ARM: shmobile: ape6evm: add DT reference

This patch adds a sample DT-based APE6EVM "reference" implementation. The
use of platform-specific C-code should be avoided with this configuration
as much as possible.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index dd80f21..ad28f91 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -83,6 +83,17 @@
 	depends on ARCH_R8A73A4
 	select USE_OF
 
+config MACH_APE6EVM_REFERENCE
+	bool "APE6EVM board - Reference Device Tree Implementation"
+	depends on ARCH_R8A73A4
+	select USE_OF
+	---help---
+	   Use reference implementation of APE6EVM board support
+	   which makes a greater use of device tree at the expense
+	   of not supporting a number of devices.
+
+	   This is intended to aid developers
+
 config MACH_MACKEREL
 	bool "mackerel board"
 	depends on ARCH_SH7372