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authorGabor Juhos <juhosg@openwrt.org>2007-07-03 17:04:46 +0000
committerGabor Juhos <juhosg@openwrt.org>2007-07-03 17:04:46 +0000
commitf33a8240f226ceac19381382910740e260db8b14 (patch)
tree4265038684808260dd71a48438345fc60765fb49 /target/linux
parent4d4c03182e1b9a150b1be2f2bdbbf9e1705e04b3 (diff)
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[adm5120] more generic handling of Macronix flash chips, fix #2008
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7863 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/adm5120-2.6/patches-2.6.22/101-cfi-fixup-macronix-bootloc.patch40
-rw-r--r--target/linux/adm5120-2.6/patches/101-cfi-fixup-macronix-bootloc.patch52
2 files changed, 54 insertions, 38 deletions
diff --git a/target/linux/adm5120-2.6/patches-2.6.22/101-cfi-fixup-macronix-bootloc.patch b/target/linux/adm5120-2.6/patches-2.6.22/101-cfi-fixup-macronix-bootloc.patch
index 543cb940a4..5740d4ac60 100644
--- a/target/linux/adm5120-2.6/patches-2.6.22/101-cfi-fixup-macronix-bootloc.patch
+++ b/target/linux/adm5120-2.6/patches-2.6.22/101-cfi-fixup-macronix-bootloc.patch
@@ -2,7 +2,7 @@ Index: linux-2.6.22-rc6/drivers/mtd/chips/cfi_cmdset_0002.c
===================================================================
--- linux-2.6.22-rc6.orig/drivers/mtd/chips/cfi_cmdset_0002.c
+++ linux-2.6.22-rc6/drivers/mtd/chips/cfi_cmdset_0002.c
-@@ -47,12 +47,17 @@
+@@ -47,12 +47,19 @@
#define MANUFACTURER_AMD 0x0001
#define MANUFACTURER_ATMEL 0x001F
#define MANUFACTURER_SST 0x00BF
@@ -15,48 +15,56 @@ Index: linux-2.6.22-rc6/drivers/mtd/chips/cfi_cmdset_0002.c
+/* Macronix */
+#define MX29LV160B 0x2249 /* MX29LV160 Bottom-boot chip */
++#define MX29LV160T 0x22C4 /* MX29LV160 Top-boot chip */
+#define MX29LV320B 0x22A8 /* MX29LV320 Bottom-boot chip */
++#define MX29LV320T 0x22A7 /* MX29LV320 Top-boot chip */
+
static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
static int cfi_amdstd_write_buffers(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
-@@ -217,6 +222,35 @@ static void fixup_use_atmel_lock(struct
+@@ -217,6 +224,41 @@ static void fixup_use_atmel_lock(struct
mtd->flags |= MTD_STUPID_LOCK;
}
+#ifdef CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC
+/*
-+ * Some Macronix chips has bad bootblock information in the CFI table
++ * Some Macronix chips has no/bad bootblock information in the CFI table
+ */
+static void fixup_macronix_bootloc(struct mtd_info *mtd, void* param)
+{
+ struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+ struct cfi_pri_amdstd *extp = cfi->cmdset_priv;
-+ __u8 major = extp->MajorVersion;
-+ __u8 minor = extp->MinorVersion;
++ __u8 t;
+
+ switch (cfi->id) {
+ /* TODO: put affected chip ids here */
+ case MX29LV160B:
+ case MX29LV320B:
-+ if (((major << 8) | minor) != 0x3131)
-+ break;
++ t = 2; /* Bottom boot */
++ break;
++ case MX29LV160T:
++ case MX29LV320T:
++ t = 3; /* Top boot */
++ break;
++ default:
++ return;
++ }
+
-+ if (extp->TopBottom == 2)
-+ break;
++ if (extp->TopBottom == t)
++ /* boot location detected by the CFI layer is correct */
++ return;
+
-+ extp->TopBottom = 2; /* Bottom boot */
-+ printk("%s: weird Macronix chip detected, id:0x%04X, boot location "
-+ "forced to bottom\n", map->name, cfi->id);
-+ }
++ extp->TopBottom = t;
++ printk("%s: Macronix chip detected, id:0x%04X, boot location forced "
++ "to %s\n", map->name, cfi->id, (t == 2) ? "bottom" : "top");
+}
+#endif /* CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC */
+
static struct cfi_fixup cfi_fixup_table[] = {
#ifdef AMD_BOOTLOC_BUG
{ CFI_MFR_AMD, CFI_ID_ANY, fixup_amd_bootblock, NULL },
-@@ -231,6 +265,9 @@ static struct cfi_fixup cfi_fixup_table[
+@@ -231,6 +273,9 @@ static struct cfi_fixup cfi_fixup_table[
{ CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, },
#endif
{ CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
@@ -78,8 +86,8 @@ Index: linux-2.6.22-rc6/drivers/mtd/chips/Kconfig
+ bool "Force bottom boot for Macronix flash chips"
+ depends on MTD_CFI_AMDSTD
+ help
-+ Some Macronix flash chips have wrong boot-block location in the
-+ CFI table, and the driver may detect the type incorrectly. Select
++ Some Macronix flash chips have no/wrong boot-block location in the
++ CFI table, and the driver may detect the type incorrectly. Select
+ this if your board has such chip.
+
config MTD_CFI_STAA
diff --git a/target/linux/adm5120-2.6/patches/101-cfi-fixup-macronix-bootloc.patch b/target/linux/adm5120-2.6/patches/101-cfi-fixup-macronix-bootloc.patch
index 58b6dff1f2..84fc8652f4 100644
--- a/target/linux/adm5120-2.6/patches/101-cfi-fixup-macronix-bootloc.patch
+++ b/target/linux/adm5120-2.6/patches/101-cfi-fixup-macronix-bootloc.patch
@@ -1,8 +1,8 @@
-Index: linux-2.6.21.1/drivers/mtd/chips/cfi_cmdset_0002.c
+Index: linux-2.6.21.5/drivers/mtd/chips/cfi_cmdset_0002.c
===================================================================
---- linux-2.6.21.1.orig/drivers/mtd/chips/cfi_cmdset_0002.c
-+++ linux-2.6.21.1/drivers/mtd/chips/cfi_cmdset_0002.c
-@@ -47,12 +47,17 @@
+--- linux-2.6.21.5.orig/drivers/mtd/chips/cfi_cmdset_0002.c
++++ linux-2.6.21.5/drivers/mtd/chips/cfi_cmdset_0002.c
+@@ -47,12 +47,19 @@
#define MANUFACTURER_AMD 0x0001
#define MANUFACTURER_ATMEL 0x001F
#define MANUFACTURER_SST 0x00BF
@@ -15,48 +15,56 @@ Index: linux-2.6.21.1/drivers/mtd/chips/cfi_cmdset_0002.c
+/* Macronix */
+#define MX29LV160B 0x2249 /* MX29LV160 Bottom-boot chip */
++#define MX29LV160T 0x22C4 /* MX29LV160 Top-boot chip */
+#define MX29LV320B 0x22A8 /* MX29LV320 Bottom-boot chip */
++#define MX29LV320T 0x22A7 /* MX29LV320 Top-boot chip */
+
static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
static int cfi_amdstd_write_buffers(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
-@@ -217,6 +222,35 @@ static void fixup_use_atmel_lock(struct
+@@ -217,6 +224,41 @@ static void fixup_use_atmel_lock(struct
mtd->flags |= MTD_STUPID_LOCK;
}
+#ifdef CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC
+/*
-+ * Some Macronix chips has bad bootblock information in the CFI table
++ * Some Macronix chips has no/bad bootblock information in the CFI table
+ */
+static void fixup_macronix_bootloc(struct mtd_info *mtd, void* param)
+{
+ struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+ struct cfi_pri_amdstd *extp = cfi->cmdset_priv;
-+ __u8 major = extp->MajorVersion;
-+ __u8 minor = extp->MinorVersion;
++ __u8 t;
+
+ switch (cfi->id) {
+ /* TODO: put affected chip ids here */
+ case MX29LV160B:
+ case MX29LV320B:
-+ if (((major << 8) | minor) != 0x3131)
-+ break;
++ t = 2; /* Bottom boot */
++ break;
++ case MX29LV160T:
++ case MX29LV320T:
++ t = 3; /* Top boot */
++ break;
++ default:
++ return;
++ }
+
-+ if (extp->TopBottom == 2)
-+ break;
++ if (extp->TopBottom == t)
++ /* boot location detected by the CFI layer is correct */
++ return;
+
-+ extp->TopBottom = 2; /* Bottom boot */
-+ printk("%s: weird Macronix chip detected, id:0x%04X, boot location "
-+ "forced to bottom\n", map->name, cfi->id);
-+ }
++ extp->TopBottom = t;
++ printk("%s: Macronix chip detected, id:0x%04X, boot location forced "
++ "to %s\n", map->name, cfi->id, (t == 2) ? "bottom" : "top");
+}
+#endif /* CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC */
+
static struct cfi_fixup cfi_fixup_table[] = {
#ifdef AMD_BOOTLOC_BUG
{ CFI_MFR_AMD, CFI_ID_ANY, fixup_amd_bootblock, NULL },
-@@ -231,6 +265,9 @@ static struct cfi_fixup cfi_fixup_table[
+@@ -231,6 +273,9 @@ static struct cfi_fixup cfi_fixup_table[
{ CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, },
#endif
{ CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
@@ -66,10 +74,10 @@ Index: linux-2.6.21.1/drivers/mtd/chips/cfi_cmdset_0002.c
{ 0, 0, NULL, NULL }
};
static struct cfi_fixup jedec_fixup_table[] = {
-Index: linux-2.6.21.1/drivers/mtd/chips/Kconfig
+Index: linux-2.6.21.5/drivers/mtd/chips/Kconfig
===================================================================
---- linux-2.6.21.1.orig/drivers/mtd/chips/Kconfig
-+++ linux-2.6.21.1/drivers/mtd/chips/Kconfig
+--- linux-2.6.21.5.orig/drivers/mtd/chips/Kconfig
++++ linux-2.6.21.5/drivers/mtd/chips/Kconfig
@@ -199,6 +199,14 @@ config MTD_CFI_AMDSTD
provides support for one of those command sets, used on chips
including the AMD Am29LV320.
@@ -78,8 +86,8 @@ Index: linux-2.6.21.1/drivers/mtd/chips/Kconfig
+ bool "Force bottom boot for Macronix flash chips"
+ depends on MTD_CFI_AMDSTD
+ help
-+ Some Macronix flash chips have wrong boot-block location in the
-+ CFI table, and the driver may detect the type incorrectly. Select
++ Some Macronix flash chips have no/wrong boot-block location in the
++ CFI table, and the driver may detect the type incorrectly. Select
+ this if your board has such chip.
+
config MTD_CFI_STAA
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 10:16:34 +0000