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From: Ryan Jackson on 4 Oct 2006 20:40
Add CFI and JEDEC probe support for the SST 49LF040B flash chip.

Signed-off-by: Ryan Jackson <rjackson(a)lnxi.com>

---
drivers/mtd/chips/cfi_cmdset_0002.c | 8 ++++++--
drivers/mtd/chips/jedec_probe.c | 15 +++++++++++++++
2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index a482e89..0e90176 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -48,6 +48,7 @@ #define MANUFACTURER_AMD 0x0001
#define MANUFACTURER_ATMEL 0x001F
#define MANUFACTURER_SST 0x00BF
#define SST49LF004B 0x0060
+#define SST49LF040B 0x0050
#define SST49LF008A 0x005a
#define AT49BV6416 0x00d6

@@ -232,6 +233,7 @@ #endif
};
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 }
};
@@ -518,10 +520,12 @@ static int get_chip(struct map_info *map
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
diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c
index 1154dac..63d1287 100644
--- a/drivers/mtd/chips/jedec_probe.c
+++ b/drivers/mtd/chips/jedec_probe.c
@@ -154,6 +154,7 @@ #define SST39LF040 0x00D7
#define SST39SF010A 0x00B5
#define SST39SF020A 0x00B6
#define SST49LF004B 0x0060
+#define SST49LF040B 0x0050
#define SST49LF008A 0x005a
#define SST49LF030A 0x001C
#define SST49LF040A 0x0051
@@ -1401,6 +1402,20 @@ static const struct amd_flash_info jedec
}
}, {
.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",
.uaddr = {
--
1.4.2.1

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Prev: 2.6.18 ext3 panic.
Next: HP mobile data protection system driver