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| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2008-07-16 00:09:15 +0900 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2008-07-25 10:02:47 -0400 |
| commit | ca6f12c67ed19718cf37d0f531af9438de85b70c (patch) | |
| tree | f0fa0847f19d93284a9d82060b60b5dd9b0f7b75 /drivers/mtd | |
| parent | f636ffb420f0f9059c1d0b841afd691657246ad6 (diff) | |
| download | kernel_samsung_smdk4412-ca6f12c67ed19718cf37d0f531af9438de85b70c.zip kernel_samsung_smdk4412-ca6f12c67ed19718cf37d0f531af9438de85b70c.tar.gz kernel_samsung_smdk4412-ca6f12c67ed19718cf37d0f531af9438de85b70c.tar.bz2 | |
[MTD] jedec_probe: Fix SST 16-bit chip detection
The unlock_addr rework in kernel 2.6.25 breaks 16-bit SST chips. SST
39LF160 and SST 39VF1601 are both 16-bit only chip (do not have BYTE#
pin) and new uaddr value is not correct for them. Add
MTD_UADDR_0xAAAA_0x5555 for those chips. Tested with SST 39VF1601
chip.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/chips/jedec_probe.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c index afb35e3..dbba5ab 100644 --- a/drivers/mtd/chips/jedec_probe.c +++ b/drivers/mtd/chips/jedec_probe.c @@ -200,6 +200,7 @@ enum uaddr { MTD_UADDR_0x0555_0x0AAA, MTD_UADDR_0x5555_0x2AAA, MTD_UADDR_0x0AAA_0x0555, + MTD_UADDR_0xAAAA_0x5555, MTD_UADDR_DONT_CARE, /* Requires an arbitrary address */ MTD_UADDR_UNNECESSARY, /* Does not require any address */ }; @@ -247,6 +248,11 @@ static const struct unlock_addr unlock_addrs[] = { .addr2 = 0x0555 }, + [MTD_UADDR_0xAAAA_0x5555] = { + .addr1 = 0xaaaa, + .addr2 = 0x5555 + }, + [MTD_UADDR_DONT_CARE] = { .addr1 = 0x0000, /* Doesn't matter which address */ .addr2 = 0x0000 /* is used - must be last entry */ @@ -1461,8 +1467,8 @@ static const struct amd_flash_info jedec_table[] = { .mfr_id = MANUFACTURER_SST, /* should be CFI */ .dev_id = SST39LF160, .name = "SST 39LF160", - .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8, - .uaddr = MTD_UADDR_0x5555_0x2AAA, /* ???? */ + .devtypes = CFI_DEVICETYPE_X16, + .uaddr = MTD_UADDR_0xAAAA_0x5555, .dev_size = SIZE_2MiB, .cmd_set = P_ID_AMD_STD, .nr_regions = 2, @@ -1474,8 +1480,8 @@ static const struct amd_flash_info jedec_table[] = { .mfr_id = MANUFACTURER_SST, /* should be CFI */ .dev_id = SST39VF1601, .name = "SST 39VF1601", - .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8, - .uaddr = MTD_UADDR_0x5555_0x2AAA, /* ???? */ + .devtypes = CFI_DEVICETYPE_X16, + .uaddr = MTD_UADDR_0xAAAA_0x5555, .dev_size = SIZE_2MiB, .cmd_set = P_ID_AMD_STD, .nr_regions = 2, |