hardware.h 1.4 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. /*
  3. * arch/arm/mach-sa1100/include/mach/hardware.h
  4. *
  5. * Copyright (C) 1998 Nicolas Pitre <[email protected]>
  6. *
  7. * This file contains the hardware definitions for SA1100 architecture
  8. *
  9. * 2000/05/23 John Dorsey <[email protected]>
  10. * Definitions for SA1111 added.
  11. */
  12. #ifndef __ASM_ARCH_HARDWARE_H
  13. #define __ASM_ARCH_HARDWARE_H
  14. #define UNCACHEABLE_ADDR 0xfa050000 /* ICIP */
  15. /*
  16. * SA1100 internal I/O mappings
  17. *
  18. * We have the following mapping:
  19. * phys virt
  20. * 80000000 f8000000
  21. * 90000000 fa000000
  22. * a0000000 fc000000
  23. * b0000000 fe000000
  24. */
  25. #define VIO_BASE 0xf8000000 /* virtual start of IO space */
  26. #define VIO_SHIFT 3 /* x = IO space shrink power */
  27. #define PIO_START 0x80000000 /* physical start of IO space */
  28. #define io_p2v( x ) \
  29. IOMEM( (((x)&0x00ffffff) | (((x)&0x30000000)>>VIO_SHIFT)) + VIO_BASE )
  30. #define io_v2p( x ) \
  31. ( (((x)&0x00ffffff) | (((x)&(0x30000000>>VIO_SHIFT))<<VIO_SHIFT)) + PIO_START )
  32. #define __MREG(x) IOMEM(io_p2v(x))
  33. #ifndef __ASSEMBLY__
  34. # define __REG(x) (*((volatile unsigned long __iomem *)io_p2v(x)))
  35. # define __PREG(x) (io_v2p((unsigned long)&(x)))
  36. #else
  37. # define __REG(x) io_p2v(x)
  38. # define __PREG(x) io_v2p(x)
  39. #endif
  40. #include "SA-1100.h"
  41. #endif /* _ASM_ARCH_HARDWARE_H */