LXR linux/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 */
  57