[PATCH 5/7] ARM: shmobile: porter: add QSPI DT support

[Simon Horman]

From: Sergei Shtylyov <sergei.shtylyov at cogentembedded.com>

Define the Porter board dependent part of the QSPI device node.
Add device nodes  for Spansion  S25FL512S SPI flash and the MTD partitions
on it.

This patch is  mostly analogous  to the commit f59838d44835 ("ARM:
shmobile: henninger: add QSPI DT support")  as there are no differences
between the boards in this respect.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov at cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas at verge.net.au>
---
 arch/arm/boot/dts/r8a7791-porter.dts | 38 ++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7791-porter.dts b/arch/arm/boot/dts/r8a7791-porter.dts
index b7fa8261e02f..4eebc67773d2 100644
--- a/arch/arm/boot/dts/r8a7791-porter.dts
+++ b/arch/arm/boot/dts/r8a7791-porter.dts
@@ -110,6 +110,11 @@
 		renesas,function = "sdhi2";
 	};
 
+	qspi_pins: spi0 {
+		renesas,groups = "qspi_ctrl", "qspi_data4";
+		renesas,function = "qspi";
+	};
+
 	i2c2_pins: i2c2 {
 		renesas,groups = "i2c2";
 		renesas,function = "i2c2";
@@ -165,6 +170,39 @@
 	status = "okay";
 };
 
+&qspi {
+	pinctrl-0 = <&qspi_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+
+	flash at 0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "spansion,s25fl512s", "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <30000000>;
+		spi-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+		m25p,fast-read;
+
+		partition at 0 {
+			label = "loader_prg";
+			reg = <0x00000000 0x00040000>;
+			read-only;
+		};
+		partition at 40000 {
+			label = "user_prg";
+			reg = <0x00040000 0x00400000>;
+			read-only;
+		};
+		partition at 440000 {
+			label = "flash_fs";
+			reg = <0x00440000 0x03bc0000>;
+		};
+	};
+};
+
 &i2c2 {
 	pinctrl-0 = <&i2c2_pins>;
 	pinctrl-names = "default";
-- 
2.1.4