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kernel/linux-imx6_3.14.28/arch/arm/mach-s3c24xx/simtec-pm.c 1.52 KB
6b13f685e   김민수   BSP 최초 추가
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  /* linux/arch/arm/plat-s3c24xx/pm-simtec.c
   *
   * Copyright 2004 Simtec Electronics
   *	Ben Dooks <ben@simtec.co.uk>
   *
   * http://armlinux.simtec.co.uk/
   *
   * Power Management helpers for Simtec S3C24XX implementations
   *
   * 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/types.h>
  #include <linux/interrupt.h>
  #include <linux/list.h>
  #include <linux/timer.h>
  #include <linux/init.h>
  #include <linux/device.h>
  #include <linux/io.h>
  
  #include <asm/mach/arch.h>
  #include <asm/mach/map.h>
  
  #include <mach/hardware.h>
  
  #include <mach/map.h>
  #include <mach/regs-gpio.h>
  
  #include <asm/mach-types.h>
  
  #include <plat/pm.h>
  
  #include "regs-mem.h"
  
  #define COPYRIGHT ", Copyright 2005 Simtec Electronics"
  
  /* pm_simtec_init
   *
   * enable the power management functions
  */
  
  static __init int pm_simtec_init(void)
  {
  	unsigned long gstatus4;
  
  	/* check which machine we are running on */
  
  	if (!machine_is_bast() && !machine_is_vr1000() &&
  	    !machine_is_anubis() && !machine_is_osiris() &&
  	    !machine_is_aml_m5900())
  		return 0;
  
  	printk(KERN_INFO "Simtec Board Power Management" COPYRIGHT "
  ");
  
  	gstatus4  = (__raw_readl(S3C2410_BANKCON7) & 0x3) << 30;
  	gstatus4 |= (__raw_readl(S3C2410_BANKCON6) & 0x3) << 28;
  	gstatus4 |= (__raw_readl(S3C2410_BANKSIZE) & S3C2410_BANKSIZE_MASK);
  
  	__raw_writel(gstatus4, S3C2410_GSTATUS4);
  
  	return s3c_pm_init();
  }
  
  arch_initcall(pm_simtec_init);