mirror of https://github.com/hak5/openwrt-owl.git
91 lines
3.2 KiB
Diff
91 lines
3.2 KiB
Diff
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);
|
|
|