ARM: dts: keystone-k2g-evm: add bindings for SPI NOR flash

K2G EVM has n25q128a13 SPI NOR flash on SPI1. Enable SPI1 in the DT
node as well as add a subnode for the SPI NOR.
Signed-off-by: NMurali Karicheri <m-karicheri2@ti.com>
Signed-off-by: NFranklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: NSantosh Shilimkar <ssantosh@kernel.org>

arch/arm/boot/dts/keystone-k2g-evm.dts

@@ -51,6 +51,16 @@
 			K2G_CORE_IOPAD(0x1374) (BUFFER_CLASS_B | MUX_MODE4)	/* pr1_mdio_data.ecap0_in_apwm0_out */
 		>;
 	};
+
+	spi1_pins: pinmux_spi1_pins {
+		pinctrl-single,pins = <
+			K2G_CORE_IOPAD(0x11a4) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0)	/* spi1_scs0.spi1_scs0 */
+			K2G_CORE_IOPAD(0x11ac) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0)	/* spi1_clk.spi1_clk */
+			K2G_CORE_IOPAD(0x11b0) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0)	/* spi1_miso.spi1_miso */
+			K2G_CORE_IOPAD(0x11b4) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0)	/* spi1_mosi.spi1_mosi */
+		>;
+	};
+
 };
 
 &k2g_pinctrl {
@@ -169,3 +179,29 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&ecap0_pins>;
 };
+
+&spi1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi1_pins>;
+	status = "okay";
+
+	spi_nor: flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <5000000>;
+		m25p,fast-read;
+		reg = <0>;
+
+		partition@0 {
+			label = "u-boot-spl";
+			reg = <0x0 0x100000>;
+			read-only;
+		};
+
+		partition@1 {
+			label = "misc";
+			reg = <0x100000 0xf00000>;
+		};
+	};
+};