ARM: dts: pxa: add pxa25x .dtsi file

This file describes pxa25x SoCs. Not all devices are listed yet, only
the subset which was already tested with a lubbock board.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>

arch/arm/boot/dts/pxa25x.dtsi

+/*
+ * Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#include "pxa2xx.dtsi"
+#include "dt-bindings/clock/pxa-clock.h"
+
+/ {
+	model = "Marvell PXA25x family SoC";
+	compatible = "marvell,pxa250";
+
+	clocks {
+	       /*
+		* The muxing of external clocks/internal dividers for osc* clock
+		* sources has been hidden under the carpet by now.
+		*/
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		clks: pxa2xx_clks@41300004 {
+			compatible = "marvell,pxa250-core-clocks";
+			#clock-cells = <1>;
+			status = "okay";
+		};
+
+		/* timer oscillator */
+		clktimer: oscillator {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency  = <3686400>;
+			clock-output-names = "ostimer";
+		};
+	};
+
+	pxabus {
+		pdma: dma-controller@40000000 {
+			compatible = "marvell,pdma-1.0";
+			reg = <0x40000000 0x10000>;
+			interrupts = <25>;
+			#dma-channels = <16>;
+			#dma-cells = <2>;
+			#dma-requests = <40>;
+			status = "okay";
+		};
+
+		pxairq: interrupt-controller@40d00000 {
+			marvell,intc-priority;
+			marvell,intc-nr-irqs = <32>;
+		};
+
+		pinctrl: pinctrl@40e00000 {
+			reg = <0x40e00054 0x20 0x40e0000c 0xc 0x40e0010c 4
+			       0x40f00020 0x10>;
+			compatible = "marvell,pxa25x-pinctrl";
+		};
+
+		gpio: gpio@40e00000 {
+			compatible = "intel,pxa25x-gpio";
+			gpio-ranges = <&pinctrl 0 0 84>;
+			clocks = <&clks CLK_NONE>;
+		};
+
+		pwm0: pwm@40b00000 {
+			compatible = "marvell,pxa250-pwm";
+			reg = <0x40b00000 0x10>;
+			#pwm-cells = <1>;
+			clocks = <&clks CLK_PWM0>;
+		};
+
+		pwm1: pwm@40b00010 {
+			compatible = "marvell,pxa250-pwm";
+			reg = <0x40b00010 0x10>;
+			#pwm-cells = <1>;
+			clocks = <&clks CLK_PWM1>;
+		};
+	};
+
+	timer@40a00000 {
+		compatible = "marvell,pxa-timer";
+		reg = <0x40a00000 0x20>;
+		interrupts = <26>;
+		clocks = <&clktimer>;
+		status = "okay";
+	};
+};