arch/arm/mach-omap2/omap3-restart.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * omap3-restart.c - Code common to all OMAP3xxx machines.
   4  *
   5  * Copyright (C) 2009, 2012 Texas Instruments
   6  * Copyright (C) 2010 Nokia Corporation
   7  * Tony Lindgren <tony@atomide.com>
   8  * Santosh Shilimkar <santosh.shilimkar@ti.com>
   9  */
  10 #include <linux/kernel.h>
  11 #include <linux/init.h>
  12 #include <linux/reboot.h>
  13
  14 #include "common.h"
  15 #include "control.h"
  16 #include "prm.h"
  17
  18 /* Global address base setup code */
  19
  20 /**
  21  * omap3xxx_restart - trigger a software restart of the SoC
  22  * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c
  23  * @cmd: passed from the userspace program rebooting the system (if provided)
  24  *
  25  * Resets the SoC.  For @cmd, see the 'reboot' syscall in
  26  * kernel/sys.c.  No return value.
  27  */
  28 void omap3xxx_restart(enum reboot_mode mode, const char *cmd)
  29 {
  30         omap3_ctrl_write_boot_mode((cmd ? (u8)*cmd : 0));
  31         omap_prm_reset_system();
  32 }