ARM: atmel: add sama5d4ek board support

The code for this board supports following features:
  - Boot media support: NAND flash/SD card/SPI flash
  - Support LCD display
  - Support ethernet
  - Support USB mass storage

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
diff --git a/arch/arm/cpu/armv7/at91/sama5d4_devices.c b/arch/arm/cpu/armv7/at91/sama5d4_devices.c
new file mode 100644
index 0000000..2708097
--- /dev/null
+++ b/arch/arm/cpu/armv7/at91/sama5d4_devices.c
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2014 Atmel
+ *		      Bo Shen <voice.shen@atmel.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/sama5d4.h>
+
+char *get_cpu_name()
+{
+	unsigned int extension_id = get_extension_chip_id();
+
+	if (cpu_is_sama5d4())
+		switch (extension_id) {
+		case ARCH_EXID_SAMA5D41:
+			return "SAMA5D41";
+		case ARCH_EXID_SAMA5D42:
+			return "SAMA5D42";
+		case ARCH_EXID_SAMA5D43:
+			return "SAMA5D43";
+		case ARCH_EXID_SAMA5D44:
+			return "SAMA5D44";
+		default:
+			return "Unknown CPU type";
+		}
+	else
+		return "Unknown CPU type";
+}