openwrt/target/linux/brcm47xx/patches-3.8/024-mtd-bcm47xxpart-get-nvram.patch
Hauke Mehrtens 1a8218d6e4 brcm47xx: add initial support for kernel 3.8
This contains the following new bigger changes:
 * new partition parser which still could lake some features or have bugs
 * new nand flash driver
 * using physmap-flash flash driver for parallel flash
 * some changes to the serial flash driver

With these changes OpenWrt starts using more of the mainline flash drivers.

SVN-Revision: 35632
2013-02-16 20:28:24 +00:00

35 lines
999 B
Diff

--- a/drivers/mtd/bcm47xxpart.c
+++ b/drivers/mtd/bcm47xxpart.c
@@ -58,6 +58,7 @@ static int bcm47xxpart_parse(struct mtd_
int trx_part = -1;
int last_trx_part = -1;
int max_bytes_to_read = 0x8004;
+ bool found_nvram = false;
if (blocksize <= 0x10000)
blocksize = 0x10000;
@@ -107,6 +108,7 @@ static int bcm47xxpart_parse(struct mtd_
bcm47xxpart_add_part(&parts[curr_part++], "nvram",
offset, 0);
offset = rounddown(offset, blocksize);
+ found_nvram = true;
continue;
}
@@ -194,6 +196,15 @@ static int bcm47xxpart_parse(struct mtd_
parts[trx_part].offset;
}
+ if (!found_nvram) {
+ pr_err("can not find a nvram partition reserve last block\n");
+ bcm47xxpart_add_part(&parts[curr_part++], "nvram_guess",
+ master->size - blocksize, MTD_WRITEABLE);
+ for (i = 0; i < curr_part; i++) {
+ if (parts[i].size + parts[i].offset == master->size)
+ parts[i].offset -= blocksize;
+ }
+ }
*pparts = parts;
return curr_part;
};