MIPS: Ci20: Add DT node for spi-gpio driver

A SPI driver that uses the JZ4780's SPI hardware isn't available, so using a bit banging GPIO driver will work for now. Once the SPI driver is completed, it will use the same pins as the spi-gpio driver. Signed-off-by: Harvey Hunt <[email protected]>
MIPS · Jul 7, 2015 · 1e6da8a · 1e6da8a
1 parent e3d0871
commit 1e6da8a
Showing 1 changed file with 19 additions and 0 deletions.
diff --git a/arch/mips/boot/dts/jz4780.dtsi b/arch/mips/boot/dts/jz4780.dtsi
@@ -384,6 +384,25 @@
 			};
 		};
 
+		spi_gpio {
+			compatible = "spi-gpio";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			num-chipselects = <2>;
+
+			gpio-miso = <&gpe 14 0>;
+			gpio-sck = <&gpe 15 0>;
+			gpio-mosi = <&gpe 17 0>;
+			cs-gpios = <&gpe 16 0
+					&gpe 18 0>;
+
+			spidev@0 {
+				compatible = "spidev";
+				reg = <0>;
+				spi-max-frequency = <1000000>;
+			};
+		};
+
 		uart0: serial@10030000 {
 			compatible = "ingenic,jz4780-uart";
 			reg = <0x10030000 0x100>;