diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.18/400-mtd-bcm47xxpart-lower-minimal-blocksize-to-4Ki-from-.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.18/400-mtd-bcm47xxpart-lower-minimal-blocksize-to-4Ki-from-.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.18/400-mtd-bcm47xxpart-lower-minimal-blocksize-to-4Ki-from-.patch b/target/linux/brcm47xx/patches-3.18/400-mtd-bcm47xxpart-lower-minimal-blocksize-to-4Ki-from-.patch new file mode 100644 index 0000000..5a8aad4 --- /dev/null +++ b/target/linux/brcm47xx/patches-3.18/400-mtd-bcm47xxpart-lower-minimal-blocksize-to-4Ki-from-.patch @@ -0,0 +1,43 @@ +From 4586bc54a322568d5258d6a1b04e361d4a95597b Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com> +Date: Wed, 12 Nov 2014 09:06:22 +0100 +Subject: [PATCH][RFC] mtd: bcm47xxpart: lower minimal blocksize to 4Ki (from + 64Ki) +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Some devices like Netgear WNR1000v3 or WGR614v10 have partitions aligned +to 0x1000. Using bigger blocksize stopped us from detecting some parts. + +Signed-off-by: Rafał Miłecki <zajec5@gmail.com> +--- +Most of supported devices use flashes with erasesize 0x10000 (64Ki), so +this change shouldn't affect them (no regressions expected). +Any objections? +--- + drivers/mtd/bcm47xxpart.c | 8 ++++++-- + 1 file changed, 6 insertions(+), 2 deletions(-) + +diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c +index dfd57a0..948f535 100644 +--- a/drivers/mtd/bcm47xxpart.c ++++ b/drivers/mtd/bcm47xxpart.c +@@ -95,8 +95,12 @@ static int bcm47xxpart_parse(struct mtd_info *master, + int possible_nvram_sizes[] = { 0x8000, 0xF000, 0x10000, }; + bool found_nvram = false; + +- if (blocksize <= 0x10000) +- blocksize = 0x10000; ++ /* ++ * Some really old flashes (like AT45DB*) had smaller erasesize-s, but ++ * partitions were aligned to at least 0x1000 anyway. ++ */ ++ if (blocksize < 0x1000) ++ blocksize = 0x1000; + + /* Alloc */ + parts = kzalloc(sizeof(struct mtd_partition) * BCM47XXPART_MAX_PARTS, +-- +1.8.4.5 + |