From fc1a123aa7392fe7900b466e6a6f089733fec1ee Mon Sep 17 00:00:00 2001 From: Furquan Shaikh Date: Fri, 12 May 2017 00:19:56 -0700 Subject: drivers/spi/spi_flash: Add page_size to struct spi_flash 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 Reviewed-on: https://review.coreboot.org/19704 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- src/drivers/spi/adesto.c | 54 ++++++++++++++++-------------------------------- 1 file changed, 18 insertions(+), 36 deletions(-) (limited to 'src/drivers/spi/adesto.c') diff --git a/src/drivers/spi/adesto.c b/src/drivers/spi/adesto.c index 1091d9a4b1..c5c68b546b 100644 --- a/src/drivers/spi/adesto.c +++ b/src/drivers/spi/adesto.c @@ -42,18 +42,6 @@ struct adesto_spi_flash_params { const char *name; }; -/* spi_flash needs to be first so upper layers can free() it */ -struct adesto_spi_flash { - struct spi_flash flash; - const struct adesto_spi_flash_params *params; -}; - -static inline struct adesto_spi_flash * -to_adesto_spi_flash(const struct spi_flash *flash) -{ - return container_of(flash, struct adesto_spi_flash, flash); -} - static const struct adesto_spi_flash_params adesto_spi_flash_table[] = { { .id = 0x4501, @@ -84,7 +72,6 @@ static const struct adesto_spi_flash_params adesto_spi_flash_table[] = { static int adesto_write(const struct spi_flash *flash, u32 offset, size_t len, const void *buf) { - struct adesto_spi_flash *stm = to_adesto_spi_flash(flash); unsigned long byte_addr; unsigned long page_size; size_t chunk_len; @@ -92,7 +79,7 @@ static int adesto_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; @@ -142,8 +129,7 @@ out: struct spi_flash *spi_flash_probe_adesto(struct spi_slave *spi, u8 *idcode) { const struct adesto_spi_flash_params *params; - unsigned page_size; - struct adesto_spi_flash *stm; + struct spi_flash *flash; unsigned int i; for (i = 0; i < ARRAY_SIZE(adesto_spi_flash_table); i++) { @@ -158,32 +144,28 @@ struct spi_flash *spi_flash_probe_adesto(struct spi_slave *spi, u8 *idcode) return NULL; } - stm = malloc(sizeof(struct adesto_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 = adesto_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_AT25DF_SE; + + flash->internal_write = adesto_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_AT25DF_SE; - - return &stm->flash; + + return flash; } -- cgit v1.2.3