diff options
| author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2011-04-16 18:30:57 +0000 |
|---|---|---|
| committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2011-04-16 18:30:57 +0000 |
| commit | 5ed970594e5968204fd460981508316edc4c0298 (patch) | |
| tree | e6fb6200183e257b8f8cf45857f359b053bd2a0d /target/linux/generic/patches-2.6.38/470-mtd_m25p80_add_pm25lv_flash_support.patch | |
| parent | 837777d736d83a89c1473730332e9b8890dd09e7 (diff) | |
kernel: reorganize 2.6.38 patches, clean up block2mtd patches
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26690 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-2.6.38/470-mtd_m25p80_add_pm25lv_flash_support.patch')
| -rw-r--r-- | target/linux/generic/patches-2.6.38/470-mtd_m25p80_add_pm25lv_flash_support.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/target/linux/generic/patches-2.6.38/470-mtd_m25p80_add_pm25lv_flash_support.patch b/target/linux/generic/patches-2.6.38/470-mtd_m25p80_add_pm25lv_flash_support.patch new file mode 100644 index 000000000..91cdd9763 --- /dev/null +++ b/target/linux/generic/patches-2.6.38/470-mtd_m25p80_add_pm25lv_flash_support.patch @@ -0,0 +1,39 @@ +--- a/drivers/mtd/devices/m25p80.c ++++ b/drivers/mtd/devices/m25p80.c +@@ -43,6 +43,7 @@ + #define OPCODE_BE_4K 0x20 /* Erase 4KiB block */ + #define OPCODE_BE_32K 0x52 /* Erase 32KiB block */ + #define OPCODE_CHIP_ERASE 0xc7 /* Erase whole flash chip */ ++#define OPCODE_BE_4K_PMC 0xd7 /* Erase 4KiB block on PMC chips*/ + #define OPCODE_SE 0xd8 /* Sector erase (usually 64KiB) */ + #define OPCODE_RDID 0x9f /* Read JEDEC ID */ + +@@ -617,6 +618,7 @@ struct flash_info { + u16 flags; + #define SECT_4K 0x01 /* OPCODE_BE_4K works uniformly */ + #define M25P_NO_ERASE 0x02 /* No erase command needed */ ++#define SECT_4K_PMC 0x04 /* OPCODE_BE_4K_PMC works uniformly */ + }; + + #define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags) \ +@@ -674,6 +676,10 @@ static const struct spi_device_id m25p_i + { "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, 0) }, + { "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) }, + ++ /* PMC -- pm25x "blocks" are 32K, sectors are 4K */ ++ { "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K_PMC) }, ++ { "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_4K_PMC) }, ++ + /* Spansion -- single (large) sector size only, at least + * for the chips listed here (without boot sectors). + */ +@@ -894,6 +900,9 @@ static int __devinit m25p_probe(struct s + if (info->flags & SECT_4K) { + flash->erase_opcode = OPCODE_BE_4K; + flash->mtd.erasesize = 4096; ++ } else if (info->flags & SECT_4K_PMC) { ++ flash->erase_opcode = OPCODE_BE_4K_PMC; ++ flash->mtd.erasesize = 4096; + } else { + flash->erase_opcode = OPCODE_SE; + flash->mtd.erasesize = info->sector_size; |