ARM: mach-shmobile: Use DT_MACHINE for KZM9G

Use DT_MACHINE_START() on the sh73a0 based KZM9G board.

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

arch/arm/boot/dts/sh73a0-kzm9g.dts

+/*
+ * Device Tree Source for the KZM-A9-GT 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 = "KZM-A9-GT";
+	compatible = "renesas,kzm9g";
+
+	memory {
+		device_type = "memory";
+		reg = <0x41000000 0x1e800000>;
+	};
+};

arch/arm/mach-shmobile/Kconfig

@@ -102,6 +102,7 @@ config MACH_KZM9G
 	bool "KZM-A9-GT board"
 	depends on ARCH_SH73A0
 	select ARCH_REQUIRE_GPIOLIB
+	select USE_OF
 
 comment "SH-Mobile System Configuration"
 

arch/arm/mach-shmobile/board-kzm9g.c

@@ -443,7 +443,12 @@ static void __init kzm_init(void)
 	platform_add_devices(kzm_devices, ARRAY_SIZE(kzm_devices));
 }
 
-MACHINE_START(KZM9G, "kzm9g")
+static const char *kzm9g_boards_compat_dt[] __initdata = {
+	"renesas,kzm9g",
+	NULL,
+};
+
+DT_MACHINE_START(KZM9G_DT, "kzm9g")
 	.map_io		= sh73a0_map_io,
 	.init_early	= sh73a0_add_early_devices,
 	.nr_irqs	= NR_IRQS_LEGACY,
@@ -451,4 +456,5 @@ MACHINE_START(KZM9G, "kzm9g")
 	.handle_irq	= gic_handle_irq,
 	.init_machine	= kzm_init,
 	.timer		= &shmobile_timer,
+	.dt_compat	= kzm9g_boards_compat_dt,
 MACHINE_END