From b0b3c86521e0fe4cca3676adfc0b937d77456f9e Mon Sep 17 00:00:00 2001
From: Kever Yang <kever.yang@rock-chips.com>
Date: Fri, 29 Jul 2016 10:35:25 +0800
Subject: rk3399: add basic soc driver

This patch add driver for:
- clock driver including set_rate for cpu, mmc, vop, I2C.
- sysreset driver
- grf syscon driver

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
---
 arch/arm/mach-rockchip/rk3399/reset_rk3399.c | 45 ++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 arch/arm/mach-rockchip/rk3399/reset_rk3399.c

(limited to 'arch/arm/mach-rockchip/rk3399/reset_rk3399.c')

diff --git a/arch/arm/mach-rockchip/rk3399/reset_rk3399.c b/arch/arm/mach-rockchip/rk3399/reset_rk3399.c
new file mode 100644
index 0000000000..9a555464c6
--- /dev/null
+++ b/arch/arm/mach-rockchip/rk3399/reset_rk3399.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/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/cru_rk3399.h>
+#include <asm/arch/hardware.h>
+#include <linux/err.h>
+
+int rk3399_sysreset_request(struct udevice *dev, enum sysreset_t type)
+{
+	struct rk3399_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 rk3399_sysreset = {
+	.request	= rk3399_sysreset_request,
+};
+
+U_BOOT_DRIVER(sysreset_rk3399) = {
+	.name	= "rk3399_sysreset",
+	.id	= UCLASS_SYSRESET,
+	.ops	= &rk3399_sysreset,
+};
-- 
cgit