target/linux/generic/patches-3.0/025-bcma_backport.patch

   1 --- a/drivers/bcma/Kconfig
   2 +++ b/drivers/bcma/Kconfig
   3 @@ -13,6 +13,11 @@ config BCMA
   4           Bus driver for Broadcom specific Advanced Microcontroller Bus
   5           Architecture.
   6
   7 +# Support for Block-I/O. SELECT this from the driver that needs it.
   8 +config BCMA_BLOCKIO
   9 +       bool
  10 +       depends on BCMA
  11 +
  12  config BCMA_HOST_PCI_POSSIBLE
  13         bool
  14         depends on BCMA && PCI = y
  15 --- a/drivers/bcma/Makefile
  16 +++ b/drivers/bcma/Makefile
  17 @@ -1,4 +1,4 @@
  18 -bcma-y                                 += main.o scan.o core.o
  19 +bcma-y                                 += main.o scan.o core.o sprom.o
  20  bcma-y                                 += driver_chipcommon.o driver_chipcommon_pmu.o
  21  bcma-y                                 += driver_pci.o
  22  bcma-$(CONFIG_BCMA_HOST_PCI)           += host_pci.o
  23 --- a/drivers/bcma/bcma_private.h
  24 +++ b/drivers/bcma/bcma_private.h
  25 @@ -13,12 +13,15 @@
  26  struct bcma_bus;
  27
  28  /* main.c */
  29 -extern int bcma_bus_register(struct bcma_bus *bus);
  30 -extern void bcma_bus_unregister(struct bcma_bus *bus);
  31 +int bcma_bus_register(struct bcma_bus *bus);
  32 +void bcma_bus_unregister(struct bcma_bus *bus);
  33
  34  /* scan.c */
  35  int bcma_bus_scan(struct bcma_bus *bus);
  36
  37 +/* sprom.c */
  38 +int bcma_sprom_get(struct bcma_bus *bus);
  39 +
  40  #ifdef CONFIG_BCMA_HOST_PCI
  41  /* host_pci.c */
  42  extern int __init bcma_host_pci_init(void);
  43 --- a/drivers/bcma/core.c
  44 +++ b/drivers/bcma/core.c
  45 @@ -19,7 +19,7 @@ bool bcma_core_is_enabled(struct bcma_de
  46  }
  47  EXPORT_SYMBOL_GPL(bcma_core_is_enabled);
  48
  49 -static void bcma_core_disable(struct bcma_device *core, u32 flags)
  50 +void bcma_core_disable(struct bcma_device *core, u32 flags)
  51  {
  52         if (bcma_aread32(core, BCMA_RESET_CTL) & BCMA_RESET_CTL_RESET)
  53                 return;
  54 @@ -31,6 +31,7 @@ static void bcma_core_disable(struct bcm
  55         bcma_awrite32(core, BCMA_RESET_CTL, BCMA_RESET_CTL_RESET);
  56         udelay(1);
  57  }
  58 +EXPORT_SYMBOL_GPL(bcma_core_disable);
  59
  60  int bcma_core_enable(struct bcma_device *core, u32 flags)
  61  {
  62 --- a/drivers/bcma/driver_chipcommon_pmu.c
  63 +++ b/drivers/bcma/driver_chipcommon_pmu.c
  64 @@ -53,6 +53,7 @@ static void bcma_pmu_resources_init(stru
  65                 max_msk = 0xFFFF;
  66                 break;
  67         case 43224:
  68 +       case 43225:
  69                 break;
  70         default:
  71                 pr_err("PMU resource config unknown for device 0x%04X\n",
  72 @@ -74,6 +75,7 @@ void bcma_pmu_swreg_init(struct bcma_drv
  73         case 0x4313:
  74         case 0x4331:
  75         case 43224:
  76 +       case 43225:
  77                 break;
  78         default:
  79                 pr_err("PMU switch/regulators init unknown for device "
  80 @@ -96,11 +98,13 @@ void bcma_pmu_workarounds(struct bcma_dr
  81                 if (bus->chipinfo.rev == 0) {
  82                         pr_err("Workarounds for 43224 rev 0 not fully "
  83                                 "implemented\n");
  84 -                       bcma_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
  85 +                       bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x00F000F0);
  86                 } else {
  87                         bcma_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
  88                 }
  89                 break;
  90 +       case 43225:
  91 +               break;
  92         default:
  93                 pr_err("Workarounds unknown for device 0x%04X\n",
  94                         bus->chipinfo.id);
  95 --- a/drivers/bcma/driver_pci.c
  96 +++ b/drivers/bcma/driver_pci.c
  97 @@ -161,3 +161,27 @@ void bcma_core_pci_init(struct bcma_drv_
  98  {
  99         bcma_pcicore_serdes_workaround(pc);
 100  }
 101 +
 102 +int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core,
 103 +                         bool enable)
 104 +{
 105 +       struct pci_dev *pdev = pc->core->bus->host_pci;
 106 +       u32 coremask, tmp;
 107 +       int err;
 108 +
 109 +       err = pci_read_config_dword(pdev, BCMA_PCI_IRQMASK, &tmp);
 110 +       if (err)
 111 +               goto out;
 112 +
 113 +       coremask = BIT(core->core_index) << 8;
 114 +       if (enable)
 115 +               tmp |= coremask;
 116 +       else
 117 +               tmp &= ~coremask;
 118 +
 119 +       err = pci_write_config_dword(pdev, BCMA_PCI_IRQMASK, tmp);
 120 +
 121 +out:
 122 +       return err;
 123 +}
 124 +EXPORT_SYMBOL_GPL(bcma_core_pci_irq_ctl);
 125 --- a/drivers/bcma/host_pci.c
 126 +++ b/drivers/bcma/host_pci.c
 127 @@ -65,6 +65,54 @@ static void bcma_host_pci_write32(struct
 128         iowrite32(value, core->bus->mmio + offset);
 129  }
 130
 131 +#ifdef CONFIG_BCMA_BLOCKIO
 132 +void bcma_host_pci_block_read(struct bcma_device *core, void *buffer,
 133 +                             size_t count, u16 offset, u8 reg_width)
 134 +{
 135 +       void __iomem *addr = core->bus->mmio + offset;
 136 +       if (core->bus->mapped_core != core)
 137 +               bcma_host_pci_switch_core(core);
 138 +       switch (reg_width) {
 139 +       case sizeof(u8):
 140 +               ioread8_rep(addr, buffer, count);
 141 +               break;
 142 +       case sizeof(u16):
 143 +               WARN_ON(count & 1);
 144 +               ioread16_rep(addr, buffer, count >> 1);
 145 +               break;
 146 +       case sizeof(u32):
 147 +               WARN_ON(count & 3);
 148 +               ioread32_rep(addr, buffer, count >> 2);
 149 +               break;
 150 +       default:
 151 +               WARN_ON(1);
 152 +       }
 153 +}
 154 +
 155 +void bcma_host_pci_block_write(struct bcma_device *core, const void *buffer,
 156 +                              size_t count, u16 offset, u8 reg_width)
 157 +{
 158 +       void __iomem *addr = core->bus->mmio + offset;
 159 +       if (core->bus->mapped_core != core)
 160 +               bcma_host_pci_switch_core(core);
 161 +       switch (reg_width) {
 162 +       case sizeof(u8):
 163 +               iowrite8_rep(addr, buffer, count);
 164 +               break;
 165 +       case sizeof(u16):
 166 +               WARN_ON(count & 1);
 167 +               iowrite16_rep(addr, buffer, count >> 1);
 168 +               break;
 169 +       case sizeof(u32):
 170 +               WARN_ON(count & 3);
 171 +               iowrite32_rep(addr, buffer, count >> 2);
 172 +               break;
 173 +       default:
 174 +               WARN_ON(1);
 175 +       }
 176 +}
 177 +#endif
 178 +
 179  static u32 bcma_host_pci_aread32(struct bcma_device *core, u16 offset)
 180  {
 181         if (core->bus->mapped_core != core)
 182 @@ -87,6 +135,10 @@ const struct bcma_host_ops bcma_host_pci
 183         .write8         = bcma_host_pci_write8,
 184         .write16        = bcma_host_pci_write16,
 185         .write32        = bcma_host_pci_write32,
 186 +#ifdef CONFIG_BCMA_BLOCKIO
 187 +       .block_read     = bcma_host_pci_block_read,
 188 +       .block_write    = bcma_host_pci_block_write,
 189 +#endif
 190         .aread32        = bcma_host_pci_aread32,
 191         .awrite32       = bcma_host_pci_awrite32,
 192  };
 193 @@ -175,6 +227,7 @@ static DEFINE_PCI_DEVICE_TABLE(bcma_pci_
 194         { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x0576) },
 195         { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4331) },
 196         { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4353) },
 197 +       { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4357) },
 198         { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4727) },
 199         { 0, },
 200  };
 201 --- a/drivers/bcma/main.c
 202 +++ b/drivers/bcma/main.c
 203 @@ -7,6 +7,7 @@
 204
 205  #include "bcma_private.h"
 206  #include <linux/bcma/bcma.h>
 207 +#include <linux/slab.h>
 208
 209  MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
 210  MODULE_LICENSE("GPL");
 211 @@ -89,6 +90,8 @@ static int bcma_register_cores(struct bc
 212                 switch (bus->hosttype) {
 213                 case BCMA_HOSTTYPE_PCI:
 214                         core->dev.parent = &bus->host_pci->dev;
 215 +                       core->dma_dev = &bus->host_pci->dev;
 216 +                       core->irq = bus->host_pci->irq;
 217                         break;
 218                 case BCMA_HOSTTYPE_NONE:
 219                 case BCMA_HOSTTYPE_SDIO:
 220 @@ -144,6 +147,13 @@ int bcma_bus_register(struct bcma_bus *b
 221                 bcma_core_pci_init(&bus->drv_pci);
 222         }
 223
 224 +       /* Try to get SPROM */
 225 +       err = bcma_sprom_get(bus);
 226 +       if (err) {
 227 +               pr_err("Failed to get SPROM: %d\n", err);
 228 +               return -ENOENT;
 229 +       }
 230 +
 231         /* Register found cores */
 232         bcma_register_cores(bus);
 233
 234 @@ -151,13 +161,11 @@ int bcma_bus_register(struct bcma_bus *b
 235
 236         return 0;
 237  }
 238 -EXPORT_SYMBOL_GPL(bcma_bus_register);
 239
 240  void bcma_bus_unregister(struct bcma_bus *bus)
 241  {
 242         bcma_unregister_cores(bus);
 243  }
 244 -EXPORT_SYMBOL_GPL(bcma_bus_unregister);
 245
 246  int __bcma_driver_register(struct bcma_driver *drv, struct module *owner)
 247  {
 248 --- /dev/null
 249 +++ b/drivers/bcma/sprom.c
 250 @@ -0,0 +1,162 @@
 251 +/*
 252 + * Broadcom specific AMBA
 253 + * SPROM reading
 254 + *
 255 + * Licensed under the GNU/GPL. See COPYING for details.
 256 + */
 257 +
 258 +#include "bcma_private.h"
 259 +
 260 +#include <linux/bcma/bcma.h>
 261 +#include <linux/bcma/bcma_regs.h>
 262 +#include <linux/pci.h>
 263 +#include <linux/io.h>
 264 +#include <linux/dma-mapping.h>
 265 +#include <linux/slab.h>
 266 +
 267 +#define SPOFF(offset)  ((offset) / sizeof(u16))
 268 +
 269 +/**************************************************
 270 + * R/W ops.
 271 + **************************************************/
 272 +
 273 +static void bcma_sprom_read(struct bcma_bus *bus, u16 *sprom)
 274 +{
 275 +       int i;
 276 +       for (i = 0; i < SSB_SPROMSIZE_WORDS_R4; i++)
 277 +               sprom[i] = bcma_read16(bus->drv_cc.core,
 278 +                                      BCMA_CC_SPROM + (i * 2));
 279 +}
 280 +
 281 +/**************************************************
 282 + * Validation.
 283 + **************************************************/
 284 +
 285 +static inline u8 bcma_crc8(u8 crc, u8 data)
 286 +{
 287 +       /* Polynomial:   x^8 + x^7 + x^6 + x^4 + x^2 + 1   */
 288 +       static const u8 t[] = {
 289 +               0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B,
 290 +               0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21,
 291 +               0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF,
 292 +               0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5,
 293 +               0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14,
 294 +               0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E,
 295 +               0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80,
 296 +               0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA,
 297 +               0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95,
 298 +               0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF,
 299 +               0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01,
 300 +               0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B,
 301 +               0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA,
 302 +               0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0,
 303 +               0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E,
 304 +               0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34,
 305 +               0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0,
 306 +               0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A,
 307 +               0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54,
 308 +               0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E,
 309 +               0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF,
 310 +               0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5,
 311 +               0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B,
 312 +               0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61,
 313 +               0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E,
 314 +               0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74,
 315 +               0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA,
 316 +               0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0,
 317 +               0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41,
 318 +               0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B,
 319 +               0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5,
 320 +               0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F,
 321 +       };
 322 +       return t[crc ^ data];
 323 +}
 324 +
 325 +static u8 bcma_sprom_crc(const u16 *sprom)
 326 +{
 327 +       int word;
 328 +       u8 crc = 0xFF;
 329 +
 330 +       for (word = 0; word < SSB_SPROMSIZE_WORDS_R4 - 1; word++) {
 331 +               crc = bcma_crc8(crc, sprom[word] & 0x00FF);
 332 +               crc = bcma_crc8(crc, (sprom[word] & 0xFF00) >> 8);
 333 +       }
 334 +       crc = bcma_crc8(crc, sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & 0x00FF);
 335 +       crc ^= 0xFF;
 336 +
 337 +       return crc;
 338 +}
 339 +
 340 +static int bcma_sprom_check_crc(const u16 *sprom)
 341 +{
 342 +       u8 crc;
 343 +       u8 expected_crc;
 344 +       u16 tmp;
 345 +
 346 +       crc = bcma_sprom_crc(sprom);
 347 +       tmp = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & SSB_SPROM_REVISION_CRC;
 348 +       expected_crc = tmp >> SSB_SPROM_REVISION_CRC_SHIFT;
 349 +       if (crc != expected_crc)
 350 +               return -EPROTO;
 351 +
 352 +       return 0;
 353 +}
 354 +
 355 +static int bcma_sprom_valid(const u16 *sprom)
 356 +{
 357 +       u16 revision;
 358 +       int err;
 359 +
 360 +       err = bcma_sprom_check_crc(sprom);
 361 +       if (err)
 362 +               return err;
 363 +
 364 +       revision = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & SSB_SPROM_REVISION_REV;
 365 +       if (revision != 8) {
 366 +               pr_err("Unsupported SPROM revision: %d\n", revision);
 367 +               return -ENOENT;
 368 +       }
 369 +
 370 +       return 0;
 371 +}
 372 +
 373 +/**************************************************
 374 + * SPROM extraction.
 375 + **************************************************/
 376 +
 377 +static void bcma_sprom_extract_r8(struct bcma_bus *bus, const u16 *sprom)
 378 +{
 379 +       u16 v;
 380 +       int i;
 381 +
 382 +       for (i = 0; i < 3; i++) {
 383 +               v = sprom[SPOFF(SSB_SPROM8_IL0MAC) + i];
 384 +               *(((__be16 *)bus->sprom.il0mac) + i) = cpu_to_be16(v);
 385 +       }
 386 +}
 387 +
 388 +int bcma_sprom_get(struct bcma_bus *bus)
 389 +{
 390 +       u16 *sprom;
 391 +       int err = 0;
 392 +
 393 +       if (!bus->drv_cc.core)
 394 +               return -EOPNOTSUPP;
 395 +
 396 +       sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16),
 397 +                       GFP_KERNEL);
 398 +       if (!sprom)
 399 +               return -ENOMEM;
 400 +
 401 +       bcma_sprom_read(bus, sprom);
 402 +
 403 +       err = bcma_sprom_valid(sprom);
 404 +       if (err)
 405 +               goto out;
 406 +
 407 +       bcma_sprom_extract_r8(bus, sprom);
 408 +
 409 +out:
 410 +       kfree(sprom);
 411 +       return err;
 412 +}
 413 --- a/include/linux/bcma/bcma.h
 414 +++ b/include/linux/bcma/bcma.h
 415 @@ -6,6 +6,7 @@
 416
 417  #include <linux/bcma/bcma_driver_chipcommon.h>
 418  #include <linux/bcma/bcma_driver_pci.h>
 419 +#include <linux/ssb/ssb.h> /* SPROM sharing */
 420
 421  #include "bcma_regs.h"
 422
 423 @@ -31,6 +32,12 @@ struct bcma_host_ops {
 424         void (*write8)(struct bcma_device *core, u16 offset, u8 value);
 425         void (*write16)(struct bcma_device *core, u16 offset, u16 value);
 426         void (*write32)(struct bcma_device *core, u16 offset, u32 value);
 427 +#ifdef CONFIG_BCMA_BLOCKIO
 428 +       void (*block_read)(struct bcma_device *core, void *buffer,
 429 +                          size_t count, u16 offset, u8 reg_width);
 430 +       void (*block_write)(struct bcma_device *core, const void *buffer,
 431 +                           size_t count, u16 offset, u8 reg_width);
 432 +#endif
 433         /* Agent ops */
 434         u32 (*aread32)(struct bcma_device *core, u16 offset);
 435         void (*awrite32)(struct bcma_device *core, u16 offset, u32 value);
 436 @@ -117,6 +124,8 @@ struct bcma_device {
 437         struct bcma_device_id id;
 438
 439         struct device dev;
 440 +       struct device *dma_dev;
 441 +       unsigned int irq;
 442         bool dev_registered;
 443
 444         u8 core_index;
 445 @@ -179,6 +188,10 @@ struct bcma_bus {
 446
 447         struct bcma_drv_cc drv_cc;
 448         struct bcma_drv_pci drv_pci;
 449 +
 450 +       /* We decided to share SPROM struct with SSB as long as we do not need
 451 +        * any hacks for BCMA. This simplifies drivers code. */
 452 +       struct ssb_sprom sprom;
 453  };
 454
 455  extern inline u32 bcma_read8(struct bcma_device *core, u16 offset)
 456 @@ -208,6 +221,18 @@ void bcma_write32(struct bcma_device *co
 457  {
 458         core->bus->ops->write32(core, offset, value);
 459  }
 460 +#ifdef CONFIG_BCMA_BLOCKIO
 461 +extern inline void bcma_block_read(struct bcma_device *core, void *buffer,
 462 +                                  size_t count, u16 offset, u8 reg_width)
 463 +{
 464 +       core->bus->ops->block_read(core, buffer, count, offset, reg_width);
 465 +}
 466 +extern inline void bcma_block_write(struct bcma_device *core, const void *buffer,
 467 +                                   size_t count, u16 offset, u8 reg_width)
 468 +{
 469 +       core->bus->ops->block_write(core, buffer, count, offset, reg_width);
 470 +}
 471 +#endif
 472  extern inline u32 bcma_aread32(struct bcma_device *core, u16 offset)
 473  {
 474         return core->bus->ops->aread32(core, offset);
 475 @@ -219,6 +244,7 @@ void bcma_awrite32(struct bcma_device *c
 476  }
 477
 478  extern bool bcma_core_is_enabled(struct bcma_device *core);
 479 +extern void bcma_core_disable(struct bcma_device *core, u32 flags);
 480  extern int bcma_core_enable(struct bcma_device *core, u32 flags);
 481
 482  #endif /* LINUX_BCMA_H_ */
 483 --- a/include/linux/bcma/bcma_driver_chipcommon.h
 484 +++ b/include/linux/bcma/bcma_driver_chipcommon.h
 485 @@ -244,6 +244,7 @@
 486  #define BCMA_CC_REGCTL_DATA            0x065C
 487  #define BCMA_CC_PLLCTL_ADDR            0x0660
 488  #define BCMA_CC_PLLCTL_DATA            0x0664
 489 +#define BCMA_CC_SPROM                  0x0830 /* SPROM beginning */
 490
 491  /* Data for the PMU, if available.
 492   * Check availability with ((struct bcma_chipcommon)->capabilities & BCMA_CC_CAP_PMU)
 493 --- a/include/linux/bcma/bcma_driver_pci.h
 494 +++ b/include/linux/bcma/bcma_driver_pci.h
 495 @@ -85,5 +85,7 @@ struct bcma_drv_pci {
 496  #define pcicore_write32(pc, offset, val)       bcma_write32((pc)->core, offset, val)
 497
 498  extern void bcma_core_pci_init(struct bcma_drv_pci *pc);
 499 +extern int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc,
 500 +                                struct bcma_device *core, bool enable);
 501
 502  #endif /* LINUX_BCMA_DRIVER_PCI_H_ */