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/*
* SPI flash probing
*
* Copyright (C) 2008 Atmel Corporation
* Copyright (C) 2010 Reinhard Meyer, EMK Elektronik
* Copyright (C) 2013 Jagannadha Sutradharudu Teki, Xilinx Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <fdtdec.h>
#include <malloc.h>
#include <spi.h>
#include <spi_flash.h>
#include <asm/io.h>
#include "sf_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
* @e_rd_cmd: Enum list for read commands
* @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;
u8 e_rd_cmd;
u16 flags;
};
static const struct spi_flash_params spi_flash_params_table[] = {
#ifdef CONFIG_SPI_FLASH_ATMEL /* ATMEL */
{"AT45DB011D", 0x1f2200, 0x0, 64 * 1024, 4, 0, SECT_4K},
{"AT45DB021D", 0x1f2300, 0x0, 64 * 1024, 8, 0, SECT_4K},
{"AT45DB041D", 0x1f2400, 0x0, 64 * 1024, 8, 0, SECT_4K},
{"AT45DB081D", 0x1f2500, 0x0, 64 * 1024, 16, 0, SECT_4K},
{"AT45DB161D", 0x1f2600, 0x0, 64 * 1024, 32, 0, SECT_4K},
{"AT45DB321D", 0x1f2700, 0x0, 64 * 1024, 64, 0, SECT_4K},
{"AT45DB641D", 0x1f2800, 0x0, 64 * 1024, 128, 0, SECT_4K},
{"AT25DF321", 0x1f4701, 0x0, 64 * 1024, 64, 0, SECT_4K},
#endif
#ifdef CONFIG_SPI_FLASH_EON /* EON */
{"EN25Q32B", 0x1c3016, 0x0, 64 * 1024, 64, 0, 0},
{"EN25Q64", 0x1c3017, 0x0, 64 * 1024, 128, 0, SECT_4K},
{"EN25Q128B", 0x1c3018, 0x0, 64 * 1024, 256, 0, 0},
{"EN25S64", 0x1c3817, 0x0, 64 * 1024, 128, 0, 0},
#endif
#ifdef CONFIG_SPI_FLASH_GIGADEVICE /* GIGADEVICE */
{"GD25Q64B", 0xc84017, 0x0, 64 * 1024, 128, 0, SECT_4K},
{"GD25LQ32", 0xc86016, 0x0, 64 * 1024, 64, 0, SECT_4K},
#endif
#ifdef CONFIG_SPI_FLASH_MACRONIX /* MACRONIX */
{"MX25L2006E", 0xc22012, 0x0, 64 * 1024, 4, 0, 0},
{"MX25L4005", 0xc22013, 0x0, 64 * 1024, 8, 0, 0},
{"MX25L8005", 0xc22014, 0x0, 64 * 1024, 16, 0, 0},
{"MX25L1605D", 0xc22015, 0x0, 64 * 1024, 32, 0, 0},
{"MX25L3205D", 0xc22016, 0x0, 64 * 1024, 64, 0, 0},
{"MX25L6405D", 0xc22017, 0x0, 64 * 1024, 128, 0, 0},
{"MX25L12805", 0xc22018, 0x0, 64 * 1024, 256, 0, 0},
{"MX25L25635F", 0xc22019, 0x0, 64 * 1024, 512, 0, 0},
{"MX25L51235F", 0xc2201a, 0x0, 64 * 1024, 1024, 0, 0},
{"MX25L12855E", 0xc22618, 0x0, 64 * 1024, 256, 0, 0},
#endif
#ifdef CONFIG_SPI_FLASH_SPANSION /* SPANSION */
{"S25FL008A", 0x010213, 0x0, 64 * 1024, 16, 0, 0},
{"S25FL016A", 0x010214, 0x0, 64 * 1024, 32, 0, 0},
{"S25FL032A", 0x010215, 0x0, 64 * 1024, 64, 0, 0},
{"S25FL064A", 0x010216, 0x0, 64 * 1024, 128, 0, 0},
{"S25FL128P_256K", 0x012018, 0x0300, 256 * 1024, 64, 0, 0},
{"S25FL128P_64K", 0x012018, 0x0301, 64 * 1024, 256, 0, 0},
{"S25FL032P", 0x010215, 0x4d00, 64 * 1024, 64, 0, 0},
{"S25FL064P", 0x010216, 0x4d00, 64 * 1024, 128, 0, 0},
{"S25FL128S_64K", 0x012018, 0x4d01, 64 * 1024, 256, 0, 0},
{"S25FL256S_256K", 0x010219, 0x4d00, 64 * 1024, 512, RD_FULL, WR_QPP},
{"S25FL256S_64K", 0x010219, 0x4d01, 64 * 1024, 512, RD_FULL, WR_QPP},
{"S25FL512S_256K", 0x010220, 0x4d00, 64 * 1024, 1024, 0, 0},
{"S25FL512S_64K", 0x010220, 0x4d01, 64 * 1024, 1024, 0, 0},
#endif
#ifdef CONFIG_SPI_FLASH_STMICRO /* STMICRO */
{"M25P10", 0x202011, 0x0, 32 * 1024, 4, 0, 0},
{"M25P20", 0x202012, 0x0, 64 * 1024, 4, 0, 0},
{"M25P40", 0x202013, 0x0, 64 * 1024, 8, 0, 0},
{"M25P80", 0x202014, 0x0, 64 * 1024, 16, 0, 0},
{"M25P16", 0x202015, 0x0, 64 * 1024, 32, 0, 0},
{"M25P32", 0x202016, 0x0, 64 * 1024, 64, 0, 0},
{"M25P64", 0x202017, 0x0, 64 * 1024, 128, 0, 0},
{"M25P128", 0x202018, 0x0, 256 * 1024, 64, 0, 0},
{"N25Q32", 0x20ba16, 0x0, 64 * 1024, 64, 0, SECT_4K},
{"N25Q32A", 0x20bb16, 0x0, 64 * 1024, 64, 0, SECT_4K},
{"N25Q64", 0x20ba17, 0x0, 64 * 1024, 128, 0, SECT_4K},
{"N25Q64A", 0x20bb17, 0x0, 64 * 1024, 128, 0, SECT_4K},
{"N25Q128", 0x20ba18, 0x0, 64 * 1024, 256, 0, SECT_4K},
{"N25Q128A", 0x20bb18, 0x0, 64 * 1024, 256, 0, SECT_4K},
{"N25Q256", 0x20ba19, 0x0, 64 * 1024, 512, 0, SECT_4K},
{"N25Q256A", 0x20bb19, 0x0, 64 * 1024, 512, 0, SECT_4K},
{"N25Q512", 0x20ba20, 0x0, 64 * 1024, 1024, 0, E_FSR | SECT_4K},
{"N25Q512A", 0x20bb20, 0x0, 64 * 1024, 1024, 0, E_FSR | SECT_4K},
{"N25Q1024", 0x20ba21, 0x0, 64 * 1024, 2048, 0, E_FSR | SECT_4K},
{"N25Q1024A", 0x20bb21, 0x0, 64 * 1024, 2048, 0, E_FSR | SECT_4K},
#endif
#ifdef CONFIG_SPI_FLASH_SST /* SST */
{"SST25VF040B", 0xbf258d, 0x0, 64 * 1024, 8, 0, SECT_4K | SST_WP},
{"SST25VF080B", 0xbf258e, 0x0, 64 * 1024, 16, 0, SECT_4K | SST_WP},
{"SST25VF016B", 0xbf2541, 0x0, 64 * 1024, 32, 0, SECT_4K | SST_WP},
{"SST25VF032B", 0xbf254a, 0x0, 64 * 1024, 64, 0, SECT_4K | SST_WP},
{"SST25VF064C", 0xbf254b, 0x0, 64 * 1024, 128, 0, SECT_4K},
{"SST25WF512", 0xbf2501, 0x0, 64 * 1024, 1, 0, SECT_4K | SST_WP},
{"SST25WF010", 0xbf2502, 0x0, 64 * 1024, 2, 0, SECT_4K | SST_WP},
{"SST25WF020", 0xbf2503, 0x0, 64 * 1024, 4, 0, SECT_4K | SST_WP},
{"SST25WF040", 0xbf2504, 0x0, 64 * 1024, 8, 0, SECT_4K | SST_WP},
{"SST25WF080", 0xbf2505, 0x0, 64 * 1024, 16, 0, SECT_4K | SST_WP},
#endif
#ifdef CONFIG_SPI_FLASH_WINBOND /* WINBOND */
{"W25P80", 0xef2014, 0x0, 64 * 1024, 16, 0, 0},
{"W25P16", 0xef2015, 0x0, 64 * 1024, 32, 0, 0},
{"W25P32", 0xef2016, 0x0, 64 * 1024, 64, 0, 0},
{"W25X40", 0xef3013, 0x0, 64 * 1024, 8, 0, SECT_4K},
{"W25X16", 0xef3015, 0x0, 64 * 1024, 32, 0, SECT_4K},
{"W25X32", 0xef3016, 0x0, 64 * 1024, 64, 0, SECT_4K},
{"W25X64", 0xef3017, 0x0, 64 * 1024, 128, 0, SECT_4K},
{"W25Q80BL", 0xef4014, 0x0, 64 * 1024, 16, 0, SECT_4K},
{"W25Q16CL", 0xef4015, 0x0, 64 * 1024, 32, 0, SECT_4K},
{"W25Q32BV", 0xef4016, 0x0, 64 * 1024, 64, 0, SECT_4K},
{"W25Q64CV", 0xef4017, 0x0, 64 * 1024, 128, 0, SECT_4K},
{"W25Q128BV", 0xef4018, 0x0, 64 * 1024, 256, 0, SECT_4K},
{"W25Q256", 0xef4019, 0x0, 64 * 1024, 512, 0, SECT_4K},
{"W25Q80BW", 0xef5014, 0x0, 64 * 1024, 16, 0, SECT_4K},
{"W25Q16DW", 0xef6015, 0x0, 64 * 1024, 32, 0, SECT_4K},
{"W25Q32DW", 0xef6016, 0x0, 64 * 1024, 64, 0, SECT_4K},
{"W25Q64DW", 0xef6017, 0x0, 64 * 1024, 128, 0, SECT_4K},
{"W25Q128FW", 0xef6018, 0x0, 64 * 1024, 256, 0, SECT_4K},
#endif
/*
* Note:
* Below paired flash devices has similar spi_flash 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)
*/
};
/* Read commands array */
static u8 spi_read_cmds_array[] = {
CMD_READ_ARRAY_SLOW,
CMD_READ_DUAL_OUTPUT_FAST,
CMD_READ_DUAL_IO_FAST,
CMD_READ_QUAD_OUTPUT_FAST,
};
static int spi_flash_set_qeb(struct spi_flash *flash, u8 idcode0)
{
switch (idcode0) {
#if defined(CONFIG_SPI_FLASH_SPANSION) || defined(CONFIG_SPI_FLASH_WINBOND)
case SPI_FLASH_CFI_MFR_SPANSION:
case SPI_FLASH_CFI_MFR_WINBOND:
return spi_flash_set_qeb_winspan(flash);
#endif
#ifdef CONFIG_SPI_FLASH_STMICRO
case SPI_FLASH_CFI_MFR_STMICRO:
debug("SF: QEB is volatile for %02x flash\n", idcode0);
return 0;
#endif
default:
printf("SF: Need set QEB func for %02x flash\n", idcode0);
return -1;
}
}
static struct spi_flash *spi_flash_validate_params(struct spi_slave *spi,
u8 *idcode)
{
const struct spi_flash_params *params;
struct spi_flash *flash;
int i;
u8 cmd;
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));
/* Assign spi data */
flash->spi = spi;
flash->name = params->name;
flash->memory_map = spi->memory_map;
/* Assign spi_flash ops */
flash->write = spi_flash_cmd_write_ops;
#ifdef CONFIG_SPI_FLASH_SST
if (params->flags & SST_WP)
flash->write = sst_write_wp;
#endif
flash->erase = spi_flash_cmd_erase_ops;
flash->read = spi_flash_cmd_read_ops;
/* Compute the flash size */
flash->page_size = (ext_jedec == 0x4d00) ? 512 : 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;
}
/* Look for the fastest read cmd */
cmd = fls(params->e_rd_cmd & flash->spi->op_mode_rx);
if (cmd) {
cmd = spi_read_cmds_array[cmd - 1];
flash->read_cmd = cmd;
} else {
/* Go for for default supported read cmd */
flash->read_cmd = CMD_READ_ARRAY_FAST;
}
/* Not require to look for fastest only two write cmds yet */
if (params->flags & WR_QPP && flash->spi->op_mode_tx & SPI_OPM_TX_QPP)
flash->write_cmd = CMD_QUAD_PAGE_PROGRAM;
else
/* Go for default supported write cmd */
flash->write_cmd = CMD_PAGE_PROGRAM;
/* Set the quad enable bit - only for quad commands */
if ((flash->read_cmd == CMD_READ_QUAD_OUTPUT_FAST) ||
(flash->write_cmd == CMD_QUAD_PAGE_PROGRAM)) {
if (spi_flash_set_qeb(flash, idcode[0])) {
debug("SF: Fail to set QEB for %02x\n", idcode[0]);
return NULL;
}
}
/* 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
/* Configure the BAR - discover bank cmds and read current bank */
#ifdef CONFIG_SPI_FLASH_BAR
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 = map_sysmem(addr, size);
return 0;
}
#endif /* CONFIG_OF_CONTROL */
static struct spi_flash *spi_flash_probe_slave(struct spi_slave *spi)
{
struct spi_flash *flash = NULL;
u8 idcode[5];
int ret;
/* Setup spi_slave */
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 params from spi_flash_params table */
flash = spi_flash_validate_params(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->page_size, ", erase size ");
print_size(flash->erase_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;
}
struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
unsigned int max_hz, unsigned int spi_mode)
{
struct spi_slave *spi;
spi = spi_setup_slave(bus, cs, max_hz, spi_mode);
return spi_flash_probe_slave(spi);
}
#ifdef CONFIG_OF_SPI_FLASH
struct spi_flash *spi_flash_probe_fdt(const void *blob, int slave_node,
int spi_node)
{
struct spi_slave *spi;
spi = spi_setup_slave_fdt(blob, slave_node, spi_node);
return spi_flash_probe_slave(spi);
}
#endif
void spi_flash_free(struct spi_flash *flash)
{
spi_free_slave(flash->spi);
free(flash);
}
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