/*
   * 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_RST_GLOBAL_WARM_SW_MASK,
  				AM33XX_RST_GLOBAL_WARM_SW_MASK,
  				AM33XX_PRM_DEVICE_MOD,
  				AM33XX_PRM_RSTCTRL_OFFSET);
  
  	/* OCP barrier */
  	(void)am33xx_prm_read_reg(AM33XX_PRM_DEVICE_MOD,
  				  AM33XX_PRM_RSTCTRL_OFFSET);
  }