[PATCH] N900: add device tree

[pavel@ucw.cz (Pavel Machek)]

This adds device tree with neccessary support to boot with functional
video (on both emulator and real N900 device).

Signed-off-by: Pavel Machek <pavel@ucw.cz>

--- linux-delme-clean//arch/arm/boot/dts/Makefile	2013-07-01 21:51:00.000000000 +0200
+++ linux-delme/arch/arm/boot/dts/Makefile	2013-07-01 22:53:06.000000000 +0200
@@ -141,6 +141,7 @@
 	omap3-devkit8000.dtb \
 	omap3-beagle-xm.dtb \
 	omap3-evm.dtb \
+	omap3-n900.dtb \
 	omap3-tobi.dtb \
 	omap3-igep0020.dtb \
 	omap3-igep0030.dtb \
--- linux-delme-clean//arch/arm/boot/dts/omap3-n900.dts	1970-01-01 01:00:00.000000000 +0100
+++ linux-delme/arch/arm/boot/dts/omap3-n900.dts	2013-07-01 22:50:21.000000000 +0200
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2013 Pavel Machek <pavel@ucw.cz>
+ * Copyright 2013 Aaro Koskinen <aaro.koskinen@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 (or later) as
+ * published by the Free Software Foundation.
+ */
+
+/dts-v1/;
+
+/include/ "omap34xx.dtsi"
+
+/ {
+	model = "Nokia N900";
+	compatible = "nokia,omap3-n900", "ti,omap3";
+
+	cpus {
+		cpu at 0 {
+//			cpu0-supply = <&vcc>;
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x10000000>; /* 256 MB */
+	};
+
+};
+
+&i2c1 {
+	clock-frequency = <2200000>;
+
+	twl: twl at 48 {
+		reg = <0x48>;
+		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
+		interrupt-parent = <&intc>;
+	};
+};
+
+/include/ "twl4030.dtsi"
+
+&twl_gpio {
+	ti,pullups	= <0x0>;
+	ti,pulldowns	= <0x03ff3f>; /* BIT(0..5) | BIT(8..17) */
+};
+
+&i2c2 {
+	clock-frequency = <400000>;
+};
+
+&i2c3 {
+	clock-frequency = <100000>;
+};
+
+&mmc1 {
+	status = "disabled";
+};
+
+&mmc2 {
+	status = "disabled";
+};
+
+&mmc3 {
+	status = "disabled";
+};
+
+&mcspi1 {
+	// For some reason, touchscreen is neccessary for screen to work at 
+	// all on real hw. It works well without it on emulator.
+	//
+	// Also... order in the device tree actually matters here.
+	tsc2005 at 0 {
+		compatible = "tsc2005";
+		spi-max-frequency = <6000000>;
+		reg = <0>;
+	};
+	mipid at 2 {
+		compatible = "acx565akm";
+		spi-max-frequency = <6000000>;
+		reg = <2>;
+		// turbo_mode = 0,
+		// cs_per_word = 0
+	};
+};
+
+/*
+&usb_otg_hs {
+	interface-type = <0>;
+	usb-phy = <&usb2_phy>;
+	mode = <2>;
+	power = <50>;
+};
+*/

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html