sysreset_rockchip.c
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/*
* (C) Copyright 2017 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_rk3328.h>
#include <asm/arch/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,
};