diff options
| author | Furquan Shaikh <furquan@chromium.org> | 2017-05-02 19:43:20 -0700 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2017-05-05 23:40:51 +0200 |
| commit | f1db5fdb4d03b4766cf23e4b04a05b0fc05586a0 (patch) | |
| tree | cd4d04900e1b5d3e27d4d13cdfa39297e661e2aa /src/soc/intel/common | |
| parent | 35418f9814a64073550eb63a3bcb2e79021347cb (diff) | |
soc/intel/common: Provide common block fast_spi_flash_ctrlr
Now that we have a common block driver for fast spi flash controller,
provide spi_ctrlr structure that can be used by different platforms
for defining the bus-ctrlr mapping. Only cs 0 is considered valid.
Change-Id: I7228ae885018d1e23e6e80dd8ce227b0d99d84a6
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19575
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/common')
| -rw-r--r-- | src/soc/intel/common/block/fast_spi/fast_spi_flash.c | 15 | ||||
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/fast_spi.h | 6 |
2 files changed, 21 insertions, 0 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 3babf914b7..27a4bb7886 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 @@ -350,3 +350,18 @@ int fast_spi_flash_read_wpsr(u8 *sr) return 0; } + +static int fast_spi_flash_ctrlr_setup(const struct spi_slave *dev) +{ + if (dev->cs != 0) { + printk(BIOS_ERR, "%s: Invalid CS for fast SPI bus=0x%x,cs=0x%x!\n", + __func__, dev->bus, dev->cs); + return -1; + } + + return 0; +} + +const struct spi_ctrlr fast_spi_flash_ctrlr = { + .setup = fast_spi_flash_ctrlr_setup, +}; diff --git a/src/soc/intel/common/block/include/intelblocks/fast_spi.h b/src/soc/intel/common/block/include/intelblocks/fast_spi.h index 2b80c49837..e4bddc4e45 100644 --- a/src/soc/intel/common/block/include/intelblocks/fast_spi.h +++ b/src/soc/intel/common/block/include/intelblocks/fast_spi.h @@ -64,4 +64,10 @@ size_t fast_spi_get_bios_region(size_t *bios_size); */ void fast_spi_early_init(uintptr_t spi_base_address); +/* + * Fast SPI flash controller structure to allow SoCs to define bus-controller + * mapping. + */ +extern const struct spi_ctrlr fast_spi_flash_ctrlr; + #endif /* SOC_INTEL_COMMON_BLOCK_FAST_SPI_H */ |