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/*
* am33xx-restart.c - Code common to all AM33xx machines.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/reboot.h>
#include "common.h"
#include "prm-regbits-33xx.h"
#include "prm33xx.h"
/**
* am3xx_restart - trigger a software restart of the SoC
* @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c
* @cmd: passed from the userspace program rebooting the system (if provided)
*
* Resets the SoC. For @cmd, see the 'reboot' syscall in
* kernel/sys.c. No return value.
*/
void am33xx_restart(enum reboot_mode mode, const char *cmd)
{
/* TODO: Handle mode and cmd if necessary */
am33xx_prm_rmw_reg_bits(AM33XX_GLOBAL_WARM_SW_RST_MASK,
AM33XX_GLOBAL_WARM_SW_RST_MASK,
AM33XX_PRM_DEVICE_MOD,
AM33XX_PRM_RSTCTRL_OFFSET);
/* OCP barrier */
(void)am33xx_prm_read_reg(AM33XX_PRM_DEVICE_MOD,
AM33XX_PRM_RSTCTRL_OFFSET);
}
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