arm64: dts: Add spi bus dts

This patch adds MT8173 spi bus controllers into device tree.

Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
Reviewed-and-Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt8173-evb.dts b/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
index 4be66ca..811cb76 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
@@ -387,6 +387,24 @@
        };
 };
 
+&pio {
+       spi_pins_a: spi0 {
+               pins_spi {
+                       pinmux = <MT8173_PIN_69_SPI_CK__FUNC_SPI_CK_0_>,
+                               <MT8173_PIN_70_SPI_MI__FUNC_SPI_MI_0_>,
+                               <MT8173_PIN_71_SPI_MO__FUNC_SPI_MO_0_>,
+                               <MT8173_PIN_72_SPI_CS__FUNC_SPI_CS_0_>;
+               };
+       };
+};
+
+&spi {
+       pinctrl-names = "default";
+       pinctrl-0 = <&spi_pins_a>;
+       mediatek,pad-select = <0>;
+       status = "okay";
+};
+
 &uart0 {
        status = "okay";
 };

diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index 7f360b7..4bce167 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -365,6 +365,19 @@
                        status = "disabled";
                };
 
+               spi: spi@1100a000 {
+                       compatible = "mediatek,mt8173-spi";
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0 0x1100a000 0 0x1000>;
+                       interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_LOW>;
+                       clocks = <&topckgen CLK_TOP_SYSPLL3_D2>,
+                                <&topckgen CLK_TOP_SPI_SEL>,
+                                <&pericfg CLK_PERI_SPI0>;
+                       clock-names = "parent-clk", "sel-clk", "spi-clk";
+                       status = "disabled";
+               };
+
                i2c3: i2c@11010000 {
                        compatible = "mediatek,mt8173-i2c";
                        reg = <0 0x11010000 0 0x70>,