Patchwork fix M29W800D dev_id and uaddr

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Submitter Ladislav Michl
Date Nov. 22, 2009, 11:06 p.m.
Message ID <20091122230649.GA29911@localhost.localdomain>
Download mbox | patch
Permalink /patch/39019/
State New
Headers show

Comments

Ladislav Michl - Nov. 22, 2009, 11:06 p.m.
This one sits in my tree for more than two years...
Using device code found on page 12 (http://www.btdesigner.com/pdfs/M29W800D.pdf)
and unlock address from page 15 MTD subsytem happily detects ST M29W800DB
in 16-bit mode. I do believe original author used only 8-bit mode and thus
didn't hit this bug.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>

Patch

diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c
index 736a3be..1bec5e1 100644
--- a/drivers/mtd/chips/jedec_probe.c
+++ b/drivers/mtd/chips/jedec_probe.c
@@ -142,8 +142,8 @@ 
 
 /* ST - www.st.com */
 #define M29F800AB	0x0058
-#define M29W800DT	0x00D7
-#define M29W800DB	0x005B
+#define M29W800DT	0x22D7
+#define M29W800DB	0x225B
 #define M29W400DT	0x00EE
 #define M29W400DB	0x00EF
 #define M29W160DT	0x22C4
@@ -1575,7 +1575,7 @@  static const struct amd_flash_info jedec_table[] = {
 		.dev_id		= M29W800DT,
 		.name		= "ST M29W800DT",
 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
-		.uaddr		= MTD_UADDR_0x5555_0x2AAA,	/* ???? */
+		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
 		.dev_size	= SIZE_1MiB,
 		.cmd_set	= P_ID_AMD_STD,
 		.nr_regions	= 4,
@@ -1590,7 +1590,7 @@  static const struct amd_flash_info jedec_table[] = {
 		.dev_id		= M29W800DB,
 		.name		= "ST M29W800DB",
 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
-		.uaddr		= MTD_UADDR_0x5555_0x2AAA,	/* ???? */
+		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
 		.dev_size	= SIZE_1MiB,
 		.cmd_set	= P_ID_AMD_STD,
 		.nr_regions	= 4,