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
  64 static 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 */