ARM64: rockchip: add support for rk3399 SoC based evb

RK3399 is a SoC from Rockchip with dual-core Cortex-A72
and quad-core Cortex-A53 CPU. It supports two USB3.0
type-C ports and two USB2.0 EHCI ports. Other interfaces
are very much like RK3288, the DRAM are 32bit width address
and support address from 0 to 4GB-128MB range.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/include/configs/evb_rk3399.h b/include/configs/evb_rk3399.h
new file mode 100644
index 0000000..047850a
--- /dev/null
+++ b/include/configs/evb_rk3399.h
@@ -0,0 +1,26 @@
+/*
+ * (C) Copyright 2016 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#ifndef __EVB_RK3399_H
+#define __EVB_RK3399_H
+
+#include <configs/rk3399_common.h>
+
+#define CONFIG_ENV_IS_IN_MMC
+#define CONFIG_SYS_MMC_ENV_DEV 0
+/*
+ * SPL @ 32k for ~36k
+ * ENV @ 96k
+ * u-boot @ 128K
+ */
+#define CONFIG_ENV_OFFSET (96 * 1024)
+
+#define SDRAM_BANK_SIZE			(2UL << 30)
+
+#define CONFIG_SYS_WHITE_ON_BLACK
+#define CONFIG_CONSOLE_SCROLL_LINES		10
+
+#endif