rockchip: rk322x: add basic soc support

Enable soc support for SPL and U-boot skeleton.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
diff --git a/arch/arm/mach-rockchip/rk322x/syscon_rk322x.c b/arch/arm/mach-rockchip/rk322x/syscon_rk322x.c
new file mode 100644
index 0000000..1b11b8c
--- /dev/null
+++ b/arch/arm/mach-rockchip/rk322x/syscon_rk322x.c
@@ -0,0 +1,22 @@
+/*
+ * (C) Copyright 2017 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <syscon.h>
+#include <asm/arch/clock.h>
+
+static const struct udevice_id rk322x_syscon_ids[] = {
+	{ .compatible = "rockchip,rk3228-grf", .data = ROCKCHIP_SYSCON_GRF },
+	{ .compatible = "rockchip,rk3228-msch", .data = ROCKCHIP_SYSCON_MSCH },
+	{ }
+};
+
+U_BOOT_DRIVER(syscon_rk322x) = {
+	.name = "rk322x_syscon",
+	.id = UCLASS_SYSCON,
+	.of_match = rk322x_syscon_ids,
+};