u-boot/arch/arm/mach-npcm/npcm8xx/reset.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2022 Nuvoton Technology Corp.
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/gcr.h>
#include <asm/arch/rst.h>
void reset_cpu(void)
{
/* Generate a watchdog0 reset */
writel(WTCR_WTR | WTCR_WTRE | WTCR_WTE, WTCR0_REG);
while (1)
;
}
void reset_misc(void)
{
struct npcm_gcr *gcr = (struct npcm_gcr *)NPCM_GCR_BA;
clrbits_le32(&gcr->intcr2, INTCR2_WDC);
}
int npcm_get_reset_status(void)
{
struct npcm_gcr *gcr = (struct npcm_gcr *)NPCM_GCR_BA;
u32 val;
val = readl(&gcr->ressr);
if (!val)
val = readl(&gcr->intcr2);
return val & RST_STS_MASK;
}