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freifunkist-firmware/target/linux/brcm47xx/patches-3.8/024-mtd-bcm47xxpart-get-nvr...

34 lines
999 B

--- 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;
};