linux-kernel - [PATCH v1 2/2] arm: dts: mt2701: add nor flash node

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Date:   Fri, 13 Jan 2017 15:13:29 +0800
From:   Guochun Mao <guochun.mao@...iatek.com>
To:     David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>
CC:     Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Cyrille Pitchen <cyrille.pitchen@...el.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Russell King <linux@...linux.org.uk>,
        <linux-mtd@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Guochun Mao <guochun.mao@...iatek.com>
Subject: [PATCH v1 2/2] arm: dts: mt2701: add nor flash node

Add Mediatek nor flash node.

Signed-off-by: Guochun Mao <guochun.mao@...iatek.com>
---
 arch/arm/boot/dts/mt2701-evb.dts |   25 +++++++++++++++++++++++++
 arch/arm/boot/dts/mt2701.dtsi    |   12 ++++++++++++
 2 files changed, 37 insertions(+)

diff --git a/arch/arm/boot/dts/mt2701-evb.dts b/arch/arm/boot/dts/mt2701-evb.dts
index 082ca88..85e5ae8 100644
--- a/arch/arm/boot/dts/mt2701-evb.dts
+++ b/arch/arm/boot/dts/mt2701-evb.dts
@@ -24,6 +24,31 @@
 	};
 };
 
+&nor_flash {
+	pinctrl-names = "default";
+	pinctrl-0 = <&nor_pins_default>;
+	status = "okay";
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+	};
+};
+
+&pio {
+	nor_pins_default: nor {
+		pins1 {
+			pinmux = <MT2701_PIN_240_EXT_XCS__FUNC_EXT_XCS>,
+				 <MT2701_PIN_241_EXT_SCK__FUNC_EXT_SCK>,
+				 <MT2701_PIN_239_EXT_SDIO0__FUNC_EXT_SDIO0>,
+				 <MT2701_PIN_238_EXT_SDIO1__FUNC_EXT_SDIO1>,
+				 <MT2701_PIN_237_EXT_SDIO2__FUNC_EXT_SDIO2>,
+				 <MT2701_PIN_236_EXT_SDIO3__FUNC_EXT_SDIO3>;
+			drive-strength = <MTK_DRIVE_4mA>;
+			bias-pull-up;
+		};
+	};
+};
+
 &uart0 {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/mt2701.dtsi b/arch/arm/boot/dts/mt2701.dtsi
index bdf8954..1eefce4 100644
--- a/arch/arm/boot/dts/mt2701.dtsi
+++ b/arch/arm/boot/dts/mt2701.dtsi
@@ -227,6 +227,18 @@
 		status = "disabled";
 	};
 
+	nor_flash: spi@...14000 {
+		compatible = "mediatek,mt2701-nor",
+			     "mediatek,mt8173-nor";
+		reg = <0 0x11014000 0 0xe0>;
+		clocks = <&pericfg CLK_PERI_FLASH>,
+			 <&topckgen CLK_TOP_FLASH_SEL>;
+		clock-names = "spi", "sf";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};
+
 	mmsys: syscon@...00000 {
 		compatible = "mediatek,mt2701-mmsys", "syscon";
 		reg = <0 0x14000000 0 0x1000>;
-- 
1.7.9.5