ARM: shmobile: porter: add QSPI DT support

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@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r8a7791-porter.dts b/arch/arm/boot/dts/r8a7791-porter.dts
index b7fa8261e02feb1716f586a94b2b9ee154f4ce0c..4eebc67773d28a6e9c80f7c66504fecc9127a201 100644 (file)
--- 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@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@0 {
+                       label = "loader_prg";
+                       reg = <0x00000000 0x00040000>;
+                       read-only;
+               };
+               partition@40000 {
+                       label = "user_prg";
+                       reg = <0x00040000 0x00400000>;
+                       read-only;
+               };
+               partition@440000 {
+                       label = "flash_fs";
+                       reg = <0x00440000 0x03bc0000>;
+               };
+       };
+};
+
 &i2c2 {
        pinctrl-0 = <&i2c2_pins>;
        pinctrl-names = "default";