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kernel/linux-imx6_3.14.28/arch/arm/mach-spear/restart.c 1015 Bytes
6b13f685e   김민수   BSP 최초 추가
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  /*
   * arch/arm/plat-spear/restart.c
   *
   * SPEAr platform specific restart functions
   *
   * Copyright (C) 2009 ST Microelectronics
   * Viresh Kumar <viresh.linux@gmail.com>
   *
   * This file is licensed under the terms of the GNU General Public
   * License version 2. This program is licensed "as is" without any
   * warranty of any kind, whether express or implied.
   */
  #include <linux/io.h>
  #include <linux/amba/sp810.h>
  #include <linux/reboot.h>
  #include <asm/system_misc.h>
  #include <mach/spear.h>
  #include "generic.h"
  
  #define SPEAR13XX_SYS_SW_RES			(VA_MISC_BASE + 0x204)
  void spear_restart(enum reboot_mode mode, const char *cmd)
  {
  	if (mode == REBOOT_SOFT) {
  		/* software reset, Jump into ROM at address 0 */
  		soft_restart(0);
  	} else {
  		/* hardware reset, Use on-chip reset capability */
  #ifdef CONFIG_ARCH_SPEAR13XX
  		writel_relaxed(0x01, SPEAR13XX_SYS_SW_RES);
  #endif
  #if defined(CONFIG_ARCH_SPEAR3XX) || defined(CONFIG_ARCH_SPEAR6XX)
  		sysctl_soft_reset((void __iomem *)VA_SPEAR_SYS_CTRL_BASE);
  #endif
  	}
  }