The patch titled
mtd: jedec_probe: fix NEC uPD29F064115 detection
has been added to the -mm tree. Its filename is
mtd-jedec_probe-fix-nec-upd29f064115-detection.patch
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------------------------------------------------------
Subject: mtd: jedec_probe: fix NEC uPD29F064115 detection
From: Hiroshi Ito <ito@xxxxxxxxx>
linux v2.6.31-rc6 can not detect NEC uPD29F064115.
uPD29F064115 is a 16 bit device.
datasheet:
http://www.cn.necel.com/memory/cn/download/M16062EJ2V0DS00.pdf
A problem and fix is described in the following commit, which in the main
kernel tree, uPD29F064115 needs same fix.
commit ca6f12c67ed19718cf37d0f531af9438de85b70c
Author: Atsushi Nemoto <anemo@xxxxxxxxxxxxx>
Date: Wed Jul 16 00:09:15 2008 +0900
[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@xxxxxxxxxxxxx>
Signed-off-by: David Woodhouse <David.Woodhouse@xxxxxxxxx>
Signed-off-by: Hiroshi Ito <ito@xxxxxxxxx>
Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
Cc: Atsushi Nemoto <anemo@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/mtd/chips/jedec_probe.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN drivers/mtd/chips/jedec_probe.c~mtd-jedec_probe-fix-nec-upd29f064115-detection drivers/mtd/chips/jedec_probe.c
--- a/drivers/mtd/chips/jedec_probe.c~mtd-jedec_probe-fix-nec-upd29f064115-detection
+++ a/drivers/mtd/chips/jedec_probe.c
@@ -1156,8 +1156,8 @@ static const struct amd_flash_info jedec
.mfr_id = MANUFACTURER_NEC,
.dev_id = UPD29F064115,
.name = "NEC uPD29F064115",
- .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
- .uaddr = MTD_UADDR_0x0555_0x02AA, /* ???? */
+ .devtypes = CFI_DEVICETYPE_X16,
+ .uaddr = MTD_UADDR_0xAAAA_0x5555,
.dev_size = SIZE_8MiB,
.cmd_set = P_ID_AMD_STD,
.nr_regions = 3,
_
Patches currently in -mm which might be from ito@xxxxxxxxx are
mtd-jedec_probe-fix-nec-upd29f064115-detection.patch
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