diff options
| author | Aaron Sierra | 2018-04-30 11:35:07 -0500 |
|---|---|---|
| committer | Boris Brezillon | 2018-05-04 09:52:38 +0200 |
| commit | 0fe3ede7941dfcd6fd540fc2b086453d3ee8f236 (patch) | |
| tree | 627b87edd233f278d6d252f2051d02a5066275d1 /drivers/mtd | |
| parent | b1c97e2335f24dbdcc26cfdc882b8b5a0bad25c2 (diff) | |
mtd: cfi: Add early fixup for S70GL02GS
S70GL02GS flash reports a single 256 MiB chip, but is really made up
of two 128 MiB chips with 1024 sectors each.
Without early fixups (top half of device cannot be written or erased):
ff0000000.nor-boot: Found 1 x16 devices at 0x0 in 16-bit bank. <snip>
Amd/Fujitsu Extended Query Table at 0x0040
Amd/Fujitsu Extended Query version 1.5.
number of CFI chips: 1
With early fixups (entire device can be written and erased):
Bad S70GL02GS CFI data; adjust to detect 2 chips
ff0000000.nor-boot: Found 1 x16 devices at 0x0 in 16-bit bank. <snip>
ff0000000.nor-boot: Found 1 x16 devices at 0x8000000 in 16-bit bank
Amd/Fujitsu Extended Query Table at 0x0040
Amd/Fujitsu Extended Query version 1.5.
number of CFI chips: 2
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/chips/cfi_probe.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/mtd/chips/cfi_probe.c b/drivers/mtd/chips/cfi_probe.c index 812df70ab6a6..cf426956454c 100644 --- a/drivers/mtd/chips/cfi_probe.c +++ b/drivers/mtd/chips/cfi_probe.c @@ -175,7 +175,19 @@ static int __xipram cfi_probe_chip(struct map_info *map, __u32 base, return 1; } +static void fixup_s70gl02gs_chips(struct cfi_private *cfi) +{ + /* + * S70GL02GS flash reports a single 256 MiB chip, but is really made up + * of two 128 MiB chips with 1024 sectors each. + */ + cfi->cfiq->DevSize = 27; + cfi->cfiq->EraseRegionInfo[0] = 0x20003ff; + pr_warn("Bad S70GL02GS CFI data; adjust to detect 2 chips\n"); +} + static const struct cfi_early_fixup cfi_early_fixup_table[] = { + { CFI_MFR_AMD, 0x4801, fixup_s70gl02gs_chips }, { }, }; |