ARM: dts: r8a7742-iwg21d-q7: Add SPI NOR support

Add support for the SPI NOR device which is connected to MSIOF0 interface
on the iWave RainboW-G21d-q7 board.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Link: https://lore.kernel.org/r/20200907155541.2011-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
index df85e51..a88858e 100644 (file)
--- a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
+++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
@@ -141,6 +141,32 @@
        status = "okay";
 };
 
+&msiof0 {
+       pinctrl-0 = <&msiof0_pins>;
+       pinctrl-names = "default";
+       cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
+
+       status = "okay";
+
+       flash1: flash@0 {
+               compatible = "sst,sst25vf016b", "jedec,spi-nor";
+               reg = <0>;
+               spi-max-frequency = <50000000>;
+               m25p,fast-read;
+
+               partitions {
+                       compatible = "fixed-partitions";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       partition@0 {
+                               label = "user";
+                               reg = <0x00000000 0x00200000>;
+                       };
+               };
+       };
+};
+
 &pci0 {
        pinctrl-0 = <&usb0_pins>;
        pinctrl-names = "default";
@@ -182,6 +208,11 @@
                function = "i2c2";
        };
 
+       msiof0_pins: msiof0 {
+               groups = "msiof0_clk", "msiof0_sync", "msiof0_tx", "msiof0_rx";
+               function = "msiof0";
+       };
+
        scifa2_pins: scifa2 {
                groups = "scifa2_data_c";
                function = "scifa2";