LXR linux/arch/arm/mach-s3c24xx/simtec-pm.c

   1/* linux/arch/arm/plat-s3c24xx/pm-simtec.c
   2 *
   3 * Copyright 2004 Simtec Electronics
   4 *      Ben Dooks <ben@simtec.co.uk>
   5 *
   6 * http://armlinux.simtec.co.uk/
   7 *
   8 * Power Management helpers for Simtec S3C24XX implementations
   9 *
  10 * This program is free software; you can redistribute it and/or modify
  11 * it under the terms of the GNU General Public License version 2 as
  12 * published by the Free Software Foundation.
  13*/
  14
  15#include <linux/kernel.h>
  16#include <linux/types.h>
  17#include <linux/interrupt.h>
  18#include <linux/list.h>
  19#include <linux/timer.h>
  20#include <linux/init.h>
  21#include <linux/device.h>
  22#include <linux/io.h>
  23
  24#include <asm/mach/arch.h>
  25#include <asm/mach/map.h>
  26
  27#include <mach/hardware.h>
  28
  29#include <mach/map.h>
  30#include <mach/regs-gpio.h>
  31
  32#include <asm/mach-types.h>
  33
  34#include <plat/pm.h>
  35
  36#include "regs-mem.h"
  37
  38#define COPYRIGHT ", Copyright 2005 Simtec Electronics"
  39
  40/* pm_simtec_init
  41 *
  42 * enable the power management functions
  43*/
  44
  45static __init int pm_simtec_init(void)
  46{
  47        unsigned long gstatus4;
  48
  49        /* check which machine we are running on */
  50
  51        if (!machine_is_bast() && !machine_is_vr1000() &&
  52            !machine_is_anubis() && !machine_is_osiris() &&
  53            !machine_is_aml_m5900())
  54                return 0;
  55
  56        printk(KERN_INFO "Simtec Board Power Management" COPYRIGHT "\n");
  57
  58        gstatus4  = (__raw_readl(S3C2410_BANKCON7) & 0x3) << 30;
  59        gstatus4 |= (__raw_readl(S3C2410_BANKCON6) & 0x3) << 28;
  60        gstatus4 |= (__raw_readl(S3C2410_BANKSIZE) & S3C2410_BANKSIZE_MASK);
  61
  62        __raw_writel(gstatus4, S3C2410_GSTATUS4);
  63
  64        return s3c_pm_init();
  65}
  66
  67arch_initcall(pm_simtec_init);
  68