system.h 1.4 KB

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  1. /*
  2. * arch/arm/mach-versatile/include/mach/system.h
  3. *
  4. * Copyright (C) 2003 ARM Limited
  5. * Copyright (C) 2000 Deep Blue Solutions Ltd
  6. *
  7. * This program is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU General Public License as published by
  9. * the Free Software Foundation; either version 2 of the License, or
  10. * (at your option) any later version.
  11. *
  12. * This program is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. * GNU General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU General Public License
  18. * along with this program; if not, write to the Free Software
  19. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20. */
  21. #ifndef __ASM_ARCH_SYSTEM_H
  22. #define __ASM_ARCH_SYSTEM_H
  23. #include <linux/io.h>
  24. #include <mach/hardware.h>
  25. #include <mach/platform.h>
  26. static inline void arch_idle(void)
  27. {
  28. /*
  29. * This should do all the clock switching
  30. * and wait for interrupt tricks
  31. */
  32. cpu_do_idle();
  33. }
  34. static inline void arch_reset(char mode, const char *cmd)
  35. {
  36. u32 val;
  37. val = __raw_readl(IO_ADDRESS(VERSATILE_SYS_RESETCTL)) & ~0x7;
  38. val |= 0x105;
  39. __raw_writel(0xa05f, IO_ADDRESS(VERSATILE_SYS_LOCK));
  40. __raw_writel(val, IO_ADDRESS(VERSATILE_SYS_RESETCTL));
  41. __raw_writel(0, IO_ADDRESS(VERSATILE_SYS_LOCK));
  42. }
  43. #endif