openwrt/target/linux/brcm63xx-2.6/patches/002-pci_bcm96348.patch

   1 diff -Naurp linux-2.6.16.7-generic-patched/arch/mips/pci/Makefile linux-2.6.16.7-patched/arch/mips/pci/Makefile
   2 --- linux-2.6.16.7-generic-patched/arch/mips/pci/Makefile       2006-04-17 23:53:25.000000000 +0200
   3 +++ linux-2.6.16.7-patched/arch/mips/pci/Makefile       2006-07-05 15:21:58.000000000 +0200
   4 @@ -18,6 +18,7 @@ obj-$(CONFIG_MIPS_NILE4)      += ops-nile4.o
   5  obj-$(CONFIG_MIPS_TX3927)      += ops-tx3927.o
   6  obj-$(CONFIG_PCI_VR41XX)       += ops-vr41xx.o pci-vr41xx.o
   7  obj-$(CONFIG_NEC_CMBVR4133)    += fixup-vr4133.o
   8 +obj-$(CONFIG_BCM_PCI)          += fixup-bcm96348.o pci-bcm96348.o ops-bcm96348.o
   9
  10  #
  11  # These are still pretty much in the old state, watch, go blind.
  12 diff -Naurp linux-2.6.16.7-generic-patched/arch/mips/pci/fixup-bcm96348.c linux-2.6.16.7-patched/arch/mips/pci/fixup-bcm96348.c
  13 --- linux-2.6.16.7-generic-patched/arch/mips/pci/fixup-bcm96348.c       1970-01-01 01:00:00.000000000 +0100
  14 +++ linux-2.6.16.7-patched/arch/mips/pci/fixup-bcm96348.c       2006-07-05 15:21:58.000000000 +0200
  15 @@ -0,0 +1,85 @@
  16 +/*
  17 +<:copyright-gpl
  18 + Copyright 2002 Broadcom Corp. All Rights Reserved.
  19 +
  20 + This program is free software; you can distribute it and/or modify it
  21 + under the terms of the GNU General Public License (Version 2) as
  22 + published by the Free Software Foundation.
  23 +
  24 + This program is distributed in the hope it will be useful, but WITHOUT
  25 + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  26 + FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  27 + for more details.
  28 +
  29 + You should have received a copy of the GNU General Public License along
  30 + with this program; if not, write to the Free Software Foundation, Inc.,
  31 + 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  32 +:>
  33 +*/
  34 +#include <linux/init.h>
  35 +#include <linux/types.h>
  36 +#include <linux/pci.h>
  37 +
  38 +#include <bcmpci.h>
  39 +#include <bcm_intr.h>
  40 +#include <bcm_map_part.h>
  41 +
  42 +static volatile MpiRegisters * mpi = (MpiRegisters *)(MPI_BASE);
  43 +
  44 +static char irq_tab_bcm96348[] __initdata = {
  45 +    [0] = INTERRUPT_ID_MPI,
  46 +    [1] = INTERRUPT_ID_MPI,
  47 +#if defined(CONFIG_USB)
  48 +    [USB_HOST_SLOT] = INTERRUPT_ID_USBH
  49 +#endif
  50 +};
  51 +
  52 +int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  53 +{
  54 +    return irq_tab_bcm96348[slot];
  55 +}
  56 +
  57 +static void bcm96348_fixup(struct pci_dev *dev)
  58 +{
  59 +    uint32 memaddr;
  60 +    uint32 size;
  61 +
  62 +    memaddr = pci_resource_start(dev, 0);
  63 +    size = pci_resource_len(dev, 0);
  64 +
  65 +    switch (PCI_SLOT(dev->devfn)) {
  66 +        case 0:
  67 +            // UBUS to PCI address range
  68 +            // Memory Window 1. Mask determines which bits are decoded.
  69 +            mpi->l2pmrange1 = ~(size-1);
  70 +            // UBUS to PCI Memory base address. This is akin to the ChipSelect base
  71 +            // register.
  72 +            mpi->l2pmbase1 = memaddr & BCM_PCI_ADDR_MASK;
  73 +            // UBUS to PCI Remap Address. Replaces the masked address bits in the
  74 +            // range register with this setting.
  75 +            // Also, enable direct I/O and direct Memory accesses
  76 +            mpi->l2pmremap1 = (memaddr | MEM_WINDOW_EN);
  77 +            break;
  78 +
  79 +        case 1:
  80 +            // Memory Window 2
  81 +            mpi->l2pmrange2 = ~(size-1);
  82 +            // UBUS to PCI Memory base address.
  83 +            mpi->l2pmbase2 = memaddr & BCM_PCI_ADDR_MASK;
  84 +            // UBUS to PCI Remap Address
  85 +            mpi->l2pmremap2 = (memaddr | MEM_WINDOW_EN);
  86 +            break;
  87 +
  88 +#if defined(CONFIG_USB)
  89 +        case USB_HOST_SLOT:
  90 +            dev->resource[0].start = USB_HOST_BASE;
  91 +            dev->resource[0].end = USB_HOST_BASE+USB_BAR0_MEM_SIZE-1;
  92 +            break;
  93 +#endif
  94 +    }
  95 +}
  96 +
  97 +struct pci_fixup pcibios_fixups[] = {
  98 +    { PCI_FIXUP_FINAL, PCI_ANY_ID, PCI_ANY_ID, bcm96348_fixup },
  99 +    {0}
 100 +};
 101 diff -Naurp linux-2.6.16.7-generic-patched/arch/mips/pci/ops-bcm96348.c linux-2.6.16.7-patched/arch/mips/pci/ops-bcm96348.c
 102 --- linux-2.6.16.7-generic-patched/arch/mips/pci/ops-bcm96348.c 1970-01-01 01:00:00.000000000 +0100
 103 +++ linux-2.6.16.7-patched/arch/mips/pci/ops-bcm96348.c 2006-07-05 15:21:58.000000000 +0200
 104 @@ -0,0 +1,276 @@
 105 +/*
 106 +<:copyright-gpl
 107 + Copyright 2002 Broadcom Corp. All Rights Reserved.
 108 +
 109 + This program is free software; you can distribute it and/or modify it
 110 + under the terms of the GNU General Public License (Version 2) as
 111 + published by the Free Software Foundation.
 112 +
 113 + This program is distributed in the hope it will be useful, but WITHOUT
 114 + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 115 + FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 116 + for more details.
 117 +
 118 + You should have received a copy of the GNU General Public License along
 119 + with this program; if not, write to the Free Software Foundation, Inc.,
 120 + 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
 121 +:>
 122 +*/
 123 +#include <linux/types.h>
 124 +#include <linux/pci.h>
 125 +#include <linux/kernel.h>
 126 +#include <linux/init.h>
 127 +#include <asm/addrspace.h>
 128 +
 129 +#include <bcm_intr.h>
 130 +#include <bcm_map_part.h>
 131 +#include <bcmpci.h>
 132 +
 133 +#include <linux/delay.h>
 134 +
 135 +#if defined(CONFIG_USB)
 136 +#if 0
 137 +#define DPRINT(x...)        printk(x)
 138 +#else
 139 +#define DPRINT(x...)
 140 +#endif
 141 +
 142 +static int
 143 +pci63xx_int_read(unsigned int devfn, int where, u32 * value, int size);
 144 +static int
 145 +pci63xx_int_write(unsigned int devfn, int where, u32 * value, int size);
 146 +
 147 +static bool usb_mem_size_rd = FALSE;
 148 +static uint32 usb_mem_base = 0;
 149 +static uint32 usb_cfg_space_cmd_reg = 0;
 150 +#endif
 151 +static bool pci_mem_size_rd = FALSE;
 152 +
 153 +static volatile MpiRegisters * mpi = (MpiRegisters *)(MPI_BASE);
 154 +
 155 +static void mpi_SetupPciConfigAccess(uint32 addr)
 156 +{
 157 +    mpi->l2pcfgctl = (DIR_CFG_SEL | DIR_CFG_USEREG | addr) & ~CONFIG_TYPE;
 158 +}
 159 +
 160 +static void mpi_ClearPciConfigAccess(void)
 161 +{
 162 +    mpi->l2pcfgctl = 0x00000000;
 163 +}
 164 +
 165 +#if defined(CONFIG_USB)
 166 +/* --------------------------------------------------------------------------
 167 +    Name: pci63xx_int_write
 168 +Abstract: PCI Config write on internal device(s)
 169 + -------------------------------------------------------------------------- */
 170 +static int
 171 +pci63xx_int_write(unsigned int devfn, int where, u32 * value, int size)
 172 +{
 173 +    if (PCI_SLOT(devfn) != USB_HOST_SLOT) {
 174 +        return PCIBIOS_SUCCESSFUL;
 175 +    }
 176 +
 177 +    switch (size) {
 178 +        case 1:
 179 +            DPRINT("W => Slot: %d Where: %2X Len: %d Data: %02X\n",
 180 +                PCI_SLOT(devfn), where, size, *value);
 181 +            break;
 182 +        case 2:
 183 +            DPRINT("W => Slot: %d Where: %2X Len: %d Data: %04X\n",
 184 +                PCI_SLOT(devfn), where, size, *value);
 185 +            switch (where) {
 186 +                case PCI_COMMAND:
 187 +                    usb_cfg_space_cmd_reg = *value;
 188 +                    break;
 189 +                default:
 190 +                    break;
 191 +            }
 192 +            break;
 193 +        case 4:
 194 +            DPRINT("W => Slot: %d Where: %2X Len: %d Data: %08lX\n",
 195 +                PCI_SLOT(devfn), where, size, *value);
 196 +            switch (where) {
 197 +                case PCI_BASE_ADDRESS_0:
 198 +                    if (*value == 0xffffffff) {
 199 +                        usb_mem_size_rd = TRUE;
 200 +                    } else {
 201 +                        usb_mem_base = *value;
 202 +                    }
 203 +                    break;
 204 +                default:
 205 +                    break;
 206 +            }
 207 +            break;
 208 +        default:
 209 +            break;
 210 +    }
 211 +
 212 +    return PCIBIOS_SUCCESSFUL;
 213 +}
 214 +
 215 +/* --------------------------------------------------------------------------
 216 +    Name: pci63xx_int_read
 217 +Abstract: PCI Config read on internal device(s)
 218 + -------------------------------------------------------------------------- */
 219 +static int
 220 +pci63xx_int_read(unsigned int devfn, int where, u32 * value, int size)
 221 +{
 222 +    uint32 retValue = 0xFFFFFFFF;
 223 +
 224 +    if (PCI_SLOT(devfn) != USB_HOST_SLOT) {
 225 +        return PCIBIOS_SUCCESSFUL;
 226 +    }
 227 +
 228 +    // For now, this is specific to the USB Host controller. We can
 229 +    // make it more general if we have to...
 230 +    // Emulate PCI Config accesses
 231 +    switch (where) {
 232 +        case PCI_VENDOR_ID:
 233 +        case PCI_DEVICE_ID:
 234 +            retValue = PCI_VENDOR_ID_BROADCOM | 0x63000000;
 235 +            break;
 236 +        case PCI_COMMAND:
 237 +        case PCI_STATUS:
 238 +            retValue = (0x0006 << 16) | usb_cfg_space_cmd_reg;
 239 +            break;
 240 +        case PCI_CLASS_REVISION:
 241 +        case PCI_CLASS_DEVICE:
 242 +            retValue = (PCI_CLASS_SERIAL_USB << 16) | (0x10 << 8) | 0x01;
 243 +            break;
 244 +        case PCI_BASE_ADDRESS_0:
 245 +            if (usb_mem_size_rd) {
 246 +                retValue = USB_BAR0_MEM_SIZE;
 247 +            } else {
 248 +                if (usb_mem_base != 0)
 249 +                    retValue = usb_mem_base;
 250 +                else
 251 +                    retValue = USB_HOST_BASE;
 252 +            }
 253 +            usb_mem_size_rd = FALSE;
 254 +            break;
 255 +        case PCI_CACHE_LINE_SIZE:
 256 +        case PCI_LATENCY_TIMER:
 257 +            retValue = 0;
 258 +            break;
 259 +        case PCI_HEADER_TYPE:
 260 +            retValue = PCI_HEADER_TYPE_NORMAL;
 261 +            break;
 262 +        case PCI_SUBSYSTEM_VENDOR_ID:
 263 +            retValue = PCI_VENDOR_ID_BROADCOM;
 264 +            break;
 265 +        case PCI_SUBSYSTEM_ID:
 266 +            retValue = 0x6300;
 267 +            break;
 268 +        case PCI_INTERRUPT_LINE:
 269 +            retValue = INTERRUPT_ID_USBH;
 270 +            break;
 271 +        default:
 272 +            break;
 273 +    }
 274 +
 275 +    switch (size) {
 276 +        case 1:
 277 +            *value = (retValue >> ((where & 3) << 3)) & 0xff;
 278 +            DPRINT("R <= Slot: %d Where: %2X Len: %d Data: %02X\n",
 279 +                PCI_SLOT(devfn), where, size, *value);
 280 +            break;
 281 +        case 2:
 282 +            *value = (retValue >> ((where & 3) << 3)) & 0xffff;
 283 +            DPRINT("R <= Slot: %d Where: %2X Len: %d Data: %04X\n",
 284 +                PCI_SLOT(devfn), where, size, *value);
 285 +            break;
 286 +        case 4:
 287 +            *value = retValue;
 288 +            DPRINT("R <= Slot: %d Where: %2X Len: %d Data: %08lX\n",
 289 +                PCI_SLOT(devfn), where, size, *value);
 290 +            break;
 291 +        default:
 292 +            break;
 293 +    }
 294 +
 295 +    return PCIBIOS_SUCCESSFUL;
 296 +}
 297 +#endif
 298 +
 299 +static int bcm96348_pcibios_read(struct pci_bus *bus, unsigned int devfn,
 300 +       int where, int size, u32 * val)
 301 +{
 302 +    volatile unsigned char *ioBase = (unsigned char *)(mpi->l2piobase | KSEG1);
 303 +    uint32 data;
 304 +
 305 +#if defined(CONFIG_USB)
 306 +    if (PCI_SLOT(devfn) == USB_HOST_SLOT)
 307 +        return pci63xx_int_read(devfn, where, val, size);
 308 +#endif
 309 +
 310 +    mpi_SetupPciConfigAccess(BCM_PCI_CFG(PCI_SLOT(devfn), PCI_FUNC(devfn), where));
 311 +    data = *(uint32 *)ioBase;
 312 +    switch(size) {
 313 +        case 1:
 314 +            *val = (data >> ((where & 3) << 3)) & 0xff;
 315 +            break;
 316 +        case 2:
 317 +            *val = (data >> ((where & 3) << 3)) & 0xffff;
 318 +            break;
 319 +        case 4:
 320 +            *val = data;
 321 +             /* Special case for reading PCI device range */
 322 +            if ((where >= PCI_BASE_ADDRESS_0) && (where <= PCI_BASE_ADDRESS_5)) {
 323 +                if (pci_mem_size_rd) {
 324 +                    /* bcm6348 PCI memory window minimum size is 64K */
 325 +                    *val &= PCI_SIZE_64K;
 326 +                }
 327 +            }
 328 +            break;
 329 +        default:
 330 +            break;
 331 +    }
 332 +    pci_mem_size_rd = FALSE;
 333 +    mpi_ClearPciConfigAccess();
 334 +
 335 +    return PCIBIOS_SUCCESSFUL;
 336 +}
 337 +
 338 +static int bcm96348_pcibios_write(struct pci_bus *bus, unsigned int devfn,
 339 +       int where, int size, u32 val)
 340 +{
 341 +    volatile unsigned char *ioBase = (unsigned char *)(mpi->l2piobase | KSEG1);
 342 +    uint32 data;
 343 +
 344 +#if defined(CONFIG_USB)
 345 +    if (PCI_SLOT(devfn) == USB_HOST_SLOT)
 346 +        return pci63xx_int_write(devfn, where, &val, size);
 347 +#endif
 348 +    mpi_SetupPciConfigAccess(BCM_PCI_CFG(PCI_SLOT(devfn), PCI_FUNC(devfn), where));
 349 +    data = *(uint32 *)ioBase;
 350 +    switch(size) {
 351 +        case 1:
 352 +            data = (data & ~(0xff << ((where & 3) << 3))) |
 353 +                (val << ((where & 3) << 3));
 354 +            break;
 355 +        case 2:
 356 +            data = (data & ~(0xffff << ((where & 3) << 3))) |
 357 +                (val << ((where & 3) << 3));
 358 +            break;
 359 +        case 4:
 360 +            data = val;
 361 +            /* Special case for reading PCI device range */
 362 +            if ((where >= PCI_BASE_ADDRESS_0) && (where <= PCI_BASE_ADDRESS_5)) {
 363 +                if (val == 0xffffffff)
 364 +                    pci_mem_size_rd = TRUE;
 365 +            }
 366 +            break;
 367 +        default:
 368 +            break;
 369 +    }
 370 +    *(uint32 *)ioBase = data;
 371 +    udelay(500);
 372 +    mpi_ClearPciConfigAccess();
 373 +
 374 +    return PCIBIOS_SUCCESSFUL;
 375 +}
 376 +
 377 +struct pci_ops bcm96348_pci_ops = {
 378 +    .read   = bcm96348_pcibios_read,
 379 +    .write  = bcm96348_pcibios_write
 380 +};
 381 diff -Naurp linux-2.6.16.7-generic-patched/arch/mips/pci/pci-bcm96348.c linux-2.6.16.7-patched/arch/mips/pci/pci-bcm96348.c
 382 --- linux-2.6.16.7-generic-patched/arch/mips/pci/pci-bcm96348.c 1970-01-01 01:00:00.000000000 +0100
 383 +++ linux-2.6.16.7-patched/arch/mips/pci/pci-bcm96348.c 2006-07-05 15:21:58.000000000 +0200
 384 @@ -0,0 +1,54 @@
 385 +/*
 386 +<:copyright-gpl
 387 + Copyright 2002 Broadcom Corp. All Rights Reserved.
 388 +
 389 + This program is free software; you can distribute it and/or modify it
 390 + under the terms of the GNU General Public License (Version 2) as
 391 + published by the Free Software Foundation.
 392 +
 393 + This program is distributed in the hope it will be useful, but WITHOUT
 394 + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 395 + FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 396 + for more details.
 397 +
 398 + You should have received a copy of the GNU General Public License along
 399 + with this program; if not, write to the Free Software Foundation, Inc.,
 400 + 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
 401 +:>
 402 +*/
 403 +#include <linux/types.h>
 404 +#include <linux/pci.h>
 405 +#include <linux/kernel.h>
 406 +#include <linux/init.h>
 407 +
 408 +#include <asm/pci_channel.h>
 409 +#include <bcmpci.h>
 410 +
 411 +static struct resource bcm_pci_io_resource = {
 412 +    .name   = "bcm96348 pci IO space",
 413 +    .start  = BCM_PCI_IO_BASE,
 414 +    .end    = BCM_PCI_IO_BASE + BCM_PCI_IO_SIZE_64KB - 1,
 415 +    .flags  = IORESOURCE_IO
 416 +};
 417 +
 418 +static struct resource bcm_pci_mem_resource = {
 419 +    .name   = "bcm96348 pci memory space",
 420 +    .start  = BCM_PCI_MEM_BASE,
 421 +    .end    = BCM_PCI_MEM_BASE + BCM_PCI_MEM_SIZE_16MB - 1,
 422 +    .flags  = IORESOURCE_MEM
 423 +};
 424 +
 425 +extern struct pci_ops bcm96348_pci_ops;
 426 +
 427 +struct pci_controller bcm96348_controller = {
 428 +    .pci_ops   = &bcm96348_pci_ops,
 429 +    .io_resource       = &bcm_pci_io_resource,
 430 +    .mem_resource      = &bcm_pci_mem_resource,
 431 +};
 432 +
 433 +static void bcm96348_pci_init(void)
 434 +{
 435 +    register_pci_controller(&bcm96348_controller);
 436 +}
 437 +
 438 +arch_initcall(bcm96348_pci_init);