diff options
| author |   Nicolas Pitre <nico@cam.org> | 2005-04-01 17:36:29 +0100 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@mtd.linutronix.de> | 2005-05-23 13:07:50 +0200 |
| commit | dce2b4da69a83635150a6535ebc23f680e200a8d (patch) | |
| tree | 1e71cbc8cb0fd495d2c4383ea40d7b045b3d6da6 /drivers/mtd/chips/cfi_cmdset_0001.c | |
| parent | [MTD] Reset file position when switching OTP mode (diff) | |
| download | linux-dev-dce2b4da69a83635150a6535ebc23f680e200a8d.tar.xz linux-dev-dce2b4da69a83635150a6535ebc23f680e200a8d.zip | |
[MTD] Fix OTP for top-parameter devices
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to '')
| -rw-r--r-- | drivers/mtd/chips/cfi_cmdset_0001.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c index dc257eb6932f..b99400f6e484 100644 --- a/drivers/mtd/chips/cfi_cmdset_0001.c +++ b/drivers/mtd/chips/cfi_cmdset_0001.c @@ -4,7 +4,7 @@ * * (C) 2000 Red Hat. GPL'd * - * $Id: cfi_cmdset_0001.c,v 1.174 2005/04/01 01:59:52 nico Exp $ + * $Id: cfi_cmdset_0001.c,v 1.175 2005/04/01 16:36:25 nico Exp $ * * * 10/10/2000 Nicolas Pitre <nico@cam.org> @@ -2062,8 +2062,20 @@ static int cfi_intelext_otp_walk(struct mtd_info *mtd, loff_t from, size_t len, /* we need real chips here not virtual ones */ devsize = (1 << cfi->cfiq->DevSize) * cfi->interleave; chip_step = devsize >> cfi->chipshift; + chip_num = 0; + + /* Some chips have OTP located in the _top_ partition only. + For example: Intel 28F256L18T (T means top-parameter device) */ + if (cfi->mfr == MANUFACTURER_INTEL) { + switch (cfi->id) { + case 0x880b: + case 0x880c: + case 0x880d: + chip_num = chip_step - 1; + } + } - for (chip_num = 0; chip_num < cfi->numchips; chip_num += chip_step) { + for ( ; chip_num < cfi->numchips; chip_num += chip_step) { chip = &cfi->chips[chip_num]; otp = (struct cfi_intelext_otpinfo *)&extp->extra[0]; |