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openwrt/target/linux/bcm47xx/patches-6.6/400-mtd-bcm47xxpart-get-nvram.patch
Mieczyslaw Nalewaj 907c1c5fe1 kernel/bcm47xx: Create kernel files for v6.6 (from v6.1)
This is an automatically generated commit.

When doing `git bisect`, consider `git bisect --skip`.

Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
Link: https://github.com/openwrt/openwrt/pull/15010
Signed-off-by: Robert Marko <robimarko@gmail.com>
2024-06-03 17:57:54 +02:00

35 lines
1.0 KiB
Diff

--- a/drivers/mtd/parsers/bcm47xxpart.c
+++ b/drivers/mtd/parsers/bcm47xxpart.c
@@ -98,6 +98,7 @@ static int bcm47xxpart_parse(struct mtd_
int trx_num = 0; /* Number of found TRX partitions */
int possible_nvram_sizes[] = { 0x8000, 0xF000, 0x10000, };
int err;
+ bool found_nvram = false;
/*
* Some really old flashes (like AT45DB*) had smaller erasesize-s, but
@@ -279,12 +280,23 @@ static int bcm47xxpart_parse(struct mtd_
if (buf[0] == NVRAM_HEADER) {
bcm47xxpart_add_part(&parts[curr_part++], "nvram",
master->size - blocksize, 0);
+ found_nvram = true;
break;
}
}
kfree(buf);
+ 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 * 2, MTD_WRITEABLE);
+ for (i = 0; i < curr_part; i++) {
+ if (parts[i].size + parts[i].offset == master->size)
+ parts[i].offset -= blocksize * 2;
+ }
+ }
+
/*
* Assume that partitions end at the beginning of the one they are
* followed by.