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| author | Guillaume LECERF <glecerf@gmail.com> | 2010-10-26 10:45:23 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-10-26 11:39:17 +0100 |
| commit | 08968041bef437ec363623cd3218c2b083537ada (patch) | |
| tree | 937da129712ee96f3099d762d100543743eed062 | |
| parent | 9fc05fcadadcf3d6ddfe288e2e5c7ad0773b2abf (diff) | |
| download | linux-08968041bef437ec363623cd3218c2b083537ada.tar.gz linux-08968041bef437ec363623cd3218c2b083537ada.tar.bz2 linux-08968041bef437ec363623cd3218c2b083537ada.zip | |
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>
| -rw-r--r-- | drivers/mtd/chips/cfi_cmdset_0002.c | 10 | ||||
| -rw-r--r-- | drivers/mtd/chips/cfi_probe.c | 2 | ||||
| -rw-r--r-- | include/linux/mtd/cfi.h | 1 |
3 files changed, 9 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++) diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h index d2118b0eac9a..4dd0c2cd7659 100644 --- a/include/linux/mtd/cfi.h +++ b/include/linux/mtd/cfi.h @@ -289,6 +289,7 @@ struct cfi_private { must be of the same type. */ int mfr, id; int numchips; + map_word sector_erase_cmd; unsigned long chipshift; /* Because they're of the same type */ const char *im_name; /* inter_module name for cmdset_setup */ struct flchip chips[0]; /* per-chip data structure for each chip */ |