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generic: fix erase operation on the pm25lv flash chip

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22861 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg
2010-08-31 20:06:38 +00:00
parent 4149596e58
commit 2bbe78f8f6
18 changed files with 180 additions and 50 deletions
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32
target/linux/generic/patches-2.6.35/084-mtd_m25p80_add_pm25lv_flash_support.patch
View File

@@ -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
@@ -41,6 +41,7 @@
#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 */
@@ -600,6 +601,7 @@ 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) \
@@ -646,6 +648,10 @@ 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).
*/
@@ -858,6 +864,9 @@ 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;

6
target/linux/generic/patches-2.6.35/085-mtd_m25p80_add_en25pxx_support.patch
View File

@@ -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
@@ -648,6 +648,10 @@ 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) },

8
target/linux/generic/patches-2.6.35/086-mtd_m25p80_add_xxxs33b_support.patch
View File

@@ -1,6 +1,6 @@
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -650,6 +650,11 @@ static const struct spi_device_id m25p_i
@@ -652,6 +652,11 @@ static const struct spi_device_id m25p_i
{ "en25p32", INFO(0x1c2016, 0, 64 * 1024, 64, 0) },
{ "en25p64", INFO(0x1c2017, 0, 64 * 1024, 128, 0) },
@@ -10,9 +10,9 @@
+ { "640s33b", INFO(0x898913, 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) },
@@ -834,11 +839,12 @@ static int __devinit m25p_probe(struct s
{ "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K_PMC) },
{ "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_4K_PMC) },
@@ -836,11 +841,12 @@ static int __devinit m25p_probe(struct s
dev_set_drvdata(&spi->dev, flash);
/*

2
target/linux/generic/patches-2.6.35/087-mtd-m25p80-add-w25q32-chip-support.patch
View File

@@ -1,6 +1,6 @@
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -707,6 +707,7 @@ static const struct spi_device_id m25p_i
@@ -709,6 +709,7 @@ static const struct spi_device_id m25p_i
{ "w25x80", INFO(0xef3014, 0, 64 * 1024, 16, SECT_4K) },
{ "w25x16", INFO(0xef3015, 0, 64 * 1024, 32, SECT_4K) },
{ "w25x32", INFO(0xef3016, 0, 64 * 1024, 64, SECT_4K) },