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[MTD] CHIPS: Support for SST 49LF040B flash chip 

Add chip driver and JEDEC probe support for the SST 49LF040B flash chip.

Signed-off-by: Ryan Jackson <rjackson@lnxi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
Ryan Jackson 2006-10-20 14:41:03 -07:00 committed by David Woodhouse
parent c9073ce02a
commit 89072ef993
2 changed files with 21 additions and 2 deletions
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8
drivers/mtd/chips/cfi_cmdset_0002.c
View File

@ -48,6 +48,7 @@
#define MANUFACTURER_ATMEL 0x001F
#define MANUFACTURER_SST 0x00BF
#define SST49LF004B 0x0060
#define SST49LF040B 0x0050
#define SST49LF008A 0x005a
#define AT49BV6416 0x00d6
@ -233,6 +234,7 @@ static struct cfi_fixup cfi_fixup_table[] = {
};
static struct cfi_fixup jedec_fixup_table[] = {
{ MANUFACTURER_SST, SST49LF004B, fixup_use_fwh_lock, NULL, },
{ MANUFACTURER_SST, SST49LF040B, fixup_use_fwh_lock, NULL, },
{ MANUFACTURER_SST, SST49LF008A, fixup_use_fwh_lock, NULL, },
{ 0, 0, NULL, NULL }
};
@ -519,10 +521,12 @@ static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr
if (mode == FL_WRITING) /* FIXME: Erase-suspend-program appears broken. */
goto sleep;
if (!(mode == FL_READY || mode == FL_POINT
if (!( mode == FL_READY
|| mode == FL_POINT
|| !cfip
|| (mode == FL_WRITING && (cfip->EraseSuspend & 0x2))
|| (mode == FL_WRITING && (cfip->EraseSuspend & 0x1))))
|| (mode == FL_WRITING && (cfip->EraseSuspend & 0x1)
)))
goto sleep;
/* We could check to see if we're trying to access the sector

15
drivers/mtd/chips/jedec_probe.c
View File

@ -154,6 +154,7 @@
#define SST39SF010A 0x00B5
#define SST39SF020A 0x00B6
#define SST49LF004B 0x0060
#define SST49LF040B 0x0050
#define SST49LF008A 0x005a
#define SST49LF030A 0x001C
#define SST49LF040A 0x0051
@ -1400,6 +1401,20 @@ static const struct amd_flash_info jedec_table[] = {
ERASEINFO(0x01000,64),
}
}, {
.mfr_id = MANUFACTURER_SST,
.dev_id = SST49LF040B,
.name = "SST 49LF040B",
.uaddr = {
[0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
},
.DevSize = SIZE_512KiB,
.CmdSet = P_ID_AMD_STD,
.NumEraseRegions= 1,
.regions = {
ERASEINFO(0x01000,128),
}
}, {
.mfr_id = MANUFACTURER_SST,
.dev_id = SST49LF004B,
.name = "SST 49LF004B",