mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-15 11:24:04 +02:00
85 lines
2.7 KiB
Diff
85 lines
2.7 KiB
Diff
|
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
|
||
|
|
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
|
||
|
|
@@ -53,6 +53,12 @@
|
||
|
|
#define AT49BV6416 0x00d6
|
||
|
|
#define MANUFACTURER_SAMSUNG 0x00ec
|
||
|
|
|
||
|
|
+/* 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 *);
|
||
|
|
@@ -283,6 +289,41 @@ static void fixup_s29gl032n_sectors(stru
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
+#ifdef CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC
|
||
|
|
+/*
|
||
|
|
+ * 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 t;
|
||
|
|
+
|
||
|
|
+ switch (cfi->id) {
|
||
|
|
+ /* TODO: put affected chip ids here */
|
||
|
|
+ case MX29LV160B:
|
||
|
|
+ case MX29LV320B:
|
||
|
|
+ t = 2; /* Bottom boot */
|
||
|
|
+ break;
|
||
|
|
+ case MX29LV160T:
|
||
|
|
+ case MX29LV320T:
|
||
|
|
+ t = 3; /* Top boot */
|
||
|
|
+ break;
|
||
|
|
+ default:
|
||
|
|
+ return;
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ if (extp->TopBottom == t)
|
||
|
|
+ /* boot location detected by the CFI layer is correct */
|
||
|
|
+ return;
|
||
|
|
+
|
||
|
|
+ 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[] = {
|
||
|
|
{ CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
|
||
|
|
#ifdef AMD_BOOTLOC_BUG
|
||
|
|
@@ -319,6 +360,9 @@ static struct cfi_fixup fixup_table[] =
|
||
|
|
*/
|
||
|
|
{ CFI_MFR_ANY, CFI_ID_ANY, fixup_use_erase_chip, NULL },
|
||
|
|
{ CFI_MFR_ATMEL, AT49BV6416, fixup_use_atmel_lock, NULL },
|
||
|
|
+#ifdef CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC
|
||
|
|
+ { MANUFACTURER_MACRONIX, CFI_ID_ANY, fixup_macronix_bootloc, NULL, },
|
||
|
|
+#endif
|
||
|
|
{ 0, 0, NULL, NULL }
|
||
|
|
};
|
||
|
|
|
||
|
|
--- a/drivers/mtd/chips/Kconfig
|
||
|
|
+++ b/drivers/mtd/chips/Kconfig
|
||
|
|
@@ -198,6 +198,14 @@ config MTD_CFI_AMDSTD
|
||
|
|
provides support for one of those command sets, used on chips
|
||
|
|
including the AMD Am29LV320.
|
||
|
|
|
||
|
|
+config MTD_CFI_FIXUP_MACRONIX_BOOTLOC
|
||
|
|
+ bool "Fix boot-block location for Macronix flash chips"
|
||
|
|
+ depends on MTD_CFI_AMDSTD
|
||
|
|
+ help
|
||
|
|
+ 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
|
||
|
|
tristate "Support for ST (Advanced Architecture) flash chips"
|
||
|
|
depends on MTD_GEN_PROBE
|