rockchip: rk3368: Add core start-up code for RK3368

The RK3368 is an octa-core Cortex-A53 SoC from Rockchip.
This adds basic support to chain-load U-Boot from Rockchip's
miniloader.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 6be2ab5..a8d745a 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -51,6 +51,18 @@
 	  and video codec support. Peripherals include Gigabit Ethernet,
 	  USB2 host and OTG, SDIO, I2S, UARTs, SPI, I2C and PWMs.
 
+config ROCKCHIP_RK3368
+	bool "Support Rockchip RK3368"
+	select ARM64
+	select SYS_NS16550
+	help
+	  The Rockchip RK3328 is a ARM-based SoC with a octa-core Cortex-A53.
+	  including NEON and GPU, 512KB L2 cache for big cluster and 256 KB
+	  L2 cache for little cluser, PowerVR G6110 based graphics, one video
+	  output processor supporting LVDS、HDMI、eDP, several DDR3 options
+	  and video codec support. Peripherals include Gigabit Ethernet,
+	  USB2 host and OTG, SDIO, I2S, UARTs, SPI, I2C and PWMs.
+
 config ROCKCHIP_RK3399
 	bool "Support Rockchip RK3399"
 	select ARM64
@@ -94,5 +106,6 @@
 source "arch/arm/mach-rockchip/rk3188/Kconfig"
 source "arch/arm/mach-rockchip/rk3288/Kconfig"
 source "arch/arm/mach-rockchip/rk3328/Kconfig"
+source "arch/arm/mach-rockchip/rk3368/Kconfig"
 source "arch/arm/mach-rockchip/rk3399/Kconfig"
 endif