Root/target/linux/brcm47xx/patches-3.0/0017-mtd-bcm47xx-add-bcm47xx-part-parser.patch

1From 1934b89b42976a083c2ad8d8fdc526ab5b05c5e4 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 17/26] 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 | 536 +++++++++++++++++++++++++++++++++++++++++++++
12 3 files changed, 544 insertions(+), 0 deletions(-)
13 create mode 100644 drivers/mtd/bcm47xxpart.c
14
15--- a/drivers/mtd/Kconfig
16+++ b/drivers/mtd/Kconfig
17@@ -173,6 +173,13 @@ 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 +1,536 @@
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+
130+static struct mtd_partition bcm47xx_parts[] = {
131+ { name: "cfe", offset:0, size:0, mask_flags:MTD_WRITEABLE, },
132+ { name: "linux", offset:0, size:0, },
133+ { name: "rootfs", offset:0, size:0, },
134+ { name: "nvram", offset:0, size:0, },
135+ { name: NULL, }, /* Used to create custom partitons with the function get_router() */
136+ { name: NULL, },
137+};
138+
139+static int
140+find_cfe_size(struct mtd_info *mtd)
141+{
142+ struct trx_header *trx;
143+ unsigned char buf[512];
144+ int off;
145+ size_t len;
146+ int blocksize;
147+
148+ trx = (struct trx_header *) buf;
149+
150+ blocksize = mtd->erasesize;
151+ if (blocksize < 0x10000)
152+ blocksize = 0x10000;
153+
154+ for (off = (128*1024); off < mtd->size; off += blocksize) {
155+ memset(buf, 0xe5, sizeof(buf));
156+
157+ /*
158+ * Read into buffer
159+ */
160+ if (mtd->read(mtd, off, sizeof(buf), &len, buf) ||
161+ len != sizeof(buf))
162+ continue;
163+
164+ if (le32_to_cpu(trx->magic) == EDIMAX_PS_HEADER_MAGIC) {
165+ if (mtd->read(mtd, off + EDIMAX_PS_HEADER_LEN,
166+ sizeof(buf), &len, buf) || len != sizeof(buf)) {
167+ continue;
168+ } else {
169+ pr_notice("Found edimax header\n");
170+ }
171+ }
172+
173+ /* found a TRX header */
174+ if (le32_to_cpu(trx->magic) == TRX_MAGIC)
175+ goto found;
176+ }
177+
178+ pr_notice("%s: Couldn't find bootloader size\n", mtd->name);
179+ return -1;
180+
181+ found:
182+ pr_notice("bootloader size: %d\n", off);
183+ return off;
184+
185+}
186+
187+/*
188+ * Copied from mtdblock.c
189+ *
190+ * Cache stuff...
191+ *
192+ * Since typical flash erasable sectors are much larger than what Linux's
193+ * buffer cache can handle, we must implement read-modify-write on flash
194+ * sectors for each block write requests. To avoid over-erasing flash sectors
195+ * and to speed things up, we locally cache a whole flash sector while it is
196+ * being written to until a different sector is required.
197+ */
198+
199+static void erase_callback(struct erase_info *done)
200+{
201+ wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv;
202+ wake_up(wait_q);
203+}
204+
205+static int erase_write(struct mtd_info *mtd, unsigned long pos,
206+ int len, const char *buf)
207+{
208+ struct erase_info erase;
209+ DECLARE_WAITQUEUE(wait, current);
210+ wait_queue_head_t wait_q;
211+ size_t retlen;
212+ int ret;
213+
214+ /*
215+ * First, let's erase the flash block.
216+ */
217+
218+ init_waitqueue_head(&wait_q);
219+ erase.mtd = mtd;
220+ erase.callback = erase_callback;
221+ erase.addr = pos;
222+ erase.len = len;
223+ erase.priv = (u_long)&wait_q;
224+
225+ set_current_state(TASK_INTERRUPTIBLE);
226+ add_wait_queue(&wait_q, &wait);
227+
228+ ret = mtd->erase(mtd, &erase);
229+ if (ret) {
230+ set_current_state(TASK_RUNNING);
231+ remove_wait_queue(&wait_q, &wait);
232+ pr_warn("erase of region [0x%lx, 0x%x] on \"%s\" failed\n",
233+ pos, len, mtd->name);
234+ return ret;
235+ }
236+
237+ schedule(); /* Wait for erase to finish. */
238+ remove_wait_queue(&wait_q, &wait);
239+
240+ /*
241+ * Next, write data to flash.
242+ */
243+
244+ ret = mtd->write(mtd, pos, len, &retlen, buf);
245+ if (ret)
246+ return ret;
247+ if (retlen != len)
248+ return -EIO;
249+ return 0;
250+}
251+
252+
253+static int
254+find_dual_image_off(struct mtd_info *mtd)
255+{
256+ struct trx_header trx;
257+ int off, blocksize;
258+ size_t len;
259+
260+ blocksize = mtd->erasesize;
261+ if (blocksize < 0x10000)
262+ blocksize = 0x10000;
263+
264+ for (off = (128*1024); off < mtd->size; off += blocksize) {
265+ memset(&trx, 0xe5, sizeof(trx));
266+ /*
267+ * Read into buffer
268+ */
269+ if (mtd->read(mtd, off, sizeof(trx), &len, (char *) &trx) ||
270+ len != sizeof(trx))
271+ continue;
272+ /* found last TRX header */
273+ if (le32_to_cpu(trx.magic) == TRX_MAGIC) {
274+ if (le32_to_cpu(trx.flag_version >> 16) == 2) {
275+ pr_notice("dual image TRX header found\n");
276+ return mtd->size / 2;
277+ } else {
278+ return 0;
279+ }
280+ }
281+ }
282+ return 0;
283+}
284+
285+
286+static int
287+find_root(struct mtd_info *mtd, struct mtd_partition *part)
288+{
289+ struct trx_header trx, *trx2;
290+ unsigned char buf[512], *block;
291+ int off, blocksize, trxoff = 0;
292+ u32 i, crc = ~0;
293+ size_t len;
294+ bool edimax = false;
295+
296+ blocksize = mtd->erasesize;
297+ if (blocksize < 0x10000)
298+ blocksize = 0x10000;
299+
300+ for (off = (128*1024); off < mtd->size; off += blocksize) {
301+ memset(&trx, 0xe5, sizeof(trx));
302+
303+ /*
304+ * Read into buffer
305+ */
306+ if (mtd->read(mtd, off, sizeof(trx), &len, (char *) &trx) ||
307+ len != sizeof(trx))
308+ continue;
309+
310+ /* found an edimax header */
311+ if (le32_to_cpu(trx.magic) == EDIMAX_PS_HEADER_MAGIC) {
312+ /* read the correct trx header */
313+ if (mtd->read(mtd, off + EDIMAX_PS_HEADER_LEN,
314+ sizeof(trx), &len, (char *) &trx) ||
315+ len != sizeof(trx)) {
316+ continue;
317+ } else {
318+ pr_notice("Found an edimax ps header\n");
319+ edimax = true;
320+ }
321+ }
322+
323+ /* found a TRX header */
324+ if (le32_to_cpu(trx.magic) == TRX_MAGIC) {
325+ part->offset = le32_to_cpu(trx.offsets[2]) ? :
326+ le32_to_cpu(trx.offsets[1]);
327+ part->size = le32_to_cpu(trx.len);
328+
329+ part->size -= part->offset;
330+ part->offset += off;
331+ if (edimax) {
332+ off += EDIMAX_PS_HEADER_LEN;
333+ trxoff = EDIMAX_PS_HEADER_LEN;
334+ }
335+
336+ goto found;
337+ }
338+ }
339+
340+ pr_warn("%s: Couldn't find root filesystem\n",
341+ mtd->name);
342+ return -1;
343+
344+ found:
345+ pr_notice("TRX offset : %x\n", trxoff);
346+ if (part->size == 0)
347+ return 0;
348+
349+ if (mtd->read(mtd, part->offset, sizeof(buf), &len, buf) || len != sizeof(buf))
350+ return 0;
351+
352+ /* Move the fs outside of the trx */
353+ part->size = 0;
354+
355+ if (trx.len != part->offset + part->size - off) {
356+ /* Update the trx offsets and length */
357+ trx.len = part->offset + part->size - off;
358+
359+ /* Update the trx crc32 */
360+ for (i = (u32) &(((struct trx_header *)NULL)->flag_version); i <= trx.len; i += sizeof(buf)) {
361+ if (mtd->read(mtd, off + i, sizeof(buf), &len, buf) || len != sizeof(buf))
362+ return 0;
363+ crc = crc32_le(crc, buf, min(sizeof(buf), trx.len - i));
364+ }
365+ trx.crc32 = crc;
366+
367+ /* read first eraseblock from the trx */
368+ block = kmalloc(mtd->erasesize, GFP_KERNEL);
369+ trx2 = (struct trx_header *) block;
370+ if (mtd->read(mtd, off - trxoff, mtd->erasesize, &len, block) || len != mtd->erasesize) {
371+ pr_err("Error accessing the first trx eraseblock\n");
372+ return 0;
373+ }
374+
375+ pr_notice("Updating TRX offsets and length:\n");
376+ 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);
377+ 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);
378+
379+ /* Write updated trx header to the flash */
380+ memcpy(block + trxoff, &trx, sizeof(trx));
381+ if (mtd->unlock)
382+ mtd->unlock(mtd, off - trxoff, mtd->erasesize);
383+ erase_write(mtd, off - trxoff, mtd->erasesize, block);
384+ if (mtd->sync)
385+ mtd->sync(mtd);
386+ kfree(block);
387+ pr_notice("Done\n");
388+ }
389+
390+ return part->size;
391+}
392+
393+static int get_router(void)
394+{
395+ char buf[20];
396+ u32 boardnum = 0;
397+ u16 boardtype = 0;
398+ u16 boardrev = 0;
399+ u32 boardflags = 0;
400+ u16 sdram_init = 0;
401+ u16 cardbus = 0;
402+ u16 strev = 0;
403+
404+ if (nvram_getenv("boardnum", buf, sizeof(buf)) >= 0)
405+ boardnum = simple_strtoul(buf, NULL, 0);
406+ if (nvram_getenv("boardtype", buf, sizeof(buf)) >= 0)
407+ boardtype = simple_strtoul(buf, NULL, 0);
408+ if (nvram_getenv("boardrev", buf, sizeof(buf)) >= 0)
409+ boardrev = simple_strtoul(buf, NULL, 0);
410+ if (nvram_getenv("boardflags", buf, sizeof(buf)) >= 0)
411+ boardflags = simple_strtoul(buf, NULL, 0);
412+ if (nvram_getenv("sdram_init", buf, sizeof(buf)) >= 0)
413+ sdram_init = simple_strtoul(buf, NULL, 0);
414+ if (nvram_getenv("cardbus", buf, sizeof(buf)) >= 0)
415+ cardbus = simple_strtoul(buf, NULL, 0);
416+ if (nvram_getenv("st_rev", buf, sizeof(buf)) >= 0)
417+ strev = simple_strtoul(buf, NULL, 0);
418+
419+ if ((boardnum == 8 || boardnum == 01)
420+ && boardtype == 0x0472 && cardbus == 1) {
421+ /* Netgear WNR834B, Netgear WNR834Bv2 */
422+ return ROUTER_NETGEAR_WNR834B;
423+ }
424+
425+ if (boardnum == 01 && boardtype == 0x0472 && boardrev == 0x23) {
426+ /* Netgear WNDR-3300 */
427+ return ROUTER_NETGEAR_WNDR3300;
428+ }
429+
430+ if ((boardnum == 83258 || boardnum == 01)
431+ && boardtype == 0x048e
432+ && (boardrev == 0x11 || boardrev == 0x10)
433+ && boardflags == 0x750
434+ && sdram_init == 0x000A) {
435+ /* Netgear WGR614v8/L/WW 16MB ram, cfe v1.3 or v1.5 */
436+ return ROUTER_NETGEAR_WGR614L;
437+ }
438+
439+ if ((boardnum == 1 || boardnum == 3500)
440+ && boardtype == 0x04CF
441+ && (boardrev == 0x1213 || boardrev == 02)) {
442+ /* Netgear WNR3500v2/U/L */
443+ return ROUTER_NETGEAR_WNR3500L;
444+ }
445+
446+ if (boardtype == 0x042f
447+ && boardrev == 0x10
448+ && boardflags == 0
449+ && strev == 0x11) {
450+ /* Simpletech Simpleshare */
451+ return ROUTER_SIMPLETECH_SIMPLESHARE;
452+ }
453+
454+ return 0;
455+}
456+
457+static int parse_bcm47xx_partitions(struct mtd_info *mtd,
458+ struct mtd_partition **pparts,
459+// struct mtd_part_parser_data *data)
460+ unsigned long data)
461+{
462+ int cfe_size;
463+ int dual_image_offset = 0;
464+ /* e.g Netgear 0x003e0000-0x003f0000 : "board_data", we exclude this
465+ * part from our mapping to prevent overwriting len/checksum on e.g.
466+ * Netgear WGR614v8/L/WW
467+ */
468+ int custom_data_size = 0;
469+
470+ cfe_size = find_cfe_size(mtd);
471+ if (cfe_size < 0)
472+ return 0;
473+
474+ /* boot loader */
475+ bcm47xx_parts[0].offset = 0;
476+ bcm47xx_parts[0].size = cfe_size;
477+
478+ /* nvram */
479+ if (cfe_size != 384 * 1024) {
480+
481+ switch (get_router()) {
482+ case ROUTER_NETGEAR_WGR614L:
483+ case ROUTER_NETGEAR_WNR834B:
484+ case ROUTER_NETGEAR_WNDR3300:
485+ case ROUTER_NETGEAR_WNR3500L:
486+ /* Netgear: checksum is @ 0x003AFFF8 for 4M flash or checksum
487+ * is @ 0x007AFFF8 for 8M flash
488+ */
489+ custom_data_size = mtd->erasesize;
490+
491+ bcm47xx_parts[3].offset = mtd->size - roundup(NVRAM_SPACE, mtd->erasesize);
492+ bcm47xx_parts[3].size = roundup(NVRAM_SPACE, mtd->erasesize);
493+
494+ /* Place CFE board_data into a partition */
495+ bcm47xx_parts[4].name = "board_data";
496+ bcm47xx_parts[4].offset = bcm47xx_parts[3].offset - custom_data_size;
497+ bcm47xx_parts[4].size = custom_data_size;
498+ break;
499+
500+ case ROUTER_SIMPLETECH_SIMPLESHARE:
501+ /* Fixup Simpletech Simple share nvram */
502+
503+ pr_notice("Setting up simpletech nvram\n");
504+ custom_data_size = mtd->erasesize;
505+
506+ bcm47xx_parts[3].offset = mtd->size - roundup(NVRAM_SPACE, mtd->erasesize) * 2;
507+ bcm47xx_parts[3].size = roundup(NVRAM_SPACE, mtd->erasesize);
508+
509+ /* Place backup nvram into a partition */
510+ bcm47xx_parts[4].name = "nvram_copy";
511+ bcm47xx_parts[4].offset = mtd->size - roundup(NVRAM_SPACE, mtd->erasesize);
512+ bcm47xx_parts[4].size = roundup(NVRAM_SPACE, mtd->erasesize);
513+ break;
514+
515+ default:
516+ bcm47xx_parts[3].offset = mtd->size - roundup(NVRAM_SPACE, mtd->erasesize);
517+ bcm47xx_parts[3].size = roundup(NVRAM_SPACE, mtd->erasesize);
518+ }
519+
520+ } else {
521+ /* nvram (old 128kb config partition on netgear wgt634u) */
522+ bcm47xx_parts[3].offset = bcm47xx_parts[0].size;
523+ bcm47xx_parts[3].size = roundup(NVRAM_SPACE, mtd->erasesize);
524+ }
525+
526+ /* dual image offset*/
527+ pr_notice("Looking for dual image\n");
528+ dual_image_offset = find_dual_image_off(mtd);
529+ /* linux (kernel and rootfs) */
530+ if (cfe_size != 384 * 1024) {
531+ if (get_router() == ROUTER_SIMPLETECH_SIMPLESHARE) {
532+ bcm47xx_parts[1].offset = bcm47xx_parts[0].size;
533+ bcm47xx_parts[1].size = bcm47xx_parts[4].offset - dual_image_offset -
534+ bcm47xx_parts[1].offset - custom_data_size;
535+ } else {
536+ bcm47xx_parts[1].offset = bcm47xx_parts[0].size;
537+ bcm47xx_parts[1].size = bcm47xx_parts[3].offset - dual_image_offset -
538+ bcm47xx_parts[1].offset - custom_data_size;
539+ }
540+ } else {
541+ /* do not count the elf loader, which is on one block */
542+ bcm47xx_parts[1].offset = bcm47xx_parts[0].size +
543+ bcm47xx_parts[3].size + mtd->erasesize;
544+ bcm47xx_parts[1].size = mtd->size -
545+ bcm47xx_parts[0].size -
546+ (2*bcm47xx_parts[3].size) -
547+ mtd->erasesize - custom_data_size;
548+ }
549+
550+ /* find and size rootfs */
551+ find_root(mtd, &bcm47xx_parts[2]);
552+ bcm47xx_parts[2].size = mtd->size - dual_image_offset -
553+ bcm47xx_parts[2].offset -
554+ bcm47xx_parts[3].size - custom_data_size;
555+ *pparts = bcm47xx_parts;
556+ return bcm47xx_parts[4].name == NULL ? 4 : 5;
557+}
558+
559+static struct mtd_part_parser bcm47xx_parser = {
560+ .owner = THIS_MODULE,
561+ .parse_fn = parse_bcm47xx_partitions,
562+ .name = "bcm47xx",
563+};
564+
565+static int __init bcm47xx_parser_init(void)
566+{
567+ return register_mtd_parser(&bcm47xx_parser);
568+}
569+
570+static void __exit bcm47xx_parser_exit(void)
571+{
572+ deregister_mtd_parser(&bcm47xx_parser);
573+}
574+
575+module_init(bcm47xx_parser_init);
576+module_exit(bcm47xx_parser_exit);
577+
578+MODULE_LICENSE("GPL");
579+MODULE_DESCRIPTION("Parsing code for flash partitions on bcm47xx SoCs");
580

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