summaryrefslogtreecommitdiff
path: root/drivers/mtd/chips
diff options
context:
space:
mode:
authorGuillaume LECERF <glecerf@gmail.com>2010-10-26 10:45:23 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-10-26 11:39:17 +0100
commit08968041bef437ec363623cd3218c2b083537ada (patch)
tree937da129712ee96f3099d762d100543743eed062 /drivers/mtd/chips
parent9fc05fcadadcf3d6ddfe288e2e5c7ad0773b2abf (diff)
mtd: cfi_cmdset_0002: make sector erase command variable
Some old SST chips use 0x50 as sector erase command, instead of 0x30. Make this value variable to handle such chips. Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/chips')
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0002.c10
-rw-r--r--drivers/mtd/chips/cfi_probe.c2
2 files changed, 8 insertions, 4 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index eb8ce0cf2855..288fc2ea8494 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -291,6 +291,8 @@ static void fixup_sst39vf_rev_b(struct mtd_info *mtd, void *param)
cfi->addr_unlock1 = 0x555;
cfi->addr_unlock2 = 0x2AA;
+
+ cfi->sector_erase_cmd = CMD(0x50);
}
static void fixup_sst38vf640x_sectorsize(struct mtd_info *mtd, void *param)
@@ -691,7 +693,7 @@ static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr
* there was an error (so leave the erase
* routine to recover from it) or we trying to
* use the erase-in-progress sector. */
- map_write(map, CMD(0x30), chip->in_progress_block_addr);
+ map_write(map, cfi->sector_erase_cmd, chip->in_progress_block_addr);
chip->state = FL_ERASING;
chip->oldstate = FL_READY;
printk(KERN_ERR "MTD %s(): chip not ready after erase suspend\n", __func__);
@@ -744,7 +746,7 @@ static void put_chip(struct map_info *map, struct flchip *chip, unsigned long ad
switch(chip->oldstate) {
case FL_ERASING:
chip->state = chip->oldstate;
- map_write(map, CMD(0x30), chip->in_progress_block_addr);
+ map_write(map, cfi->sector_erase_cmd, chip->in_progress_block_addr);
chip->oldstate = FL_READY;
chip->state = FL_ERASING;
break;
@@ -887,7 +889,7 @@ static void __xipram xip_udelay(struct map_info *map, struct flchip *chip,
local_irq_disable();
/* Resume the write or erase operation */
- map_write(map, CMD(0x30), adr);
+ map_write(map, cfi->sector_erase_cmd, adr);
chip->state = oldstate;
start = xip_currtime();
} else if (usec >= 1000000/HZ) {
@@ -1670,7 +1672,7 @@ static int __xipram do_erase_oneblock(struct map_info *map, struct flchip *chip,
cfi_send_gen_cmd(0x80, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL);
cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL);
cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, cfi->device_type, NULL);
- map_write(map, CMD(0x30), adr);
+ map_write(map, cfi->sector_erase_cmd, adr);
chip->state = FL_ERASING;
chip->erase_suspended = 0;
diff --git a/drivers/mtd/chips/cfi_probe.c b/drivers/mtd/chips/cfi_probe.c
index 8f5b96aa87a0..d25535279404 100644
--- a/drivers/mtd/chips/cfi_probe.c
+++ b/drivers/mtd/chips/cfi_probe.c
@@ -177,6 +177,8 @@ static int __xipram cfi_chip_setup(struct map_info *map,
cfi->cfi_mode = CFI_MODE_CFI;
+ cfi->sector_erase_cmd = CMD(0x30);
+
/* Read the CFI info structure */
xip_disable_qry(base, map, cfi);
for (i=0; i<(sizeof(struct cfi_ident) + num_erase_regions * 4); i++)