u-boot/arch/arm/mach-bcm283x/reset.c

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/*
* (C) Copyright 2012 Stephen Warren
*
* See file CREDITS for list of people who contributed to this
* project.
*
* SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/wdog.h>
#define RESET_TIMEOUT 10
void reset_cpu(ulong addr)
{
struct bcm2835_wdog_regs *regs =
(struct bcm2835_wdog_regs *)BCM2835_WDOG_PHYSADDR;
uint32_t rstc;
rstc = readl(&regs->rstc);
rstc &= ~BCM2835_WDOG_RSTC_WRCFG_MASK;
rstc |= BCM2835_WDOG_RSTC_WRCFG_FULL_RESET;
writel(BCM2835_WDOG_PASSWORD | RESET_TIMEOUT, &regs->wdog);
writel(BCM2835_WDOG_PASSWORD | rstc, &regs->rstc);
}