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soc/samsung/exynos5420: Move spi driver to use spi_bus_map

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This is in preparation to get rid of the strong spi_setup_slave
implemented by different platforms.

BUG=b:38430839

Change-Id: Ic937cbf93b87f5e43f7d70140b47fa97bcd7757e
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19777
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
This commit is contained in:
Furquan Shaikh
2017-05-18 14:44:04 -07:00
committed by Furquan Shaikh
parent e424a59729
commit f8662ca3bc
1 changed files with 20 additions and 13 deletions
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33
src/soc/samsung/exynos5420/spi.c
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@ -208,22 +208,11 @@ static void spi_ctrlr_release_bus(const struct spi_slave *slave)
setbits_le32(&regs->cs_reg, SPI_SLAVE_SIG_INACT); setbits_le32(&regs->cs_reg, SPI_SLAVE_SIG_INACT);
} }
static const struct spi_ctrlr spi_ctrlr = { static int spi_ctrlr_setup(const struct spi_slave *slave)
.claim_bus = spi_ctrlr_claim_bus,
.release_bus = spi_ctrlr_release_bus,
.xfer = spi_ctrlr_xfer,
.max_xfer_size = SPI_CTRLR_DEFAULT_MAX_XFER_SIZE,
};
int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave)
{ {
ASSERT(bus >= 0 && bus < 3); ASSERT(slave->bus >= 0 && slave->bus < 3);
struct exynos_spi_slave *eslave; struct exynos_spi_slave *eslave;
slave->bus = bus;
slave->cs = cs;
slave->ctrlr = &spi_ctrlr;
eslave = to_exynos_spi(slave); eslave = to_exynos_spi(slave);
if (!eslave->initialized) { if (!eslave->initialized) {
exynos_spi_init(eslave->regs); exynos_spi_init(eslave->regs);
@ -232,6 +221,24 @@ int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave)
return 0; return 0;
} }
static const struct spi_ctrlr spi_ctrlr = {
.setup = spi_ctrlr_setup,
.claim_bus = spi_ctrlr_claim_bus,
.release_bus = spi_ctrlr_release_bus,
.xfer = spi_ctrlr_xfer,
.max_xfer_size = SPI_CTRLR_DEFAULT_MAX_XFER_SIZE,
};
const struct spi_ctrlr_buses spi_ctrlr_bus_map[] = {
{
.ctrlr = &spi_ctrlr,
.bus_start = 0,
.bus_end = 2,
},
};
const size_t spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map);
static int exynos_spi_read(struct spi_slave *slave, void *dest, uint32_t len, static int exynos_spi_read(struct spi_slave *slave, void *dest, uint32_t len,
uint32_t off) uint32_t off)
{ {