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drivers/spi/spi_flash: Pass in flash structure to fill in probe 

Instead of making all SPI drivers allocate space for a spi_flash
structure and fill it in, udpate the API to allow callers to pass in a
spi_flash structure that can be filled by the flash drivers as
required. This also cleans up the interface so that the callers can
maintain and free the space for spi_flash structure as required.

BUG=b:38330715

Change-Id: If6f1b403731466525c4690777d9b32ce778eb563
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19705
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Furquan Shaikh 2017-05-15 14:35:15 -07:00 committed by Furquan Shaikh
parent fc1a123aa7
commit 30221b45e0
25 changed files with 261 additions and 271 deletions
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15
src/cpu/amd/pi/spi.c
View File

@ -21,23 +21,22 @@
void spi_SaveS3info(u32 pos, u32 size, u8 *buf, u32 len)
{
struct spi_flash *flash;
struct spi_flash flash;
spi_init();
flash = spi_flash_probe(0, 0);
if (!flash) {
if (spi_flash_probe(0, 0, &flash)) {
printk(BIOS_DEBUG, "Could not find SPI device\n");
/* Dont make flow stop. */
return;
}
spi_flash_volatile_group_begin(flash);
spi_flash_volatile_group_begin(&flash);
spi_flash_erase(flash, pos, size);
spi_flash_write(flash, pos, sizeof(len), &len);
spi_flash_write(flash, pos + sizeof(len), len, buf);
spi_flash_erase(&flash, pos, size);
spi_flash_write(&flash, pos, sizeof(len), &len);
spi_flash_write(&flash, pos + sizeof(len), len, buf);
spi_flash_volatile_group_end(flash);
spi_flash_volatile_group_end(&flash);
return;
}

9
src/drivers/intel/fsp1_0/fastboot_cache.c
View File

@ -157,6 +157,7 @@ void update_mrc_cache(void *unused)
struct mrc_data_container *current = cbmem_find(CBMEM_ID_MRCDATA);
struct mrc_data_container *cache, *cache_base;
u32 cache_size;
struct spi_flash flash;
if (!current) {
printk(BIOS_ERR, "No fast boot cache in cbmem. Can't update flash.\n");
@ -189,8 +190,7 @@ void update_mrc_cache(void *unused)
/* 1. use spi_flash_probe() to find the flash, then... */
spi_init();
struct spi_flash *flash = spi_flash_probe(0, 0);
if (!flash) {
if (spi_flash_probe(0, 0, &flash)) {
printk(BIOS_DEBUG, "Could not find SPI device\n");
return;
}
@ -209,7 +209,8 @@ void update_mrc_cache(void *unused)
"Need to erase the MRC cache region of %d bytes at %p\n",
cache_size, cache_base);
spi_flash_erase(flash, to_flash_offset(cache_base), cache_size);
spi_flash_erase(&flash, to_flash_offset(cache_base),
cache_size);
/* we will start at the beginning again */
cache = cache_base;
@ -217,7 +218,7 @@ void update_mrc_cache(void *unused)
/* 4. write mrc data with spi_flash_write() */
printk(BIOS_DEBUG, "Write MRC cache update to flash at %p\n",
cache);
spi_flash_write(flash, to_flash_offset(cache),
spi_flash_write(&flash, to_flash_offset(cache),
current->mrc_data_size + sizeof(*current), current);
}

14
src/drivers/spi/adesto.c
View File

@ -126,10 +126,10 @@ out:
return ret;
}
struct spi_flash *spi_flash_probe_adesto(struct spi_slave *spi, u8 *idcode)
int spi_flash_probe_adesto(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash)
{
const struct adesto_spi_flash_params *params;
struct spi_flash *flash;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(adesto_spi_flash_table); i++) {
@ -141,13 +141,7 @@ struct spi_flash *spi_flash_probe_adesto(struct spi_slave *spi, u8 *idcode)
if (i == ARRAY_SIZE(adesto_spi_flash_table)) {
printk(BIOS_WARNING, "SF: Unsupported adesto ID %02x%02x\n",
idcode[1], idcode[2]);
return NULL;
}
flash = malloc(sizeof(*flash));
if (!flash) {
printk(BIOS_WARNING, "SF: Failed to allocate memory\n");
return NULL;
return -1;
}
memcpy(&flash->spi, spi, sizeof(*spi));
@ -167,5 +161,5 @@ struct spi_flash *spi_flash_probe_adesto(struct spi_slave *spi, u8 *idcode)
flash->internal_read = spi_flash_cmd_read_fast;
#endif
return flash;
return 0;
}

14
src/drivers/spi/amic.c
View File

@ -109,11 +109,11 @@ out:
return ret;
}
struct spi_flash *spi_flash_probe_amic(struct spi_slave *spi, u8 *idcode)
int spi_flash_probe_amic(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash)
{
const struct amic_spi_flash_params *params;
unsigned int i;
struct spi_flash *flash;
for (i = 0; i < ARRAY_SIZE(amic_spi_flash_table); i++) {
params = &amic_spi_flash_table[i];
@ -124,13 +124,7 @@ struct spi_flash *spi_flash_probe_amic(struct spi_slave *spi, u8 *idcode)
if (i == ARRAY_SIZE(amic_spi_flash_table)) {
printk(BIOS_WARNING, "SF: Unsupported AMIC ID %02x%02x\n",
idcode[1], idcode[2]);
return NULL;
}
flash = malloc(sizeof(*flash));
if (!flash) {
printk(BIOS_WARNING, "SF: Failed to allocate memory\n");
return NULL;
return -1;
}
memcpy(&flash->spi, spi, sizeof(*spi));
@ -151,5 +145,5 @@ struct spi_flash *spi_flash_probe_amic(struct spi_slave *spi, u8 *idcode)
flash->internal_read = spi_flash_cmd_read_fast;
#endif
return flash;
return 0;
}

14
src/drivers/spi/atmel.c
View File

@ -154,11 +154,11 @@ out:
return ret;
}
struct spi_flash *spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode)
int spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash)
{
const struct atmel_spi_flash_params *params;
unsigned int i;
struct spi_flash *flash;
for (i = 0; i < ARRAY_SIZE(atmel_spi_flash_table); i++) {
params = &atmel_spi_flash_table[i];
@ -169,13 +169,7 @@ struct spi_flash *spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode)
if (i == ARRAY_SIZE(atmel_spi_flash_table)) {
printk(BIOS_WARNING, "SF: Unsupported Atmel ID %02x%02x\n",
idcode[1], idcode[2]);
return NULL;
}
flash = malloc(sizeof(*flash));
if (!flash) {
printk(BIOS_WARNING, "SF: Failed to allocate memory\n");
return NULL;
return -1;
}
memcpy(&flash->spi, spi, sizeof(*spi));
@ -196,5 +190,5 @@ struct spi_flash *spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode)
flash->internal_read = spi_flash_cmd_read_fast;
#endif
return flash;
return 0;
}

23
src/drivers/spi/boot_device_rw_nommap.c
View File

@ -17,13 +17,15 @@
#include <boot_device.h>
#include <spi_flash.h>
#include <spi-generic.h>
#include <stdint.h>
static struct spi_flash *sfg CAR_GLOBAL;
static struct spi_flash sfg CAR_GLOBAL;
static bool sfg_init_done CAR_GLOBAL;
static ssize_t spi_readat(const struct region_device *rd, void *b,
size_t offset, size_t size)
{
struct spi_flash *sf = car_get_var(sfg);
struct spi_flash *sf = car_get_var_ptr(&sfg);
if (sf == NULL)
return -1;
@ -37,7 +39,7 @@ static ssize_t spi_readat(const struct region_device *rd, void *b,
static ssize_t spi_writeat(const struct region_device *rd, const void *b,
size_t offset, size_t size)
{
struct spi_flash *sf = car_get_var(sfg);
struct spi_flash *sf = car_get_var_ptr(&sfg);
if (sf == NULL)
return -1;
@ -51,7 +53,7 @@ static ssize_t spi_writeat(const struct region_device *rd, const void *b,
static ssize_t spi_eraseat(const struct region_device *rd,
size_t offset, size_t size)
{
struct spi_flash *sf = car_get_var(sfg);
struct spi_flash *sf = car_get_var_ptr(&sfg);
if (sf == NULL)
return -1;
@ -76,13 +78,14 @@ static void boot_device_rw_init(void)
const int bus = CONFIG_BOOT_DEVICE_SPI_FLASH_BUS;
const int cs = 0;
if (car_get_var(sfg) != NULL)
if (car_get_var(sfg_init_done) == true)
return;
/* Ensure any necessary setup is performed by the drivers. */
spi_init();
car_set_var(sfg, spi_flash_probe(bus, cs));
if (!spi_flash_probe(bus, cs, car_get_var_ptr(&sfg)))
car_set_var(sfg_init_done, true);
}
const struct region_device *boot_device_rw(void)
@ -90,7 +93,7 @@ const struct region_device *boot_device_rw(void)
/* Probe for the SPI flash device if not already done. */
boot_device_rw_init();
if (car_get_var(sfg) == NULL)
if (car_get_var(sfg_init_done) != true)
return NULL;
return &spi_rw;
@ -99,5 +102,9 @@ const struct region_device *boot_device_rw(void)
const struct spi_flash *boot_device_spi_flash(void)
{
boot_device_rw_init();
return car_get_var(sfg);
if (car_get_var(sfg_init_done) != true)
return NULL;
return car_get_var_ptr(&sfg);
}

25
src/drivers/spi/cbfs_spi.c
View File

@ -24,9 +24,11 @@
#include <spi_flash.h>
#include <symbols.h>
#include <cbmem.h>
#include <stdint.h>
#include <timer.h>
static struct spi_flash *spi_flash_info;
static struct spi_flash spi_flash_info;
static bool spi_flash_init_done;
/*
* Set this to 1 to debug SPI speed, 0 to disable it
@ -47,7 +49,7 @@ static ssize_t spi_readat(const struct region_device *rd, void *b,
if (show)
stopwatch_init(&sw);
if (spi_flash_read(spi_flash_info, offset, size, b))
if (spi_flash_read(&spi_flash_info, offset, size, b))
return -1;
if (show) {
long usecs;
@ -68,7 +70,7 @@ static ssize_t spi_readat(const struct region_device *rd, void *b,
static ssize_t spi_writeat(const struct region_device *rd, const void *b,
size_t offset, size_t size)
{
if (spi_flash_write(spi_flash_info, offset, size, b))
if (spi_flash_write(&spi_flash_info, offset, size, b))
return -1;
return size;
}
@ -76,7 +78,7 @@ static ssize_t spi_writeat(const struct region_device *rd, const void *b,
static ssize_t spi_eraseat(const struct region_device *rd,
size_t offset, size_t size)
{
if (spi_flash_erase(spi_flash_info, offset, size))
if (spi_flash_erase(&spi_flash_info, offset, size))
return -1;
return size;
}
@ -112,10 +114,13 @@ void boot_device_init(void)
int bus = CONFIG_BOOT_DEVICE_SPI_FLASH_BUS;
int cs = 0;
if (spi_flash_info != NULL)
if (spi_flash_init_done == true)
return;
spi_flash_info = spi_flash_probe(bus, cs);
if (spi_flash_probe(bus, cs, &spi_flash_info))
return;
spi_flash_init_done = true;
mmap_helper_device_init(&mdev, _cbfs_cache, _cbfs_cache_size);
}
@ -123,7 +128,7 @@ void boot_device_init(void)
/* Return the CBFS boot device. */
const struct region_device *boot_device_ro(void)
{
if (spi_flash_info == NULL)
if (spi_flash_init_done != true)
return NULL;
return &mdev.rdev;
@ -138,5 +143,9 @@ const struct region_device *boot_device_rw(void)
const struct spi_flash *boot_device_spi_flash(void)
{
boot_device_init();
return spi_flash_info;
if (spi_flash_init_done != true)
return NULL;
return &spi_flash_info;
}

14
src/drivers/spi/eon.c
View File

@ -126,10 +126,10 @@ out:
return ret;
}
struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode)
int spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash)
{
const struct eon_spi_flash_params *params;
struct spi_flash *flash;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(eon_spi_flash_table); ++i) {
@ -141,13 +141,7 @@ struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode)
if (i == ARRAY_SIZE(eon_spi_flash_table)) {
printk(BIOS_WARNING, "SF: Unsupported EON ID %#02x%02x\n",
idcode[1], idcode[2]);
return NULL;
}
flash = malloc(sizeof(*flash));
if (!flash) {
printk(BIOS_WARNING, "SF: Failed to allocate memory\n");
return NULL;
return -1;
}
memcpy(&flash->spi, spi, sizeof(*spi));
@ -164,5 +158,5 @@ struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode)
flash->internal_status = spi_flash_cmd_status;
flash->internal_read = spi_flash_cmd_read_fast;
return flash;
return 0;
}

33
src/drivers/spi/gigadevice.c
View File

@ -170,9 +170,8 @@ out:
return ret;
}
static struct spi_flash flash;
struct spi_flash *spi_flash_probe_gigadevice(struct spi_slave *spi, u8 *idcode)
int spi_flash_probe_gigadevice(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash)
{
const struct gigadevice_spi_flash_params *params;
unsigned int i;
@ -187,28 +186,28 @@ struct spi_flash *spi_flash_probe_gigadevice(struct spi_slave *spi, u8 *idcode)
printk(BIOS_WARNING,
"SF gigadevice.c: Unsupported ID %#02x%02x\n",
idcode[1], idcode[2]);
return NULL;
return -1;
}
memcpy(&flash.spi, spi, sizeof(*spi));
flash.name = params->name;
memcpy(&flash->spi, spi, sizeof(*spi));
flash->name = params->name;
/* Assuming power-of-two page size initially. */
flash.page_size = 1 << params->l2_page_size;
flash.sector_size = flash.page_size * params->pages_per_sector;
flash.size = flash.sector_size * params->sectors_per_block *
flash->page_size = 1 << params->l2_page_size;
flash->sector_size = flash->page_size * params->pages_per_sector;
flash->size = flash->sector_size * params->sectors_per_block *
params->nr_blocks;
flash.erase_cmd = CMD_GD25_SE;
flash.status_cmd = CMD_GD25_RDSR;
flash->erase_cmd = CMD_GD25_SE;
flash->status_cmd = CMD_GD25_RDSR;
flash.internal_write = gigadevice_write;
flash.internal_erase = spi_flash_cmd_erase;
flash.internal_status = spi_flash_cmd_status;
flash->internal_write = gigadevice_write;
flash->internal_erase = spi_flash_cmd_erase;
flash->internal_status = spi_flash_cmd_status;
#if CONFIG_SPI_FLASH_NO_FAST_READ
flash.internal_read = spi_flash_cmd_read_slow;
flash->internal_read = spi_flash_cmd_read_slow;
#else
flash.internal_read = spi_flash_cmd_read_fast;
flash->internal_read = spi_flash_cmd_read_fast;
#endif
return &flash;
return 0;
}

33
src/drivers/spi/macronix.c
View File

@ -192,9 +192,8 @@ static int macronix_write(const struct spi_flash *flash, u32 offset, size_t len,
return ret;
}
static struct spi_flash flash;
struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode)
int spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash)
{
const struct macronix_spi_flash_params *params;
unsigned int i;
@ -208,26 +207,26 @@ struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode)
if (i == ARRAY_SIZE(macronix_spi_flash_table)) {
printk(BIOS_WARNING, "SF: Unsupported Macronix ID %04x\n", id);
return NULL;
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->sectors_per_block *
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->sectors_per_block *
params->nr_blocks;
flash.erase_cmd = CMD_MX25XX_SE;
flash.status_cmd = CMD_MX25XX_RDSR;
flash->erase_cmd = CMD_MX25XX_SE;
flash->status_cmd = CMD_MX25XX_RDSR;
flash.internal_write = macronix_write;
flash.internal_erase = spi_flash_cmd_erase;
flash.internal_status = spi_flash_cmd_status;
flash->internal_write = macronix_write;
flash->internal_erase = spi_flash_cmd_erase;
flash->internal_status = spi_flash_cmd_status;
#if CONFIG_SPI_FLASH_NO_FAST_READ
flash.internal_read = spi_flash_cmd_read_slow;
flash->internal_read = spi_flash_cmd_read_slow;
#else
flash.internal_read = spi_flash_cmd_read_fast;
flash->internal_read = spi_flash_cmd_read_fast;
#endif
return &flash;
return 0;
}

31
src/drivers/spi/spansion.c
View File

@ -246,9 +246,8 @@ static int spansion_write(const struct spi_flash *flash, u32 offset, size_t len,
return ret;
}
static struct spi_flash flash;
struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
int spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash)
{
const struct spansion_spi_flash_params *params;
unsigned int i;
@ -263,21 +262,21 @@ struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
printk(BIOS_WARNING,
"SF: Unsupported SPANSION ID %02x %02x %02x %02x %02x\n",
idcode[0], idcode[1], idcode[2], idcode[3], idcode[4]);
return NULL;
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_S25FLXX_SE;
flash.status_cmd = CMD_S25FLXX_RDSR;
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_S25FLXX_SE;
flash->status_cmd = CMD_S25FLXX_RDSR;
flash.internal_write = spansion_write;
flash.internal_erase = spi_flash_cmd_erase;
flash.internal_read = spi_flash_cmd_read_slow;
flash.internal_status = spi_flash_cmd_status;
flash->internal_write = spansion_write;
flash->internal_erase = spi_flash_cmd_erase;
flash->internal_read = spi_flash_cmd_read_slow;
flash->internal_status = spi_flash_cmd_status;
return &flash;
return 0;
}

48
src/drivers/spi/spi_flash.c
View File

@ -240,7 +240,8 @@ int spi_flash_cmd_status(const struct spi_flash *flash, u8 *reg)
static struct {
const u8 shift;
const u8 idcode;
struct spi_flash *(*probe) (struct spi_slave *spi, u8 *idcode);
int (*probe) (struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash);
} flashes[] = {
/* Keep it sorted by define name */
#if CONFIG_SPI_FLASH_AMIC
@ -280,24 +281,24 @@ static struct {
};
#define IDCODE_LEN (IDCODE_CONT_LEN + IDCODE_PART_LEN)
struct spi_flash *
int
__attribute__((weak)) spi_flash_programmer_probe(struct spi_slave *spi,
int force)
int force,
struct spi_flash *flash)
{
/* Default weak implementation. Do nothing. */
return NULL;
return -1;
}
static struct spi_flash *__spi_flash_probe(struct spi_slave *spi)
static int __spi_flash_probe(struct spi_slave *spi, struct spi_flash *flash)
{
int ret, i, shift;
u8 idcode[IDCODE_LEN], *idp;
struct spi_flash *flash = NULL;
/* Read the ID codes */
ret = spi_flash_cmd(spi, CMD_READ_ID, idcode, sizeof(idcode));
if (ret)
return NULL;
return -1;
if (IS_ENABLED(CONFIG_DEBUG_SPI_FLASH)) {
printk(BIOS_SPEW, "SF: Got idcode: ");
@ -317,45 +318,44 @@ static struct spi_flash *__spi_flash_probe(struct spi_slave *spi)
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 (flashes[i].probe(spi, idp, flash) == 0)
return 0;
}
return flash;
/* No match, return error. */
return -1;
}
struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs)
int spi_flash_probe(unsigned int bus, unsigned int cs, struct spi_flash *flash)
{
struct spi_slave spi;
struct spi_flash *flash;
if (spi_setup_slave(bus, cs, &spi)) {
printk(BIOS_WARNING, "SF: Failed to set up slave\n");
return NULL;
return -1;
}
/* Try special programmer probe if any (without force). */
flash = spi_flash_programmer_probe(&spi, 0);
if (spi_flash_programmer_probe(&spi, 0, flash) == 0)
goto flash_found;
/* If flash is not found, try generic spi flash probe. */
if (!flash)
flash = __spi_flash_probe(&spi);
if (__spi_flash_probe(&spi, flash) == 0)
goto flash_found;
/* If flash is not yet found, force special programmer probe if any. */
if (!flash)
flash = spi_flash_programmer_probe(&spi, 1);
if (spi_flash_programmer_probe(&spi, 1, flash) == 0)
goto flash_found;
/* Give up -- nothing more to try if flash is not found. */
if (!flash) {
printk(BIOS_WARNING, "SF: Unsupported manufacturer!\n");
return NULL;
}
printk(BIOS_WARNING, "SF: Unsupported manufacturer!\n");
return -1;
flash_found:
printk(BIOS_INFO, "SF: Detected %s with sector size 0x%x, total 0x%x\n",
flash->name, flash->sector_size, flash->size);
return flash;
return 0;
}
int spi_flash_read(const struct spi_flash *flash, u32 offset, size_t len,

34
src/drivers/spi/spi_flash_internal.h
View File

@ -64,17 +64,27 @@ int spi_flash_cmd_erase(const struct spi_flash *flash, u32 offset, size_t len);
int spi_flash_cmd_status(const struct spi_flash *flash, u8 *reg);
/* Manufacturer-specific probe functions */
struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode);
struct spi_flash *spi_flash_probe_amic(struct spi_slave *spi, u8 *idcode);
struct spi_flash *spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode);
struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode);
struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode);
struct spi_flash *spi_flash_probe_sst(struct spi_slave *spi, u8 *idcode);
struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 *idcode);
struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode);
struct spi_flash *spi_flash_probe_gigadevice(struct spi_slave *spi,
u8 *idcode);
struct spi_flash *spi_flash_probe_adesto(struct spi_slave *spi, u8 *idcode);
struct spi_flash *spi_fram_probe_ramtron(struct spi_slave *spi, u8 *idcode);
int spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash);
int spi_flash_probe_amic(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash);
int spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash);
int spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash);
int spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash);
int spi_flash_probe_sst(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash);
int spi_flash_probe_stmicro(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash);
int spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash);
int spi_flash_probe_gigadevice(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash);
int spi_flash_probe_adesto(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash);
int spi_fram_probe_ramtron(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash);
#endif /* SPI_FLASH_INTERNAL_H */

15
src/drivers/spi/sst.c
View File

@ -314,11 +314,10 @@ sst_unlock(const struct spi_flash *flash)
return ret;
}
struct spi_flash *
spi_flash_probe_sst(struct spi_slave *spi, u8 *idcode)
int spi_flash_probe_sst(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash)
{
const struct sst_spi_flash_params *params;
struct spi_flash *flash;
size_t i;
for (i = 0; i < ARRAY_SIZE(sst_spi_flash_table); ++i) {
@ -329,13 +328,7 @@ spi_flash_probe_sst(struct spi_slave *spi, u8 *idcode)
if (i == ARRAY_SIZE(sst_spi_flash_table)) {
printk(BIOS_WARNING, "SF: Unsupported SST ID %02x\n", idcode[1]);
return NULL;
}
flash = malloc(sizeof(*flash));
if (!flash) {
printk(BIOS_WARNING, "SF: Failed to allocate memory\n");
return NULL;
return -1;
}
memcpy(&flash->spi, spi, sizeof(*spi));
@ -353,5 +346,5 @@ spi_flash_probe_sst(struct spi_slave *spi, u8 *idcode)
/* Flash powers up read-only, so clear BP# bits */
sst_unlock(flash);
return flash;
return 0;
}

31
src/drivers/spi/stmicro.c
View File

@ -222,9 +222,8 @@ out:
return ret;
}
static struct spi_flash flash;
struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 * idcode)
int spi_flash_probe_stmicro(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash)
{
const struct stmicro_spi_flash_params *params;
unsigned int i;
@ -232,13 +231,13 @@ struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 * idcode)
if (idcode[0] == 0xff) {
i = spi_flash_cmd(spi, CMD_M25PXX_RES, idcode, 4);
if (i)
return NULL;
return -1;
if ((idcode[3] & 0xf0) == 0x10) {
idcode[0] = 0x20;
idcode[1] = 0x20;
idcode[2] = idcode[3] + 1;
} else
return NULL;
return -1;
}
for (i = 0; i < ARRAY_SIZE(stmicro_spi_flash_table); i++) {
@ -251,19 +250,19 @@ struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 * idcode)
if (i == ARRAY_SIZE(stmicro_spi_flash_table)) {
printk(BIOS_WARNING, "SF: Unsupported STMicro ID %02x%02x\n",
idcode[1], idcode[2]);
return NULL;
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;
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.internal_write = stmicro_write;
flash.internal_erase = spi_flash_cmd_erase;
flash.internal_read = spi_flash_cmd_read_fast;
flash->internal_write = stmicro_write;
flash->internal_erase = spi_flash_cmd_erase;
flash->internal_read = spi_flash_cmd_read_fast;
return &flash;
return 0;
}

33
src/drivers/spi/winbond.c
View File

@ -184,9 +184,8 @@ out:
return ret;
}
static struct spi_flash flash;
struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode)
int spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash)
{
const struct winbond_spi_flash_params *params;
unsigned int i;
@ -200,27 +199,27 @@ struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode)
if (i == ARRAY_SIZE(winbond_spi_flash_table)) {
printk(BIOS_WARNING, "SF: Unsupported Winbond ID %02x%02x\n",
idcode[1], idcode[2]);
return NULL;
return -1;
}
memcpy(&flash.spi, spi, sizeof(*spi));
flash.name = params->name;
memcpy(&flash->spi, spi, sizeof(*spi));
flash->name = params->name;
/* Assuming power-of-two page size initially. */
flash.page_size = 1 << params->l2_page_size;
flash.sector_size = flash.page_size * params->pages_per_sector;
flash.size = flash.sector_size * params->sectors_per_block *
flash->page_size = 1 << params->l2_page_size;
flash->sector_size = flash->page_size * params->pages_per_sector;
flash->size = flash->sector_size * params->sectors_per_block *
params->nr_blocks;
flash.erase_cmd = CMD_W25_SE;
flash.status_cmd = CMD_W25_RDSR;
flash->erase_cmd = CMD_W25_SE;
flash->status_cmd = CMD_W25_RDSR;
flash.internal_write = winbond_write;
flash.internal_erase = spi_flash_cmd_erase;
flash.internal_status = spi_flash_cmd_status;
flash->internal_write = winbond_write;
flash->internal_erase = spi_flash_cmd_erase;
flash->internal_status = spi_flash_cmd_status;
#if CONFIG_SPI_FLASH_NO_FAST_READ
flash.internal_read = spi_flash_cmd_read_slow;
flash->internal_read = spi_flash_cmd_read_slow;
#else
flash.internal_read = spi_flash_cmd_read_fast;
flash->internal_read = spi_flash_cmd_read_fast;
#endif
return &flash;
return 0;
}

26
src/include/spi_flash.h
View File

@ -50,14 +50,36 @@ struct spi_flash {
void lb_spi_flash(struct lb_header *header);
/* SPI Flash Driver Public API */
struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs);
/*
* Probe for SPI flash chip on given SPI bus and chip select and fill info in
* spi_flash structure.
*
* Params:
* bus = SPI Bus # for the flash chip
* cs = Chip select # for the flash chip
* flash = Pointer to spi flash structure that needs to be filled
*
* Return value:
* 0 = success
* non-zero = error
*/
int spi_flash_probe(unsigned int bus, unsigned int cs, struct spi_flash *flash);
/*
* Specialized probing performed by platform. This is a weak function which can
* be overriden by platform driver.
*
* Params:
* spi = Pointer to spi_slave structure.
* force = Indicates if the platform driver can skip specialized probing.
* flash = Pointer to spi_flash structure that needs to be filled.
*
* Return value:
* 0 = success
* non-zero = error
*/
struct spi_flash *spi_flash_programmer_probe(struct spi_slave *spi, int force);
int spi_flash_programmer_probe(struct spi_slave *spi, int force,
struct spi_flash *flash);
/* All the following functions return 0 on success and non-zero on error. */
int spi_flash_read(const struct spi_flash *flash, u32 offset, size_t len,

15
src/northbridge/amd/agesa/oem_s3.c
View File

@ -96,20 +96,19 @@ AGESA_STATUS OemS3LateRestore(AMD_S3_PARAMS *dataBlock)
static int spi_SaveS3info(u32 pos, u32 size, u8 *buf, u32 len)
{
#if IS_ENABLED(CONFIG_SPI_FLASH)
struct spi_flash *flash;
struct spi_flash flash;
spi_init();
flash = spi_flash_probe(0, 0);
if (!flash)
if (spi_flash_probe(0, 0, &flash))
return -1;
spi_flash_volatile_group_begin(flash);
spi_flash_volatile_group_begin(&flash);
spi_flash_erase(flash, pos, size);
spi_flash_write(flash, pos, sizeof(len), &len);
spi_flash_write(flash, pos + sizeof(len), len, buf);
spi_flash_erase(&flash, pos, size);
spi_flash_write(&flash, pos, sizeof(len), &len);
spi_flash_write(&flash, pos + sizeof(len), len, buf);
spi_flash_volatile_group_end(flash);
spi_flash_volatile_group_end(&flash);
return 0;
#else
return -1;

13
src/northbridge/amd/amdmct/mct_ddr3/s3utils.c
View File

@ -1100,7 +1100,7 @@ int8_t save_mct_information_to_nvram(void)
printk(BIOS_DEBUG, "Writing AMD DCT configuration to Flash\n");
struct spi_flash *flash;
struct spi_flash flash;
ssize_t s3nv_offset;
struct amd_s3_persistent_data *persistent_data;
@ -1140,23 +1140,22 @@ int8_t save_mct_information_to_nvram(void)
/* Initialize SPI and detect devices */
spi_init();
flash = spi_flash_probe(0, 0);
if (!flash) {
if (spi_flash_probe(0, 0, &flash)) {
printk(BIOS_DEBUG, "Could not find SPI device\n");
return -1;
}
spi_flash_volatile_group_begin(flash);
spi_flash_volatile_group_begin(&flash);
/* Erase and write data structure */
spi_flash_erase(flash, s3nv_offset, CONFIG_S3_DATA_SIZE);
spi_flash_write(flash, s3nv_offset,
spi_flash_erase(&flash, s3nv_offset, CONFIG_S3_DATA_SIZE);
spi_flash_write(&flash, s3nv_offset,
sizeof(struct amd_s3_persistent_data), persistent_data);
/* Deallocate temporary data structures */
free(persistent_data);
spi_flash_volatile_group_end(flash);
spi_flash_volatile_group_end(&flash);
/* Allow training bypass if DIMM configuration is unchanged on next boot */
nvram = 1;

8
src/northbridge/intel/common/mrc_cache.c
View File

@ -160,6 +160,7 @@ static void update_mrc_cache(void *unused)
struct mrc_data_container *cache, *cache_base;
u32 cache_size;
int ret;
struct spi_flash flash;
if (!current) {
printk(BIOS_ERR, "No MRC cache in cbmem. Can't update flash.\n");
@ -192,8 +193,7 @@ static void update_mrc_cache(void *unused)
// 1. use spi_flash_probe() to find the flash, then
spi_init();
struct spi_flash *flash = spi_flash_probe(0, 0);
if (!flash) {
if (spi_flash_probe(0, 0, &flash)) {
printk(BIOS_DEBUG, "Could not find SPI device\n");
return;
}
@ -212,7 +212,7 @@ static void update_mrc_cache(void *unused)
"Need to erase the MRC cache region of %d bytes at %p\n",
cache_size, cache_base);
spi_flash_erase(flash, to_flash_offset(flash, cache_base),
spi_flash_erase(&flash, to_flash_offset(&flash, cache_base),
cache_size);
/* we will start at the beginning again */
@ -221,7 +221,7 @@ static void update_mrc_cache(void *unused)
// 4. write mrc data with flash->write()
printk(BIOS_DEBUG, "Finally: write MRC cache update to flash at %p\n",
cache);
ret = spi_flash_write(flash, to_flash_offset(flash, cache),
ret = spi_flash_write(&flash, to_flash_offset(&flash, cache),
current->mrc_data_size + sizeof(*current), current);
if (ret)

18
src/soc/broadcom/cygnus/ddr_init.c
View File

@ -717,7 +717,7 @@ static int write_shmoo_to_flash(void *buf, int length)
static int write_shmoo_to_flash(void *buf, int length)
{
struct spi_flash *flash;
struct spi_flash flash;
int erase = 0;
volatile uint32_t *flptr;
int i, j, ret = 0;
@ -734,13 +734,7 @@ static int write_shmoo_to_flash(void *buf, int length)
}
/* Probe flash */
flash = spi_flash_probe(
CONFIG_ENV_SPI_BUS,
CONFIG_ENV_SPI_CS,
CONFIG_ENV_SPI_MAX_HZ,
CONFIG_ENV_SPI_MODE
);
if (!flash) {
if (spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, &flash)) {
printk(BIOS_ERR, "Failed to initialize SPI flash for saving Shmoo values!\n");
return -1;
}
@ -748,26 +742,22 @@ static int write_shmoo_to_flash(void *buf, int length)
/* Erase if necessary */
if (erase) {
ret = spi_flash_erase(
flash,
&flash,
offset / flash->sector_size * flash->sector_size,
flash->sector_size
);
if (ret) {
printk(BIOS_ERR, "SPI flash erase failed, error=%d\n", ret);
spi_flash_free(flash);
return ret;
}
}
/* Write data */
ret = spi_flash_write(flash, offset, length, buf);
ret = spi_flash_write(&flash, offset, length, buf);
if (ret) {
printk(BIOS_ERR, "SPI flash write failed, error=%d\n", ret);
}
/* Free flash instance */
spi_flash_free(flash);
return ret;
}

11
src/soc/intel/common/block/fast_spi/fast_spi_flash.c
View File

@ -169,9 +169,6 @@ static size_t get_xfer_len(const struct spi_flash *flash, uint32_t addr,
}
/* Flash device operations. */
static struct spi_flash boot_flash CAR_GLOBAL;
static int fast_spi_flash_erase(const struct spi_flash *flash,
uint32_t offset, size_t len)
{
@ -283,14 +280,12 @@ static int fast_spi_flash_status(const struct spi_flash *flash,
* The size of the flash component is always taken from density field in the
* SFDP table. FLCOMP.C0DEN is no longer used by the Flash Controller.
*/
struct spi_flash *spi_flash_programmer_probe(struct spi_slave *dev, int force)
int spi_flash_programmer_probe(struct spi_slave *dev,
int force, struct spi_flash *flash)
{
BOILERPLATE_CREATE_CTX(ctx);
struct spi_flash *flash;
uint32_t flash_bits;
flash = car_get_var_ptr(&boot_flash);
/*
* bytes = (bits + 1) / 8;
* But we need to do the addition in a way which doesn't overflow for
@ -317,7 +312,7 @@ struct spi_flash *spi_flash_programmer_probe(struct spi_slave *dev, int force)
flash->internal_read = fast_spi_flash_read;
flash->internal_status = fast_spi_flash_status;
return flash;
return 0;
}
int spi_flash_get_fpr_info(struct fpr_info *info)

14
src/soc/intel/fsp_baytrail/nvm.c
View File

@ -21,25 +21,27 @@
#include <spi-generic.h>
#include <spi_flash.h>
#include <soc/nvm.h>
#include <stdint.h>
/* This module assumes the flash is memory mapped just below 4GiB in the
* address space for reading. Also this module assumes an area it erased
* when all bytes read as all 0xff's. */
static struct spi_flash *flash;
static struct spi_flash flash;
static bool spi_flash_init_done;
static int nvm_init(void)
{
if (flash != NULL)
if (spi_flash_init_done == true)
return 0;
spi_init();
flash = spi_flash_probe(0, 0);
if (!flash) {
if (spi_flash_probe(0, 0, &flash)) {
printk(BIOS_DEBUG, "Could not find SPI device\n");
return -1;
}
spi_flash_init_done = true;
return 0;
}
@ -67,7 +69,7 @@ int nvm_erase(void *start, size_t size)
{
if (nvm_init() < 0)
return -1;
spi_flash_erase(flash, to_flash_offset(start), size);
spi_flash_erase(&flash, to_flash_offset(start), size);
return 0;
}
@ -76,6 +78,6 @@ int nvm_write(void *start, const void *data, size_t size)
{
if (nvm_init() < 0)
return -1;
spi_flash_write(flash, to_flash_offset(start), size, data);
spi_flash_write(&flash, to_flash_offset(start), size, data);
return 0;
}

26
src/soc/mediatek/mt8173/flash_controller.c
View File

@ -228,24 +228,24 @@ static int nor_erase(const struct spi_flash *flash, u32 offset, size_t len)
return 0;
}
struct spi_flash *spi_flash_programmer_probe(struct spi_slave *spi, int force)
int spi_flash_programmer_probe(struct spi_slave *spi,
int force, struct spi_flash *flash)
{
static struct spi_flash flash;
static int done;
if (done)
return &flash;
return 0;
write32(&mt8173_nor->wrprot, SFLASH_COMMAND_ENABLE);
memcpy(&flash.spi, spi, sizeof(*spi));
flash.name = "mt8173 flash controller";
flash.internal_write = nor_write;
flash.internal_erase = nor_erase;
flash.internal_read = nor_read;
flash.internal_status = 0;
flash.sector_size = 0x1000;
flash.erase_cmd = SECTOR_ERASE_CMD;
flash.size = CONFIG_ROM_SIZE;
memcpy(&flash->spi, spi, sizeof(*spi));
flash->name = "mt8173 flash controller";
flash->internal_write = nor_write;
flash->internal_erase = nor_erase;
flash->internal_read = nor_read;
flash->internal_status = 0;
flash->sector_size = 0x1000;
flash->erase_cmd = SECTOR_ERASE_CMD;
flash->size = CONFIG_ROM_SIZE;
done = 1;
return &flash;
return 0;
}

15
src/southbridge/intel/common/spi.c
View File

@ -899,10 +899,9 @@ static int ich_hwseq_write(const struct spi_flash *flash, u32 addr, size_t len,
return 0;
}
struct spi_flash *spi_flash_programmer_probe(struct spi_slave *spi, int force)
int spi_flash_programmer_probe(struct spi_slave *spi,
int force, struct spi_flash *flash)
{
struct spi_flash *flash = NULL;
uint32_t flcomp;
/*
@ -911,13 +910,7 @@ struct spi_flash *spi_flash_programmer_probe(struct spi_slave *spi, int force)
* 2. Specialized probing is forced by SPI flash driver.
*/
if (!spi_is_multichip() && !force)
return NULL;
flash = malloc(sizeof(*flash));
if (!flash) {
printk(BIOS_WARNING, "SF: Failed to allocate memory\n");
return NULL;
}
return -1;
memcpy(&flash->spi, spi, sizeof(*spi));
flash->name = "Opaque HW-sequencing";
@ -951,5 +944,5 @@ struct spi_flash *spi_flash_programmer_probe(struct spi_slave *spi, int force)
flash->size += 1 << (19 + ((flcomp >> 3) & 7));
printk (BIOS_DEBUG, "flash size 0x%x bytes\n", flash->size);
return flash;
return 0;
}