arm/mach-omap2/omap3-restart.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * omap3-restart.c - Code common to all OMAP3xxx machines.
0004  *
0005  * Copyright (C) 2009, 2012 Texas Instruments
0006  * Copyright (C) 2010 Nokia Corporation
0007  * Tony Lindgren <tony@atomide.com>
0008  * Santosh Shilimkar <santosh.shilimkar@ti.com>
0009  */
0010 #include <linux/kernel.h>
0011 #include <linux/init.h>
0012 #include <linux/reboot.h>
0013
0014 #include "common.h"
0015 #include "control.h"
0016 #include "prm.h"
0017
0018 /* Global address base setup code */
0019
0020 /**
0021  * omap3xxx_restart - trigger a software restart of the SoC
0022  * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c
0023  * @cmd: passed from the userspace program rebooting the system (if provided)
0024  *
0025  * Resets the SoC.  For @cmd, see the 'reboot' syscall in
0026  * kernel/sys.c.  No return value.
0027  */
0028 void omap3xxx_restart(enum reboot_mode mode, const char *cmd)
0029 {
0030     omap3_ctrl_write_boot_mode((cmd ? (u8)*cmd : 0));
0031     omap_prm_reset_system();
0032 }