rockchip: rk3288: Add a simple syscon driver

Add a driver that provides access to system controllers.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/arm/mach-rockchip/rk3288/Makefile b/arch/arm/mach-rockchip/rk3288/Makefile
index c6663f0..3f9900d 100644 (file)
--- a/arch/arm/mach-rockchip/rk3288/Makefile
+++ b/arch/arm/mach-rockchip/rk3288/Makefile
@@ -5,3 +5,4 @@
 #
 
 obj-y += reset_rk3288.o
+obj-y += syscon_rk3288.o

diff --git a/arch/arm/mach-rockchip/rk3288/syscon_rk3288.c b/arch/arm/mach-rockchip/rk3288/syscon_rk3288.c
new file mode 100644 (file)
index 0000000..c9f7c4e
--- /dev/null
+++ b/arch/arm/mach-rockchip/rk3288/syscon_rk3288.c
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2015 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ *
+ * 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 rk3288_syscon_ids[] = {
+       { .compatible = "rockchip,rk3288-noc", .data = ROCKCHIP_SYSCON_NOC },
+       { .compatible = "rockchip,rk3288-grf", .data = ROCKCHIP_SYSCON_GRF },
+       { .compatible = "rockchip,rk3288-sgrf", .data = ROCKCHIP_SYSCON_SGRF },
+       { .compatible = "rockchip,rk3288-pmu", .data = ROCKCHIP_SYSCON_PMU },
+       { }
+};
+
+U_BOOT_DRIVER(syscon_rk3288) = {
+       .name = "rk3288_syscon",
+       .id = UCLASS_SYSCON,
+       .of_match = rk3288_syscon_ids,
+};