/* * This file is part of the coreboot project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include #include "spi_flash_internal.h" /* S25FLxx-specific commands */ #define CMD_S25FLXX_READ 0x03 /* Read Data Bytes */ #define CMD_S25FLXX_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */ #define CMD_S25FLXX_READID 0x90 /* Read Manufacture ID and Device ID */ #define CMD_S25FLXX_WREN 0x06 /* Write Enable */ #define CMD_S25FLXX_WRDI 0x04 /* Write Disable */ #define CMD_S25FLXX_RDSR 0x05 /* Read Status Register */ #define CMD_S25FLXX_WRSR 0x01 /* Write Status Register */ #define CMD_S25FLXX_PP 0x02 /* Page Program */ #define CMD_S25FLXX_SE 0xd8 /* Sector Erase */ #define CMD_S25FLXX_BE 0xc7 /* Bulk Erase */ #define CMD_S25FLXX_DP 0xb9 /* Deep Power-down */ #define CMD_S25FLXX_RES 0xab /* Release from DP, and Read Signature */ #define SPSN_MANUFACTURER_ID_S25FL_K 0x01 #define SPSN_ID_S25FL008A 0x0213 #define SPSN_ID_S25FL016A 0x0214 #define SPSN_ID_S25FL032A 0x0215 #define SPSN_ID_S25FL064A 0x0216 #define SPSN_ID_S25FL128S 0x0219 #define SPSN_ID_S25FL128P 0x2018 #define SPSN_ID_S25FL208K 0x4014 #define SPSN_ID_S25FL116K 0x4015 #define SPSN_ID_S25FL132K 0x4016 #define SPSN_ID_S25FL164K 0x4017 #define SPSN_EXT_ID_S25FL128P_256KB 0x0300 #define SPSN_EXT_ID_S25FL128P_64KB 0x0301 #define SPSN_EXT_ID_S25FL032P 0x4d00 #define SPSN_EXT_ID_S25FLXXS_64KB 0x4d01 struct spansion_spi_flash_params { u8 idcode0; u16 idcode1; u16 idcode2; int (*identify) (const struct spansion_spi_flash_params *params, u8 *idcode); u16 page_size; u16 pages_per_sector; u16 nr_sectors; const char *name; }; /* * returns non-zero if the given idcode matches the ID of the chip. this is for * chips which use 2nd, 3rd, 4th, and 5th byte. */ static int identify_2345(const struct spansion_spi_flash_params *params, u8 *idcode) { u16 jedec = idcode[1] << 8 | idcode[2]; u16 ext_jedec = idcode[3] << 8 | idcode[4]; return (params->idcode1 == jedec) && (params->idcode2 == ext_jedec); } /* * returns non-zero if the given idcode matches the ID of the chip. this is for * chips which use 1st, 2nd, and 3rd byte. */ static int identify_123(const struct spansion_spi_flash_params *params, u8 *idcode) { u16 jedec = idcode[1] << 8 | idcode[2]; return (params->idcode0 == idcode[0]) && (params->idcode1 == jedec); } static const struct spansion_spi_flash_params spansion_spi_flash_table[] = { { .idcode0 = 0, .idcode1 = SPSN_ID_S25FL008A, .idcode2 = 0, .identify = identify_2345, .page_size = 256, .pages_per_sector = 256, .nr_sectors = 16, .name = "S25FL008A", }, { .idcode0 = 0, .idcode1 = SPSN_ID_S25FL016A, .idcode2 = 0, .identify = identify_2345, .page_size = 256, .pages_per_sector = 256, .nr_sectors = 32, .name = "S25FL016A", }, { .idcode0 = 0, .idcode1 = SPSN_ID_S25FL032A, .idcode2 = 0, .identify = identify_2345, .page_size = 256, .pages_per_sector = 256, .nr_sectors = 64, .name = "S25FL032A", }, { .idcode0 = 0, .idcode1 = SPSN_ID_S25FL064A, .idcode2 = 0, .identify = identify_2345, .page_size = 256, .pages_per_sector = 256, .nr_sectors = 128, .name = "S25FL064A", }, { .idcode0 = 0, .idcode1 = SPSN_ID_S25FL128P, .idcode2 = SPSN_EXT_ID_S25FL128P_64KB, .identify = identify_2345, .page_size = 256, .pages_per_sector = 256, .nr_sectors = 256, .name = "S25FL128P_64K", }, { .idcode0 = 0, .idcode1 = SPSN_ID_S25FL128P, .idcode2 = SPSN_EXT_ID_S25FL128P_256KB, .identify = identify_2345, .page_size = 256, .pages_per_sector = 1024, .nr_sectors = 64, .name = "S25FL128P_256K", }, { .idcode0 = 0, .idcode1 = SPSN_ID_S25FL128S, .idcode2 = SPSN_EXT_ID_S25FLXXS_64KB, .identify = identify_2345, .page_size = 256, .pages_per_sector = 256, .nr_sectors = 512, .name = "S25FL128S_256K", }, { .idcode0 = 0, .idcode1 = SPSN_ID_S25FL032A, .idcode2 = SPSN_EXT_ID_S25FL032P, .identify = identify_2345, .page_size = 256, .pages_per_sector = 256, .nr_sectors = 64, .name = "S25FL032P", }, { .idcode0 = 0, .idcode1 = SPSN_ID_S25FL128P, .idcode2 = SPSN_EXT_ID_S25FLXXS_64KB, .identify = identify_2345, .page_size = 256, .pages_per_sector = 256, .nr_sectors = 256, .name = "S25FS128S", }, { .idcode0 = SPSN_MANUFACTURER_ID_S25FL_K, .idcode1 = SPSN_ID_S25FL208K, .idcode2 = 0, .identify = identify_123, .page_size = 256, .pages_per_sector = 256, .nr_sectors = 16, .name = "S25FL208K", }, { .idcode0 = SPSN_MANUFACTURER_ID_S25FL_K, .idcode1 = SPSN_ID_S25FL116K, .idcode2 = 0, .identify = identify_123, .page_size = 256, .pages_per_sector = 256, .nr_sectors = 32, .name = "S25FL116K_16M", }, { .idcode0 = SPSN_MANUFACTURER_ID_S25FL_K, .idcode1 = SPSN_ID_S25FL132K, .idcode2 = 0, .identify = identify_123, .page_size = 256, .pages_per_sector = 256, .nr_sectors = 64, .name = "S25FL132K", }, { .idcode0 = SPSN_MANUFACTURER_ID_S25FL_K, .idcode1 = SPSN_ID_S25FL164K, .idcode2 = 0, .identify = identify_123, .page_size = 256, .pages_per_sector = 256, .nr_sectors = 128, .name = "S25FL164K", }, }; static const struct spi_flash_ops spi_flash_ops = { .read = spi_flash_cmd_read, .write = spi_flash_cmd_write_page_program, .erase = spi_flash_cmd_erase, .status = spi_flash_cmd_status, }; int spi_flash_probe_spansion(const struct spi_slave *spi, u8 *idcode, struct spi_flash *flash) { const struct spansion_spi_flash_params *params; unsigned int i; for (i = 0; i < ARRAY_SIZE(spansion_spi_flash_table); i++) { params = &spansion_spi_flash_table[i]; if (params->identify(params, idcode)) break; } if (i == ARRAY_SIZE(spansion_spi_flash_table)) { printk(BIOS_WARNING, "SF: Unsupported SPANSION ID %02x %02x %02x %02x %02x\n", idcode[0], idcode[1], idcode[2], idcode[3], idcode[4]); return -1; } memcpy(&flash->spi, spi, sizeof(*spi)); flash->name = params->name; flash->page_size = params->page_size; flash->sector_size = params->page_size * params->pages_per_sector; flash->size = flash->sector_size * params->nr_sectors; flash->erase_cmd = CMD_S25FLXX_SE; flash->status_cmd = CMD_S25FLXX_RDSR; flash->pp_cmd = CMD_S25FLXX_PP; flash->wren_cmd = CMD_S25FLXX_WREN; flash->ops = &spi_flash_ops; return 0; }