ARM: qcom: Add initial IPQ8064 SoC and AP148 device trees

Add basic IPQ8064 SoC include device tree and support for basic booting on
the AP148 Reference board with support for UART, I2C, and SPI.

Signed-off-by: Kumar Gala <galak@codeaurora.org>

arch/arm/boot/dts/qcom-ipq8064-ap148.dts

@@ -0,0 +1,85 @@
+#include "qcom-ipq8064-v1.0.dtsi"
+
+/ {
+	model = "Qualcomm IPQ8064/AP148";
+	compatible = "qcom,ipq8064-ap148", "qcom,ipq8064";
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+		rsvd@41200000 {
+			reg = <0x41200000 0x300000>;
+			no-map;
+		};
+	};
+
+	soc {
+		pinmux@800000 {
+			i2c4_pins: i2c4_pinmux {
+				pins = "gpio12", "gpio13";
+				function = "gsbi4";
+				bias-disable;
+			};
+
+			spi_pins: spi_pins {
+				mux {
+					pins = "gpio18", "gpio19", "gpio21";
+					function = "gsbi5";
+					drive-strength = <10>;
+					bias-none;
+				};
+			};
+		};
+
+		gsbi@16300000 {
+			qcom,mode = <GSBI_PROT_I2C_UART>;
+			status = "ok";
+			serial@16340000 {
+				status = "ok";
+			};
+
+			i2c4: i2c@16380000 {
+				status = "ok";
+
+				clock-frequency = <200000>;
+
+				pinctrl-0 = <&i2c4_pins>;
+				pinctrl-names = "default";
+			};
+		};
+
+		gsbi5: gsbi@1a200000 {
+			qcom,mode = <GSBI_PROT_SPI>;
+			status = "ok";
+
+			spi4: spi@1a280000 {
+				status = "ok";
+				spi-max-frequency = <50000000>;
+
+				pinctrl-0 = <&spi_pins>;
+				pinctrl-names = "default";
+
+				cs-gpios = <&qcom_pinmux 20 0>;
+
+				flash: m25p80@0 {
+					compatible = "s25fl256s1";
+					#address-cells = <1>;
+					#size-cells = <1>;
+					spi-max-frequency = <50000000>;
+					reg = <0>;
+
+					partition@0 {
+						label = "rootfs";
+						reg = <0x0 0x1000000>;
+					};
+
+					partition@1 {
+						label = "scratch";
+						reg = <0x1000000 0x1000000>;
+					};
+				};
+			};
+		};
+	};
+};