Add exynosautov9 spi port configuration. It supports up to 12 spis so
MAX_SPI_PORTS should be increased from 6 to 12.
It has DIV_4 as the default internal clock divider and an internal
loopback mode to run a loopback test.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Reviewed-by: Andi Shyti <andi@xxxxxxxxxxx>
Signed-off-by: Chanho Park <chanho61.park@xxxxxxxxxxx>
---
drivers/spi/spi-s3c64xx.c | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index ff565e57736b..7f346866614a 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -18,7 +18,7 @@
#include <linux/platform_data/spi-s3c64xx.h>
-#define MAX_SPI_PORTS 6
+#define MAX_SPI_PORTS 12
#define S3C64XX_SPI_QUIRK_POLL (1 << 0)
#define S3C64XX_SPI_QUIRK_CS_AUTO (1 << 1)
#define AUTOSUSPEND_TIMEOUT 2000
@@ -1451,6 +1451,19 @@ static const struct s3c64xx_spi_port_config exynos5433_spi_port_config = {
.quirks = S3C64XX_SPI_QUIRK_CS_AUTO,
};
+static const struct s3c64xx_spi_port_config exynosautov9_spi_port_config = {
+ .fifo_lvl_mask = { 0x1ff, 0x1ff, 0x7f, 0x7f, 0x7f, 0x7f, 0x1ff, 0x7f,
+ 0x7f, 0x7f, 0x7f, 0x7f},
+ .rx_lvl_offset = 15,
+ .tx_st_done = 25,
+ .clk_div = 4,
+ .high_speed = true,
+ .clk_from_cmu = true,
+ .clk_ioclk = true,
+ .has_loopback = true,
+ .quirks = S3C64XX_SPI_QUIRK_CS_AUTO,
+};
+
static const struct s3c64xx_spi_port_config fsd_spi_port_config = {
.fifo_lvl_mask = { 0x7f, 0x7f, 0x7f, 0x7f, 0x7f},
.rx_lvl_offset = 15,
@@ -1492,6 +1505,9 @@ static const struct of_device_id s3c64xx_spi_dt_match[] = {
{ .compatible = "samsung,exynos5433-spi",
.data = (void *)&exynos5433_spi_port_config,
},
+ { .compatible = "samsung,exynosautov9-spi",
+ .data = (void *)&exynosautov9_spi_port_config,
+ },
{ .compatible = "tesla,fsd-spi",
.data = (void *)&fsd_spi_port_config,
},
--
2.36.1
