rockchip: Add core SoC start-up code

Add code for starting up U-Boot SPL and U-Boot proper. This is generic and
makes use of devices provided by the board- or SoC-specific code.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index cd88df4..194fb7b 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -829,6 +829,14 @@
 	bool "Support STM32F429 Discovery"
 	select CPU_V7M
 
+config ARCH_ROCKCHIP
+	bool "Support Rockchip SoCs"
+	select SUPPORT_SPL
+	select SPL
+	select OF_CONTROL
+	select CPU_V7
+	select DM
+
 endchoice
 
 source "arch/arm/mach-at91/Kconfig"
@@ -863,6 +871,8 @@
 
 source "arch/arm/cpu/armv7/rmobile/Kconfig"
 
+source "arch/arm/mach-rockchip/Kconfig"
+
 source "arch/arm/cpu/armv7/s5pc1xx/Kconfig"
 
 source "arch/arm/mach-socfpga/Kconfig"