[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>

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 702ae4cd8691..ca0882b5819f 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -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
diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c
index 1154dac715aa..63d12874590d 100644
--- a/drivers/mtd/chips/jedec_probe.c
+++ b/drivers/mtd/chips/jedec_probe.c
@@ -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
@@ -1401,6 +1402,20 @@ static const struct amd_flash_info jedec_table[] = {
                 }
         }, {
                 .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          = {