diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-4.19/400-mtd-bcm47xxpart-get-nvram.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-4.19/400-mtd-bcm47xxpart-get-nvram.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-4.19/400-mtd-bcm47xxpart-get-nvram.patch b/target/linux/brcm47xx/patches-4.19/400-mtd-bcm47xxpart-get-nvram.patch new file mode 100644 index 0000000000..df9d434c9f --- /dev/null +++ b/target/linux/brcm47xx/patches-4.19/400-mtd-bcm47xxpart-get-nvram.patch @@ -0,0 +1,34 @@ +--- a/drivers/mtd/bcm47xxpart.c ++++ b/drivers/mtd/bcm47xxpart.c +@@ -102,6 +102,7 @@ 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 +@@ -283,12 +284,23 @@ 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. |