u-boot/arch/arm/mach-stm32mp/cmd_poweroff.c

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// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
/*
* Copyright (C) 2019, STMicroelectronics - All Rights Reserved
*/
#include <common.h>
#include <command.h>
#include <sysreset.h>
int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int ret;
puts("poweroff ...\n");
mdelay(100);
ret = sysreset_walk(SYSRESET_POWER);
if (ret == -EINPROGRESS)
mdelay(1000);
/*NOTREACHED when power off*/
return CMD_RET_FAILURE;
}