ARM: atmel: add sama5d4 xplained ultra board support

The code for this board supports following features:
  - Boot media support: NAND flash/SD card/SPI flash
  - Support LCD display (optional, disabled by default)
  - 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/board/atmel/sama5d4_xplained/Kconfig b/board/atmel/sama5d4_xplained/Kconfig
new file mode 100644
index 0000000..f6440c0
--- /dev/null
+++ b/board/atmel/sama5d4_xplained/Kconfig
@@ -0,0 +1,18 @@
+if TARGET_SAMA5D4_XPLAINED
+
+config SYS_CPU
+	default "armv7"
+
+config SYS_BOARD
+	default "sama5d4_xplained"
+
+config SYS_VENDOR
+	default "atmel"
+
+config SYS_SOC
+	default "at91"
+
+config SYS_CONFIG_NAME
+	default "sama5d4_xplained"
+
+endif