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authorFurquan Shaikh <furquan@chromium.org>2017-05-18 14:44:04 -0700
committerFurquan Shaikh <furquan@google.com>2017-05-24 04:40:28 +0200
commitf8662ca3bc6279e70022a063acda7fc80d72dbff (patch)
tree5d615b4cb9b57430385524500fe7cbdbc69a1f99
parente424a597292f6fbf094042bc44e5ccdc957925f8 (diff)
downloadcoreboot-f8662ca3bc6279e70022a063acda7fc80d72dbff.tar.xz
soc/samsung/exynos5420: Move spi driver to use spi_bus_map
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>
-rw-r--r--src/soc/samsung/exynos5420/spi.c33
1 files changed, 20 insertions, 13 deletions
diff --git a/src/soc/samsung/exynos5420/spi.c b/src/soc/samsung/exynos5420/spi.c
index c2a5828f14..fa53c0f4a0 100644
--- a/src/soc/samsung/exynos5420/spi.c
+++ b/src/soc/samsung/exynos5420/spi.c
@@ -208,22 +208,11 @@ static void spi_ctrlr_release_bus(const struct spi_slave *slave)
setbits_le32(&regs->cs_reg, SPI_SLAVE_SIG_INACT);
}
-static const struct spi_ctrlr spi_ctrlr = {
- .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)
+static int spi_ctrlr_setup(const struct spi_slave *slave)
{
- ASSERT(bus >= 0 && bus < 3);
+ ASSERT(slave->bus >= 0 && slave->bus < 3);
struct exynos_spi_slave *eslave;
- slave->bus = bus;
- slave->cs = cs;
- slave->ctrlr = &spi_ctrlr;
-
eslave = to_exynos_spi(slave);
if (!eslave->initialized) {
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;
}
+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,
uint32_t off)
{