arm: dts: mt2701: Add spi device node

Add spi device node for MT2701.

Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
Signed-off-by: Erin Lo <erin.lo@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
diff --git a/arch/arm/boot/dts/mt2701-evb.dts b/arch/arm/boot/dts/mt2701-evb.dts
index 082ca88..879f1eb 100644
--- a/arch/arm/boot/dts/mt2701-evb.dts
+++ b/arch/arm/boot/dts/mt2701-evb.dts
@@ -24,6 +24,56 @@
 	};
 };
 
+&pio {
+	spi_pins_a: spi0@0 {
+		pins_spi {
+			pinmux = <MT2701_PIN_53_SPI0_CSN__FUNC_SPI0_CS>,
+				 <MT2701_PIN_54_SPI0_CK__FUNC_SPI0_CK>,
+				 <MT2701_PIN_55_SPI0_MI__FUNC_SPI0_MI>,
+				 <MT2701_PIN_56_SPI0_MO__FUNC_SPI0_MO>;
+			bias-disable;
+		};
+	};
+
+	spi_pins_b: spi1@0 {
+		pins_spi {
+			pinmux = <MT2701_PIN_7_SPI1_CSN__FUNC_SPI1_CS>,
+				 <MT2701_PIN_8_SPI1_MI__FUNC_SPI1_MI>,
+				 <MT2701_PIN_9_SPI1_MO__FUNC_SPI1_MO>,
+				 <MT2701_PIN_199_SPI1_CLK__FUNC_SPI1_CK>;
+			bias-disable;
+		};
+	};
+
+	spi_pins_c: spi2@0 {
+		pins_spi {
+			pinmux = <MT2701_PIN_101_SPI2_CSN__FUNC_SPI2_CS>,
+				 <MT2701_PIN_102_SPI2_MI__FUNC_SPI2_MI>,
+				 <MT2701_PIN_103_SPI2_MO__FUNC_SPI2_MO>,
+				 <MT2701_PIN_104_SPI2_CLK__FUNC_SPI2_CK>;
+			bias-disable;
+		};
+	};
+};
+
+&spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi_pins_a>;
+	status = "disabled";
+};
+
+&spi1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi_pins_b>;
+	status = "disabled";
+};
+
+&spi2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi_pins_c>;
+	status = "disabled";
+};
+
 &uart0 {
 	status = "okay";
 };