181b20cccSMichael Schwingen /* 281b20cccSMichael Schwingen * (C) Copyright 2007 381b20cccSMichael Schwingen * Michael Schwingen, <michael@schwingen.org> 481b20cccSMichael Schwingen * 581b20cccSMichael Schwingen * based in great part on jedec_probe.c from linux kernel: 681b20cccSMichael Schwingen * (C) 2000 Red Hat. GPL'd. 781b20cccSMichael Schwingen * Occasionally maintained by Thayne Harbaugh tharbaugh at lnxi dot com 881b20cccSMichael Schwingen * 981b20cccSMichael Schwingen * See file CREDITS for list of people who contributed to this 1081b20cccSMichael Schwingen * project. 1181b20cccSMichael Schwingen * 1281b20cccSMichael Schwingen * This program is free software; you can redistribute it and/or 1381b20cccSMichael Schwingen * modify it under the terms of the GNU General Public License as 1481b20cccSMichael Schwingen * published by the Free Software Foundation; either version 2 of 1581b20cccSMichael Schwingen * the License, or (at your option) any later version. 1681b20cccSMichael Schwingen * 1781b20cccSMichael Schwingen * This program is distributed in the hope that it will be useful, 1881b20cccSMichael Schwingen * but WITHOUT ANY WARRANTY; without even the implied warranty of 1981b20cccSMichael Schwingen * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 2081b20cccSMichael Schwingen * GNU General Public License for more details. 2181b20cccSMichael Schwingen * 2281b20cccSMichael Schwingen * You should have received a copy of the GNU General Public License 2381b20cccSMichael Schwingen * along with this program; if not, write to the Free Software 2481b20cccSMichael Schwingen * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 2581b20cccSMichael Schwingen * MA 02111-1307 USA 2681b20cccSMichael Schwingen * 2781b20cccSMichael Schwingen */ 2881b20cccSMichael Schwingen 2981b20cccSMichael Schwingen /* The DEBUG define must be before common to enable debugging */ 3081b20cccSMichael Schwingen /*#define DEBUG*/ 3181b20cccSMichael Schwingen 3281b20cccSMichael Schwingen #include <common.h> 3381b20cccSMichael Schwingen #include <asm/processor.h> 3481b20cccSMichael Schwingen #include <asm/io.h> 3581b20cccSMichael Schwingen #include <asm/byteorder.h> 3681b20cccSMichael Schwingen #include <environment.h> 3781b20cccSMichael Schwingen 3881b20cccSMichael Schwingen #define P_ID_AMD_STD CFI_CMDSET_AMD_LEGACY 3981b20cccSMichael Schwingen 4081b20cccSMichael Schwingen /* AMD */ 410192d7d5SStefan Roese #define AM29DL800BB 0x22CB 4281b20cccSMichael Schwingen #define AM29DL800BT 0x224A 4381b20cccSMichael Schwingen 4481b20cccSMichael Schwingen #define AM29F800BB 0x2258 4581b20cccSMichael Schwingen #define AM29F800BT 0x22D6 4681b20cccSMichael Schwingen #define AM29LV400BB 0x22BA 4781b20cccSMichael Schwingen #define AM29LV400BT 0x22B9 4881b20cccSMichael Schwingen #define AM29LV800BB 0x225B 4981b20cccSMichael Schwingen #define AM29LV800BT 0x22DA 5081b20cccSMichael Schwingen #define AM29LV160DT 0x22C4 5181b20cccSMichael Schwingen #define AM29LV160DB 0x2249 5281b20cccSMichael Schwingen #define AM29F017D 0x003D 5381b20cccSMichael Schwingen #define AM29F016D 0x00AD 5481b20cccSMichael Schwingen #define AM29F080 0x00D5 5581b20cccSMichael Schwingen #define AM29F040 0x00A4 5681b20cccSMichael Schwingen #define AM29LV040B 0x004F 5781b20cccSMichael Schwingen #define AM29F032B 0x0041 5881b20cccSMichael Schwingen #define AM29F002T 0x00B0 5981b20cccSMichael Schwingen 6081b20cccSMichael Schwingen /* SST */ 6181b20cccSMichael Schwingen #define SST39LF800 0x2781 6281b20cccSMichael Schwingen #define SST39LF160 0x2782 6381b20cccSMichael Schwingen #define SST39VF1601 0x234b 6481b20cccSMichael Schwingen #define SST39LF512 0x00D4 6581b20cccSMichael Schwingen #define SST39LF010 0x00D5 6681b20cccSMichael Schwingen #define SST39LF020 0x00D6 6781b20cccSMichael Schwingen #define SST39LF040 0x00D7 6881b20cccSMichael Schwingen #define SST39SF010A 0x00B5 6981b20cccSMichael Schwingen #define SST39SF020A 0x00B6 7081b20cccSMichael Schwingen 7181b20cccSMichael Schwingen 7281b20cccSMichael Schwingen /* 7381b20cccSMichael Schwingen * Unlock address sets for AMD command sets. 7481b20cccSMichael Schwingen * Intel command sets use the MTD_UADDR_UNNECESSARY. 7581b20cccSMichael Schwingen * Each identifier, except MTD_UADDR_UNNECESSARY, and 7681b20cccSMichael Schwingen * MTD_UADDR_NO_SUPPORT must be defined below in unlock_addrs[]. 7781b20cccSMichael Schwingen * MTD_UADDR_NOT_SUPPORTED must be 0 so that structure 7881b20cccSMichael Schwingen * initialization need not require initializing all of the 7981b20cccSMichael Schwingen * unlock addresses for all bit widths. 8081b20cccSMichael Schwingen */ 8181b20cccSMichael Schwingen enum uaddr { 8281b20cccSMichael Schwingen MTD_UADDR_NOT_SUPPORTED = 0, /* data width not supported */ 8381b20cccSMichael Schwingen MTD_UADDR_0x0555_0x02AA, 8481b20cccSMichael Schwingen MTD_UADDR_0x0555_0x0AAA, 8581b20cccSMichael Schwingen MTD_UADDR_0x5555_0x2AAA, 8681b20cccSMichael Schwingen MTD_UADDR_0x0AAA_0x0555, 8781b20cccSMichael Schwingen MTD_UADDR_DONT_CARE, /* Requires an arbitrary address */ 8881b20cccSMichael Schwingen MTD_UADDR_UNNECESSARY, /* Does not require any address */ 8981b20cccSMichael Schwingen }; 9081b20cccSMichael Schwingen 9181b20cccSMichael Schwingen 9281b20cccSMichael Schwingen struct unlock_addr { 9381b20cccSMichael Schwingen u32 addr1; 9481b20cccSMichael Schwingen u32 addr2; 9581b20cccSMichael Schwingen }; 9681b20cccSMichael Schwingen 9781b20cccSMichael Schwingen 9881b20cccSMichael Schwingen /* 9981b20cccSMichael Schwingen * I don't like the fact that the first entry in unlock_addrs[] 10081b20cccSMichael Schwingen * exists, but is for MTD_UADDR_NOT_SUPPORTED - and, therefore, 10181b20cccSMichael Schwingen * should not be used. The problem is that structures with 10281b20cccSMichael Schwingen * initializers have extra fields initialized to 0. It is _very_ 10381b20cccSMichael Schwingen * desireable to have the unlock address entries for unsupported 10481b20cccSMichael Schwingen * data widths automatically initialized - that means that 10581b20cccSMichael Schwingen * MTD_UADDR_NOT_SUPPORTED must be 0 and the first entry here 10681b20cccSMichael Schwingen * must go unused. 10781b20cccSMichael Schwingen */ 10881b20cccSMichael Schwingen static const struct unlock_addr unlock_addrs[] = { 10981b20cccSMichael Schwingen [MTD_UADDR_NOT_SUPPORTED] = { 11081b20cccSMichael Schwingen .addr1 = 0xffff, 11181b20cccSMichael Schwingen .addr2 = 0xffff 11281b20cccSMichael Schwingen }, 11381b20cccSMichael Schwingen 11481b20cccSMichael Schwingen [MTD_UADDR_0x0555_0x02AA] = { 11581b20cccSMichael Schwingen .addr1 = 0x0555, 11681b20cccSMichael Schwingen .addr2 = 0x02aa 11781b20cccSMichael Schwingen }, 11881b20cccSMichael Schwingen 11981b20cccSMichael Schwingen [MTD_UADDR_0x0555_0x0AAA] = { 12081b20cccSMichael Schwingen .addr1 = 0x0555, 12181b20cccSMichael Schwingen .addr2 = 0x0aaa 12281b20cccSMichael Schwingen }, 12381b20cccSMichael Schwingen 12481b20cccSMichael Schwingen [MTD_UADDR_0x5555_0x2AAA] = { 12581b20cccSMichael Schwingen .addr1 = 0x5555, 12681b20cccSMichael Schwingen .addr2 = 0x2aaa 12781b20cccSMichael Schwingen }, 12881b20cccSMichael Schwingen 12981b20cccSMichael Schwingen [MTD_UADDR_0x0AAA_0x0555] = { 13081b20cccSMichael Schwingen .addr1 = 0x0AAA, 13181b20cccSMichael Schwingen .addr2 = 0x0555 13281b20cccSMichael Schwingen }, 13381b20cccSMichael Schwingen 13481b20cccSMichael Schwingen [MTD_UADDR_DONT_CARE] = { 13581b20cccSMichael Schwingen .addr1 = 0x0000, /* Doesn't matter which address */ 13681b20cccSMichael Schwingen .addr2 = 0x0000 /* is used - must be last entry */ 13781b20cccSMichael Schwingen }, 13881b20cccSMichael Schwingen 13981b20cccSMichael Schwingen [MTD_UADDR_UNNECESSARY] = { 14081b20cccSMichael Schwingen .addr1 = 0x0000, 14181b20cccSMichael Schwingen .addr2 = 0x0000 14281b20cccSMichael Schwingen } 14381b20cccSMichael Schwingen }; 14481b20cccSMichael Schwingen 14581b20cccSMichael Schwingen 14681b20cccSMichael Schwingen struct amd_flash_info { 14781b20cccSMichael Schwingen const __u16 mfr_id; 14881b20cccSMichael Schwingen const __u16 dev_id; 14981b20cccSMichael Schwingen const char *name; 15081b20cccSMichael Schwingen const int DevSize; 15181b20cccSMichael Schwingen const int NumEraseRegions; 15281b20cccSMichael Schwingen const int CmdSet; 15381b20cccSMichael Schwingen const __u8 uaddr[4]; /* unlock addrs for 8, 16, 32, 64 */ 15481b20cccSMichael Schwingen const ulong regions[6]; 15581b20cccSMichael Schwingen }; 15681b20cccSMichael Schwingen 15781b20cccSMichael Schwingen #define ERASEINFO(size,blocks) (size<<8)|(blocks-1) 15881b20cccSMichael Schwingen 15981b20cccSMichael Schwingen #define SIZE_64KiB 16 16081b20cccSMichael Schwingen #define SIZE_128KiB 17 16181b20cccSMichael Schwingen #define SIZE_256KiB 18 16281b20cccSMichael Schwingen #define SIZE_512KiB 19 16381b20cccSMichael Schwingen #define SIZE_1MiB 20 16481b20cccSMichael Schwingen #define SIZE_2MiB 21 16581b20cccSMichael Schwingen #define SIZE_4MiB 22 16681b20cccSMichael Schwingen #define SIZE_8MiB 23 16781b20cccSMichael Schwingen 16881b20cccSMichael Schwingen static const struct amd_flash_info jedec_table[] = { 1696d0f6bcfSJean-Christophe PLAGNIOL-VILLARD #ifdef CONFIG_SYS_FLASH_LEGACY_256Kx8 17081b20cccSMichael Schwingen { 171*28745db9SStefan Roese .mfr_id = (u16)SST_MANUFACT, 17281b20cccSMichael Schwingen .dev_id = SST39LF020, 17381b20cccSMichael Schwingen .name = "SST 39LF020", 17481b20cccSMichael Schwingen .uaddr = { 17581b20cccSMichael Schwingen [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */ 17681b20cccSMichael Schwingen }, 17781b20cccSMichael Schwingen .DevSize = SIZE_256KiB, 17881b20cccSMichael Schwingen .CmdSet = P_ID_AMD_STD, 17981b20cccSMichael Schwingen .NumEraseRegions= 1, 18081b20cccSMichael Schwingen .regions = { 18181b20cccSMichael Schwingen ERASEINFO(0x01000,64), 18281b20cccSMichael Schwingen } 18381b20cccSMichael Schwingen }, 18481b20cccSMichael Schwingen #endif 1856d0f6bcfSJean-Christophe PLAGNIOL-VILLARD #ifdef CONFIG_SYS_FLASH_LEGACY_512Kx8 18681b20cccSMichael Schwingen { 187*28745db9SStefan Roese .mfr_id = (u16)AMD_MANUFACT, 18881b20cccSMichael Schwingen .dev_id = AM29LV040B, 18981b20cccSMichael Schwingen .name = "AMD AM29LV040B", 19081b20cccSMichael Schwingen .uaddr = { 19181b20cccSMichael Schwingen [0] = MTD_UADDR_0x0555_0x02AA /* x8 */ 19281b20cccSMichael Schwingen }, 19381b20cccSMichael Schwingen .DevSize = SIZE_512KiB, 19481b20cccSMichael Schwingen .CmdSet = P_ID_AMD_STD, 19581b20cccSMichael Schwingen .NumEraseRegions= 1, 19681b20cccSMichael Schwingen .regions = { 19781b20cccSMichael Schwingen ERASEINFO(0x10000,8), 19881b20cccSMichael Schwingen } 19981b20cccSMichael Schwingen }, 20081b20cccSMichael Schwingen { 201*28745db9SStefan Roese .mfr_id = (u16)SST_MANUFACT, 20281b20cccSMichael Schwingen .dev_id = SST39LF040, 20381b20cccSMichael Schwingen .name = "SST 39LF040", 20481b20cccSMichael Schwingen .uaddr = { 20581b20cccSMichael Schwingen [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */ 20681b20cccSMichael Schwingen }, 20781b20cccSMichael Schwingen .DevSize = SIZE_512KiB, 20881b20cccSMichael Schwingen .CmdSet = P_ID_AMD_STD, 20981b20cccSMichael Schwingen .NumEraseRegions= 1, 21081b20cccSMichael Schwingen .regions = { 21181b20cccSMichael Schwingen ERASEINFO(0x01000,128), 21281b20cccSMichael Schwingen } 21381b20cccSMichael Schwingen }, 21494f9279fSNiklaus Giger { 215*28745db9SStefan Roese .mfr_id = (u16)STM_MANUFACT, 21694f9279fSNiklaus Giger .dev_id = STM_ID_M29W040B, 21794f9279fSNiklaus Giger .name = "ST Micro M29W040B", 21894f9279fSNiklaus Giger .uaddr = { 21994f9279fSNiklaus Giger [0] = MTD_UADDR_0x0555_0x02AA /* x8 */ 22094f9279fSNiklaus Giger }, 22194f9279fSNiklaus Giger .DevSize = SIZE_512KiB, 22294f9279fSNiklaus Giger .CmdSet = P_ID_AMD_STD, 22394f9279fSNiklaus Giger .NumEraseRegions= 1, 22494f9279fSNiklaus Giger .regions = { 22594f9279fSNiklaus Giger ERASEINFO(0x10000,8), 22694f9279fSNiklaus Giger } 22794f9279fSNiklaus Giger }, 22881b20cccSMichael Schwingen #endif 2296d0f6bcfSJean-Christophe PLAGNIOL-VILLARD #ifdef CONFIG_SYS_FLASH_LEGACY_512Kx16 23090447ecbSTor Krill { 231*28745db9SStefan Roese .mfr_id = (u16)AMD_MANUFACT, 23290447ecbSTor Krill .dev_id = AM29LV400BB, 23390447ecbSTor Krill .name = "AMD AM29LV400BB", 23490447ecbSTor Krill .uaddr = { 23590447ecbSTor Krill [1] = MTD_UADDR_0x0555_0x02AA /* x16 */ 23690447ecbSTor Krill }, 23790447ecbSTor Krill .DevSize = SIZE_512KiB, 23890447ecbSTor Krill .CmdSet = CFI_CMDSET_AMD_LEGACY, 23990447ecbSTor Krill .NumEraseRegions= 4, 24090447ecbSTor Krill .regions = { 24190447ecbSTor Krill ERASEINFO(0x04000,1), 24290447ecbSTor Krill ERASEINFO(0x02000,2), 24390447ecbSTor Krill ERASEINFO(0x08000,1), 24490447ecbSTor Krill ERASEINFO(0x10000,7), 24590447ecbSTor Krill } 24690447ecbSTor Krill }, 2477949839eSGuennadi Liakhovetski { 248*28745db9SStefan Roese .mfr_id = (u16)AMD_MANUFACT, 2497949839eSGuennadi Liakhovetski .dev_id = AM29LV800BB, 2507949839eSGuennadi Liakhovetski .name = "AMD AM29LV800BB", 2517949839eSGuennadi Liakhovetski .uaddr = { 2527949839eSGuennadi Liakhovetski [1] = MTD_UADDR_0x0555_0x02AA /* x16 */ 2537949839eSGuennadi Liakhovetski }, 2547949839eSGuennadi Liakhovetski .DevSize = SIZE_1MiB, 2557949839eSGuennadi Liakhovetski .CmdSet = CFI_CMDSET_AMD_LEGACY, 2567949839eSGuennadi Liakhovetski .NumEraseRegions= 4, 2577949839eSGuennadi Liakhovetski .regions = { 2587949839eSGuennadi Liakhovetski ERASEINFO(0x04000, 1), 2597949839eSGuennadi Liakhovetski ERASEINFO(0x02000, 2), 2607949839eSGuennadi Liakhovetski ERASEINFO(0x08000, 1), 2617949839eSGuennadi Liakhovetski ERASEINFO(0x10000, 15), 2627949839eSGuennadi Liakhovetski } 2637949839eSGuennadi Liakhovetski }, 26490447ecbSTor Krill #endif 26581b20cccSMichael Schwingen }; 26681b20cccSMichael Schwingen 26781b20cccSMichael Schwingen static inline void fill_info(flash_info_t *info, const struct amd_flash_info *jedec_entry, ulong base) 26881b20cccSMichael Schwingen { 26981b20cccSMichael Schwingen int i,j; 27081b20cccSMichael Schwingen int sect_cnt; 27181b20cccSMichael Schwingen int size_ratio; 27281b20cccSMichael Schwingen int total_size; 27381b20cccSMichael Schwingen enum uaddr uaddr_idx; 27481b20cccSMichael Schwingen 27581b20cccSMichael Schwingen size_ratio = info->portwidth / info->chipwidth; 27681b20cccSMichael Schwingen 27781b20cccSMichael Schwingen debug("Found JEDEC Flash: %s\n", jedec_entry->name); 27881b20cccSMichael Schwingen info->vendor = jedec_entry->CmdSet; 27981b20cccSMichael Schwingen /* Todo: do we need device-specific timeouts? */ 28081b20cccSMichael Schwingen info->erase_blk_tout = 30000; 28181b20cccSMichael Schwingen info->buffer_write_tout = 1000; 28281b20cccSMichael Schwingen info->write_tout = 100; 28381b20cccSMichael Schwingen info->name = jedec_entry->name; 28481b20cccSMichael Schwingen 28581b20cccSMichael Schwingen /* copy unlock addresses from device table to CFI info struct. This 28681b20cccSMichael Schwingen is just here because the addresses are in the table anyway - if 28781b20cccSMichael Schwingen the flash is not detected due to wrong unlock addresses, 28881b20cccSMichael Schwingen flash_detect_legacy would have to try all of them before we even 28981b20cccSMichael Schwingen get here. */ 29081b20cccSMichael Schwingen switch(info->chipwidth) { 29181b20cccSMichael Schwingen case FLASH_CFI_8BIT: 29281b20cccSMichael Schwingen uaddr_idx = jedec_entry->uaddr[0]; 29381b20cccSMichael Schwingen break; 29481b20cccSMichael Schwingen case FLASH_CFI_16BIT: 29581b20cccSMichael Schwingen uaddr_idx = jedec_entry->uaddr[1]; 29681b20cccSMichael Schwingen break; 29781b20cccSMichael Schwingen case FLASH_CFI_32BIT: 29881b20cccSMichael Schwingen uaddr_idx = jedec_entry->uaddr[2]; 29981b20cccSMichael Schwingen break; 30081b20cccSMichael Schwingen default: 30181b20cccSMichael Schwingen uaddr_idx = MTD_UADDR_NOT_SUPPORTED; 30281b20cccSMichael Schwingen break; 30381b20cccSMichael Schwingen } 30481b20cccSMichael Schwingen 30581b20cccSMichael Schwingen debug("unlock address index %d\n", uaddr_idx); 30681b20cccSMichael Schwingen info->addr_unlock1 = unlock_addrs[uaddr_idx].addr1; 30781b20cccSMichael Schwingen info->addr_unlock2 = unlock_addrs[uaddr_idx].addr2; 30881b20cccSMichael Schwingen debug("unlock addresses are 0x%x/0x%x\n", info->addr_unlock1, info->addr_unlock2); 30981b20cccSMichael Schwingen 31081b20cccSMichael Schwingen sect_cnt = 0; 31181b20cccSMichael Schwingen total_size = 0; 31281b20cccSMichael Schwingen for (i = 0; i < jedec_entry->NumEraseRegions; i++) { 31381b20cccSMichael Schwingen ulong erase_region_size = jedec_entry->regions[i] >> 8; 31481b20cccSMichael Schwingen ulong erase_region_count = (jedec_entry->regions[i] & 0xff) + 1; 31581b20cccSMichael Schwingen 31681b20cccSMichael Schwingen total_size += erase_region_size * erase_region_count; 31781b20cccSMichael Schwingen debug ("erase_region_count = %d erase_region_size = %d\n", 31881b20cccSMichael Schwingen erase_region_count, erase_region_size); 31981b20cccSMichael Schwingen for (j = 0; j < erase_region_count; j++) { 3206d0f6bcfSJean-Christophe PLAGNIOL-VILLARD if (sect_cnt >= CONFIG_SYS_MAX_FLASH_SECT) { 32181b20cccSMichael Schwingen printf("ERROR: too many flash sectors\n"); 32281b20cccSMichael Schwingen break; 32381b20cccSMichael Schwingen } 32481b20cccSMichael Schwingen info->start[sect_cnt] = base; 32581b20cccSMichael Schwingen base += (erase_region_size * size_ratio); 32681b20cccSMichael Schwingen sect_cnt++; 32781b20cccSMichael Schwingen } 32881b20cccSMichael Schwingen } 32981b20cccSMichael Schwingen info->sector_count = sect_cnt; 33081b20cccSMichael Schwingen info->size = total_size * size_ratio; 33181b20cccSMichael Schwingen } 33281b20cccSMichael Schwingen 33381b20cccSMichael Schwingen /*----------------------------------------------------------------------- 33481b20cccSMichael Schwingen * match jedec ids against table. If a match is found, fill flash_info entry 33581b20cccSMichael Schwingen */ 33681b20cccSMichael Schwingen int jedec_flash_match(flash_info_t *info, ulong base) 33781b20cccSMichael Schwingen { 33881b20cccSMichael Schwingen int ret = 0; 33981b20cccSMichael Schwingen int i; 34081b20cccSMichael Schwingen ulong mask = 0xFFFF; 34181b20cccSMichael Schwingen if (info->chipwidth == 1) 34281b20cccSMichael Schwingen mask = 0xFF; 34381b20cccSMichael Schwingen 34481b20cccSMichael Schwingen for (i = 0; i < ARRAY_SIZE(jedec_table); i++) { 34581b20cccSMichael Schwingen if ((jedec_table[i].mfr_id & mask) == (info->manufacturer_id & mask) && 34681b20cccSMichael Schwingen (jedec_table[i].dev_id & mask) == (info->device_id & mask)) { 34781b20cccSMichael Schwingen fill_info(info, &jedec_table[i], base); 34881b20cccSMichael Schwingen ret = 1; 34981b20cccSMichael Schwingen break; 35081b20cccSMichael Schwingen } 35181b20cccSMichael Schwingen } 35281b20cccSMichael Schwingen return ret; 35381b20cccSMichael Schwingen } 354