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authorGabor Juhos <juhosg@openwrt.org>2010-08-31 20:06:38 +0000
committerGabor Juhos <juhosg@openwrt.org>2010-08-31 20:06:38 +0000
commit7782fcf8746bd43f5815432a6bde8471793ffa27 (patch)
treecc82ac58befdc1b3b41b376b46f5a32cf13bc8ef /target/linux/generic/patches-2.6.36
parent19654fd1c26e8f54fdd15734df1dbbd2a3d185e3 (diff)
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generic: fix erase operation on the pm25lv flash chip
SVN-Revision: 22861
Diffstat (limited to 'target/linux/generic/patches-2.6.36')
-rw-r--r--target/linux/generic/patches-2.6.36/084-mtd_m25p80_add_pm25lv_flash_support.patch32
-rw-r--r--target/linux/generic/patches-2.6.36/085-mtd_m25p80_add_en25pxx_support.patch6
2 files changed, 32 insertions, 6 deletions
diff --git a/target/linux/generic/patches-2.6.36/084-mtd_m25p80_add_pm25lv_flash_support.patch b/target/linux/generic/patches-2.6.36/084-mtd_m25p80_add_pm25lv_flash_support.patch
index 96a5bd0..e37bab7 100644
--- a/target/linux/generic/patches-2.6.36/084-mtd_m25p80_add_pm25lv_flash_support.patch
+++ b/target/linux/generic/patches-2.6.36/084-mtd_m25p80_add_pm25lv_flash_support.patch
@@ -1,13 +1,39 @@
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
-@@ -646,6 +646,10 @@ static const struct spi_device_id m25p_i
+@@ -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 */
+
+@@ -598,6 +599,7 @@ 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) \
+@@ -654,6 +656,10 @@ static const struct spi_device_id m25p_i
{ "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) },
{ "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) },
+ /* PMC -- pm25x "blocks" are 32K, sectors are 4K */
-+ { "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K) },
-+ { "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_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).
*/
+@@ -869,6 +875,9 @@ 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;
diff --git a/target/linux/generic/patches-2.6.36/085-mtd_m25p80_add_en25pxx_support.patch b/target/linux/generic/patches-2.6.36/085-mtd_m25p80_add_en25pxx_support.patch
index 9235e6e..df2974c 100644
--- a/target/linux/generic/patches-2.6.36/085-mtd_m25p80_add_en25pxx_support.patch
+++ b/target/linux/generic/patches-2.6.36/085-mtd_m25p80_add_en25pxx_support.patch
@@ -1,6 +1,6 @@
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
-@@ -646,6 +646,10 @@ static const struct spi_device_id m25p_i
+@@ -656,6 +656,10 @@ static const struct spi_device_id m25p_i
{ "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) },
{ "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) },
@@ -9,5 +9,5 @@
+ { "en25p64", INFO(0x1c2017, 0, 64 * 1024, 128, 0) },
+
/* PMC -- pm25x "blocks" are 32K, sectors are 4K */
- { "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K) },
- { "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_4K) },
+ { "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K_PMC) },
+ { "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_4K_PMC) },