include/asm-arm/arch-sa1100/hardware.h

   1 /*
   2  * linux/include/asm-arm/arch-sa1100/hardware.h
   3  *
   4  * Copyright (C) 1998 Nicolas Pitre <nico@cam.org>
   5  *
   6  * This file contains the hardware definitions for SA1100 architecture
   7  *
   8  * 2000/05/23 John Dorsey <john+@cs.cmu.edu>
   9  *      Definitions for SA1111 added.
  10  */
  11
  12 #ifndef __ASM_ARCH_HARDWARE_H
  13 #define __ASM_ARCH_HARDWARE_H
  14
  15 #include <linux/config.h>
  16
  17 /* Flushing areas */
  18 #define FLUSH_BASE_PHYS         0xe0000000      /* SA1100 zero bank */
  19 #define FLUSH_BASE              0xf5000000
  20 #define FLUSH_BASE_MINICACHE    0xf5800000
  21 #define UNCACHEABLE_ADDR        0xfa050000
  22
  23
  24 /*
  25  * SA1100 internal I/O mappings
  26  *
  27  * We have the following mapping:
  28  *      phys            virt
  29  *      80000000        f8000000
  30  *      90000000        fa000000
  31  *      a0000000        fc000000
  32  *      b0000000        fe000000
  33  */
  34
  35 #define VIO_BASE        0xf8000000      /* virtual start of IO space */
  36 #define VIO_SHIFT       3               /* x = IO space shrink power */
  37 #define PIO_START       0x80000000      /* physical start of IO space */
  38
  39 #define io_p2v( x )             \
  40    ( (((x)&0x00ffffff) | (((x)&0x30000000)>>VIO_SHIFT)) + VIO_BASE )
  41 #define io_v2p( x )             \
  42    ( (((x)&0x00ffffff) | (((x)&(0x30000000>>VIO_SHIFT))<<VIO_SHIFT)) + PIO_START )
  43
  44 #ifndef __ASSEMBLY__
  45
  46 # define __REG(x)       (*((volatile unsigned long *)io_p2v(x)))
  47 # define __PREG(x)      (io_v2p((unsigned long)&(x)))
  48
  49 #else
  50
  51 # define __REG(x)       io_p2v(x)
  52 # define __PREG(x)      io_v2p(x)
  53
  54 #endif
  55
  56 #include "SA-1100.h"
  57
  58 #ifdef CONFIG_SA1101
  59 #include "SA-1101.h"
  60 #endif
  61
  62 #endif  /* _ASM_ARCH_HARDWARE_H */