hardware.h 1.1 KB

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  1. /*
  2. * arch/arm/mach-lpc32xx/include/mach/hardware.h
  3. *
  4. * Copyright (c) 2005 MontaVista Software, Inc. <source@mvista.com>
  5. *
  6. * This program is free software; you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License as published by
  8. * the Free Software Foundation; either version 2 of the License, or
  9. * (at your option) any later version.
  10. *
  11. * This program is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. * GNU General Public License for more details.
  15. */
  16. #ifndef __ASM_ARCH_HARDWARE_H
  17. #define __ASM_ARCH_HARDWARE_H
  18. /*
  19. * Start of virtual addresses for IO devices
  20. */
  21. #define IO_BASE 0xF0000000
  22. /*
  23. * This macro relies on fact that for all HW i/o addresses bits 20-23 are 0
  24. */
  25. #define IO_ADDRESS(x) IOMEM(((((x) & 0xff000000) >> 4) | ((x) & 0xfffff)) |\
  26. IO_BASE)
  27. #define io_p2v(x) ((void __iomem *) (unsigned long) IO_ADDRESS(x))
  28. #define io_v2p(x) ((((x) & 0x0ff00000) << 4) | ((x) & 0x000fffff))
  29. #endif