linux-kernel - [PATCH v2 1/3] ARM: dts: r8a7742-iwg21d-q7: Add SPI NOR support

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Message-Id: <20200907155541.2011-2-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date:   Mon,  7 Sep 2020 16:55:39 +0100
From:   Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
To:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        linux-renesas-soc@...r.kernel.org, devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Biju Das <biju.das.jz@...renesas.com>,
        Prabhakar <prabhakar.csengg@...il.com>
Subject: [PATCH v2 1/3] 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@...renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@...esas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
 arch/arm/boot/dts/r8a7742-iwg21d-q7.dts | 31 +++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
index 73300ab46ea6..818f1a850c62 100644
--- a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
+++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
@@ -220,6 +220,32 @@
 	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";
@@ -266,6 +292,11 @@
 		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";
-- 
2.17.1