diff options
| author | Furquan Shaikh <furquan@chromium.org> | 2017-05-12 00:19:56 -0700 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2017-05-19 21:21:30 +0200 |
| commit | fc1a123aa7392fe7900b466e6a6f089733fec1ee (patch) | |
| tree | 9aeca66f20edb1d92aaa751d502134d401a15045 /src/soc/intel/common/block/fast_spi | |
| parent | f422fd2c78b8a7ab58e75ba7bd13b0c354a207b8 (diff) | |
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 <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>
Diffstat (limited to 'src/soc/intel/common/block/fast_spi')
| -rw-r--r-- | src/soc/intel/common/block/fast_spi/fast_spi_flash.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/src/soc/intel/common/block/fast_spi/fast_spi_flash.c b/src/soc/intel/common/block/fast_spi/fast_spi_flash.c index d56b33fa15..96a808d423 100644 --- a/src/soc/intel/common/block/fast_spi/fast_spi_flash.c +++ b/src/soc/intel/common/block/fast_spi/fast_spi_flash.c @@ -154,12 +154,13 @@ static int exec_sync_hwseq_xfer(struct fast_spi_flash_ctx *ctx, /* * Ensure read/write xfer len is not greater than SPIBAR_FDATA_FIFO_SIZE and - * that the operation does not cross 256-byte boundary. + * that the operation does not cross page boundary. */ -static size_t get_xfer_len(uint32_t addr, size_t len) +static size_t get_xfer_len(const struct spi_flash *flash, uint32_t addr, + size_t len) { size_t xfer_len = min(len, SPIBAR_FDATA_FIFO_SIZE); - size_t bytes_left = ALIGN_UP(addr, 256) - addr; + size_t bytes_left = ALIGN_UP(addr, flash->page_size) - addr; if (bytes_left) xfer_len = min(xfer_len, bytes_left); @@ -217,7 +218,7 @@ static int fast_spi_flash_read(const struct spi_flash *flash, BOILERPLATE_CREATE_CTX(ctx); while (len) { - xfer_len = get_xfer_len(addr, len); + xfer_len = get_xfer_len(flash, addr, len); ret = exec_sync_hwseq_xfer(ctx, SPIBAR_HSFSTS_CYCLE_READ, addr, xfer_len); @@ -244,7 +245,7 @@ static int fast_spi_flash_write(const struct spi_flash *flash, BOILERPLATE_CREATE_CTX(ctx); while (len) { - xfer_len = get_xfer_len(addr, len); + xfer_len = get_xfer_len(flash, addr, len); fill_xfer_fifo(ctx, data, xfer_len); ret = exec_sync_hwseq_xfer(ctx, SPIBAR_HSFSTS_CYCLE_WRITE, @@ -303,6 +304,7 @@ struct spi_flash *spi_flash_programmer_probe(struct spi_slave *dev, int force) /* Can erase both 4 KiB and 64 KiB chunks. Declare the smaller size. */ flash->sector_size = 4 * KiB; + flash->page_size = 256; /* * FIXME: Get erase+cmd, and status_cmd from SFDP. * |