rockchip: rk3188: Add Radxa Rock board

The Rock is a RK3188 based single board computer by Radxa.
Currently it still relies on the proprietary DDR init and
cannot use the generic SPL, but at least is able to boot
a linux kernel and system up to a regular login prompt.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
Fix sort order in defconfig, enable CONFIG_SPL_TINY_MEMSET:
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/board/radxa/rock/Kconfig b/board/radxa/rock/Kconfig
new file mode 100644
index 0000000..855b9b6
--- /dev/null
+++ b/board/radxa/rock/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_ROCK
+
+config SYS_BOARD
+	default "rock"
+
+config SYS_VENDOR
+	default "radxa"
+
+config SYS_CONFIG_NAME
+	default "rock"
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+
+endif
diff --git a/board/radxa/rock/MAINTAINERS b/board/radxa/rock/MAINTAINERS
new file mode 100644
index 0000000..c5f59c0
--- /dev/null
+++ b/board/radxa/rock/MAINTAINERS
@@ -0,0 +1,6 @@
+RADXA_ROCK
+M:	Heiko Stuebner <heiko@sntech.de>
+S:	Maintained
+F:	board/radxa/rock
+F:	include/configs/rock.h
+F:	configs/rock_defconfig
diff --git a/board/radxa/rock/Makefile b/board/radxa/rock/Makefile
new file mode 100644
index 0000000..fe94b60
--- /dev/null
+++ b/board/radxa/rock/Makefile
@@ -0,0 +1,7 @@
+#
+# (C) Copyright 2015 Heiko Stuebner
+#
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+obj-y	+= rock.o
diff --git a/board/radxa/rock/rock.c b/board/radxa/rock/rock.c
new file mode 100644
index 0000000..5119e95
--- /dev/null
+++ b/board/radxa/rock/rock.c
@@ -0,0 +1,7 @@
+/*
+ * (C) Copyright 2015 Google, Inc
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>