ARM: mach-shmobile: Use DT_MACHINE for armadillo 800 eva

Use DT_MACHINE_START() on the r8a7740 based armadillo 800 eva board.

Also include a tiny DTS file to describe the board and update the
Kconfig dependencies to select CONFIG_USE_OF.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

arch/arm/boot/dts/r8a7740-armadillo800eva.dts

+/*
+ * Device Tree Source for the armadillo 800 eva board
+ *
+ * Copyright (C) 2012 Renesas Solutions Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/dts-v1/;
+/include/ "skeleton.dtsi"
+
+/ {
+	model = "armadillo 800 eva";
+	compatible = "renesas,armadillo800eva";
+
+	memory {
+		device_type = "memory";
+		reg = <0x40000000 0x20000000>;
+	};
+};

arch/arm/mach-shmobile/Kconfig

@@ -97,6 +97,7 @@ config MACH_ARMADILLO800EVA
 	bool "Armadillo-800 EVA board"
 	depends on ARCH_R8A7740
 	select ARCH_REQUIRE_GPIOLIB
+	select USE_OF
 
 config MACH_MARZEN
 	bool "MARZEN board"

arch/arm/mach-shmobile/board-armadillo800eva.c

@@ -768,11 +768,17 @@ static void __init eva_add_early_devices(void)
 	shmobile_timer.init = eva_earlytimer_init;
 }
 
-MACHINE_START(ARMADILLO800EVA, "armadillo800eva")
+static const char *eva_boards_compat_dt[] __initdata = {
+	"renesas,armadillo800eva",
+	NULL,
+};
+
+DT_MACHINE_START(ARMADILLO800EVA_DT, "armadillo800eva")
 	.map_io		= r8a7740_map_io,
 	.init_early	= eva_add_early_devices,
 	.init_irq	= r8a7740_init_irq,
 	.handle_irq	= shmobile_handle_irq_intc,
 	.init_machine	= eva_init,
 	.timer		= &shmobile_timer,
+	.dt_compat	= eva_boards_compat_dt,
 MACHINE_END