1 files changed, 46 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/sysreset/sysreset_rockchip.c b/roms/u-boot/drivers/sysreset/sysreset_rockchip.c
new file mode 100644
index 000000000..0fc6b683f
--- /dev/null
+++ b/roms/u-boot/drivers/sysreset/sysreset_rockchip.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * (C) Copyright 2017 Rockchip Electronics Co., Ltd
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <sysreset.h>
+#include <asm/io.h>
+#include <asm/arch-rockchip/clock.h>
+#include <asm/arch-rockchip/cru_rk3328.h>
+#include <asm/arch-rockchip/hardware.h>
+#include <linux/err.h>
+
+int rockchip_sysreset_request(struct udevice *dev, enum sysreset_t type)
+{
+	struct sysreset_reg *offset = dev_get_priv(dev);
+	unsigned long cru_base = (unsigned long)rockchip_get_cru();
+
+	if (IS_ERR_VALUE(cru_base))
+		return (int)cru_base;
+
+	switch (type) {
+	case SYSRESET_WARM:
+		writel(0xeca8, cru_base + offset->glb_srst_snd_value);
+		break;
+	case SYSRESET_COLD:
+		writel(0xfdb9, cru_base + offset->glb_srst_fst_value);
+		break;
+	default:
+		return -EPROTONOSUPPORT;
+	}
+
+	return -EINPROGRESS;
+}
+
+static struct sysreset_ops rockchip_sysreset = {
+	.request	= rockchip_sysreset_request,
+};
+
+U_BOOT_DRIVER(sysreset_rockchip) = {
+	.name	= "rockchip_sysreset",
+	.id	= UCLASS_SYSRESET,
+	.ops	= &rockchip_sysreset,
+};