arch/arm/mach-gemini/include/mach/system.h

   1 /*
   2  *  Copyright (C) 2001-2006 Storlink, Corp.
   3  *  Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  */
  10 #ifndef __MACH_SYSTEM_H
  11 #define __MACH_SYSTEM_H
  12
  13 #include <linux/io.h>
  14 #include <mach/hardware.h>
  15 #include <mach/global_reg.h>
  16
  17 static inline void arch_idle(void)
  18 {
  19         /*
  20          * Because of broken hardware we have to enable interrupts or the CPU
  21          * will never wakeup... Acctualy it is not very good to enable
  22          * interrupts here since scheduler can miss a tick, but there is
  23          * no other way around this. Platforms that needs it for power saving
  24          * should call enable_hlt() in init code, since by default it is
  25          * disabled.
  26          */
  27         local_irq_enable();
  28         cpu_do_idle();
  29 }
  30
  31 static inline void arch_reset(char mode, const char *cmd)
  32 {
  33         __raw_writel(RESET_GLOBAL | RESET_CPU1,
  34                      IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_RESET);
  35 }
  36
  37 #endif /* __MACH_SYSTEM_H */