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

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * arch/arm/mach-sa1100/include/mach/hardware.h
   4  *
   5  * Copyright (C) 1998 Nicolas Pitre <nico@fluxnic.net>
   6  *
   7  * This file contains the hardware definitions for SA1100 architecture
   8  *
   9  * 2000/05/23 John Dorsey <john+@cs.cmu.edu>
  10  *      Definitions for SA1111 added.
  11  */
  12
  13 #ifndef __ASM_ARCH_HARDWARE_H
  14 #define __ASM_ARCH_HARDWARE_H
  15
  16
  17 #define UNCACHEABLE_ADDR        0xfa050000      /* ICIP */
  18
  19
  20 /*
  21  * SA1100 internal I/O mappings
  22  *
  23  * We have the following mapping:
  24  *      phys            virt
  25  *      80000000        f8000000
  26  *      90000000        fa000000
  27  *      a0000000        fc000000
  28  *      b0000000        fe000000
  29  */
  30
  31 #define VIO_BASE        0xf8000000      /* virtual start of IO space */
  32 #define VIO_SHIFT       3               /* x = IO space shrink power */
  33 #define PIO_START       0x80000000      /* physical start of IO space */
  34
  35 #define io_p2v( x )             \
  36    IOMEM( (((x)&0x00ffffff) | (((x)&0x30000000)>>VIO_SHIFT)) + VIO_BASE )
  37 #define io_v2p( x )             \
  38    ( (((x)&0x00ffffff) | (((x)&(0x30000000>>VIO_SHIFT))<<VIO_SHIFT)) + PIO_START )
  39
  40 #define __MREG(x)       IOMEM(io_p2v(x))
  41
  42 #ifndef __ASSEMBLY__
  43
  44 # define __REG(x)       (*((volatile unsigned long __iomem *)io_p2v(x)))
  45 # define __PREG(x)      (io_v2p((unsigned long)&(x)))
  46
  47 #else
  48
  49 # define __REG(x)       io_p2v(x)
  50 # define __PREG(x)      io_v2p(x)
  51
  52 #endif
  53
  54 #include "SA-1100.h"
  55
  56 #endif  /* _ASM_ARCH_HARDWARE_H */