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Diffstat (limited to 'src/drivers/spi/atmel.c')
-rw-r--r--src/drivers/spi/atmel.c53
1 files changed, 18 insertions, 35 deletions
diff --git a/src/drivers/spi/atmel.c b/src/drivers/spi/atmel.c
index 4fe679d036..4f614ff283 100644
--- a/src/drivers/spi/atmel.c
+++ b/src/drivers/spi/atmel.c
@@ -38,18 +38,6 @@ struct atmel_spi_flash_params {
const char *name;
};
-/* spi_flash needs to be first so upper layers can free() it */
-struct atmel_spi_flash {
- struct spi_flash flash;
- const struct atmel_spi_flash_params *params;
-};
-
-static inline struct atmel_spi_flash *
-to_atmel_spi_flash(const struct spi_flash *flash)
-{
- return container_of(flash, struct atmel_spi_flash, flash);
-}
-
static const struct atmel_spi_flash_params atmel_spi_flash_table[] = {
{
.id = 0x3015,
@@ -112,7 +100,6 @@ static const struct atmel_spi_flash_params atmel_spi_flash_table[] = {
static int atmel_write(const struct spi_flash *flash, u32 offset, size_t len,
const void *buf)
{
- struct atmel_spi_flash *stm = to_atmel_spi_flash(flash);
unsigned long byte_addr;
unsigned long page_size;
size_t chunk_len;
@@ -120,7 +107,7 @@ static int atmel_write(const struct spi_flash *flash, u32 offset, size_t len,
int ret;
u8 cmd[4];
- page_size = 1 << stm->params->l2_page_size;
+ page_size = flash->page_size;
for (actual = 0; actual < len; actual += chunk_len) {
byte_addr = offset % page_size;
@@ -170,9 +157,8 @@ out:
struct spi_flash *spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode)
{
const struct atmel_spi_flash_params *params;
- unsigned page_size;
- struct atmel_spi_flash *stm;
unsigned int i;
+ struct spi_flash *flash;
for (i = 0; i < ARRAY_SIZE(atmel_spi_flash_table); i++) {
params = &atmel_spi_flash_table[i];
@@ -186,32 +172,29 @@ struct spi_flash *spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode)
return NULL;
}
- stm = malloc(sizeof(struct atmel_spi_flash));
- if (!stm) {
+ flash = malloc(sizeof(*flash));
+ if (!flash) {
printk(BIOS_WARNING, "SF: Failed to allocate memory\n");
return NULL;
}
- stm->params = params;
- memcpy(&stm->flash.spi, spi, sizeof(*spi));
- stm->flash.name = params->name;
+ memcpy(&flash->spi, spi, sizeof(*spi));
+ flash->name = params->name;
/* Assuming power-of-two page size initially. */
- page_size = 1 << params->l2_page_size;
-
- stm->flash.internal_write = atmel_write;
- stm->flash.internal_erase = spi_flash_cmd_erase;
+ 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_AT25_SE;
+
+ flash->internal_write = atmel_write;
+ flash->internal_erase = spi_flash_cmd_erase;
#if CONFIG_SPI_FLASH_NO_FAST_READ
- stm->flash.internal_read = spi_flash_cmd_read_slow;
+ flash->internal_read = spi_flash_cmd_read_slow;
#else
- stm->flash.internal_read = spi_flash_cmd_read_fast;
+ flash->internal_read = spi_flash_cmd_read_fast;
#endif
- stm->flash.sector_size = (1 << stm->params->l2_page_size) *
- stm->params->pages_per_sector;
- stm->flash.size = page_size * params->pages_per_sector
- * params->sectors_per_block
- * params->nr_blocks;
- stm->flash.erase_cmd = CMD_AT25_SE;
-
- return &stm->flash;
+
+ return flash;
}