[PATCH 4/4] ARM: dts: iwg23s-sbc: Add QSPI flash support

[Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx>]

This commit adds QSPI flash support to the iwg23s board specific
device tree.

Signed-off-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx>
---
 arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts b/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts
index 18d2263..5245a1e 100644
--- a/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts
+++ b/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts
@@ -88,6 +88,11 @@
 		power-source = <1800>;
 	};
 
+	qspi0_pins: qspi0 {
+		groups = "qspi0_ctrl", "qspi0_data2";
+		function = "qspi0";
+	};
+
 	scif1_pins: scif1 {
 		groups = "scif1_data_b";
 		function = "scif1";
@@ -106,6 +111,27 @@
 	};
 };
 
+&qspi0 {
+	pinctrl-0 = <&qspi0_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+
+	/* WARNING - This device contains the bootloader. Handle with care. */
+	flash: flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "issi,is25lp016d", "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <133000000>;
+		spi-tx-bus-width = <1>;
+		spi-rx-bus-width = <1>;
+		m25p,fast-read;
+		spi-cpol;
+		spi-cpha;
+	};
+};
+
 &rwdt {
 	timeout-sec = <60>;
 	status = "okay";
-- 
2.7.4