target/linux/brcm-2.6/patches/002-flash-map.patch

   1 diff -urN linux-2.6.19.ref/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.19/drivers/mtd/maps/bcm47xx-flash.c
   2 --- linux-2.6.19.ref/drivers/mtd/maps/bcm47xx-flash.c   1970-01-01 01:00:00.000000000 +0100
   3 +++ linux-2.6.19/drivers/mtd/maps/bcm47xx-flash.c       2006-12-04 21:33:58.000000000 +0100
   4 @@ -0,0 +1,490 @@
   5 +/*
   6 + *  Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
   7 + *  Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
   8 + *  Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
   9 + *
  10 + *  original functions for finding root filesystem from Mike Baker
  11 + *
  12 + *  This program is free software; you can redistribute  it and/or modify it
  13 + *  under  the terms of  the GNU General  Public License as published by the
  14 + *  Free Software Foundation;  either version 2 of the  License, or (at your
  15 + *  option) any later version.
  16 + *
  17 + *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
  18 + *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
  19 + *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  20 + *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
  21 + *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22 + *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
  23 + *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  24 + *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
  25 + *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26 + *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27 + *
  28 + *  You should have received a copy of the  GNU General Public License along
  29 + *  with this program; if not, write  to the Free Software Foundation, Inc.,
  30 + *  675 Mass Ave, Cambridge, MA 02139, USA.
  31 + *
  32 + *  Copyright 2001-2003, Broadcom Corporation
  33 + *  All Rights Reserved.
  34 + *
  35 + *  THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
  36 + *  KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
  37 + *  SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
  38 + *  FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
  39 + *
  40 + *  Flash mapping for BCM947XX boards
  41 + */
  42 +
  43 +#include <linux/init.h>
  44 +#include <linux/module.h>
  45 +#include <linux/types.h>
  46 +#include <linux/kernel.h>
  47 +#include <linux/wait.h>
  48 +#include <linux/autoconf.h>
  49 +#include <linux/mtd/mtd.h>
  50 +#include <linux/mtd/map.h>
  51 +#ifdef CONFIG_MTD_PARTITIONS
  52 +#include <linux/mtd/partitions.h>
  53 +#endif
  54 +#include <linux/squashfs_fs.h>
  55 +#include <linux/jffs2.h>
  56 +#include <linux/crc32.h>
  57 +#include <asm/io.h>
  58 +
  59 +#include <typedefs.h>
  60 +#include <osl.h>
  61 +#include <bcmnvram.h>
  62 +#include <bcmutils.h>
  63 +#include <sbconfig.h>
  64 +#include <sbchipc.h>
  65 +#include <sbutils.h>
  66 +#include <trxhdr.h>
  67 +
  68 +#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
  69 +#define NVRAM_SPACE 0x8000
  70 +#define WINDOW_ADDR 0x1fc00000
  71 +#define WINDOW_SIZE 0x400000
  72 +#define BUSWIDTH 2
  73 +
  74 +extern sb_t *sbh;
  75 +static struct mtd_info *bcm947xx_mtd;
  76 +
  77 +static void bcm947xx_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
  78 +{
  79 +#define MIPS_MEMCPY_ALIGN 4
  80 +       map_word ret;
  81 +       ssize_t transfer;
  82 +       ssize_t done = 0;
  83 +       if ((len >= MIPS_MEMCPY_ALIGN) && (!(from & (MIPS_MEMCPY_ALIGN - 1))) && (!(((unsigned int)to & (MIPS_MEMCPY_ALIGN - 1))))) {
  84 +               done = len & ~(MIPS_MEMCPY_ALIGN - 1);
  85 +               memcpy_fromio(to, map->virt + from, done);
  86 +       }
  87 +       while (done < len) {
  88 +               ret = map->read(map, from + done);
  89 +               transfer = len - done;
  90 +               if (transfer > map->bankwidth)
  91 +                       transfer = map->bankwidth;
  92 +               memcpy((void *)((unsigned long)to + done), &ret.x[0], transfer);
  93 +               done += transfer;
  94 +       }
  95 +}
  96 +
  97 +static struct map_info bcm947xx_map = {
  98 +       name: "Physically mapped flash",
  99 +       size: WINDOW_SIZE,
 100 +       bankwidth: BUSWIDTH,
 101 +       phys: WINDOW_ADDR,
 102 +};
 103 +
 104 +#ifdef CONFIG_MTD_PARTITIONS
 105 +
 106 +static struct mtd_partition bcm947xx_parts[] = {
 107 +       { name: "cfe",  offset: 0, size: 0, mask_flags: MTD_WRITEABLE, },
 108 +       { name: "linux", offset: 0, size: 0, },
 109 +       { name: "rootfs", offset: 0, size: 0, },
 110 +       { name: "nvram", offset: 0, size: 0, },
 111 +       { name: "OpenWrt", offset: 0, size: 0, },
 112 +       { name: NULL, },
 113 +};
 114 +
 115 +static int __init
 116 +find_cfe_size(struct mtd_info *mtd, size_t size)
 117 +{
 118 +       struct trx_header *trx;
 119 +       unsigned char buf[512];
 120 +       int off;
 121 +       size_t len;
 122 +       int blocksize;
 123 +
 124 +       trx = (struct trx_header *) buf;
 125 +
 126 +       blocksize = mtd->erasesize;
 127 +       if (blocksize < 0x10000)
 128 +               blocksize = 0x10000;
 129 +
 130 +       for (off = (128*1024); off < size; off += blocksize) {
 131 +               memset(buf, 0xe5, sizeof(buf));
 132 +
 133 +               /*
 134 +                * Read into buffer
 135 +                */
 136 +               if (mtd->read(mtd, off, sizeof(buf), &len, buf) ||
 137 +                   len != sizeof(buf))
 138 +                       continue;
 139 +
 140 +               /* found a TRX header */
 141 +               if (le32_to_cpu(trx->magic) == TRX_MAGIC) {
 142 +                       goto found;
 143 +               }
 144 +       }
 145 +
 146 +       printk(KERN_NOTICE
 147 +              "%s: Couldn't find bootloader size\n",
 148 +              mtd->name);
 149 +       return -1;
 150 +
 151 + found:
 152 +       printk(KERN_NOTICE "bootloader size: %d\n", off);
 153 +       return off;
 154 +
 155 +}
 156 +
 157 +/*
 158 + * Copied from mtdblock.c
 159 + *
 160 + * Cache stuff...
 161 + *
 162 + * Since typical flash erasable sectors are much larger than what Linux's
 163 + * buffer cache can handle, we must implement read-modify-write on flash
 164 + * sectors for each block write requests.  To avoid over-erasing flash sectors
 165 + * and to speed things up, we locally cache a whole flash sector while it is
 166 + * being written to until a different sector is required.
 167 + */
 168 +
 169 +static void erase_callback(struct erase_info *done)
 170 +{
 171 +       wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv;
 172 +       wake_up(wait_q);
 173 +}
 174 +
 175 +static int erase_write (struct mtd_info *mtd, unsigned long pos,
 176 +                       int len, const char *buf)
 177 +{
 178 +       struct erase_info erase;
 179 +       DECLARE_WAITQUEUE(wait, current);
 180 +       wait_queue_head_t wait_q;
 181 +       size_t retlen;
 182 +       int ret;
 183 +
 184 +       /*
 185 +        * First, let's erase the flash block.
 186 +        */
 187 +
 188 +       init_waitqueue_head(&wait_q);
 189 +       erase.mtd = mtd;
 190 +       erase.callback = erase_callback;
 191 +       erase.addr = pos;
 192 +       erase.len = len;
 193 +       erase.priv = (u_long)&wait_q;
 194 +
 195 +       set_current_state(TASK_INTERRUPTIBLE);
 196 +       add_wait_queue(&wait_q, &wait);
 197 +
 198 +       ret = mtd->erase(mtd, &erase);
 199 +       if (ret) {
 200 +               set_current_state(TASK_RUNNING);
 201 +               remove_wait_queue(&wait_q, &wait);
 202 +               printk (KERN_WARNING "erase of region [0x%lx, 0x%x] "
 203 +                                    "on \"%s\" failed\n",
 204 +                       pos, len, mtd->name);
 205 +               return ret;
 206 +       }
 207 +
 208 +       schedule();  /* Wait for erase to finish. */
 209 +       remove_wait_queue(&wait_q, &wait);
 210 +
 211 +       /*
 212 +        * Next, writhe data to flash.
 213 +        */
 214 +
 215 +       ret = mtd->write(mtd, pos, len, &retlen, buf);
 216 +       if (ret)
 217 +               return ret;
 218 +       if (retlen != len)
 219 +               return -EIO;
 220 +       return 0;
 221 +}
 222 +
 223 +
 224 +
 225 +
 226 +static int __init
 227 +find_root(struct mtd_info *mtd, size_t size, struct mtd_partition *part)
 228 +{
 229 +       struct trx_header trx, *trx2;
 230 +       unsigned char buf[512], *block;
 231 +       int off, blocksize;
 232 +       u32 i, crc = ~0;
 233 +       size_t len;
 234 +       struct squashfs_super_block *sb = (struct squashfs_super_block *) buf;
 235 +
 236 +       blocksize = mtd->erasesize;
 237 +       if (blocksize < 0x10000)
 238 +               blocksize = 0x10000;
 239 +
 240 +       for (off = (128*1024); off < size; off += blocksize) {
 241 +               memset(&trx, 0xe5, sizeof(trx));
 242 +
 243 +               /*
 244 +                * Read into buffer
 245 +                */
 246 +               if (mtd->read(mtd, off, sizeof(trx), &len, (char *) &trx) ||
 247 +                   len != sizeof(trx))
 248 +                       continue;
 249 +
 250 +               /* found a TRX header */
 251 +               if (le32_to_cpu(trx.magic) == TRX_MAGIC) {
 252 +                       part->offset = le32_to_cpu(trx.offsets[2]) ? :
 253 +                               le32_to_cpu(trx.offsets[1]);
 254 +                       part->size = le32_to_cpu(trx.len);
 255 +
 256 +                       part->size -= part->offset;
 257 +                       part->offset += off;
 258 +
 259 +                       goto found;
 260 +               }
 261 +       }
 262 +
 263 +       printk(KERN_NOTICE
 264 +              "%s: Couldn't find root filesystem\n",
 265 +              mtd->name);
 266 +       return -1;
 267 +
 268 + found:
 269 +       if (part->size == 0)
 270 +               return 0;
 271 +
 272 +       if (mtd->read(mtd, part->offset, sizeof(buf), &len, buf) || len != sizeof(buf))
 273 +               return 0;
 274 +
 275 +       if (*((__u32 *) buf) == SQUASHFS_MAGIC) {
 276 +               printk(KERN_INFO "%s: Filesystem type: squashfs, size=0x%x\n", mtd->name, (u32) sb->bytes_used);
 277 +
 278 +               /* Update the squashfs partition size based on the superblock info */
 279 +               part->size = sb->bytes_used;
 280 +               len = part->offset + part->size;
 281 +               len +=  (mtd->erasesize - 1);
 282 +               len &= ~(mtd->erasesize - 1);
 283 +               part->size = len - part->offset;
 284 +       } else if (*((__u16 *) buf) == JFFS2_MAGIC_BITMASK) {
 285 +               printk(KERN_INFO "%s: Filesystem type: jffs2\n", mtd->name);
 286 +
 287 +               /* Move the squashfs outside of the trx */
 288 +               part->size = 0;
 289 +       } else {
 290 +               printk(KERN_INFO "%s: Filesystem type: unknown\n", mtd->name);
 291 +               return 0;
 292 +       }
 293 +
 294 +       if (trx.len != part->offset + part->size - off) {
 295 +               /* Update the trx offsets and length */
 296 +               trx.len = part->offset + part->size - off;
 297 +
 298 +               /* Update the trx crc32 */
 299 +               for (i = (u32) &(((struct trx_header *)NULL)->flag_version); i <= trx.len; i += sizeof(buf)) {
 300 +                       if (mtd->read(mtd, off + i, sizeof(buf), &len, buf) || len != sizeof(buf))
 301 +                               return 0;
 302 +                       crc = crc32_le(crc, buf, min(sizeof(buf), trx.len - i));
 303 +               }
 304 +               trx.crc32 = crc;
 305 +
 306 +               /* read first eraseblock from the trx */
 307 +               block = kmalloc(mtd->erasesize, GFP_KERNEL);
 308 +               trx2 = (struct trx_header *) block;
 309 +               if (mtd->read(mtd, off, mtd->erasesize, &len, block) || len != mtd->erasesize) {
 310 +                       printk("Error accessing the first trx eraseblock\n");
 311 +                       return 0;
 312 +               }
 313 +
 314 +               printk("Updating TRX offsets and length:\n");
 315 +               printk("old trx = [0x%08x, 0x%08x, 0x%08x], len=0x%08x crc32=0x%08x\n", trx2->offsets[0], trx2->offsets[1], trx2->offsets[2], trx2->len, trx2->crc32);
 316 +               printk("new trx = [0x%08x, 0x%08x, 0x%08x], len=0x%08x crc32=0x%08x\n",   trx.offsets[0],   trx.offsets[1],   trx.offsets[2],   trx.len, trx.crc32);
 317 +
 318 +               /* Write updated trx header to the flash */
 319 +               memcpy(block, &trx, sizeof(trx));
 320 +               if (mtd->unlock)
 321 +                       mtd->unlock(mtd, off, mtd->erasesize);
 322 +               erase_write(mtd, off, mtd->erasesize, block);
 323 +               if (mtd->sync)
 324 +                       mtd->sync(mtd);
 325 +               kfree(block);
 326 +               printk("Done\n");
 327 +       }
 328 +
 329 +       return part->size;
 330 +}
 331 +
 332 +struct mtd_partition * __init
 333 +init_mtd_partitions(struct mtd_info *mtd, size_t size)
 334 +{
 335 +       int cfe_size;
 336 +
 337 +       if ((cfe_size = find_cfe_size(mtd,size)) < 0)
 338 +               return NULL;
 339 +
 340 +       /* boot loader */
 341 +       bcm947xx_parts[0].offset = 0;
 342 +       bcm947xx_parts[0].size   = cfe_size;
 343 +
 344 +       /* nvram */
 345 +       if (cfe_size != 384 * 1024) {
 346 +               bcm947xx_parts[3].offset = size - ROUNDUP(NVRAM_SPACE, mtd->erasesize);
 347 +               bcm947xx_parts[3].size   = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
 348 +       } else {
 349 +               /* nvram (old 128kb config partition on netgear wgt634u) */
 350 +               bcm947xx_parts[3].offset = bcm947xx_parts[0].size;
 351 +               bcm947xx_parts[3].size   = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
 352 +       }
 353 +
 354 +       /* linux (kernel and rootfs) */
 355 +       if (cfe_size != 384 * 1024) {
 356 +               bcm947xx_parts[1].offset = bcm947xx_parts[0].size;
 357 +               bcm947xx_parts[1].size   = bcm947xx_parts[3].offset -
 358 +                       bcm947xx_parts[1].offset;
 359 +       } else {
 360 +               /* do not count the elf loader, which is on one block */
 361 +               bcm947xx_parts[1].offset = bcm947xx_parts[0].size +
 362 +                       bcm947xx_parts[3].size + mtd->erasesize;
 363 +               bcm947xx_parts[1].size   = size -
 364 +                       bcm947xx_parts[0].size -
 365 +                       (2*bcm947xx_parts[3].size) -
 366 +                       mtd->erasesize;
 367 +       }
 368 +
 369 +       /* find and size rootfs */
 370 +       if (find_root(mtd,size,&bcm947xx_parts[2])==0) {
 371 +               /* entirely jffs2 */
 372 +               bcm947xx_parts[4].name = NULL;
 373 +               bcm947xx_parts[2].size = size - bcm947xx_parts[2].offset -
 374 +                               bcm947xx_parts[3].size;
 375 +       } else {
 376 +               /* legacy setup */
 377 +               /* calculate leftover flash, and assign it to the jffs2 partition */
 378 +               if (cfe_size != 384 * 1024) {
 379 +                       bcm947xx_parts[4].offset = bcm947xx_parts[2].offset +
 380 +                               bcm947xx_parts[2].size;
 381 +                       if ((bcm947xx_parts[4].offset % mtd->erasesize) > 0) {
 382 +                               bcm947xx_parts[4].offset += mtd->erasesize -
 383 +                                       (bcm947xx_parts[4].offset % mtd->erasesize);
 384 +                       }
 385 +                       bcm947xx_parts[4].size = bcm947xx_parts[3].offset -
 386 +                               bcm947xx_parts[4].offset;
 387 +               } else {
 388 +                       bcm947xx_parts[4].offset = bcm947xx_parts[2].offset +
 389 +                               bcm947xx_parts[2].size;
 390 +                       if ((bcm947xx_parts[4].offset % mtd->erasesize) > 0) {
 391 +                               bcm947xx_parts[4].offset += mtd->erasesize -
 392 +                                       (bcm947xx_parts[4].offset % mtd->erasesize);
 393 +                       }
 394 +                       bcm947xx_parts[4].size = size - bcm947xx_parts[3].size -
 395 +                               bcm947xx_parts[4].offset;
 396 +               }
 397 +       }
 398 +
 399 +       return bcm947xx_parts;
 400 +}
 401 +#endif
 402 +
 403 +int __init init_bcm947xx_map(void)
 404 +{
 405 +       uint coreidx;
 406 +       chipcregs_t *cc;
 407 +       uint32 fltype;
 408 +       uint window_addr = 0, window_size = 0;
 409 +       size_t size;
 410 +       int ret = 0;
 411 +#ifdef CONFIG_MTD_PARTITIONS
 412 +       struct mtd_partition *parts;
 413 +       int i;
 414 +#endif
 415 +
 416 +       coreidx = sb_coreidx(sbh);
 417 +
 418 +       /* Check strapping option if chipcommon exists */
 419 +       if ((cc = sb_setcore(sbh, SB_CC, 0))) {
 420 +               fltype = readl(&cc->capabilities) & CAP_FLASH_MASK;
 421 +               if (fltype == PFLASH) {
 422 +                       bcm947xx_map.map_priv_2 = 1;
 423 +                       window_addr = 0x1c000000;
 424 +                       bcm947xx_map.size = window_size = 32 * 1024 * 1024;
 425 +                       if ((readl(&cc->flash_config) & CC_CFG_DS) == 0)
 426 +                               bcm947xx_map.bankwidth = 1;
 427 +               }
 428 +       } else {
 429 +               fltype = PFLASH;
 430 +               bcm947xx_map.map_priv_2 = 0;
 431 +               window_addr = WINDOW_ADDR;
 432 +               window_size = WINDOW_SIZE;
 433 +       }
 434 +
 435 +       sb_setcoreidx(sbh, coreidx);
 436 +
 437 +       if (fltype != PFLASH) {
 438 +               printk(KERN_ERR "pflash: found no supported devices\n");
 439 +               ret = -ENODEV;
 440 +               goto fail;
 441 +       }
 442 +       bcm947xx_map.virt = ioremap(window_addr, window_size);
 443 +
 444 +       if (!bcm947xx_map.virt) {
 445 +               printk("Failed to ioremap\n");
 446 +               return -EIO;
 447 +       }
 448 +       simple_map_init(&bcm947xx_map);
 449 +
 450 +       bcm947xx_map.copy_from = bcm947xx_map_copy_from;
 451 +
 452 +       if (!(bcm947xx_mtd = do_map_probe("cfi_probe", &bcm947xx_map))) {
 453 +               printk("Failed to do_map_probe\n");
 454 +               iounmap((void *)bcm947xx_map.virt);
 455 +               return -ENXIO;
 456 +       }
 457 +
 458 +       bcm947xx_mtd->owner = THIS_MODULE;
 459 +
 460 +       size = bcm947xx_mtd->size;
 461 +
 462 +       printk(KERN_NOTICE "Flash device: 0x%x at 0x%x\n", size, WINDOW_ADDR);
 463 +
 464 +#ifdef CONFIG_MTD_PARTITIONS
 465 +       parts = init_mtd_partitions(bcm947xx_mtd, size);
 466 +       for (i = 0; parts[i].name; i++);
 467 +       ret = add_mtd_partitions(bcm947xx_mtd, parts, i);
 468 +       if (ret) {
 469 +               printk(KERN_ERR "Flash: add_mtd_partitions failed\n");
 470 +               goto fail;
 471 +       }
 472 +#endif
 473 +       return 0;
 474 +
 475 + fail:
 476 +       if (bcm947xx_mtd)
 477 +               map_destroy(bcm947xx_mtd);
 478 +       if (bcm947xx_map.virt)
 479 +               iounmap((void *)bcm947xx_map.virt);
 480 +       bcm947xx_map.virt = 0;
 481 +       return ret;
 482 +}
 483 +
 484 +void __exit cleanup_bcm947xx_map(void)
 485 +{
 486 +#ifdef CONFIG_MTD_PARTITIONS
 487 +       del_mtd_partitions(bcm947xx_mtd);
 488 +#endif
 489 +       map_destroy(bcm947xx_mtd);
 490 +       iounmap((void *)bcm947xx_map.virt);
 491 +}
 492 +
 493 +module_init(init_bcm947xx_map);
 494 +module_exit(cleanup_bcm947xx_map);
 495 diff -urN linux-2.6.19.ref/drivers/mtd/maps/Kconfig linux-2.6.19/drivers/mtd/maps/Kconfig
 496 --- linux-2.6.19.ref/drivers/mtd/maps/Kconfig   2006-11-29 22:57:37.000000000 +0100
 497 +++ linux-2.6.19/drivers/mtd/maps/Kconfig       2006-12-04 21:33:58.000000000 +0100
 498 @@ -299,6 +299,12 @@
 499           Mapping for the Flaga digital module. If you don't have one, ignore
 500           this setting.
 501
 502 +config MTD_BCM47XX
 503 +       tristate "BCM47xx flash device"
 504 +       depends on MIPS && MTD_CFI && BCM947XX
 505 +       help
 506 +         Support for the flash chips on the BCM947xx board.
 507 +
 508  config MTD_BEECH
 509         tristate "CFI Flash device mapped on IBM 405LP Beech"
 510         depends on MTD_CFI && BEECH
 511 diff -urN linux-2.6.19.ref/drivers/mtd/maps/Makefile linux-2.6.19/drivers/mtd/maps/Makefile
 512 --- linux-2.6.19.ref/drivers/mtd/maps/Makefile  2006-11-29 22:57:37.000000000 +0100
 513 +++ linux-2.6.19/drivers/mtd/maps/Makefile      2006-12-04 21:33:58.000000000 +0100
 514 @@ -29,6 +29,7 @@
 515  obj-$(CONFIG_MTD_PCMCIA)       += pcmciamtd.o
 516  obj-$(CONFIG_MTD_RPXLITE)      += rpxlite.o
 517  obj-$(CONFIG_MTD_TQM8XXL)      += tqm8xxl.o
 518 +obj-$(CONFIG_MTD_BCM47XX)      += bcm47xx-flash.o
 519  obj-$(CONFIG_MTD_SA1100)       += sa1100-flash.o
 520  obj-$(CONFIG_MTD_IPAQ)         += ipaq-flash.o
 521  obj-$(CONFIG_MTD_SBC_GXX)      += sbc_gxx.o