mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-28 15:41:40 +00:00
sf: probe: Add new spi_flash_probe support
Added new spi_flash_probe support, currently added N25Q* flash part attributes support. Updated the sector_size attributes as per the flash parts. Looks fine for with this sector_size for computing the size of flash. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
This commit is contained in:
Jagannadha Sutradharudu Teki
parent
4d5e29a680
commit
4d4ec9927f
3 changed files with 385 additions and 122 deletions
|
|
@ -14,7 +14,7 @@ COBJS-$(CONFIG_SPL_SPI_LOAD) += spi_spl_load.o
|
|||
COBJS-$(CONFIG_SPL_SPI_BOOT) += fsl_espi_spl.o
|
||||
endif
|
||||
|
||||
COBJS-$(CONFIG_SPI_FLASH) += spi_flash_probe.o spi_flash_ops.o spi_flash.o
|
||||
COBJS-$(CONFIG_SPI_FLASH) += spi_flash_probe_legacy.o spi_flash_ops.o spi_flash.o
|
||||
COBJS-$(CONFIG_SPI_FLASH_ATMEL) += atmel.o
|
||||
COBJS-$(CONFIG_SPI_FLASH_EON) += eon.o
|
||||
COBJS-$(CONFIG_SPI_FLASH_GIGADEVICE) += gigadevice.o
|
||||
|
|
|
|||
|
|
@ -18,6 +18,98 @@
|
|||
|
||||
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
|
||||
*/
|
||||
struct spi_flash_params {
|
||||
const char *name;
|
||||
u32 jedec;
|
||||
u16 ext_jedec;
|
||||
u32 sector_size;
|
||||
u32 nr_sectors;
|
||||
};
|
||||
|
||||
static const struct spi_flash_params spi_flash_params_table[] = {
|
||||
#ifdef CONFIG_SPI_FLASH_STMICRO /* STMICRO */
|
||||
{"N25Q32", 0x20ba16, 0x0, 64 * 1024, 64},
|
||||
{"N25Q32A", 0x20bb16, 0x0, 64 * 1024, 64},
|
||||
{"N25Q64", 0x20ba17, 0x0, 64 * 1024, 128},
|
||||
{"N25Q64A", 0x20bb17, 0x0, 64 * 1024, 128},
|
||||
{"N25Q128", 0x20ba18, 0x0, 64 * 1024, 256},
|
||||
{"N25Q128A", 0x20bb18, 0x0, 64 * 1024, 256},
|
||||
{"N25Q256", 0x20ba19, 0x0, 64 * 1024, 512},
|
||||
{"N25Q256A", 0x20bb19, 0x0, 64 * 1024, 512},
|
||||
{"N25Q512", 0x20ba20, 0x0, 64 * 1024, 1024},
|
||||
{"N25Q512A", 0x20bb20, 0x0, 64 * 1024, 1024},
|
||||
{"N25Q1024", 0x20ba21, 0x0, 64 * 1024, 2048},
|
||||
{"N25Q1024A", 0x20bb21, 0x0, 64 * 1024, 2048},
|
||||
#endif
|
||||
/*
|
||||
* TODO:
|
||||
* ATMEL
|
||||
* EON
|
||||
* GIGADEVICE
|
||||
* MACRONIX
|
||||
* RAMTRON
|
||||
* SPANSION
|
||||
* SST
|
||||
* STMICRO (M25*)
|
||||
* WINBOND
|
||||
*/
|
||||
};
|
||||
|
||||
struct spi_flash *spi_flash_validate_ids(struct spi_slave *spi, u8 *idcode)
|
||||
{
|
||||
const struct spi_flash_params *params;
|
||||
struct spi_flash *flash;
|
||||
int i;
|
||||
u16 jedec = idcode[1] << 8 | idcode[2];
|
||||
|
||||
/* Get the flash id (jedec = manuf_id + dev_id) */
|
||||
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)
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (i == ARRAY_SIZE(spi_flash_params_table)) {
|
||||
printf("SF: Unsupported flash ID: manuf %02x, jedec %04x\n",
|
||||
idcode[0], jedec);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
flash = malloc(sizeof(*flash));
|
||||
if (!flash) {
|
||||
debug("SF: Failed to allocate spi_flash\n");
|
||||
return NULL;
|
||||
}
|
||||
memset(flash, '\0', sizeof(*flash));
|
||||
|
||||
flash->spi = spi;
|
||||
flash->name = params->name;
|
||||
flash->poll_cmd = CMD_READ_STATUS;
|
||||
|
||||
/* Assign spi_flash ops */
|
||||
flash->write = spi_flash_cmd_write_multi;
|
||||
flash->erase = spi_flash_cmd_erase;
|
||||
flash->read = spi_flash_cmd_read_fast;
|
||||
|
||||
/* Compute the flash size */
|
||||
flash->page_size = 256;
|
||||
flash->sector_size = params->sector_size;
|
||||
flash->size = flash->sector_size * params->nr_sectors;
|
||||
|
||||
return flash;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_SPI_FLASH_BAR
|
||||
int spi_flash_bank_config(struct spi_flash *flash, u8 idcode0)
|
||||
{
|
||||
|
|
@ -84,89 +176,22 @@ int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash)
|
|||
}
|
||||
#endif /* CONFIG_OF_CONTROL */
|
||||
|
||||
/*
|
||||
* The following table holds all device probe functions
|
||||
*
|
||||
* shift: number of continuation bytes before the ID
|
||||
* idcode: the expected IDCODE or 0xff for non JEDEC devices
|
||||
* probe: the function to call
|
||||
*
|
||||
* Non JEDEC devices should be ordered in the table such that
|
||||
* the probe functions with best detection algorithms come first.
|
||||
*
|
||||
* Several matching entries are permitted, they will be tried
|
||||
* in sequence until a probe function returns non NULL.
|
||||
*
|
||||
* IDCODE_CONT_LEN may be redefined if a device needs to declare a
|
||||
* larger "shift" value. IDCODE_PART_LEN generally shouldn't be
|
||||
* changed. This is the max number of bytes probe functions may
|
||||
* examine when looking up part-specific identification info.
|
||||
*
|
||||
* Probe functions will be given the idcode buffer starting at their
|
||||
* manu id byte (the "idcode" in the table below). In other words,
|
||||
* all of the continuation bytes will be skipped (the "shift" below).
|
||||
*/
|
||||
#define IDCODE_CONT_LEN 0
|
||||
#define IDCODE_PART_LEN 5
|
||||
static const struct {
|
||||
const u8 shift;
|
||||
const u8 idcode;
|
||||
struct spi_flash *(*probe) (struct spi_slave *spi, u8 *idcode);
|
||||
} flashes[] = {
|
||||
/* Keep it sorted by define name */
|
||||
#ifdef CONFIG_SPI_FLASH_ATMEL
|
||||
{ 0, 0x1f, spi_flash_probe_atmel, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FLASH_EON
|
||||
{ 0, 0x1c, spi_flash_probe_eon, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FLASH_GIGADEVICE
|
||||
{ 0, 0xc8, spi_flash_probe_gigadevice, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FLASH_MACRONIX
|
||||
{ 0, 0xc2, spi_flash_probe_macronix, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FLASH_SPANSION
|
||||
{ 0, 0x01, spi_flash_probe_spansion, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FLASH_SST
|
||||
{ 0, 0xbf, spi_flash_probe_sst, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FLASH_STMICRO
|
||||
{ 0, 0x20, spi_flash_probe_stmicro, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FLASH_WINBOND
|
||||
{ 0, 0xef, spi_flash_probe_winbond, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FRAM_RAMTRON
|
||||
{ 6, 0xc2, spi_fram_probe_ramtron, },
|
||||
# undef IDCODE_CONT_LEN
|
||||
# define IDCODE_CONT_LEN 6
|
||||
#endif
|
||||
/* Keep it sorted by best detection */
|
||||
#ifdef CONFIG_SPI_FLASH_STMICRO
|
||||
{ 0, 0xff, spi_flash_probe_stmicro, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FRAM_RAMTRON_NON_JEDEC
|
||||
{ 0, 0xff, spi_fram_probe_ramtron, },
|
||||
#endif
|
||||
};
|
||||
#define IDCODE_LEN (IDCODE_CONT_LEN + IDCODE_PART_LEN)
|
||||
|
||||
struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
|
||||
unsigned int max_hz, unsigned int spi_mode)
|
||||
{
|
||||
struct spi_slave *spi;
|
||||
struct spi_flash *flash = NULL;
|
||||
int ret, i, shift;
|
||||
u8 idcode[IDCODE_LEN], *idp;
|
||||
u8 idcode[5], *idp;
|
||||
int ret;
|
||||
|
||||
/* Setup spi_slave */
|
||||
spi = spi_setup_slave(bus, cs, max_hz, spi_mode);
|
||||
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);
|
||||
|
|
@ -175,45 +200,33 @@ struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
|
|||
|
||||
/* Read the ID codes */
|
||||
ret = spi_flash_cmd(spi, CMD_READ_ID, idcode, sizeof(idcode));
|
||||
if (ret)
|
||||
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
|
||||
|
||||
/* count the number of continuation bytes */
|
||||
for (shift = 0, idp = idcode;
|
||||
shift < IDCODE_CONT_LEN && *idp == 0x7f;
|
||||
++shift, ++idp)
|
||||
continue;
|
||||
|
||||
/* search the table for matches in shift and id */
|
||||
for (i = 0; i < ARRAY_SIZE(flashes); ++i)
|
||||
if (flashes[i].shift == shift && flashes[i].idcode == *idp) {
|
||||
/* we have a match, call probe */
|
||||
flash = flashes[i].probe(spi, idp);
|
||||
if (flash)
|
||||
break;
|
||||
}
|
||||
|
||||
if (!flash) {
|
||||
printf("SF: Unsupported manufacturer %02x\n", *idp);
|
||||
goto err_manufacturer_probe;
|
||||
}
|
||||
/* Validate ID's from flash dev table */
|
||||
idp = idcode;
|
||||
flash = spi_flash_validate_ids(spi, idp);
|
||||
if (!flash)
|
||||
goto err_read_id;
|
||||
|
||||
#ifdef CONFIG_SPI_FLASH_BAR
|
||||
/* Configure the BAR - disover bank cmds and read current bank */
|
||||
/* Configure the BAR - discover bank cmds and read current bank */
|
||||
ret = spi_flash_bank_config(flash, *idp);
|
||||
if (ret < 0)
|
||||
goto err_manufacturer_probe;
|
||||
goto err_read_id;
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_OF_CONTROL
|
||||
if (spi_flash_decode_fdt(gd->fdt_blob, flash)) {
|
||||
debug("SF: FDT decode error\n");
|
||||
goto err_manufacturer_probe;
|
||||
goto err_read_id;
|
||||
}
|
||||
#endif
|
||||
#ifndef CONFIG_SPL_BUILD
|
||||
|
|
@ -231,11 +244,11 @@ struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
|
|||
}
|
||||
#endif
|
||||
|
||||
/* Release spi bus */
|
||||
spi_release_bus(spi);
|
||||
|
||||
return flash;
|
||||
|
||||
err_manufacturer_probe:
|
||||
err_read_id:
|
||||
spi_release_bus(spi);
|
||||
err_claim_bus:
|
||||
|
|
@ -243,32 +256,6 @@ err_claim_bus:
|
|||
return NULL;
|
||||
}
|
||||
|
||||
void *spi_flash_do_alloc(int offset, int size, struct spi_slave *spi,
|
||||
const char *name)
|
||||
{
|
||||
struct spi_flash *flash;
|
||||
void *ptr;
|
||||
|
||||
ptr = malloc(size);
|
||||
if (!ptr) {
|
||||
debug("SF: Failed to allocate memory\n");
|
||||
return NULL;
|
||||
}
|
||||
memset(ptr, '\0', size);
|
||||
flash = (struct spi_flash *)(ptr + offset);
|
||||
|
||||
/* Set up some basic fields - caller will sort out sizes */
|
||||
flash->spi = spi;
|
||||
flash->name = name;
|
||||
flash->poll_cmd = CMD_READ_STATUS;
|
||||
|
||||
flash->read = spi_flash_cmd_read_fast;
|
||||
flash->write = spi_flash_cmd_write_multi;
|
||||
flash->erase = spi_flash_cmd_erase;
|
||||
|
||||
return flash;
|
||||
}
|
||||
|
||||
void spi_flash_free(struct spi_flash *flash)
|
||||
{
|
||||
spi_free_slave(flash->spi);
|
||||
|
|
|
|||
276
drivers/mtd/spi/spi_flash_probe_legacy.c
Normal file
276
drivers/mtd/spi/spi_flash_probe_legacy.c
Normal file
|
|
@ -0,0 +1,276 @@
|
|||
/*
|
||||
* SPI flash probing
|
||||
*
|
||||
* Copyright (C) 2008 Atmel Corporation
|
||||
* Copyright (C) 2010 Reinhard Meyer, EMK Elektronik
|
||||
* Copyright (C) 2013 Jagannadha Sutradharudu Teki, Xilinx Inc.
|
||||
*
|
||||
* Licensed under the GPL-2 or later.
|
||||
*/
|
||||
|
||||
#include <common.h>
|
||||
#include <fdtdec.h>
|
||||
#include <malloc.h>
|
||||
#include <spi.h>
|
||||
#include <spi_flash.h>
|
||||
|
||||
#include "spi_flash_internal.h"
|
||||
|
||||
DECLARE_GLOBAL_DATA_PTR;
|
||||
|
||||
#ifdef CONFIG_SPI_FLASH_BAR
|
||||
int spi_flash_bank_config(struct spi_flash *flash, u8 idcode0)
|
||||
{
|
||||
u8 cmd;
|
||||
u8 curr_bank = 0;
|
||||
|
||||
/* discover bank cmds */
|
||||
switch (idcode0) {
|
||||
case SPI_FLASH_SPANSION_IDCODE0:
|
||||
flash->bank_read_cmd = CMD_BANKADDR_BRRD;
|
||||
flash->bank_write_cmd = CMD_BANKADDR_BRWR;
|
||||
break;
|
||||
case SPI_FLASH_STMICRO_IDCODE0:
|
||||
case SPI_FLASH_WINBOND_IDCODE0:
|
||||
flash->bank_read_cmd = CMD_EXTNADDR_RDEAR;
|
||||
flash->bank_write_cmd = CMD_EXTNADDR_WREAR;
|
||||
break;
|
||||
default:
|
||||
printf("SF: Unsupported bank commands %02x\n", idcode0);
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* read the bank reg - on which bank the flash is in currently */
|
||||
cmd = flash->bank_read_cmd;
|
||||
if (flash->size > SPI_FLASH_16MB_BOUN) {
|
||||
if (spi_flash_read_common(flash, &cmd, 1, &curr_bank, 1)) {
|
||||
debug("SF: fail to read bank addr register\n");
|
||||
return -1;
|
||||
}
|
||||
flash->bank_curr = curr_bank;
|
||||
} else {
|
||||
flash->bank_curr = curr_bank;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
#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 = (void *)addr;
|
||||
|
||||
return 0;
|
||||
}
|
||||
#endif /* CONFIG_OF_CONTROL */
|
||||
|
||||
/*
|
||||
* The following table holds all device probe functions
|
||||
*
|
||||
* shift: number of continuation bytes before the ID
|
||||
* idcode: the expected IDCODE or 0xff for non JEDEC devices
|
||||
* probe: the function to call
|
||||
*
|
||||
* Non JEDEC devices should be ordered in the table such that
|
||||
* the probe functions with best detection algorithms come first.
|
||||
*
|
||||
* Several matching entries are permitted, they will be tried
|
||||
* in sequence until a probe function returns non NULL.
|
||||
*
|
||||
* IDCODE_CONT_LEN may be redefined if a device needs to declare a
|
||||
* larger "shift" value. IDCODE_PART_LEN generally shouldn't be
|
||||
* changed. This is the max number of bytes probe functions may
|
||||
* examine when looking up part-specific identification info.
|
||||
*
|
||||
* Probe functions will be given the idcode buffer starting at their
|
||||
* manu id byte (the "idcode" in the table below). In other words,
|
||||
* all of the continuation bytes will be skipped (the "shift" below).
|
||||
*/
|
||||
#define IDCODE_CONT_LEN 0
|
||||
#define IDCODE_PART_LEN 5
|
||||
static const struct {
|
||||
const u8 shift;
|
||||
const u8 idcode;
|
||||
struct spi_flash *(*probe) (struct spi_slave *spi, u8 *idcode);
|
||||
} flashes[] = {
|
||||
/* Keep it sorted by define name */
|
||||
#ifdef CONFIG_SPI_FLASH_ATMEL
|
||||
{ 0, 0x1f, spi_flash_probe_atmel, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FLASH_EON
|
||||
{ 0, 0x1c, spi_flash_probe_eon, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FLASH_GIGADEVICE
|
||||
{ 0, 0xc8, spi_flash_probe_gigadevice, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FLASH_MACRONIX
|
||||
{ 0, 0xc2, spi_flash_probe_macronix, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FLASH_SPANSION
|
||||
{ 0, 0x01, spi_flash_probe_spansion, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FLASH_SST
|
||||
{ 0, 0xbf, spi_flash_probe_sst, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FLASH_STMICRO
|
||||
{ 0, 0x20, spi_flash_probe_stmicro, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FLASH_WINBOND
|
||||
{ 0, 0xef, spi_flash_probe_winbond, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FRAM_RAMTRON
|
||||
{ 6, 0xc2, spi_fram_probe_ramtron, },
|
||||
# undef IDCODE_CONT_LEN
|
||||
# define IDCODE_CONT_LEN 6
|
||||
#endif
|
||||
/* Keep it sorted by best detection */
|
||||
#ifdef CONFIG_SPI_FLASH_STMICRO
|
||||
{ 0, 0xff, spi_flash_probe_stmicro, },
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_FRAM_RAMTRON_NON_JEDEC
|
||||
{ 0, 0xff, spi_fram_probe_ramtron, },
|
||||
#endif
|
||||
};
|
||||
#define IDCODE_LEN (IDCODE_CONT_LEN + IDCODE_PART_LEN)
|
||||
|
||||
struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
|
||||
unsigned int max_hz, unsigned int spi_mode)
|
||||
{
|
||||
struct spi_slave *spi;
|
||||
struct spi_flash *flash = NULL;
|
||||
int ret, i, shift;
|
||||
u8 idcode[IDCODE_LEN], *idp;
|
||||
|
||||
spi = spi_setup_slave(bus, cs, max_hz, spi_mode);
|
||||
if (!spi) {
|
||||
printf("SF: Failed to set up slave\n");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
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)
|
||||
goto err_read_id;
|
||||
|
||||
#ifdef DEBUG
|
||||
printf("SF: Got idcodes\n");
|
||||
print_buffer(0, idcode, 1, sizeof(idcode), 0);
|
||||
#endif
|
||||
|
||||
/* count the number of continuation bytes */
|
||||
for (shift = 0, idp = idcode;
|
||||
shift < IDCODE_CONT_LEN && *idp == 0x7f;
|
||||
++shift, ++idp)
|
||||
continue;
|
||||
|
||||
/* search the table for matches in shift and id */
|
||||
for (i = 0; i < ARRAY_SIZE(flashes); ++i)
|
||||
if (flashes[i].shift == shift && flashes[i].idcode == *idp) {
|
||||
/* we have a match, call probe */
|
||||
flash = flashes[i].probe(spi, idp);
|
||||
if (flash)
|
||||
break;
|
||||
}
|
||||
|
||||
if (!flash) {
|
||||
printf("SF: Unsupported manufacturer %02x\n", *idp);
|
||||
goto err_manufacturer_probe;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_SPI_FLASH_BAR
|
||||
/* Configure the BAR - disover bank cmds and read current bank */
|
||||
ret = spi_flash_bank_config(flash, *idp);
|
||||
if (ret < 0)
|
||||
goto err_manufacturer_probe;
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_OF_CONTROL
|
||||
if (spi_flash_decode_fdt(gd->fdt_blob, flash)) {
|
||||
debug("SF: FDT decode error\n");
|
||||
goto err_manufacturer_probe;
|
||||
}
|
||||
#endif
|
||||
#ifndef CONFIG_SPL_BUILD
|
||||
printf("SF: Detected %s with page size ", flash->name);
|
||||
print_size(flash->sector_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
|
||||
|
||||
spi_release_bus(spi);
|
||||
|
||||
return flash;
|
||||
|
||||
err_manufacturer_probe:
|
||||
err_read_id:
|
||||
spi_release_bus(spi);
|
||||
err_claim_bus:
|
||||
spi_free_slave(spi);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void *spi_flash_do_alloc(int offset, int size, struct spi_slave *spi,
|
||||
const char *name)
|
||||
{
|
||||
struct spi_flash *flash;
|
||||
void *ptr;
|
||||
|
||||
ptr = malloc(size);
|
||||
if (!ptr) {
|
||||
debug("SF: Failed to allocate memory\n");
|
||||
return NULL;
|
||||
}
|
||||
memset(ptr, '\0', size);
|
||||
flash = (struct spi_flash *)(ptr + offset);
|
||||
|
||||
/* Set up some basic fields - caller will sort out sizes */
|
||||
flash->spi = spi;
|
||||
flash->name = name;
|
||||
flash->poll_cmd = CMD_READ_STATUS;
|
||||
|
||||
flash->read = spi_flash_cmd_read_fast;
|
||||
flash->write = spi_flash_cmd_write_multi;
|
||||
flash->erase = spi_flash_cmd_erase;
|
||||
|
||||
return flash;
|
||||
}
|
||||
|
||||
void spi_flash_free(struct spi_flash *flash)
|
||||
{
|
||||
spi_free_slave(flash->spi);
|
||||
free(flash);
|
||||
}
|
||||
Loading…
Reference in a new issue