linux-kernel - [RFC PATCH v2 16/16] ARM: dts: add AM33XX SPI support

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Date:	Thu, 11 Oct 2012 15:04:41 -0400
From:	Matt Porter <mporter@...com>
To:	Tony Lindgren <tony@...mide.com>, Sekhar Nori <nsekhar@...com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Benoit Cousson <b-cousson@...com>,
	Russell King <linux@....linux.org.uk>,
	Vinod Koul <vinod.koul@...el.com>,
	Rob Landley <rob@...dley.net>, Chris Ball <cjb@...top.org>
Cc:	Devicetree Discuss <devicetree-discuss@...ts.ozlabs.org>,
	Linux OMAP List <linux-omap@...r.kernel.org>,
	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
	Linux DaVinci Kernel List 
	<davinci-linux-open-source@...ux.davincidsp.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Documentation List <linux-doc@...r.kernel.org>,
	Linux MMC List <linux-mmc@...r.kernel.org>,
	Linux SPI Devel List 
	<spi-devel-general@...ts.sourceforge.net>,
	Arnd Bergmann <arnd@...db.de>, Dan Williams <djbw@...com>,
	Rob Herring <rob.herring@...xeda.com>
Subject: [RFC PATCH v2 16/16] ARM: dts: add AM33XX SPI support

Adds AM33XX SPI support to the am33xx.dtsi and the BeagleBone
dts.

Signed-off-by: Matt Porter <mporter@...com>
---
 arch/arm/boot/dts/am335x-bone.dts |   17 +++++++++++++++
 arch/arm/boot/dts/am33xx.dtsi     |   43 +++++++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index 5510979..23edfd8 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -18,6 +18,17 @@
 		reg = <0x80000000 0x10000000>; /* 256 MB */
 	};
 
+	am3358_pinmux: pinmux@...10800 {
+		spi1_pins: pinmux_spi1_pins {
+			pinctrl-single,pins = <
+				0x190 0x13	/* mcasp0_aclkx.spi1_sclk, OUTPUT_PULLUP | MODE3 */
+				0x194 0x33	/* mcasp0_fsx.spi1_d0, INPUT_PULLUP | MODE3 */
+				0x198 0x13	/* mcasp0_axr0.spi1_d1, OUTPUT_PULLUP | MODE3 */
+				0x19c 0x13	/* mcasp0_ahclkr.spi1_cs0, OUTPUT_PULLUP | MODE3 */
+			>;
+		};
+	};
+
 	ocp {
 		uart1: serial@...09000 {
 			status = "okay";
@@ -84,3 +95,9 @@
 &mmc1 {
 	vmmc-supply = <&ldo3_reg>;
 };
+
+&spi1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi1_pins>;
+};
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index ef8e105..854235e 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -40,6 +40,15 @@
 		};
 	};
 
+	am3358_pinmux: pinmux@...10800 {
+		compatible = "pinctrl-single";
+		reg = <0x44e10800 0x0238>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-single,register-width = <32>;
+		pinctrl-single,function-mask = <0x7f>;
+	};
+
 	/*
 	 * XXX: Use a flat representation of the AM33XX interconnect.
 	 * The real AM33XX interconnect network is quite complex.Since
@@ -260,6 +269,40 @@
 			status = "disabled";
 		};
 
+		spi0: spi@...30000 {
+			compatible = "ti,omap4-mcspi";
+			ti,hwmods = "spi0";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x48030000 0x400>;
+			interrupt-parent = <&intc>;
+			interrupt = <65>;
+			dmas = <&edma 16
+				&edma 17
+				&edma 18
+				&edma 19>;
+			dma-names = "tx0", "rx0", "tx1", "rx1";
+			ti,spi-num-cs = <2>;
+			status = "disabled";
+		};
+
+		spi1: spi@...a0000 {
+			compatible = "ti,omap4-mcspi";
+			ti,hwmods = "spi1";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x481a0000 0x400>;
+			interrupt-parent = <&intc>;
+			interrupt = <125>;
+			dmas = <&edma 42
+				&edma 43
+				&edma 44
+				&edma 45>;
+			dma-names = "tx0", "rx0", "tx1", "rx1";
+			ti,spi-num-cs = <2>;
+			status = "disabled";
+		};
+
 		wdt2: wdt@...35000 {
 			compatible = "ti,omap3-wdt";
 			ti,hwmods = "wd_timer2";
-- 
1.7.9.5

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