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mtd: add fixup for S29NS512P NOR flash.

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Spansion S29NS512P flash uses a 16bit transfer to report number
of sectors instead of two 8bit accesses as CFI specifies.

Artem: remove warning message which said that we are applying the
fixup - no need to scary the user unnecessarily.

Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Javier Martin 2012-05-11 12:15:41 +02:00 committed by David Woodhouse
parent 8c5a036640
commit 43dc03c7ba
1 changed files with 14 additions and 0 deletions
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14
drivers/mtd/chips/cfi_cmdset_0002.c
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@ -332,6 +332,19 @@ static void fixup_s29gl032n_sectors(struct mtd_info *mtd)
}
}
static void fixup_s29ns512p_sectors(struct mtd_info *mtd)
{
struct map_info *map = mtd->priv;
struct cfi_private *cfi = map->fldrv_priv;
/*
* S29NS512P flash uses more than 8bits to report number of sectors,
* which is not permitted by CFI.
*/
cfi->cfiq->EraseRegionInfo[0] = 0x020001ff;
pr_warning("%s: Bad S29NS512P CFI data, adjust to 512 sectors\n", mtd->name);
}
/* Used to fix CFI-Tables of chips without Extended Query Tables */
static struct cfi_fixup cfi_nopri_fixup_table[] = {
{ CFI_MFR_SST, 0x234a, fixup_sst39vf }, /* SST39VF1602 */
@ -362,6 +375,7 @@ static struct cfi_fixup cfi_fixup_table[] = {
{ CFI_MFR_AMD, 0x1301, fixup_s29gl064n_sectors },
{ CFI_MFR_AMD, 0x1a00, fixup_s29gl032n_sectors },
{ CFI_MFR_AMD, 0x1a01, fixup_s29gl032n_sectors },
{ CFI_MFR_AMD, 0x3f00, fixup_s29ns512p_sectors },
{ CFI_MFR_SST, 0x536a, fixup_sst38vf640x_sectorsize }, /* SST38VF6402 */
{ CFI_MFR_SST, 0x536b, fixup_sst38vf640x_sectorsize }, /* SST38VF6401 */
{ CFI_MFR_SST, 0x536c, fixup_sst38vf640x_sectorsize }, /* SST38VF6404 */