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/*
* 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 = {
.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_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;
}
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