| /* |
| * 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 <console/console.h> |
| #include <commonlib/helpers.h> |
| #include <spi_flash.h> |
| #include <spi-generic.h> |
| #include <string.h> |
| |
| #include "spi_flash_internal.h" |
| |
| /* EN25*-specific commands */ |
| #define CMD_EN25_WREN 0x06 /* Write Enable */ |
| #define CMD_EN25_WRDI 0x04 /* Write Disable */ |
| #define CMD_EN25_RDSR 0x05 /* Read Status Register */ |
| #define CMD_EN25_WRSR 0x01 /* Write Status Register */ |
| #define CMD_EN25_READ 0x03 /* Read Data Bytes */ |
| #define CMD_EN25_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */ |
| #define CMD_EN25_PP 0x02 /* Page Program */ |
| #define CMD_EN25_SE 0x20 /* Sector Erase */ |
| #define CMD_EN25_BE 0xd8 /* Block Erase */ |
| #define CMD_EN25_DP 0xb9 /* Deep Power-down */ |
| #define CMD_EN25_RES 0xab /* Release from DP, and Read Signature */ |
| |
| #define EON_ID_EN25B80 0x2014 |
| #define EON_ID_EN25B16 0x2015 |
| #define EON_ID_EN25B32 0x2016 |
| #define EON_ID_EN25B64 0x2017 |
| #define EON_ID_EN25F80 0x3114 |
| #define EON_ID_EN25F16 0x3115 |
| #define EON_ID_EN25F32 0x3116 |
| #define EON_ID_EN25F64 0x3117 |
| #define EON_ID_EN25Q80 0x3014 |
| #define EON_ID_EN25Q16 0x3015 /* Same as EN25D16 */ |
| #define EON_ID_EN25Q32 0x3016 /* Same as EN25Q32A and EN25Q32B */ |
| #define EON_ID_EN25Q64 0x3017 |
| #define EON_ID_EN25Q128 0x3018 |
| #define EON_ID_EN25QH16 0x7015 |
| #define EON_ID_EN25QH32 0x7016 |
| #define EON_ID_EN25QH64 0x7017 |
| #define EON_ID_EN25QH128 0x7018 |
| #define EON_ID_EN25S80 0x3814 |
| #define EON_ID_EN25S16 0x3815 |
| #define EON_ID_EN25S32 0x3816 |
| #define EON_ID_EN25S64 0x3817 |
| |
| struct eon_spi_flash_params { |
| u16 id; |
| u16 page_size; |
| u16 pages_per_sector; |
| u16 sectors_per_block; |
| u16 nr_sectors; |
| const char *name; |
| }; |
| |
| static const struct eon_spi_flash_params eon_spi_flash_table[] = { |
| { |
| .id = EON_ID_EN25B80, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 256, |
| .name = "EN25B80", |
| }, |
| { |
| .id = EON_ID_EN25B16, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 512, |
| .name = "EN25B16", |
| }, |
| { |
| .id = EON_ID_EN25B32, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 1024, |
| .name = "EN25B32", |
| }, |
| { |
| .id = EON_ID_EN25B64, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 2048, |
| .name = "EN25B64", |
| }, |
| { |
| .id = EON_ID_EN25F80, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 256, |
| .name = "EN25F80", |
| }, |
| { |
| .id = EON_ID_EN25F16, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 512, |
| .name = "EN25F16", |
| }, |
| { |
| .id = EON_ID_EN25F32, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 1024, |
| .name = "EN25F32", |
| }, |
| { |
| .id = EON_ID_EN25F64, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 2048, |
| .name = "EN25F64", |
| }, |
| { |
| .id = EON_ID_EN25Q80, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 256, |
| .name = "EN25Q80(A)", |
| }, |
| { |
| .id = EON_ID_EN25Q16, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 512, |
| .name = "EN25Q16(D16)", |
| }, |
| { |
| .id = EON_ID_EN25Q32, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 1024, |
| .name = "EN25Q32(A/B)", |
| }, |
| { |
| .id = EON_ID_EN25Q64, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 2048, |
| .name = "EN25Q64", |
| }, |
| { |
| .id = EON_ID_EN25Q128, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 4096, |
| .name = "EN25Q128", |
| }, |
| { |
| .id = EON_ID_EN25QH16, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 512, |
| .name = "EN25QH16", |
| }, |
| { |
| .id = EON_ID_EN25QH32, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 1024, |
| .name = "EN25QH32", |
| }, |
| { |
| .id = EON_ID_EN25QH64, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 2048, |
| .name = "EN25QH64", |
| }, |
| { |
| .id = EON_ID_EN25QH128, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 4096, |
| .name = "EN25QH128", |
| }, |
| { |
| .id = EON_ID_EN25S80, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 256, |
| .name = "EN25S80", |
| }, |
| { |
| .id = EON_ID_EN25S16, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 512, |
| .name = "EN25S16", |
| }, |
| { |
| .id = EON_ID_EN25S32, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 1024, |
| .name = "EN25S32", |
| }, |
| { |
| .id = EON_ID_EN25S64, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_sectors = 2048, |
| .name = "EN25S64", |
| }, |
| }; |
| |
| static const struct spi_flash_ops spi_flash_ops = { |
| .write = spi_flash_cmd_write_page_program, |
| .erase = spi_flash_cmd_erase, |
| .status = spi_flash_cmd_status, |
| }; |
| |
| int spi_flash_probe_eon(const struct spi_slave *spi, u8 *idcode, |
| struct spi_flash *flash) |
| { |
| const struct eon_spi_flash_params *params; |
| unsigned int i; |
| |
| for (i = 0; i < ARRAY_SIZE(eon_spi_flash_table); ++i) { |
| params = &eon_spi_flash_table[i]; |
| if (params->id == ((idcode[1] << 8) | idcode[2])) |
| break; |
| } |
| |
| if (i == ARRAY_SIZE(eon_spi_flash_table)) { |
| printk(BIOS_WARNING, "SF: Unsupported EON ID %#02x%02x\n", |
| idcode[1], idcode[2]); |
| 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_EN25_SE; |
| flash->status_cmd = CMD_EN25_RDSR; |
| flash->pp_cmd = CMD_EN25_PP; |
| flash->wren_cmd = CMD_EN25_WREN; |
| |
| flash->ops = &spi_flash_ops; |
| |
| return 0; |
| } |