rockchip: rk3328: add sysreset driver
Add rk3328 sysreset driver.
Signed-off-by: William Zhang <william.zhang@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/sysreset/Makefile b/drivers/sysreset/Makefile
index e00b0f3..49b8bb6 100644
--- a/drivers/sysreset/Makefile
+++ b/drivers/sysreset/Makefile
@@ -11,6 +11,7 @@
endif
obj-$(CONFIG_ROCKCHIP_RK3188) += sysreset_rk3188.o
obj-$(CONFIG_ROCKCHIP_RK3288) += sysreset_rk3288.o
+obj-$(CONFIG_ROCKCHIP_RK3328) += sysreset_rk3328.o
obj-$(CONFIG_ROCKCHIP_RK3399) += sysreset_rk3399.o
obj-$(CONFIG_SANDBOX) += sysreset_sandbox.o
obj-$(CONFIG_ARCH_SNAPDRAGON) += sysreset_snapdragon.o
diff --git a/drivers/sysreset/sysreset_rk3328.c b/drivers/sysreset/sysreset_rk3328.c
new file mode 100644
index 0000000..7b9af09
--- /dev/null
+++ b/drivers/sysreset/sysreset_rk3328.c
@@ -0,0 +1,45 @@
+/*
+ * (C) Copyright 2016 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <sysreset.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/cru_rk3328.h>
+#include <asm/arch/hardware.h>
+#include <asm/io.h>
+#include <linux/err.h>
+
+int rk3328_sysreset_request(struct udevice *dev, enum sysreset_t type)
+{
+ struct rk3328_cru *cru = rockchip_get_cru();
+
+ if (IS_ERR(cru))
+ return PTR_ERR(cru);
+ switch (type) {
+ case SYSRESET_WARM:
+ writel(0xeca8, &cru->glb_srst_snd_value);
+ break;
+ case SYSRESET_COLD:
+ writel(0xfdb9, &cru->glb_srst_fst_value);
+ break;
+ default:
+ return -EPROTONOSUPPORT;
+ }
+
+ return -EINPROGRESS;
+}
+
+static struct sysreset_ops rk3328_sysreset = {
+ .request = rk3328_sysreset_request,
+};
+
+U_BOOT_DRIVER(sysreset_rk3328) = {
+ .name = "rk3328_sysreset",
+ .id = UCLASS_SYSRESET,
+ .ops = &rk3328_sysreset,
+};