@@ -338,6 +338,30 @@
bias-pull-up;
};
+ /omit-if-no-ref/
+ spi0_pins: spi0-pins {
+ pins = "PC0", "PC2", "PC3";
+ function = "spi0";
+ };
+
+ /omit-if-no-ref/
+ spi0_cs_pin: spi0-cs-pin {
+ pins = "PC5";
+ function = "spi0";
+ };
+
+ /omit-if-no-ref/
+ spi1_pins: spi1-pins {
+ pins = "PH4", "PH5", "PH6";
+ function = "spi1";
+ };
+
+ /omit-if-no-ref/
+ spi1_cs_pin: spi1-cs-pin {
+ pins = "PH3";
+ function = "spi1";
+ };
+
spdif_tx_pin: spdif-tx-pin {
pins = "PH7";
function = "spdif";
@@ -504,6 +528,36 @@
#size-cells = <0>;
};
+ spi0: spi@5010000 {
+ compatible = "allwinner,sun50i-h6-spi",
+ "allwinner,sun8i-h3-spi";
+ reg = <0x05010000 0x1000>;
+ interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_SPI0>, <&ccu CLK_SPI0>;
+ clock-names = "ahb", "mod";
+ dmas = <&dma 22>, <&dma 22>;
+ dma-names = "rx", "tx";
+ resets = <&ccu RST_BUS_SPI0>;
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ spi1: spi@5011000 {
+ compatible = "allwinner,sun50i-h6-spi",
+ "allwinner,sun8i-h3-spi";
+ reg = <0x05011000 0x1000>;
+ interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_SPI1>, <&ccu CLK_SPI1>;
+ clock-names = "ahb", "mod";
+ dmas = <&dma 23>, <&dma 23>;
+ dma-names = "rx", "tx";
+ resets = <&ccu RST_BUS_SPI1>;
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
emac: ethernet@5020000 {
compatible = "allwinner,sun50i-h6-emac",
"allwinner,sun50i-a64-emac";
The Allwinner H6 SoC contains two SPI controllers similar to the H3/A64, but with the added capability of 3-wire and 4-wire operation modes. For now the driver does not support those, but the SPI registers are fully backwards-compatible, just adding bits and registers which were formerly reserved. So we can use the existing driver for the "normal" SPI modes, for instance to access the SPI NOR flash soldered on the PineH64 board. We use an H6 specific compatible string in addition to the existing H3 string, so when the driver later gains Quad SPI support, it should work automatically without any DT changes. Tested by accessing the SPI flash on a Pine H64 board (SPI0), also connecting another SPI flash to the SPI1 header pins. Signed-off-by: Andre Przywara <andre.przywara@arm.com> --- arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 54 ++++++++++++++++++++ 1 file changed, 54 insertions(+)