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diff -Nur linux-2.6.15/drivers/mtd/chips/cfi_probe.c linux-2.6.15-openwrt/drivers/mtd/chips/cfi_probe.c
--- linux-2.6.15/drivers/mtd/chips/cfi_probe.c 2006-01-03 04:21:10.000000000 +0100
+++ linux-2.6.15-openwrt/drivers/mtd/chips/cfi_probe.c 2006-01-10 00:32:32.000000000 +0100
@@ -26,6 +26,74 @@
static void print_cfi_ident(struct cfi_ident *);
#endif
+#if 1
+
+#define AMD_AUTOSEL_OFF1 0xAAA
+#define AMD_AUTOSEL_OFF2 0x555
+#define AMD_MANUF_ID 0x1
+#define AMD_DEVICE_ID1 0xF6 /* T */
+#define AMD_DEVICE_ID2 0xF9 /* B */
+/* Foll. are definitions for Macronix Flash Part */
+#define MCX_MANUF_ID 0xC2
+#define MCX_DEVICE_ID1 0xA7
+#define MCX_DEVICE_ID2 0xA8
+/* Foll. common to both AMD and Macronix */
+#define FACTORY_LOCKED 0x99
+#define USER_LOCKED 0x19
+
+/* NOTE: AP-70/6x use BYTE mode flash access. Therefore the
+ * lowest Addr. pin in the flash is not A0 but A-1 (A minus 1).
+ * CPU's A0 is tied to Flash's A-1, A1 to A0 and so on. This
+ * gives 4MB of byte-addressable mem. In byte mode, all addr
+ * need to be multiplied by 2 (i.e compared to word mode).
+ * NOTE: AMD_AUTOSEL_OFF1 and OFF2 are already mult. by 2
+ * Just blindly use the addr offsets suggested in the manual
+ * for byte mode and you'll be OK. Offs. in Table 6 need to
+ * be mult by 2 (for getting autosel params)
+ */
+void
+flash_detect(struct map_info *map, __u32 base, struct cfi_private *cfi)
+{
+ map_word val[3];
+ int osf = cfi->interleave * cfi->device_type; // =2 for AP70/6x
+ char *manuf, *part, *lock ;
+
+ if (osf != 1) return ;
+
+ cfi_send_gen_cmd(0xAA, AMD_AUTOSEL_OFF1, base, map, cfi, cfi->device_type, NULL);
+ cfi_send_gen_cmd(0x55, AMD_AUTOSEL_OFF2, base, map, cfi, cfi->device_type, NULL);
+ cfi_send_gen_cmd(0x90, AMD_AUTOSEL_OFF1, base, map, cfi, cfi->device_type, NULL);
+ val[0] = map_read(map, base) ; // manuf ID
+ val[1] = map_read(map, base+2) ; // device ID
+ val[2] = map_read(map, base+6) ; // lock indicator
+#if 0
+printk("v1=0x%x v2=0x%x v3=0x%x\n", val[0], val[1], val[2]) ;
+#endif
+ if (val[0].x[0] == AMD_MANUF_ID) {
+ manuf = "AMD Flash" ;
+ if (val[1].x[0] == AMD_DEVICE_ID1)
+ part = "AM29LV320D (Top)" ;
+ else if (val[1].x[0] == AMD_DEVICE_ID2)
+ part = "AM29LV320D (Bot)" ;
+ else part = "Unknown" ;
+ } else if (val[0].x[0] == MCX_MANUF_ID) {
+ manuf = "Macronix Flash" ;
+ if (val[1].x[0] == MCX_DEVICE_ID1)
+ part = "MX29LV320A (Top)" ;
+ else if (val[1].x[0] == MCX_DEVICE_ID2)
+ part = "MX29LV320A (Bot)" ;
+ else part = "Unknown" ;
+ } else
+ return ;
+ if (val[2].x[0] == FACTORY_LOCKED)
+ lock = "Factory Locked" ;
+ else if (val[2].x[0] == USER_LOCKED)
+ lock = "User Locked" ;
+ else lock = "Unknown locking" ;
+ printk("%s %s (%s)\n", manuf, part, lock) ;
+}
+#endif
+
static int cfi_probe_chip(struct map_info *map, __u32 base,
unsigned long *chip_map, struct cfi_private *cfi);
static int cfi_chip_setup(struct map_info *map, struct cfi_private *cfi);
@@ -118,6 +186,10 @@
}
xip_disable();
+#if 1
+ //cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);
+ flash_detect(map, base, cfi) ;
+#endif
cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);
cfi_send_gen_cmd(0xFF, 0, base, map, cfi, cfi->device_type, NULL);
cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL);
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