release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/plat-stmp3xxx/include/mach/system.h

   1 /*
   2  * Copyright (C) 2005 Sigmatel Inc
   3  *
   4  * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
   5  * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
   6  */
   7
   8 /*
   9  * The code contained herein is licensed under the GNU General Public
  10  * License. You may obtain a copy of the GNU General Public License
  11  * Version 2 or later at the following locations:
  12  *
  13  * http://www.opensource.org/licenses/gpl-license.html
  14  * http://www.gnu.org/copyleft/gpl.html
  15  */
  16 #ifndef __ASM_ARCH_SYSTEM_H
  17 #define __ASM_ARCH_SYSTEM_H
  18
  19 #include <asm/proc-fns.h>
  20 #include <mach/platform.h>
  21 #include <mach/regs-clkctrl.h>
  22 #include <mach/regs-power.h>
  23
  24 static inline void arch_idle(void)
  25 {
  26         /*
  27          * This should do all the clock switching
  28          * and wait for interrupt tricks
  29          */
  30
  31         cpu_do_idle();
  32 }
  33
  34 static inline void arch_reset(char mode, const char *cmd)
  35 {
  36         /* Set BATTCHRG to default value */
  37         __raw_writel(0x00010000, REGS_POWER_BASE + HW_POWER_CHARGE);
  38
  39         /* Set MINPWR to default value   */
  40         __raw_writel(0, REGS_POWER_BASE + HW_POWER_MINPWR);
  41
  42         /* Reset digital side of chip (but not power or RTC) */
  43         __raw_writel(BM_CLKCTRL_RESET_DIG,
  44                         REGS_CLKCTRL_BASE + HW_CLKCTRL_RESET);
  45
  46         /* Should not return */
  47 }
  48
  49 #endif