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drivers/spi/spi_flash: Add page_size to struct spi_flash

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Add a new member page_size to spi_flash structure so that the various
spi flash drivers can store this info in spi_flash along with the
other sizes (sector size and total size) during flash probe. This
removes the need to have {driver}_spi_flash structure in every spi
flash driver.

This is part of patch series to clean up the SPI flash and SPI driver
interface.

BUG=b:38330715

Change-Id: I0f83e52cb1041432b0b575a8ee3bd173cc038d1f
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19704
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Furquan Shaikh
2017-05-12 00:19:56 -07:00
committed by Furquan Shaikh
parent f422fd2c78
commit fc1a123aa7
12 changed files with 162 additions and 305 deletions
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47
src/drivers/spi/eon.c
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@@ -40,18 +40,6 @@ struct eon_spi_flash_params {
const char *name;
};
/* spi_flash needs to be first so upper layers can free() it */
struct eon_spi_flash {
struct spi_flash flash;
const struct eon_spi_flash_params *params;
};
static inline
struct eon_spi_flash *to_eon_spi_flash(const struct spi_flash *flash)
{
return container_of(flash, struct eon_spi_flash, flash);
}
static const struct eon_spi_flash_params eon_spi_flash_table[] = {
{
.id = EON_ID_EN25Q128,
@@ -82,7 +70,6 @@ static const struct eon_spi_flash_params eon_spi_flash_table[] = {
static int eon_write(const struct spi_flash *flash,
u32 offset, size_t len, const void *buf)
{
struct eon_spi_flash *eon = to_eon_spi_flash(flash);
unsigned long byte_addr;
unsigned long page_size;
size_t chunk_len;
@@ -90,7 +77,7 @@ static int eon_write(const struct spi_flash *flash,
int ret = 0;
u8 cmd[4];
page_size = 1 << eon->params->page_size;
page_size = flash->page_size;
for (actual = 0; actual < len; actual += chunk_len) {
byte_addr = offset % page_size;
@@ -142,7 +129,7 @@ out:
struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode)
{
const struct eon_spi_flash_params *params;
struct eon_spi_flash *eon;
struct spi_flash *flash;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(eon_spi_flash_table); ++i) {
@@ -157,25 +144,25 @@ struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode)
return NULL;
}
eon = malloc(sizeof(*eon));
if (!eon) {
flash = malloc(sizeof(*flash));
if (!flash) {
printk(BIOS_WARNING, "SF: Failed to allocate memory\n");
return NULL;
}
eon->params = params;
memcpy(&eon->flash.spi, spi, sizeof(*spi));
eon->flash.name = params->name;
memcpy(&flash->spi, spi, sizeof(*spi));
eon->flash.internal_write = eon_write;
eon->flash.internal_erase = spi_flash_cmd_erase;
eon->flash.internal_status = spi_flash_cmd_status;
eon->flash.internal_read = spi_flash_cmd_read_fast;
eon->flash.sector_size = params->page_size * params->pages_per_sector;
eon->flash.size = params->page_size * params->pages_per_sector
* params->nr_sectors;
eon->flash.erase_cmd = CMD_EN25_SE;
eon->flash.status_cmd = CMD_EN25_RDSR;
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;
return &eon->flash;
flash->internal_write = eon_write;
flash->internal_erase = spi_flash_cmd_erase;
flash->internal_status = spi_flash_cmd_status;
flash->internal_read = spi_flash_cmd_read_fast;
return flash;
}