@@ -29,6 +29,9 @@ struct rtspi {
#define REG(x) (rtspi->base + x)
+/* SoC-specific features */
+#define SPI_CSMAX_3 0x1
+#define SPI_QUAD_SUPPORTED 0x2
static void rt_set_cs(struct spi_device *spi, bool active)
{
@@ -185,13 +188,16 @@ static int realtek_rtl_spi_probe(struct platform_device *pdev)
static const struct of_device_id realtek_rtl_spi_of_ids[] = {
- { .compatible = "realtek,rtl8380-spi" },
- { .compatible = "realtek,rtl8382-spi" },
- { .compatible = "realtek,rtl8391-spi" },
- { .compatible = "realtek,rtl8392-spi" },
- { .compatible = "realtek,rtl8393-spi" },
+ { .compatible = "realtek,rtl8380-spi", .data = (void *)SPI_CSMAX_3, },
+ { .compatible = "realtek,rtl8382-spi", .data = (void *)SPI_CSMAX_3, },
+ { .compatible = "realtek,rtl8391-spi", .data = (void *)SPI_CSMAX_3, },
+ { .compatible = "realtek,rtl8392-spi", .data = (void *)SPI_CSMAX_3, },
+ { .compatible = "realtek,rtl8393-spi", .data = (void *)SPI_CSMAX_3, },
+ { .compatible = "realtek,rtl9300-spi", .data = (void *)SPI_QUAD_SUPPORTED, },
+ { .compatible = "realtek,rtl9310-spi", .data = (void *)SPI_QUAD_SUPPORTED, },
{ /* sentinel */ }
};
+
MODULE_DEVICE_TABLE(of, realtek_rtl_spi_of_ids);
static struct platform_driver realtek_rtl_spi_driver = {
The Realtek RTL930x and RTL931x SoCs are new generations of the RTL838x and RTL839x Ethernet Router SoCs, providing only 2 instead of 4 CS lines for SPI, however with quad IO capabilities instead of merely dual IO. We introduce device capability flags for the various SoCs stating their number of CS lines and their multi-IO capabilities and add compatibles for the RTL9300 and RTL9310 SoC families. Signed-off-by: Birger Koblitz <mail@birger-koblitz.de> --- drivers/spi/spi-realtek-rtl.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-)