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| author | Guillaume LECERF <glecerf@gmail.com> | 2010-10-26 10:26:26 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-10-26 11:37:26 +0100 |
| commit | fc61015f72808f2fd83657909d02f4d29404b8c6 (patch) | |
| tree | 90b744d65b61d55a1f8823b980f3ba84a9a858e6 /drivers/mtd/chips | |
| parent | b5d194ceaeffce637e88be153794d1c963738ea9 (diff) | |
| download | kernel_samsung_smdk4412-fc61015f72808f2fd83657909d02f4d29404b8c6.zip kernel_samsung_smdk4412-fc61015f72808f2fd83657909d02f4d29404b8c6.tar.gz kernel_samsung_smdk4412-fc61015f72808f2fd83657909d02f4d29404b8c6.tar.bz2 | |
mtd: cfi_util: add support for switching SST 39VF640xB chips into QRY mode
Signed-off-by: Guillaume LECERF <glecerf@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/chips')
| -rw-r--r-- | drivers/mtd/chips/cfi_util.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/mtd/chips/cfi_util.c b/drivers/mtd/chips/cfi_util.c index e503b2c..360525c 100644 --- a/drivers/mtd/chips/cfi_util.c +++ b/drivers/mtd/chips/cfi_util.c @@ -77,6 +77,13 @@ int __xipram cfi_qry_mode_on(uint32_t base, struct map_info *map, cfi_send_gen_cmd(0x98, 0x5555, base, map, cfi, cfi->device_type, NULL); if (cfi_qry_present(map, base, cfi)) return 1; + /* SST 39VF640xB */ + cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL); + cfi_send_gen_cmd(0xAA, 0x555, base, map, cfi, cfi->device_type, NULL); + cfi_send_gen_cmd(0x55, 0x2AA, base, map, cfi, cfi->device_type, NULL); + cfi_send_gen_cmd(0x98, 0x555, base, map, cfi, cfi->device_type, NULL); + if (cfi_qry_present(map, base, cfi)) + return 1; /* QRY not found */ return 0; } |