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/*
* (C) Copyright 2015 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <syscon.h>
#include <sysreset.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/cru_rk3188.h>
#include <asm/arch/grf_rk3188.h>
#include <asm/arch/hardware.h>
#include <linux/err.h>
int rk3188_sysreset_request(struct udevice *dev, enum sysreset_t type)
{
struct rk3188_cru *cru = rockchip_get_cru();
struct rk3188_grf *grf;
if (IS_ERR(cru))
return PTR_ERR(cru);
switch (type) {
case SYSRESET_WARM:
grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
if (IS_ERR(grf))
return -EPROTONOSUPPORT;
/*
* warm-reset keeps the remap value,
* so make sure it's disabled.
*/
rk_clrsetreg(&grf->soc_con0,
NOC_REMAP_MASK << NOC_REMAP_SHIFT,
0 << NOC_REMAP_SHIFT);
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 rk3188_sysreset = {
.request = rk3188_sysreset_request,
};
U_BOOT_DRIVER(sysreset_rk3188) = {
.name = "rk3188_sysreset",
.id = UCLASS_SYSRESET,
.ops = &rk3188_sysreset,
};
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