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| author | blogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-10-05 10:12:53 +0000 |
|---|---|---|
| committer | blogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-10-05 10:12:53 +0000 |
| commit | 5c105d9f3fd086aff195d3849dcf847d6b0bd927 (patch) | |
| tree | 1229a11f725bfa58aa7c57a76898553bb5f6654a /target/linux/generic/patches-3.3/476-mtd-m25p80-allow-to-disable-small-sector-erase.patch | |
| download | openwrt-5c105d9f3fd086aff195d3849dcf847d6b0bd927.tar.gz openwrt-5c105d9f3fd086aff195d3849dcf847d6b0bd927.zip | |
branch Attitude Adjustment
git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33625 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-3.3/476-mtd-m25p80-allow-to-disable-small-sector-erase.patch')
| -rw-r--r-- | target/linux/generic/patches-3.3/476-mtd-m25p80-allow-to-disable-small-sector-erase.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.3/476-mtd-m25p80-allow-to-disable-small-sector-erase.patch b/target/linux/generic/patches-3.3/476-mtd-m25p80-allow-to-disable-small-sector-erase.patch new file mode 100644 index 000000000..231d4548c --- /dev/null +++ b/target/linux/generic/patches-3.3/476-mtd-m25p80-allow-to-disable-small-sector-erase.patch @@ -0,0 +1,41 @@ +--- a/drivers/mtd/devices/Kconfig ++++ b/drivers/mtd/devices/Kconfig +@@ -102,6 +102,14 @@ config M25PXX_USE_FAST_READ + help + This option enables FAST_READ access supported by ST M25Pxx. + ++config M25PXX_PREFER_SMALL_SECTOR_ERASE ++ bool "Prefer small sector erase" ++ depends on MTD_M25P80 ++ default y ++ help ++ This option enables use of the small erase sectors if that is ++ supported by the flash chip. ++ + config MTD_SST25L + tristate "Support SST25L (non JEDEC) SPI Flash chips" + depends on SPI_MASTER +--- a/drivers/mtd/devices/m25p80.c ++++ b/drivers/mtd/devices/m25p80.c +@@ -84,6 +84,12 @@ + + #define JEDEC_MFR(_jedec_id) ((_jedec_id) >> 16) + ++#ifdef CONFIG_M25PXX_PREFER_SMALL_SECTOR_ERASE ++#define PREFER_SMALL_SECTOR_ERASE 1 ++#else ++#define PREFER_SMALL_SECTOR_ERASE 0 ++#endif ++ + /****************************************************************************/ + + struct m25p { +@@ -925,7 +931,7 @@ static int __devinit m25p_probe(struct s + flash->mtd.write = m25p80_write; + + /* prefer "small sector" erase if possible */ +- if (info->flags & SECT_4K) { ++ if (PREFER_SMALL_SECTOR_ERASE && (info->flags & SECT_4K)) { + flash->erase_opcode = OPCODE_BE_4K; + flash->mtd.erasesize = 4096; + } else if (info->flags & SECT_4K_PMC) { |