diff options
Diffstat (limited to 'src/soc/intel/skylake/spi.c')
| -rw-r--r-- | src/soc/intel/skylake/spi.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/spi.c b/src/soc/intel/skylake/spi.c index a8a83c6f31..ddff4dcbcd 100644 --- a/src/soc/intel/skylake/spi.c +++ b/src/soc/intel/skylake/spi.c @@ -33,8 +33,31 @@ static const struct spi_ctrlr flash_spi_ctrlr = { .setup = flash_spi_ctrlr_setup, }; +static int gspi_ctrlr_get_config(const struct spi_slave *dev, + struct spi_cfg *cfg) +{ + if (dev->cs != 0) { + printk(BIOS_ERR, "%s: Unsupported device " + "bus=0x%x,cs=0x%x!\n", __func__, dev->bus, dev->cs); + return -1; + } + + cfg->clk_phase = SPI_CLOCK_PHASE_FIRST; + cfg->clk_polarity = SPI_POLARITY_LOW; + cfg->cs_polarity = SPI_POLARITY_LOW; + cfg->wire_mode = SPI_4_WIRE_MODE; + cfg->data_bit_length = 8; + + return 0; +} + +static const struct spi_ctrlr gspi_ctrlr = { + .get_config = gspi_ctrlr_get_config, +}; + const struct spi_ctrlr_buses spi_ctrlr_bus_map[] = { { .ctrlr = &flash_spi_ctrlr, .bus_start = 0, .bus_end = 0 }, + { .ctrlr = &gspi_ctrlr, .bus_start = 1, .bus_end = 2 }, }; const size_t spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map); |