u-boot/drivers/sysreset/sysreset_rk3288.c

48 lines
980 B
C
Raw Normal View History

/*
* (C) Copyright 2015 Google, Inc
*
* 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_rk3288.h>
#include <asm/arch/hardware.h>
#include <linux/err.h>
int rk3288_sysreset_request(struct udevice *dev, enum sysreset_t type)
{
struct rk3288_cru *cru = rockchip_get_cru();
if (IS_ERR(cru))
return PTR_ERR(cru);
switch (type) {
case SYSRESET_WARM:
rk_clrreg(&cru->cru_mode_con, 0xffff);
writel(0xeca8, &cru->cru_glb_srst_snd_value);
break;
case SYSRESET_COLD:
rk_clrreg(&cru->cru_mode_con, 0xffff);
writel(0xfdb9, &cru->cru_glb_srst_fst_value);
break;
default:
return -EPROTONOSUPPORT;
}
return -EINPROGRESS;
}
static struct sysreset_ops rk3288_sysreset = {
.request = rk3288_sysreset_request,
};
U_BOOT_DRIVER(sysreset_rk3288) = {
.name = "rk3288_sysreset",
.id = UCLASS_SYSRESET,
.ops = &rk3288_sysreset,
};