| /* |
| * SPI flash probing |
| * |
| * Copyright (C) 2008 Atmel Corporation |
| * Copyright (C) 2010 Reinhard Meyer, EMK Elektronik |
| * Copyright (C) 2013 Jagannadha Sutradharudu Teki, Xilinx Inc. |
| * |
| * Licensed under the GPL-2 or later. |
| */ |
| |
| #include <common.h> |
| #include <fdtdec.h> |
| #include <malloc.h> |
| #include <spi.h> |
| #include <spi_flash.h> |
| |
| #include "spi_flash_internal.h" |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| /* |
| * struct spi_flash_params - SPI/QSPI flash device params structure |
| * |
| * @name: Device name ([MANUFLETTER][DEVTYPE][DENSITY][EXTRAINFO]) |
| * @jedec: Device jedec ID (0x[1byte_manuf_id][2byte_dev_id]) |
| * @ext_jedec: Device ext_jedec ID |
| * @sector_size: Sector size of this device |
| * @nr_sectors: No.of sectors on this device |
| * @flags: Importent param, for flash specific behaviour |
| */ |
| struct spi_flash_params { |
| const char *name; |
| u32 jedec; |
| u16 ext_jedec; |
| u32 sector_size; |
| u32 nr_sectors; |
| u16 flags; |
| }; |
| |
| static const struct spi_flash_params spi_flash_params_table[] = { |
| #ifdef CONFIG_SPI_FLASH_ATMEL /* ATMEL */ |
| {"AT45DB011D", 0x1f2200, 0x0, 64 * 1024, 4, SECT_4K}, |
| {"AT45DB021D", 0x1f2300, 0x0, 64 * 1024, 8, SECT_4K}, |
| {"AT45DB041D", 0x1f2400, 0x0, 64 * 1024, 8, SECT_4K}, |
| {"AT45DB081D", 0x1f2500, 0x0, 64 * 1024, 16, SECT_4K}, |
| {"AT45DB161D", 0x1f2600, 0x0, 64 * 1024, 32, SECT_4K}, |
| {"AT45DB321D", 0x1f2700, 0x0, 64 * 1024, 64, SECT_4K}, |
| {"AT45DB641D", 0x1f2800, 0x0, 64 * 1024, 128, SECT_4K}, |
| #endif |
| #ifdef CONFIG_SPI_FLASH_EON /* EON */ |
| {"EN25Q32B", 0x1c3016, 0x0, 64 * 1024, 64, 0}, |
| {"EN25Q128B", 0x1c3018, 0x0, 64 * 1024, 256, 0}, |
| #endif |
| #ifdef CONFIG_SPI_FLASH_GIGADEVICE /* GIGADEVICE */ |
| {"GD25Q64B", 0xc84017, 0x0, 64 * 1024, 128, SECT_4K}, |
| {"GD25LQ32", 0xc86016, 0x0, 64 * 1024, 64, SECT_4K}, |
| #endif |
| #ifdef CONFIG_SPI_FLASH_MACRONIX /* MACRONIX */ |
| {"MX25L4005", 0xc22013, 0x0, 64 * 1024, 8, 0}, |
| {"MX25L8005", 0xc22014, 0x0, 64 * 1024, 16, 0}, |
| {"MX25L1605D", 0xc22015, 0x0, 64 * 1024, 32, 0}, |
| {"MX25L3205D", 0xc22016, 0x0, 64 * 1024, 64, 0}, |
| {"MX25L6405D", 0xc22017, 0x0, 64 * 1024, 128, 0}, |
| {"MX25L12805", 0xc22018, 0x0, 64 * 1024, 256, 0}, |
| {"MX25L12855E", 0xc22618, 0x0, 64 * 1024, 256, 0}, |
| #endif |
| #ifdef CONFIG_SPI_FLASH_SPANSION /* SPANSION */ |
| {"S25FL008A", 0x010213, 0x0, 64 * 1024, 16, 0}, |
| {"S25FL016A", 0x010214, 0x0, 64 * 1024, 32, 0}, |
| {"S25FL032A", 0x010215, 0x0, 64 * 1024, 64, 0}, |
| {"S25FL064A", 0x010216, 0x0, 64 * 1024, 128, 0}, |
| {"S25FL128P_256K", 0x012018, 0x0300, 256 * 1024, 64, 0}, |
| {"S25FL128P_64K", 0x012018, 0x0301, 64 * 1024, 256, 0}, |
| {"S25FL032P", 0x010215, 0x4d00, 64 * 1024, 64, 0}, |
| {"S25FL064P", 0x010216, 0x4d00, 64 * 1024, 128, 0}, |
| {"S25FL128S_64K", 0x012018, 0x4d01, 64 * 1024, 256, 0}, |
| {"S25FL256S_64K", 0x010219, 0x4d01, 64 * 1024, 512, 0}, |
| {"S25FL512S_64K", 0x010220, 0x4d01, 64 * 1024, 1024, 0}, |
| #endif |
| #ifdef CONFIG_SPI_FLASH_STMICRO /* STMICRO */ |
| {"M25P10", 0x202011, 0x0, 32 * 1024, 4, 0}, |
| {"M25P20", 0x202012, 0x0, 64 * 1024, 4, 0}, |
| {"M25P40", 0x202013, 0x0, 64 * 1024, 8, 0}, |
| {"M25P80", 0x202014, 0x0, 64 * 1024, 16, 0}, |
| {"M25P16", 0x202015, 0x0, 64 * 1024, 32, 0}, |
| {"M25P32", 0x202016, 0x0, 64 * 1024, 64, 0}, |
| {"M25P64", 0x202017, 0x0, 64 * 1024, 128, 0}, |
| {"M25P128", 0x202018, 0x0, 256 * 1024, 64, 0}, |
| {"N25Q32", 0x20ba16, 0x0, 64 * 1024, 64, SECT_4K}, |
| {"N25Q32A", 0x20bb16, 0x0, 64 * 1024, 64, SECT_4K}, |
| {"N25Q64", 0x20ba17, 0x0, 64 * 1024, 128, SECT_4K}, |
| {"N25Q64A", 0x20bb17, 0x0, 64 * 1024, 128, SECT_4K}, |
| {"N25Q128", 0x20ba18, 0x0, 64 * 1024, 256, SECT_4K}, |
| {"N25Q128A", 0x20bb18, 0x0, 64 * 1024, 256, SECT_4K}, |
| {"N25Q256", 0x20ba19, 0x0, 64 * 1024, 512, SECT_4K}, |
| {"N25Q256A", 0x20bb19, 0x0, 64 * 1024, 512, SECT_4K}, |
| {"N25Q512", 0x20ba20, 0x0, 64 * 1024, 1024, E_FSR | SECT_4K}, |
| {"N25Q512A", 0x20bb20, 0x0, 64 * 1024, 1024, E_FSR | SECT_4K}, |
| {"N25Q1024", 0x20ba21, 0x0, 64 * 1024, 2048, E_FSR | SECT_4K}, |
| {"N25Q1024A", 0x20bb21, 0x0, 64 * 1024, 2048, E_FSR | SECT_4K}, |
| #endif |
| #ifdef CONFIG_SPI_FLASH_SST /* SST */ |
| {"SST25VF040B", 0xbf258d, 0x0, 64 * 1024, 8, SECT_4K | SST_WP}, |
| {"SST25VF080B", 0xbf258e, 0x0, 64 * 1024, 16, SECT_4K | SST_WP}, |
| {"SST25VF016B", 0xbf2541, 0x0, 64 * 1024, 32, SECT_4K | SST_WP}, |
| {"SST25VF032B", 0xbf254a, 0x0, 64 * 1024, 64, SECT_4K | SST_WP}, |
| {"SST25VF064C", 0xbf254b, 0x0, 64 * 1024, 128, SECT_4K}, |
| {"SST25WF512", 0xbf2501, 0x0, 64 * 1024, 1, SECT_4K | SST_WP}, |
| {"SST25WF010", 0xbf2502, 0x0, 64 * 1024, 2, SECT_4K | SST_WP}, |
| {"SST25WF020", 0xbf2503, 0x0, 64 * 1024, 4, SECT_4K | SST_WP}, |
| {"SST25WF040", 0xbf2504, 0x0, 64 * 1024, 8, SECT_4K | SST_WP}, |
| {"SST25WF080", 0xbf2505, 0x0, 64 * 1024, 16, SECT_4K | SST_WP}, |
| #endif |
| #ifdef CONFIG_SPI_FLASH_WINBOND /* WINBOND */ |
| {"W25P80", 0xef2014, 0x0, 64 * 1024, 16, 0}, |
| {"W25P16", 0xef2015, 0x0, 64 * 1024, 32, 0}, |
| {"W25P32", 0xef2016, 0x0, 64 * 1024, 64, 0}, |
| {"W25X40", 0xef3013, 0x0, 64 * 1024, 8, SECT_4K}, |
| {"W25X16", 0xef3015, 0x0, 64 * 1024, 32, SECT_4K}, |
| {"W25X32", 0xef3016, 0x0, 64 * 1024, 64, SECT_4K}, |
| {"W25X64", 0xef3017, 0x0, 64 * 1024, 128, SECT_4K}, |
| {"W25Q80BL", 0xef4014, 0x0, 64 * 1024, 16, SECT_4K}, |
| {"W25Q16CL", 0xef4015, 0x0, 64 * 1024, 32, SECT_4K}, |
| {"W25Q32BV", 0xef4016, 0x0, 64 * 1024, 64, SECT_4K}, |
| {"W25Q64CV", 0xef4017, 0x0, 64 * 1024, 128, SECT_4K}, |
| {"W25Q128BV", 0xef4018, 0x0, 64 * 1024, 256, SECT_4K}, |
| {"W25Q256", 0xef4019, 0x0, 64 * 1024, 512, SECT_4K}, |
| {"W25Q80BW", 0xef5014, 0x0, 64 * 1024, 16, SECT_4K}, |
| {"W25Q16DW", 0xef6015, 0x0, 64 * 1024, 32, SECT_4K}, |
| {"W25Q32DW", 0xef6016, 0x0, 64 * 1024, 64, SECT_4K}, |
| {"W25Q64DW", 0xef6017, 0x0, 64 * 1024, 128, SECT_4K}, |
| {"W25Q128FW", 0xef6018, 0x0, 64 * 1024, 256, SECT_4K}, |
| #endif |
| /* |
| * Note: |
| * Below paired flash devices has similar spi_flash_params params. |
| * (S25FL129P_64K, S25FL128S_64K) |
| * (W25Q80BL, W25Q80BV) |
| * (W25Q16CL, W25Q16DV) |
| * (W25Q32BV, W25Q32FV_SPI) |
| * (W25Q64CV, W25Q64FV_SPI) |
| * (W25Q128BV, W25Q128FV_SPI) |
| * (W25Q32DW, W25Q32FV_QPI) |
| * (W25Q64DW, W25Q64FV_QPI) |
| * (W25Q128FW, W25Q128FV_QPI) |
| */ |
| }; |
| |
| struct spi_flash *spi_flash_validate_ids(struct spi_slave *spi, u8 *idcode) |
| { |
| const struct spi_flash_params *params; |
| struct spi_flash *flash; |
| int i; |
| u16 jedec = idcode[1] << 8 | idcode[2]; |
| u16 ext_jedec = idcode[3] << 8 | idcode[4]; |
| |
| /* Get the flash id (jedec = manuf_id + dev_id, ext_jedec) */ |
| for (i = 0; i < ARRAY_SIZE(spi_flash_params_table); i++) { |
| params = &spi_flash_params_table[i]; |
| if ((params->jedec >> 16) == idcode[0]) { |
| if ((params->jedec & 0xFFFF) == jedec) { |
| if (params->ext_jedec == 0) |
| break; |
| else if (params->ext_jedec == ext_jedec) |
| break; |
| } |
| } |
| } |
| |
| if (i == ARRAY_SIZE(spi_flash_params_table)) { |
| printf("SF: Unsupported flash IDs: "); |
| printf("manuf %02x, jedec %04x, ext_jedec %04x\n", |
| idcode[0], jedec, ext_jedec); |
| return NULL; |
| } |
| |
| flash = malloc(sizeof(*flash)); |
| if (!flash) { |
| debug("SF: Failed to allocate spi_flash\n"); |
| return NULL; |
| } |
| memset(flash, '\0', sizeof(*flash)); |
| |
| flash->spi = spi; |
| flash->name = params->name; |
| |
| /* Assign spi_flash ops */ |
| flash->write = spi_flash_cmd_write_multi; |
| #ifdef CONFIG_SPI_FLASH_SST |
| if (params->flags & SST_WP) |
| flash->write = sst_write_wp; |
| #endif |
| flash->erase = spi_flash_cmd_erase; |
| flash->read = spi_flash_cmd_read_fast; |
| |
| /* Compute the flash size */ |
| flash->page_size = 256; |
| flash->sector_size = params->sector_size; |
| flash->size = flash->sector_size * params->nr_sectors; |
| |
| /* Compute erase sector and command */ |
| if (params->flags & SECT_4K) { |
| flash->erase_cmd = CMD_ERASE_4K; |
| flash->erase_size = 4096; |
| } else if (params->flags & SECT_32K) { |
| flash->erase_cmd = CMD_ERASE_32K; |
| flash->erase_size = 32768; |
| } else { |
| flash->erase_cmd = CMD_ERASE_64K; |
| flash->erase_size = flash->sector_size; |
| } |
| |
| /* Poll cmd seclection */ |
| flash->poll_cmd = CMD_READ_STATUS; |
| #ifdef CONFIG_SPI_FLASH_STMICRO |
| if (params->flags & E_FSR) |
| flash->poll_cmd = CMD_FLAG_STATUS; |
| #endif |
| |
| #ifdef CONFIG_SPI_FLASH_BAR |
| /* Configure the BAR - discover bank cmds and read current bank */ |
| u8 curr_bank = 0; |
| if (flash->size > SPI_FLASH_16MB_BOUN) { |
| flash->bank_read_cmd = (idcode[0] == 0x01) ? |
| CMD_BANKADDR_BRRD : CMD_EXTNADDR_RDEAR; |
| flash->bank_write_cmd = (idcode[0] == 0x01) ? |
| CMD_BANKADDR_BRWR : CMD_EXTNADDR_WREAR; |
| |
| if (spi_flash_read_common(flash, &flash->bank_read_cmd, 1, |
| &curr_bank, 1)) { |
| debug("SF: fail to read bank addr register\n"); |
| return NULL; |
| } |
| flash->bank_curr = curr_bank; |
| } else { |
| flash->bank_curr = curr_bank; |
| } |
| #endif |
| |
| /* Flash powers up read-only, so clear BP# bits */ |
| #if defined(CONFIG_SPI_FLASH_ATMEL) || \ |
| defined(CONFIG_SPI_FLASH_MACRONIX) || \ |
| defined(CONFIG_SPI_FLASH_SST) |
| spi_flash_cmd_write_status(flash, 0); |
| #endif |
| |
| return flash; |
| } |
| |
| #ifdef CONFIG_OF_CONTROL |
| int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash) |
| { |
| fdt_addr_t addr; |
| fdt_size_t size; |
| int node; |
| |
| /* If there is no node, do nothing */ |
| node = fdtdec_next_compatible(blob, 0, COMPAT_GENERIC_SPI_FLASH); |
| if (node < 0) |
| return 0; |
| |
| addr = fdtdec_get_addr_size(blob, node, "memory-map", &size); |
| if (addr == FDT_ADDR_T_NONE) { |
| debug("%s: Cannot decode address\n", __func__); |
| return 0; |
| } |
| |
| if (flash->size != size) { |
| debug("%s: Memory map must cover entire device\n", __func__); |
| return -1; |
| } |
| flash->memory_map = (void *)addr; |
| |
| return 0; |
| } |
| #endif /* CONFIG_OF_CONTROL */ |
| |
| struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs, |
| unsigned int max_hz, unsigned int spi_mode) |
| { |
| struct spi_slave *spi; |
| struct spi_flash *flash = NULL; |
| u8 idcode[5]; |
| int ret; |
| |
| /* Setup spi_slave */ |
| spi = spi_setup_slave(bus, cs, max_hz, spi_mode); |
| if (!spi) { |
| printf("SF: Failed to set up slave\n"); |
| return NULL; |
| } |
| |
| /* Claim spi bus */ |
| ret = spi_claim_bus(spi); |
| if (ret) { |
| debug("SF: Failed to claim SPI bus: %d\n", ret); |
| goto err_claim_bus; |
| } |
| |
| /* Read the ID codes */ |
| ret = spi_flash_cmd(spi, CMD_READ_ID, idcode, sizeof(idcode)); |
| if (ret) { |
| printf("SF: Failed to get idcodes\n"); |
| goto err_read_id; |
| } |
| |
| #ifdef DEBUG |
| printf("SF: Got idcodes\n"); |
| print_buffer(0, idcode, 1, sizeof(idcode), 0); |
| #endif |
| |
| /* Validate ID's from flash dev table */ |
| flash = spi_flash_validate_ids(spi, idcode); |
| if (!flash) |
| goto err_read_id; |
| |
| #ifdef CONFIG_OF_CONTROL |
| if (spi_flash_decode_fdt(gd->fdt_blob, flash)) { |
| debug("SF: FDT decode error\n"); |
| goto err_read_id; |
| } |
| #endif |
| #ifndef CONFIG_SPL_BUILD |
| printf("SF: Detected %s with page size ", flash->name); |
| print_size(flash->sector_size, ", total "); |
| print_size(flash->size, ""); |
| if (flash->memory_map) |
| printf(", mapped at %p", flash->memory_map); |
| puts("\n"); |
| #endif |
| #ifndef CONFIG_SPI_FLASH_BAR |
| if (flash->size > SPI_FLASH_16MB_BOUN) { |
| puts("SF: Warning - Only lower 16MiB accessible,"); |
| puts(" Full access #define CONFIG_SPI_FLASH_BAR\n"); |
| } |
| #endif |
| |
| /* Release spi bus */ |
| spi_release_bus(spi); |
| |
| return flash; |
| |
| err_read_id: |
| spi_release_bus(spi); |
| err_claim_bus: |
| spi_free_slave(spi); |
| return NULL; |
| } |
| |
| void spi_flash_free(struct spi_flash *flash) |
| { |
| spi_free_slave(flash->spi); |
| free(flash); |
| } |