Root/target/linux/brcm47xx/patches-3.2/0017-mtd-bcm47xx-add-bcm47xx-part-parser.patch

1From d50d2d8e3ab5446f791deff0cb78820989ed93e7 Mon Sep 17 00:00:00 2001
2From: Hauke Mehrtens <hauke@hauke-m.de>
3Date: Sun, 17 Jul 2011 14:54:11 +0200
4Subject: [PATCH 06/19] mtd: bcm47xx: add bcm47xx part parser
5
6
7Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
8---
9 drivers/mtd/Kconfig | 7 +
10 drivers/mtd/Makefile | 1 +
11 drivers/mtd/bcm47xxpart.c | 542 +++++++++++++++++++++++++++++++++++++++++++++
12 3 files changed, 550 insertions(+), 0 deletions(-)
13 create mode 100644 drivers/mtd/bcm47xxpart.c
14
15--- a/drivers/mtd/Kconfig
16+++ b/drivers/mtd/Kconfig
17@@ -164,6 +164,13 @@ config MTD_MYLOADER_PARTS
18       You will still need the parsing functions to be called by the driver
19       for your particular device. It won't happen automatically.
20 
21+config MTD_BCM47XX_PARTS
22+ tristate "BCM47XX partitioning support"
23+ default y
24+ depends on BCM47XX
25+ ---help---
26+ bcm47XX partitioning support
27+
28 comment "User Modules And Translation Layers"
29 
30 config MTD_CHAR
31--- a/drivers/mtd/Makefile
32+++ b/drivers/mtd/Makefile
33@@ -12,6 +12,7 @@ obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdli
34 obj-$(CONFIG_MTD_AFS_PARTS) += afs.o
35 obj-$(CONFIG_MTD_AR7_PARTS) += ar7part.o
36 obj-$(CONFIG_MTD_MYLOADER_PARTS) += myloader.o
37+obj-$(CONFIG_MTD_BCM47XX_PARTS) += bcm47xxpart.o
38 
39 # 'Users' - code which presents functionality to userspace.
40 obj-$(CONFIG_MTD_CHAR) += mtdchar.o
41--- /dev/null
42+++ b/drivers/mtd/bcm47xxpart.c
43@@ -0,0 +1,542 @@
44+/*
45+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
46+ * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
47+ * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
48+ *
49+ * original functions for finding root filesystem from Mike Baker
50+ *
51+ * This program is free software; you can redistribute it and/or modify it
52+ * under the terms of the GNU General Public License as published by the
53+ * Free Software Foundation; either version 2 of the License, or (at your
54+ * option) any later version.
55+ *
56+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
57+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
58+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
59+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
60+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
61+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
62+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
63+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
64+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
65+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
66+ *
67+ * You should have received a copy of the GNU General Public License along
68+ * with this program; if not, write to the Free Software Foundation, Inc.,
69+ * 675 Mass Ave, Cambridge, MA 02139, USA.
70+ *
71+ * Copyright 2001-2003, Broadcom Corporation
72+ * All Rights Reserved.
73+ *
74+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
75+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
76+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
77+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
78+ *
79+ * Flash mapping for BCM947XX boards
80+ */
81+
82+#define pr_fmt(fmt) "bcm47xx_part: " fmt
83+#include <linux/init.h>
84+#include <linux/module.h>
85+#include <linux/types.h>
86+#include <linux/kernel.h>
87+#include <linux/sched.h>
88+#include <linux/wait.h>
89+#include <linux/mtd/mtd.h>
90+#include <linux/mtd/partitions.h>
91+#include <linux/crc32.h>
92+#include <linux/io.h>
93+#include <asm/mach-bcm47xx/nvram.h>
94+#include <asm/mach-bcm47xx/bcm47xx.h>
95+#include <asm/fw/cfe/cfe_api.h>
96+
97+
98+#define TRX_MAGIC 0x30524448 /* "HDR0" */
99+#define TRX_VERSION 1
100+#define TRX_MAX_LEN 0x3A0000
101+#define TRX_NO_HEADER 1 /* Do not write TRX header */
102+#define TRX_GZ_FILES 0x2 /* Contains up to TRX_MAX_OFFSET individual gzip files */
103+#define TRX_MAX_OFFSET 3
104+
105+struct trx_header {
106+ u32 magic; /* "HDR0" */
107+ u32 len; /* Length of file including header */
108+ u32 crc32; /* 32-bit CRC from flag_version to end of file */
109+ u32 flag_version; /* 0:15 flags, 16:31 version */
110+ u32 offsets[TRX_MAX_OFFSET]; /* Offsets of partitions from start of header */
111+};
112+
113+/* for Edimax Print servers which use an additional header
114+ * then the firmware on flash looks like :
115+ * EDIMAX HEADER | TRX HEADER
116+ * As this header is 12 bytes long we have to handle it
117+ * and skip it to find the TRX header
118+ */
119+#define EDIMAX_PS_HEADER_MAGIC 0x36315350 /* "PS16" */
120+#define EDIMAX_PS_HEADER_LEN 0xc /* 12 bytes long for edimax header */
121+
122+#define NVRAM_SPACE 0x8000
123+
124+#define ROUTER_NETGEAR_WGR614L 1
125+#define ROUTER_NETGEAR_WNR834B 2
126+#define ROUTER_NETGEAR_WNDR3300 3
127+#define ROUTER_NETGEAR_WNR3500L 4
128+#define ROUTER_SIMPLETECH_SIMPLESHARE 5
129+#define ROUTER_NETGEAR_WNDR3400 6
130+
131+static int
132+find_cfe_size(struct mtd_info *mtd)
133+{
134+ struct trx_header *trx;
135+ unsigned char buf[512];
136+ int off;
137+ size_t len;
138+ int blocksize;
139+
140+ trx = (struct trx_header *) buf;
141+
142+ blocksize = mtd->erasesize;
143+ if (blocksize < 0x10000)
144+ blocksize = 0x10000;
145+
146+ for (off = (128*1024); off < mtd->size; off += blocksize) {
147+ memset(buf, 0xe5, sizeof(buf));
148+
149+ /*
150+ * Read into buffer
151+ */
152+ if (mtd->read(mtd, off, sizeof(buf), &len, buf) ||
153+ len != sizeof(buf))
154+ continue;
155+
156+ if (le32_to_cpu(trx->magic) == EDIMAX_PS_HEADER_MAGIC) {
157+ if (mtd->read(mtd, off + EDIMAX_PS_HEADER_LEN,
158+ sizeof(buf), &len, buf) || len != sizeof(buf)) {
159+ continue;
160+ } else {
161+ pr_notice("Found edimax header\n");
162+ }
163+ }
164+
165+ /* found a TRX header */
166+ if (le32_to_cpu(trx->magic) == TRX_MAGIC)
167+ goto found;
168+ }
169+
170+ pr_notice("%s: Couldn't find bootloader size\n", mtd->name);
171+ return -1;
172+
173+ found:
174+ pr_notice("bootloader size: %d\n", off);
175+ return off;
176+
177+}
178+
179+/*
180+ * Copied from mtdblock.c
181+ *
182+ * Cache stuff...
183+ *
184+ * Since typical flash erasable sectors are much larger than what Linux's
185+ * buffer cache can handle, we must implement read-modify-write on flash
186+ * sectors for each block write requests. To avoid over-erasing flash sectors
187+ * and to speed things up, we locally cache a whole flash sector while it is
188+ * being written to until a different sector is required.
189+ */
190+
191+static void erase_callback(struct erase_info *done)
192+{
193+ wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv;
194+ wake_up(wait_q);
195+}
196+
197+static int erase_write(struct mtd_info *mtd, unsigned long pos,
198+ int len, const char *buf)
199+{
200+ struct erase_info erase;
201+ DECLARE_WAITQUEUE(wait, current);
202+ wait_queue_head_t wait_q;
203+ size_t retlen;
204+ int ret;
205+
206+ /*
207+ * First, let's erase the flash block.
208+ */
209+
210+ init_waitqueue_head(&wait_q);
211+ erase.mtd = mtd;
212+ erase.callback = erase_callback;
213+ erase.addr = pos;
214+ erase.len = len;
215+ erase.priv = (u_long)&wait_q;
216+
217+ set_current_state(TASK_INTERRUPTIBLE);
218+ add_wait_queue(&wait_q, &wait);
219+
220+ ret = mtd->erase(mtd, &erase);
221+ if (ret) {
222+ set_current_state(TASK_RUNNING);
223+ remove_wait_queue(&wait_q, &wait);
224+ pr_warn("erase of region [0x%lx, 0x%x] on \"%s\" failed\n",
225+ pos, len, mtd->name);
226+ return ret;
227+ }
228+
229+ schedule(); /* Wait for erase to finish. */
230+ remove_wait_queue(&wait_q, &wait);
231+
232+ /*
233+ * Next, write data to flash.
234+ */
235+
236+ ret = mtd->write(mtd, pos, len, &retlen, buf);
237+ if (ret)
238+ return ret;
239+ if (retlen != len)
240+ return -EIO;
241+ return 0;
242+}
243+
244+
245+static int
246+find_dual_image_off(struct mtd_info *mtd)
247+{
248+ struct trx_header trx;
249+ int off, blocksize;
250+ size_t len;
251+
252+ blocksize = mtd->erasesize;
253+ if (blocksize < 0x10000)
254+ blocksize = 0x10000;
255+
256+ for (off = (128*1024); off < mtd->size; off += blocksize) {
257+ memset(&trx, 0xe5, sizeof(trx));
258+ /*
259+ * Read into buffer
260+ */
261+ if (mtd->read(mtd, off, sizeof(trx), &len, (char *) &trx) ||
262+ len != sizeof(trx))
263+ continue;
264+ /* found last TRX header */
265+ if (le32_to_cpu(trx.magic) == TRX_MAGIC) {
266+ if (le32_to_cpu(trx.flag_version >> 16) == 2) {
267+ pr_notice("dual image TRX header found\n");
268+ return mtd->size / 2;
269+ } else {
270+ return 0;
271+ }
272+ }
273+ }
274+ return 0;
275+}
276+
277+
278+static int
279+find_root(struct mtd_info *mtd, struct mtd_partition *part)
280+{
281+ struct trx_header trx, *trx2;
282+ unsigned char buf[512], *block;
283+ int off, blocksize, trxoff = 0;
284+ u32 i, crc = ~0;
285+ size_t len;
286+ bool edimax = false;
287+
288+ blocksize = mtd->erasesize;
289+ if (blocksize < 0x10000)
290+ blocksize = 0x10000;
291+
292+ for (off = (128*1024); off < mtd->size; off += blocksize) {
293+ memset(&trx, 0xe5, sizeof(trx));
294+
295+ /*
296+ * Read into buffer
297+ */
298+ if (mtd->read(mtd, off, sizeof(trx), &len, (char *) &trx) ||
299+ len != sizeof(trx))
300+ continue;
301+
302+ /* found an edimax header */
303+ if (le32_to_cpu(trx.magic) == EDIMAX_PS_HEADER_MAGIC) {
304+ /* read the correct trx header */
305+ if (mtd->read(mtd, off + EDIMAX_PS_HEADER_LEN,
306+ sizeof(trx), &len, (char *) &trx) ||
307+ len != sizeof(trx)) {
308+ continue;
309+ } else {
310+ pr_notice("Found an edimax ps header\n");
311+ edimax = true;
312+ }
313+ }
314+
315+ /* found a TRX header */
316+ if (le32_to_cpu(trx.magic) == TRX_MAGIC) {
317+ part->offset = le32_to_cpu(trx.offsets[2]) ? :
318+ le32_to_cpu(trx.offsets[1]);
319+ part->size = le32_to_cpu(trx.len);
320+
321+ part->size -= part->offset;
322+ part->offset += off;
323+ if (edimax) {
324+ off += EDIMAX_PS_HEADER_LEN;
325+ trxoff = EDIMAX_PS_HEADER_LEN;
326+ }
327+
328+ goto found;
329+ }
330+ }
331+
332+ pr_warn("%s: Couldn't find root filesystem\n",
333+ mtd->name);
334+ return -1;
335+
336+ found:
337+ pr_notice("TRX offset : %x\n", trxoff);
338+ if (part->size == 0)
339+ return 0;
340+
341+ if (mtd->read(mtd, part->offset, sizeof(buf), &len, buf) || len != sizeof(buf))
342+ return 0;
343+
344+ /* Move the fs outside of the trx */
345+ part->size = 0;
346+
347+ if (trx.len != part->offset + part->size - off) {
348+ /* Update the trx offsets and length */
349+ trx.len = part->offset + part->size - off;
350+
351+ /* Update the trx crc32 */
352+ for (i = (u32) &(((struct trx_header *)NULL)->flag_version); i <= trx.len; i += sizeof(buf)) {
353+ if (mtd->read(mtd, off + i, sizeof(buf), &len, buf) || len != sizeof(buf))
354+ return 0;
355+ crc = crc32_le(crc, buf, min(sizeof(buf), trx.len - i));
356+ }
357+ trx.crc32 = crc;
358+
359+ /* read first eraseblock from the trx */
360+ block = kmalloc(mtd->erasesize, GFP_KERNEL);
361+ trx2 = (struct trx_header *) block;
362+ if (mtd->read(mtd, off - trxoff, mtd->erasesize, &len, block) || len != mtd->erasesize) {
363+ pr_err("Error accessing the first trx eraseblock\n");
364+ return 0;
365+ }
366+
367+ pr_notice("Updating TRX offsets and length:\n");
368+ pr_notice("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);
369+ pr_notice("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);
370+
371+ /* Write updated trx header to the flash */
372+ memcpy(block + trxoff, &trx, sizeof(trx));
373+ if (mtd->unlock)
374+ mtd->unlock(mtd, off - trxoff, mtd->erasesize);
375+ erase_write(mtd, off - trxoff, mtd->erasesize, block);
376+ if (mtd->sync)
377+ mtd->sync(mtd);
378+ kfree(block);
379+ pr_notice("Done\n");
380+ }
381+
382+ return part->size;
383+}
384+
385+static int get_router(void)
386+{
387+ char buf[20];
388+ u32 boardnum = 0;
389+ u16 boardtype = 0;
390+ u16 boardrev = 0;
391+ u32 boardflags = 0;
392+ u16 sdram_init = 0;
393+ u16 cardbus = 0;
394+ u16 strev = 0;
395+
396+ if (nvram_getenv("boardnum", buf, sizeof(buf)) >= 0)
397+ boardnum = simple_strtoul(buf, NULL, 0);
398+ if (nvram_getenv("boardtype", buf, sizeof(buf)) >= 0)
399+ boardtype = simple_strtoul(buf, NULL, 0);
400+ if (nvram_getenv("boardrev", buf, sizeof(buf)) >= 0)
401+ boardrev = simple_strtoul(buf, NULL, 0);
402+ if (nvram_getenv("boardflags", buf, sizeof(buf)) >= 0)
403+ boardflags = simple_strtoul(buf, NULL, 0);
404+ if (nvram_getenv("sdram_init", buf, sizeof(buf)) >= 0)
405+ sdram_init = simple_strtoul(buf, NULL, 0);
406+ if (nvram_getenv("cardbus", buf, sizeof(buf)) >= 0)
407+ cardbus = simple_strtoul(buf, NULL, 0);
408+ if (nvram_getenv("st_rev", buf, sizeof(buf)) >= 0)
409+ strev = simple_strtoul(buf, NULL, 0);
410+
411+ if ((boardnum == 8 || boardnum == 01)
412+ && boardtype == 0x0472 && cardbus == 1) {
413+ /* Netgear WNR834B, Netgear WNR834Bv2 */
414+ return ROUTER_NETGEAR_WNR834B;
415+ }
416+
417+ if (boardnum == 01 && boardtype == 0x0472 && boardrev == 0x23) {
418+ /* Netgear WNDR-3300 */
419+ return ROUTER_NETGEAR_WNDR3300;
420+ }
421+
422+ if ((boardnum == 83258 || boardnum == 01)
423+ && boardtype == 0x048e
424+ && (boardrev == 0x11 || boardrev == 0x10)
425+ && boardflags == 0x750
426+ && sdram_init == 0x000A) {
427+ /* Netgear WGR614v8/L/WW 16MB ram, cfe v1.3 or v1.5 */
428+ return ROUTER_NETGEAR_WGR614L;
429+ }
430+
431+ if ((boardnum == 1 || boardnum == 3500)
432+ && boardtype == 0x04CF
433+ && (boardrev == 0x1213 || boardrev == 02)) {
434+ /* Netgear WNR3500v2/U/L */
435+ return ROUTER_NETGEAR_WNR3500L;
436+ }
437+
438+ if (boardnum == 1 && boardtype == 0xb4cf && boardrev == 0x1100) {
439+ /* Netgear WNDR3400 */
440+ return ROUTER_NETGEAR_WNDR3400;
441+ }
442+
443+ if (boardtype == 0x042f
444+ && boardrev == 0x10
445+ && boardflags == 0
446+ && strev == 0x11) {
447+ /* Simpletech Simpleshare */
448+ return ROUTER_SIMPLETECH_SIMPLESHARE;
449+ }
450+
451+ return 0;
452+}
453+
454+static int parse_bcm47xx_partitions(struct mtd_info *mtd,
455+ struct mtd_partition **pparts,
456+ struct mtd_part_parser_data *data)
457+{
458+ int cfe_size;
459+ int dual_image_offset = 0;
460+ /* e.g Netgear 0x003e0000-0x003f0000 : "board_data", we exclude this
461+ * part from our mapping to prevent overwriting len/checksum on e.g.
462+ * Netgear WGR614v8/L/WW
463+ */
464+ int custom_data_size = 0;
465+ struct mtd_partition *bcm47xx_parts;
466+
467+ cfe_size = find_cfe_size(mtd);
468+ if (cfe_size < 0)
469+ return 0;
470+
471+ bcm47xx_parts = kzalloc(sizeof(struct mtd_partition) * 6, GFP_KERNEL);
472+
473+ bcm47xx_parts[0].name = "cfe";
474+ bcm47xx_parts[1].name = "linux";
475+ bcm47xx_parts[2].name = "rootfs";
476+ bcm47xx_parts[3].name = "nvram";
477+
478+ /* boot loader */
479+ bcm47xx_parts[0].mask_flags = MTD_WRITEABLE;
480+ bcm47xx_parts[0].offset = 0;
481+ bcm47xx_parts[0].size = cfe_size;
482+
483+ /* nvram */
484+ if (cfe_size != 384 * 1024) {
485+
486+ switch (get_router()) {
487+ case ROUTER_NETGEAR_WGR614L:
488+ case ROUTER_NETGEAR_WNR834B:
489+ case ROUTER_NETGEAR_WNDR3300:
490+ case ROUTER_NETGEAR_WNR3500L:
491+ case ROUTER_NETGEAR_WNDR3400:
492+ /* Netgear: checksum is @ 0x003AFFF8 for 4M flash or checksum
493+ * is @ 0x007AFFF8 for 8M flash
494+ */
495+ custom_data_size = mtd->erasesize;
496+
497+ bcm47xx_parts[3].offset = mtd->size - roundup(NVRAM_SPACE, mtd->erasesize);
498+ bcm47xx_parts[3].size = roundup(NVRAM_SPACE, mtd->erasesize);
499+
500+ /* Place CFE board_data into a partition */
501+ bcm47xx_parts[4].name = "board_data";
502+ bcm47xx_parts[4].offset = bcm47xx_parts[3].offset - custom_data_size;
503+ bcm47xx_parts[4].size = custom_data_size;
504+ break;
505+
506+ case ROUTER_SIMPLETECH_SIMPLESHARE:
507+ /* Fixup Simpletech Simple share nvram */
508+
509+ pr_notice("Setting up simpletech nvram\n");
510+ custom_data_size = mtd->erasesize;
511+
512+ bcm47xx_parts[3].offset = mtd->size - roundup(NVRAM_SPACE, mtd->erasesize) * 2;
513+ bcm47xx_parts[3].size = roundup(NVRAM_SPACE, mtd->erasesize);
514+
515+ /* Place backup nvram into a partition */
516+ bcm47xx_parts[4].name = "nvram_copy";
517+ bcm47xx_parts[4].offset = mtd->size - roundup(NVRAM_SPACE, mtd->erasesize);
518+ bcm47xx_parts[4].size = roundup(NVRAM_SPACE, mtd->erasesize);
519+ break;
520+
521+ default:
522+ bcm47xx_parts[3].offset = mtd->size - roundup(NVRAM_SPACE, mtd->erasesize);
523+ bcm47xx_parts[3].size = roundup(NVRAM_SPACE, mtd->erasesize);
524+ }
525+
526+ } else {
527+ /* nvram (old 128kb config partition on netgear wgt634u) */
528+ bcm47xx_parts[3].offset = bcm47xx_parts[0].size;
529+ bcm47xx_parts[3].size = roundup(NVRAM_SPACE, mtd->erasesize);
530+ }
531+
532+ /* dual image offset*/
533+ pr_notice("Looking for dual image\n");
534+ dual_image_offset = find_dual_image_off(mtd);
535+ /* linux (kernel and rootfs) */
536+ if (cfe_size != 384 * 1024) {
537+ if (get_router() == ROUTER_SIMPLETECH_SIMPLESHARE) {
538+ bcm47xx_parts[1].offset = bcm47xx_parts[0].size;
539+ bcm47xx_parts[1].size = bcm47xx_parts[4].offset - dual_image_offset -
540+ bcm47xx_parts[1].offset - custom_data_size;
541+ } else {
542+ bcm47xx_parts[1].offset = bcm47xx_parts[0].size;
543+ bcm47xx_parts[1].size = bcm47xx_parts[3].offset - dual_image_offset -
544+ bcm47xx_parts[1].offset - custom_data_size;
545+ }
546+ } else {
547+ /* do not count the elf loader, which is on one block */
548+ bcm47xx_parts[1].offset = bcm47xx_parts[0].size +
549+ bcm47xx_parts[3].size + mtd->erasesize;
550+ bcm47xx_parts[1].size = mtd->size -
551+ bcm47xx_parts[0].size -
552+ (2*bcm47xx_parts[3].size) -
553+ mtd->erasesize - custom_data_size;
554+ }
555+
556+ /* find and size rootfs */
557+ find_root(mtd, &bcm47xx_parts[2]);
558+ bcm47xx_parts[2].size = mtd->size - dual_image_offset -
559+ bcm47xx_parts[2].offset -
560+ bcm47xx_parts[3].size - custom_data_size;
561+ *pparts = bcm47xx_parts;
562+ return bcm47xx_parts[4].name == NULL ? 4 : 5;
563+}
564+
565+static struct mtd_part_parser bcm47xx_parser = {
566+ .owner = THIS_MODULE,
567+ .parse_fn = parse_bcm47xx_partitions,
568+ .name = "bcm47xx",
569+};
570+
571+static int __init bcm47xx_parser_init(void)
572+{
573+ return register_mtd_parser(&bcm47xx_parser);
574+}
575+
576+static void __exit bcm47xx_parser_exit(void)
577+{
578+ deregister_mtd_parser(&bcm47xx_parser);
579+}
580+
581+module_init(bcm47xx_parser_init);
582+module_exit(bcm47xx_parser_exit);
583+
584+MODULE_LICENSE("GPL");
585+MODULE_DESCRIPTION("Parsing code for flash partitions on bcm47xx SoCs");
586

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release_2010-11-17
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release_2012-03-18
release_2012-04-09
release_2012-10-11
uclibc_nptl



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