aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/mtd/chips/jedec_probe.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mtd/chips/jedec_probe.c')
-rw-r--r--drivers/mtd/chips/jedec_probe.c133
1 files changed, 125 insertions, 8 deletions
diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c
index aa07575eb288..dbba5abf0db8 100644
--- a/drivers/mtd/chips/jedec_probe.c
+++ b/drivers/mtd/chips/jedec_probe.c
@@ -1,7 +1,6 @@
1/* 1/*
2 Common Flash Interface probe code. 2 Common Flash Interface probe code.
3 (C) 2000 Red Hat. GPL'd. 3 (C) 2000 Red Hat. GPL'd.
4 $Id: jedec_probe.c,v 1.66 2005/11/07 11:14:23 gleixner Exp $
5 See JEDEC (http://www.jedec.org/) standard JESD21C (section 3.5) 4 See JEDEC (http://www.jedec.org/) standard JESD21C (section 3.5)
6 for the standard this probe goes back to. 5 for the standard this probe goes back to.
7 6
@@ -26,6 +25,7 @@
26/* Manufacturers */ 25/* Manufacturers */
27#define MANUFACTURER_AMD 0x0001 26#define MANUFACTURER_AMD 0x0001
28#define MANUFACTURER_ATMEL 0x001f 27#define MANUFACTURER_ATMEL 0x001f
28#define MANUFACTURER_EON 0x001c
29#define MANUFACTURER_FUJITSU 0x0004 29#define MANUFACTURER_FUJITSU 0x0004
30#define MANUFACTURER_HYUNDAI 0x00AD 30#define MANUFACTURER_HYUNDAI 0x00AD
31#define MANUFACTURER_INTEL 0x0089 31#define MANUFACTURER_INTEL 0x0089
@@ -37,6 +37,7 @@
37#define MANUFACTURER_ST 0x0020 37#define MANUFACTURER_ST 0x0020
38#define MANUFACTURER_TOSHIBA 0x0098 38#define MANUFACTURER_TOSHIBA 0x0098
39#define MANUFACTURER_WINBOND 0x00da 39#define MANUFACTURER_WINBOND 0x00da
40#define CONTINUATION_CODE 0x007f
40 41
41 42
42/* AMD */ 43/* AMD */
@@ -58,6 +59,8 @@
58#define AM29LV040B 0x004F 59#define AM29LV040B 0x004F
59#define AM29F032B 0x0041 60#define AM29F032B 0x0041
60#define AM29F002T 0x00B0 61#define AM29F002T 0x00B0
62#define AM29SL800DB 0x226B
63#define AM29SL800DT 0x22EA
61 64
62/* Atmel */ 65/* Atmel */
63#define AT49BV512 0x0003 66#define AT49BV512 0x0003
@@ -67,6 +70,10 @@
67#define AT49BV32X 0x00C8 70#define AT49BV32X 0x00C8
68#define AT49BV32XT 0x00C9 71#define AT49BV32XT 0x00C9
69 72
73/* Eon */
74#define EN29SL800BB 0x226B
75#define EN29SL800BT 0x22EA
76
70/* Fujitsu */ 77/* Fujitsu */
71#define MBM29F040C 0x00A4 78#define MBM29F040C 0x00A4
72#define MBM29F800BA 0x2258 79#define MBM29F800BA 0x2258
@@ -141,6 +148,8 @@
141#define M50FW080 0x002D 148#define M50FW080 0x002D
142#define M50FW016 0x002E 149#define M50FW016 0x002E
143#define M50LPW080 0x002F 150#define M50LPW080 0x002F
151#define M50FLW080A 0x0080
152#define M50FLW080B 0x0081
144 153
145/* SST */ 154/* SST */
146#define SST29EE020 0x0010 155#define SST29EE020 0x0010
@@ -191,6 +200,7 @@ enum uaddr {
191 MTD_UADDR_0x0555_0x0AAA, 200 MTD_UADDR_0x0555_0x0AAA,
192 MTD_UADDR_0x5555_0x2AAA, 201 MTD_UADDR_0x5555_0x2AAA,
193 MTD_UADDR_0x0AAA_0x0555, 202 MTD_UADDR_0x0AAA_0x0555,
203 MTD_UADDR_0xAAAA_0x5555,
194 MTD_UADDR_DONT_CARE, /* Requires an arbitrary address */ 204 MTD_UADDR_DONT_CARE, /* Requires an arbitrary address */
195 MTD_UADDR_UNNECESSARY, /* Does not require any address */ 205 MTD_UADDR_UNNECESSARY, /* Does not require any address */
196}; 206};
@@ -238,6 +248,11 @@ static const struct unlock_addr unlock_addrs[] = {
238 .addr2 = 0x0555 248 .addr2 = 0x0555
239 }, 249 },
240 250
251 [MTD_UADDR_0xAAAA_0x5555] = {
252 .addr1 = 0xaaaa,
253 .addr2 = 0x5555
254 },
255
241 [MTD_UADDR_DONT_CARE] = { 256 [MTD_UADDR_DONT_CARE] = {
242 .addr1 = 0x0000, /* Doesn't matter which address */ 257 .addr1 = 0x0000, /* Doesn't matter which address */
243 .addr2 = 0x0000 /* is used - must be last entry */ 258 .addr2 = 0x0000 /* is used - must be last entry */
@@ -522,6 +537,36 @@ static const struct amd_flash_info jedec_table[] = {
522 ERASEINFO(0x04000,1), 537 ERASEINFO(0x04000,1),
523 } 538 }
524 }, { 539 }, {
540 .mfr_id = MANUFACTURER_AMD,
541 .dev_id = AM29SL800DT,
542 .name = "AMD AM29SL800DT",
543 .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
544 .uaddr = MTD_UADDR_0x0AAA_0x0555,
545 .dev_size = SIZE_1MiB,
546 .cmd_set = P_ID_AMD_STD,
547 .nr_regions = 4,
548 .regions = {
549 ERASEINFO(0x10000,15),
550 ERASEINFO(0x08000,1),
551 ERASEINFO(0x02000,2),
552 ERASEINFO(0x04000,1),
553 }
554 }, {
555 .mfr_id = MANUFACTURER_AMD,
556 .dev_id = AM29SL800DB,
557 .name = "AMD AM29SL800DB",
558 .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
559 .uaddr = MTD_UADDR_0x0AAA_0x0555,
560 .dev_size = SIZE_1MiB,
561 .cmd_set = P_ID_AMD_STD,
562 .nr_regions = 4,
563 .regions = {
564 ERASEINFO(0x04000,1),
565 ERASEINFO(0x02000,2),
566 ERASEINFO(0x08000,1),
567 ERASEINFO(0x10000,15),
568 }
569 }, {
525 .mfr_id = MANUFACTURER_ATMEL, 570 .mfr_id = MANUFACTURER_ATMEL,
526 .dev_id = AT49BV512, 571 .dev_id = AT49BV512,
527 .name = "Atmel AT49BV512", 572 .name = "Atmel AT49BV512",
@@ -599,6 +644,36 @@ static const struct amd_flash_info jedec_table[] = {
599 ERASEINFO(0x02000,8) 644 ERASEINFO(0x02000,8)
600 } 645 }
601 }, { 646 }, {
647 .mfr_id = MANUFACTURER_EON,
648 .dev_id = EN29SL800BT,
649 .name = "Eon EN29SL800BT",
650 .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
651 .uaddr = MTD_UADDR_0x0AAA_0x0555,
652 .dev_size = SIZE_1MiB,
653 .cmd_set = P_ID_AMD_STD,
654 .nr_regions = 4,
655 .regions = {
656 ERASEINFO(0x10000,15),
657 ERASEINFO(0x08000,1),
658 ERASEINFO(0x02000,2),
659 ERASEINFO(0x04000,1),
660 }
661 }, {
662 .mfr_id = MANUFACTURER_EON,
663 .dev_id = EN29SL800BB,
664 .name = "Eon EN29SL800BB",
665 .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
666 .uaddr = MTD_UADDR_0x0AAA_0x0555,
667 .dev_size = SIZE_1MiB,
668 .cmd_set = P_ID_AMD_STD,
669 .nr_regions = 4,
670 .regions = {
671 ERASEINFO(0x04000,1),
672 ERASEINFO(0x02000,2),
673 ERASEINFO(0x08000,1),
674 ERASEINFO(0x10000,15),
675 }
676 }, {
602 .mfr_id = MANUFACTURER_FUJITSU, 677 .mfr_id = MANUFACTURER_FUJITSU,
603 .dev_id = MBM29F040C, 678 .dev_id = MBM29F040C,
604 .name = "Fujitsu MBM29F040C", 679 .name = "Fujitsu MBM29F040C",
@@ -1392,8 +1467,8 @@ static const struct amd_flash_info jedec_table[] = {
1392 .mfr_id = MANUFACTURER_SST, /* should be CFI */ 1467 .mfr_id = MANUFACTURER_SST, /* should be CFI */
1393 .dev_id = SST39LF160, 1468 .dev_id = SST39LF160,
1394 .name = "SST 39LF160", 1469 .name = "SST 39LF160",
1395 .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8, 1470 .devtypes = CFI_DEVICETYPE_X16,
1396 .uaddr = MTD_UADDR_0x5555_0x2AAA, /* ???? */ 1471 .uaddr = MTD_UADDR_0xAAAA_0x5555,
1397 .dev_size = SIZE_2MiB, 1472 .dev_size = SIZE_2MiB,
1398 .cmd_set = P_ID_AMD_STD, 1473 .cmd_set = P_ID_AMD_STD,
1399 .nr_regions = 2, 1474 .nr_regions = 2,
@@ -1405,8 +1480,8 @@ static const struct amd_flash_info jedec_table[] = {
1405 .mfr_id = MANUFACTURER_SST, /* should be CFI */ 1480 .mfr_id = MANUFACTURER_SST, /* should be CFI */
1406 .dev_id = SST39VF1601, 1481 .dev_id = SST39VF1601,
1407 .name = "SST 39VF1601", 1482 .name = "SST 39VF1601",
1408 .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8, 1483 .devtypes = CFI_DEVICETYPE_X16,
1409 .uaddr = MTD_UADDR_0x5555_0x2AAA, /* ???? */ 1484 .uaddr = MTD_UADDR_0xAAAA_0x5555,
1410 .dev_size = SIZE_2MiB, 1485 .dev_size = SIZE_2MiB,
1411 .cmd_set = P_ID_AMD_STD, 1486 .cmd_set = P_ID_AMD_STD,
1412 .nr_regions = 2, 1487 .nr_regions = 2,
@@ -1590,6 +1665,36 @@ static const struct amd_flash_info jedec_table[] = {
1590 .nr_regions = 1, 1665 .nr_regions = 1,
1591 .regions = { 1666 .regions = {
1592 ERASEINFO(0x10000,16), 1667 ERASEINFO(0x10000,16),
1668 },
1669 }, {
1670 .mfr_id = MANUFACTURER_ST,
1671 .dev_id = M50FLW080A,
1672 .name = "ST M50FLW080A",
1673 .devtypes = CFI_DEVICETYPE_X8,
1674 .uaddr = MTD_UADDR_UNNECESSARY,
1675 .dev_size = SIZE_1MiB,
1676 .cmd_set = P_ID_INTEL_EXT,
1677 .nr_regions = 4,
1678 .regions = {
1679 ERASEINFO(0x1000,16),
1680 ERASEINFO(0x10000,13),
1681 ERASEINFO(0x1000,16),
1682 ERASEINFO(0x1000,16),
1683 }
1684 }, {
1685 .mfr_id = MANUFACTURER_ST,
1686 .dev_id = M50FLW080B,
1687 .name = "ST M50FLW080B",
1688 .devtypes = CFI_DEVICETYPE_X8,
1689 .uaddr = MTD_UADDR_UNNECESSARY,
1690 .dev_size = SIZE_1MiB,
1691 .cmd_set = P_ID_INTEL_EXT,
1692 .nr_regions = 4,
1693 .regions = {
1694 ERASEINFO(0x1000,16),
1695 ERASEINFO(0x1000,16),
1696 ERASEINFO(0x10000,13),
1697 ERASEINFO(0x1000,16),
1593 } 1698 }
1594 }, { 1699 }, {
1595 .mfr_id = MANUFACTURER_TOSHIBA, 1700 .mfr_id = MANUFACTURER_TOSHIBA,
@@ -1696,9 +1801,21 @@ static inline u32 jedec_read_mfr(struct map_info *map, uint32_t base,
1696{ 1801{
1697 map_word result; 1802 map_word result;
1698 unsigned long mask; 1803 unsigned long mask;
1699 u32 ofs = cfi_build_cmd_addr(0, cfi_interleave(cfi), cfi->device_type); 1804 int bank = 0;
1700 mask = (1 << (cfi->device_type * 8)) -1; 1805
1701 result = map_read(map, base + ofs); 1806 /* According to JEDEC "Standard Manufacturer's Identification Code"
1807 * (http://www.jedec.org/download/search/jep106W.pdf)
1808 * several first banks can contain 0x7f instead of actual ID
1809 */
1810 do {
1811 uint32_t ofs = cfi_build_cmd_addr(0 + (bank << 8),
1812 cfi_interleave(cfi),
1813 cfi->device_type);
1814 mask = (1 << (cfi->device_type * 8)) - 1;
1815 result = map_read(map, base + ofs);
1816 bank++;
1817 } while ((result.x[0] & mask) == CONTINUATION_CODE);
1818
1702 return result.x[0] & mask; 1819 return result.x[0] & mask;
1703} 1820}
1704 1821
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-25 22:38:47 -0400