
| 311 | - return err; |
| 312 | -} |
| 313 | - |
| 314 | -static void ssb_ohci_remove(struct ssb_device *dev) |
| 315 | -{ |
| 316 | - ssb_ohci_detach(dev); |
| 317 | -} |
| 318 | - |
| 319 | -#ifdef CONFIG_PM |
| 320 | - |
| 321 | -static int ssb_ohci_suspend(struct ssb_device *dev, pm_message_t state) |
| 322 | -{ |
| 323 | - ssb_device_disable(dev, 0); |
| 324 | - |
| 325 | - return 0; |
| 326 | -} |
| 327 | - |
| 328 | -static int ssb_ohci_resume(struct ssb_device *dev) |
| 329 | -{ |
| 330 | - struct usb_hcd *hcd = ssb_get_drvdata(dev); |
| 331 | - struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd); |
| 332 | - |
| 333 | - ssb_device_enable(dev, ohcidev->enable_flags); |
| 334 | - |
| 335 | - ohci_finish_controller_resume(hcd); |
| 336 | - return 0; |
| 337 | -} |
| 338 | - |
| 339 | -#else /* !CONFIG_PM */ |
| 340 | -#define ssb_ohci_suspend NULL |
| 341 | -#define ssb_ohci_resume NULL |
| 342 | -#endif /* CONFIG_PM */ |
| 343 | - |
| 344 | -static const struct ssb_device_id ssb_ohci_table[] = { |
| 345 | - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOSTDEV, SSB_ANY_REV), |
| 346 | - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOST, SSB_ANY_REV), |
| 347 | - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB20_HOST, SSB_ANY_REV), |
| 348 | - SSB_DEVTABLE_END |
| 349 | -}; |
| 350 | -MODULE_DEVICE_TABLE(ssb, ssb_ohci_table); |
| 351 | - |
| 352 | -static struct ssb_driver ssb_ohci_driver = { |
| 353 | - .name = KBUILD_MODNAME, |
| 354 | - .id_table = ssb_ohci_table, |
| 355 | - .probe = ssb_ohci_probe, |
| 356 | - .remove = ssb_ohci_remove, |
| 357 | - .suspend = ssb_ohci_suspend, |
| 358 | - .resume = ssb_ohci_resume, |
| 359 | -}; |
| 360 | |
