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/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
new file mode 100644
index 0000000..ab50f4e
--- /dev/null
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -0,0 +1,41 @@
+if ARCH_ROCKCHIP
+
+config ROCKCHIP_RK3288
+	bool "Support Rockchip RK3288"
+	help
+	  The Rockchip RK3288 is a ARM-based SoC with a quad-core Cortex-A17
+	  including NEON and GPU, 1MB L2 cache, Mali-T7 graphics, two
+	  video interfaces supporting HDMI and eDP, several DDR3 options
+	  and video codec support. Peripherals include Gigabit Ethernet,
+	  USB2 host and OTG, SDIO, I2S, UART,s, SPI, I2C and PWMs.
+
+config SYS_MALLOC_F
+	default y
+
+config SYS_MALLOC_F_LEN
+	default 0x800
+
+config SPL_DM
+	default y
+
+config DM_SERIAL
+	default y
+
+config DM_SPI
+	default y
+
+config DM_SPI_FLASH
+	default y
+
+config DM_I2C
+	default y
+
+config DM_GPIO
+	default y
+
+config ROCKCHIP_SERIAL
+	default y
+
+source "arch/arm/mach-rockchip/rk3288/Kconfig"
+
+endif