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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"
/* M25Pxx-specific commands */
#define CMD_M25PXX_WREN 0x06 /* Write Enable */
#define CMD_M25PXX_WRDI 0x04 /* Write Disable */
#define CMD_M25PXX_RDSR 0x05 /* Read Status Register */
#define CMD_M25PXX_WRSR 0x01 /* Write Status Register */
#define CMD_M25PXX_READ 0x03 /* Read Data Bytes */
#define CMD_M25PXX_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */
#define CMD_M25PXX_PP 0x02 /* Page Program */
#define CMD_M25PXX_SSE 0x20 /* Subsector Erase */
#define CMD_M25PXX_SE 0xd8 /* Sector Erase */
#define CMD_M25PXX_BE 0xc7 /* Bulk Erase */
#define CMD_M25PXX_DP 0xb9 /* Deep Power-down */
#define CMD_M25PXX_RES 0xab /* Release from DP, and Read Signature */
/*
* Device ID = (memory_type << 8) + memory_capacity
*/
#define STM_ID_M25P10 0x2011
#define STM_ID_M25P20 0x2012
#define STM_ID_M25P40 0x2013
#define STM_ID_M25P80 0x2014
#define STM_ID_M25P16 0x2015
#define STM_ID_M25P32 0x2016
#define STM_ID_M25P64 0x2017
#define STM_ID_M25P128 0x2018
#define STM_ID_M25PX80 0x7114
#define STM_ID_M25PX16 0x7115
#define STM_ID_M25PX32 0x7116
#define STM_ID_M25PX64 0x7117
#define STM_ID_M25PE80 0x8014
#define STM_ID_M25PE16 0x8015
#define STM_ID_M25PE32 0x8016
#define STM_ID_M25PE64 0x8017
#define STM_ID_N25Q016__3E 0xba15
#define STM_ID_N25Q032__3E 0xba16
#define STM_ID_N25Q064__3E 0xba17
#define STM_ID_N25Q128__3E 0xba18
#define STM_ID_N25Q256__3E 0xba19
#define STM_ID_N25Q016__1E 0xbb15
#define STM_ID_N25Q032__1E 0xbb16
#define STM_ID_N25Q064__1E 0xbb17
#define STM_ID_N25Q128__1E 0xbb18
#define STM_ID_N25Q256__1E 0xbb19
struct stmicro_spi_flash_params {
u16 device_id;
u8 op_erase;
u16 page_size;
u16 pages_per_sector;
u16 nr_sectors;
const char *name;
};
static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = {
{
.device_id = STM_ID_M25P10,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 128,
.nr_sectors = 4,
.name = "M25P10",
},
{
.device_id = STM_ID_M25P16,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 32,
.name = "M25P16",
},
{
.device_id = STM_ID_M25P20,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 4,
.name = "M25P20",
},
{
.device_id = STM_ID_M25P32,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 64,
.name = "M25P32",
},
{
.device_id = STM_ID_M25P40,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 8,
.name = "M25P40",
},
{
.device_id = STM_ID_M25P64,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 128,
.name = "M25P64",
},
{
.device_id = STM_ID_M25P80,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 16,
.name = "M25P80",
},
{
.device_id = STM_ID_M25P128,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 1024,
.nr_sectors = 64,
.name = "M25P128",
},
{
.device_id = STM_ID_M25PX80,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 16,
.name = "M25PX80",
},
{
.device_id = STM_ID_M25PX16,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 32,
.name = "M25PX16",
},
{
.device_id = STM_ID_M25PX32,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 64,
.name = "M25PX32",
},
{
.device_id = STM_ID_M25PX64,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 128,
.name = "M25PX64",
},
{
.device_id = STM_ID_M25PE80,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 16,
.name = "M25PE80",
},
{
.device_id = STM_ID_M25PE16,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 32,
.name = "M25PE16",
},
{
.device_id = STM_ID_M25PE32,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 64,
.name = "M25PE32",
},
{
.device_id = STM_ID_M25PE64,
.op_erase = CMD_M25PXX_SE,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 128,
.name = "M25PE64",
},
{
.device_id = STM_ID_N25Q016__3E,
.op_erase = CMD_M25PXX_SSE,
.page_size = 256,
.pages_per_sector = 16,
.nr_sectors = 512,
.name = "N25Q016..3E",
},
{
.device_id = STM_ID_N25Q032__3E,
.op_erase = CMD_M25PXX_SSE,
.page_size = 256,
.pages_per_sector = 16,
.nr_sectors = 1024,
.name = "N25Q032..3E",
},
{
.device_id = STM_ID_N25Q064__3E,
.op_erase = CMD_M25PXX_SSE,
.page_size = 256,
.pages_per_sector = 16,
.nr_sectors = 2048,
.name = "N25Q064..3E",
},
{
.device_id = STM_ID_N25Q128__3E,
.op_erase = CMD_M25PXX_SSE,
.page_size = 256,
.pages_per_sector = 16,
.nr_sectors = 4096,
.name = "N25Q128..3E",
},
{
.device_id = STM_ID_N25Q256__3E,
.op_erase = CMD_M25PXX_SSE,
.page_size = 256,
.pages_per_sector = 16,
.nr_sectors = 8192,
.name = "N25Q256..3E",
},
{
.device_id = STM_ID_N25Q016__1E,
.op_erase = CMD_M25PXX_SSE,
.page_size = 256,
.pages_per_sector = 16,
.nr_sectors = 512,
.name = "N25Q016..1E",
},
{
.device_id = STM_ID_N25Q032__1E,
.op_erase = CMD_M25PXX_SSE,
.page_size = 256,
.pages_per_sector = 16,
.nr_sectors = 1024,
.name = "N25Q032..1E",
},
{
.device_id = STM_ID_N25Q064__1E,
.op_erase = CMD_M25PXX_SSE,
.page_size = 256,
.pages_per_sector = 16,
.nr_sectors = 2048,
.name = "N25Q064..1E",
},
{
.device_id = STM_ID_N25Q128__1E,
.op_erase = CMD_M25PXX_SSE,
.page_size = 256,
.pages_per_sector = 16,
.nr_sectors = 4096,
.name = "N25Q128..1E",
},
{
.device_id = STM_ID_N25Q256__1E,
.op_erase = CMD_M25PXX_SSE,
.page_size = 256,
.pages_per_sector = 16,
.nr_sectors = 8192,
.name = "N25Q256..1E",
},
};
static const struct spi_flash_ops spi_flash_ops = {
.write = spi_flash_cmd_write_page_program,
.erase = spi_flash_cmd_erase,
};
int spi_flash_probe_stmicro(const struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash)
{
const struct stmicro_spi_flash_params *params;
unsigned int i;
if (idcode[0] == 0xff) {
i = spi_flash_cmd(spi, CMD_M25PXX_RES, idcode, 4);
if (i)
return -1;
if ((idcode[3] & 0xf0) == 0x10) {
idcode[0] = 0x20;
idcode[1] = 0x20;
idcode[2] = idcode[3] + 1;
} else
return -1;
}
for (i = 0; i < ARRAY_SIZE(stmicro_spi_flash_table); i++) {
params = &stmicro_spi_flash_table[i];
if (params->device_id == (idcode[1] << 8 | idcode[2])) {
break;
}
}
if (i == ARRAY_SIZE(stmicro_spi_flash_table)) {
printk(BIOS_WARNING, "SF: Unsupported STMicro 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 = params->op_erase;
flash->pp_cmd = CMD_M25PXX_PP;
flash->wren_cmd = CMD_M25PXX_WREN;
flash->ops = &spi_flash_ops;
return 0;
}
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