diff options
| author | Furquan Shaikh <furquan@chromium.org> | 2017-05-15 14:35:15 -0700 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2017-05-19 21:21:47 +0200 |
| commit | 30221b45e02f0be8940debd8ad5690c77d6a97a6 (patch) | |
| tree | 0771086cabe7259abef22d80a29377d2661bc795 /src/drivers/spi/stmicro.c | |
| parent | fc1a123aa7392fe7900b466e6a6f089733fec1ee (diff) | |
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>
Diffstat (limited to 'src/drivers/spi/stmicro.c')
| -rw-r--r-- | src/drivers/spi/stmicro.c | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/src/drivers/spi/stmicro.c b/src/drivers/spi/stmicro.c index 2ec9f18376..b7ceba21a8 100644 --- a/src/drivers/spi/stmicro.c +++ b/src/drivers/spi/stmicro.c @@ -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; } |