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

   1/*
   2 * arch/arm/mach-sa1100/include/mach/hardware.h
   3 *
   4 * Copyright (C) 1998 Nicolas Pitre <nico@fluxnic.net>
   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
  16#define UNCACHEABLE_ADDR        0xfa050000
  17
  18
  19/*
  20 * SA1100 internal I/O mappings
  21 *
  22 * We have the following mapping:
  23 *      phys            virt
  24 *      80000000        f8000000
  25 *      90000000        fa000000
  26 *      a0000000        fc000000
  27 *      b0000000        fe000000
  28 */
  29
  30#define VIO_BASE        0xf8000000      /* virtual start of IO space */
  31#define VIO_SHIFT       3               /* x = IO space shrink power */
  32#define PIO_START       0x80000000      /* physical start of IO space */
  33
  34#define io_p2v( x )             \
  35   IOMEM( (((x)&0x00ffffff) | (((x)&0x30000000)>>VIO_SHIFT)) + VIO_BASE )
  36#define io_v2p( x )             \
  37   ( (((x)&0x00ffffff) | (((x)&(0x30000000>>VIO_SHIFT))<<VIO_SHIFT)) + PIO_START )
  38
  39#define CPU_SA1110_A0   (0)
  40#define CPU_SA1110_B0   (4)
  41#define CPU_SA1110_B1   (5)
  42#define CPU_SA1110_B2   (6)
  43#define CPU_SA1110_B4   (8)
  44
  45#define CPU_SA1100_ID   (0x4401a110)
  46#define CPU_SA1100_MASK (0xfffffff0)
  47#define CPU_SA1110_ID   (0x6901b110)
  48#define CPU_SA1110_MASK (0xfffffff0)
  49
  50#define __MREG(x)       IOMEM(io_p2v(x))
  51
  52#ifndef __ASSEMBLY__
  53
  54#include <asm/cputype.h>
  55
  56#define CPU_REVISION    (read_cpuid_id() & 15)
  57
  58#define cpu_is_sa1100() ((read_cpuid_id() & CPU_SA1100_MASK) == CPU_SA1100_ID)
  59#define cpu_is_sa1110() ((read_cpuid_id() & CPU_SA1110_MASK) == CPU_SA1110_ID)
  60
  61# define __REG(x)       (*((volatile unsigned long __iomem *)io_p2v(x)))
  62# define __PREG(x)      (io_v2p((unsigned long)&(x)))
  63
  64static inline unsigned long get_clock_tick_rate(void)
  65{
  66        return 3686400;
  67}
  68#else
  69
  70# define __REG(x)       io_p2v(x)
  71# define __PREG(x)      io_v2p(x)
  72
  73#endif
  74
  75#include "SA-1100.h"
  76
  77#ifdef CONFIG_SA1101
  78#include "SA-1101.h"
  79#endif
  80
  81#endif  /* _ASM_ARCH_HARDWARE_H */
  82