/*
Common Flash Interface probe code.
(C) 2000 Red Hat. GPL'd.
- $Id: jedec_probe.c,v 1.66 2005/11/07 11:14:23 gleixner Exp $
See JEDEC (http://www.jedec.org/) standard JESD21C (section 3.5)
for the standard this probe goes back to.
/* Manufacturers */
#define MANUFACTURER_AMD 0x0001
#define MANUFACTURER_ATMEL 0x001f
+#define MANUFACTURER_EON 0x001c
#define MANUFACTURER_FUJITSU 0x0004
#define MANUFACTURER_HYUNDAI 0x00AD
#define MANUFACTURER_INTEL 0x0089
#define MANUFACTURER_ST 0x0020
#define MANUFACTURER_TOSHIBA 0x0098
#define MANUFACTURER_WINBOND 0x00da
+#define CONTINUATION_CODE 0x007f
/* AMD */
#define AM29LV040B 0x004F
#define AM29F032B 0x0041
#define AM29F002T 0x00B0
+#define AM29SL800DB 0x226B
+#define AM29SL800DT 0x22EA
/* Atmel */
#define AT49BV512 0x0003
#define AT49BV32X 0x00C8
#define AT49BV32XT 0x00C9
+/* Eon */
+#define EN29SL800BB 0x226B
+#define EN29SL800BT 0x22EA
+
/* Fujitsu */
#define MBM29F040C 0x00A4
#define MBM29F800BA 0x2258
#define M50FW080 0x002D
#define M50FW016 0x002E
#define M50LPW080 0x002F
+#define M50FLW080A 0x0080
+#define M50FLW080B 0x0081
/* SST */
#define SST29EE020 0x0010
MTD_UADDR_0x0555_0x0AAA,
MTD_UADDR_0x5555_0x2AAA,
MTD_UADDR_0x0AAA_0x0555,
+ MTD_UADDR_0xAAAA_0x5555,
MTD_UADDR_DONT_CARE, /* Requires an arbitrary address */
MTD_UADDR_UNNECESSARY, /* Does not require any address */
};
.addr2 = 0x0555
},
+ [MTD_UADDR_0xAAAA_0x5555] = {
+ .addr1 = 0xaaaa,
+ .addr2 = 0x5555
+ },
+
[MTD_UADDR_DONT_CARE] = {
.addr1 = 0x0000, /* Doesn't matter which address */
.addr2 = 0x0000 /* is used - must be last entry */
ERASEINFO(0x02000,2),
ERASEINFO(0x04000,1),
}
+ }, {
+ .mfr_id = MANUFACTURER_AMD,
+ .dev_id = AM29SL800DT,
+ .name = "AMD AM29SL800DT",
+ .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
+ .uaddr = MTD_UADDR_0x0AAA_0x0555,
+ .dev_size = SIZE_1MiB,
+ .cmd_set = P_ID_AMD_STD,
+ .nr_regions = 4,
+ .regions = {
+ ERASEINFO(0x10000,15),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x04000,1),
+ }
+ }, {
+ .mfr_id = MANUFACTURER_AMD,
+ .dev_id = AM29SL800DB,
+ .name = "AMD AM29SL800DB",
+ .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
+ .uaddr = MTD_UADDR_0x0AAA_0x0555,
+ .dev_size = SIZE_1MiB,
+ .cmd_set = P_ID_AMD_STD,
+ .nr_regions = 4,
+ .regions = {
+ ERASEINFO(0x04000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x10000,15),
+ }
}, {
.mfr_id = MANUFACTURER_ATMEL,
.dev_id = AT49BV512,
ERASEINFO(0x10000,63),
ERASEINFO(0x02000,8)
}
+ }, {
+ .mfr_id = MANUFACTURER_EON,
+ .dev_id = EN29SL800BT,
+ .name = "Eon EN29SL800BT",
+ .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
+ .uaddr = MTD_UADDR_0x0AAA_0x0555,
+ .dev_size = SIZE_1MiB,
+ .cmd_set = P_ID_AMD_STD,
+ .nr_regions = 4,
+ .regions = {
+ ERASEINFO(0x10000,15),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x04000,1),
+ }
+ }, {
+ .mfr_id = MANUFACTURER_EON,
+ .dev_id = EN29SL800BB,
+ .name = "Eon EN29SL800BB",
+ .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
+ .uaddr = MTD_UADDR_0x0AAA_0x0555,
+ .dev_size = SIZE_1MiB,
+ .cmd_set = P_ID_AMD_STD,
+ .nr_regions = 4,
+ .regions = {
+ ERASEINFO(0x04000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x10000,15),
+ }
}, {
.mfr_id = MANUFACTURER_FUJITSU,
.dev_id = MBM29F040C,
.mfr_id = MANUFACTURER_SST, /* should be CFI */
.dev_id = SST39LF160,
.name = "SST 39LF160",
- .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
- .uaddr = MTD_UADDR_0x5555_0x2AAA, /* ???? */
+ .devtypes = CFI_DEVICETYPE_X16,
+ .uaddr = MTD_UADDR_0xAAAA_0x5555,
.dev_size = SIZE_2MiB,
.cmd_set = P_ID_AMD_STD,
.nr_regions = 2,
.mfr_id = MANUFACTURER_SST, /* should be CFI */
.dev_id = SST39VF1601,
.name = "SST 39VF1601",
- .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
- .uaddr = MTD_UADDR_0x5555_0x2AAA, /* ???? */
+ .devtypes = CFI_DEVICETYPE_X16,
+ .uaddr = MTD_UADDR_0xAAAA_0x5555,
.dev_size = SIZE_2MiB,
.cmd_set = P_ID_AMD_STD,
.nr_regions = 2,
.nr_regions = 1,
.regions = {
ERASEINFO(0x10000,16),
+ },
+ }, {
+ .mfr_id = MANUFACTURER_ST,
+ .dev_id = M50FLW080A,
+ .name = "ST M50FLW080A",
+ .devtypes = CFI_DEVICETYPE_X8,
+ .uaddr = MTD_UADDR_UNNECESSARY,
+ .dev_size = SIZE_1MiB,
+ .cmd_set = P_ID_INTEL_EXT,
+ .nr_regions = 4,
+ .regions = {
+ ERASEINFO(0x1000,16),
+ ERASEINFO(0x10000,13),
+ ERASEINFO(0x1000,16),
+ ERASEINFO(0x1000,16),
+ }
+ }, {
+ .mfr_id = MANUFACTURER_ST,
+ .dev_id = M50FLW080B,
+ .name = "ST M50FLW080B",
+ .devtypes = CFI_DEVICETYPE_X8,
+ .uaddr = MTD_UADDR_UNNECESSARY,
+ .dev_size = SIZE_1MiB,
+ .cmd_set = P_ID_INTEL_EXT,
+ .nr_regions = 4,
+ .regions = {
+ ERASEINFO(0x1000,16),
+ ERASEINFO(0x1000,16),
+ ERASEINFO(0x10000,13),
+ ERASEINFO(0x1000,16),
}
}, {
.mfr_id = MANUFACTURER_TOSHIBA,
{
map_word result;
unsigned long mask;
- u32 ofs = cfi_build_cmd_addr(0, cfi_interleave(cfi), cfi->device_type);
- mask = (1 << (cfi->device_type * 8)) -1;
- result = map_read(map, base + ofs);
+ int bank = 0;
+
+ /* According to JEDEC "Standard Manufacturer's Identification Code"
+ * (http://www.jedec.org/download/search/jep106W.pdf)
+ * several first banks can contain 0x7f instead of actual ID
+ */
+ do {
+ uint32_t ofs = cfi_build_cmd_addr(0 + (bank << 8),
+ cfi_interleave(cfi),
+ cfi->device_type);
+ mask = (1 << (cfi->device_type * 8)) - 1;
+ result = map_read(map, base + ofs);
+ bank++;
+ } while ((result.x[0] & mask) == CONTINUATION_CODE);
+
return result.x[0] & mask;
}