sys/arch/atari/include/iomap.h

   1 /*      $NetBSD: iomap.h,v 1.13 2009/08/23 01:27:12 mrg Exp $   */
   2
   3 /*
   4  * Copyright (c) 1995 Leo Weppelman.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #ifndef _MACHINE_IOMAP_H
  29 #define _MACHINE_IOMAP_H
  30
  31 #ifdef _KERNEL_OPT
  32 #include "opt_mbtype.h"
  33 #endif
  34 /*
  35  * Atari TT hardware:
  36  * I/O Address maps
  37  */
  38 #ifdef _KERNEL
  39 vaddr_t stio_addr;              /* Where the st io-area is mapped       */
  40 #define AD_STIO (stio_addr)     /* .. see atari_init.c                  */
  41
  42 /*
  43  * PCI KVA addresses. These are determined in atari_init.c. Except for
  44  * the config-space, they should be used for a PCI-console only. Other
  45  * cards should use the bus-functions to map io & mem spaces.
  46  * Each card gets an config area of PAGE_SIZE  bytes.
  47  * 'pci_mem_uncached' is used by the Milan interrupt handler that frobs
  48  * with the PLX. Also, the Milan uses the first page of 'pci_io_addr' for
  49  * access to some of it's ISA I/O devices (RTC, Interrupt controller, etc.)
  50  */
  51 vaddr_t pci_conf_addr;          /* KVA base of PCI config space         */
  52 vaddr_t pci_io_addr;            /* KVA base of PCI io-space             */
  53 vaddr_t pci_mem_addr;           /* KVA base of PCI mem-space            */
  54 vaddr_t pci_mem_uncached;       /* KVA base of an uncached PCI mem-page */
  55 #endif /* _KERNEL */
  56
  57 #define PCI_CONFB_PHYS          (0xA0000000L)
  58 #define PCI_CONFM_PHYS          (0x00010000L)
  59
  60 #if defined(_ATARIHW_)
  61 #define PCI_IO_PHYS             (0xB0000000L)
  62 #define PCI_MEM_PHYS            (0x80000000L)
  63 #define PCI_VGA_PHYS            (0x800a0000L)
  64 #define ISA_IOSTART             (0xfff30000L) /* XXX: With byte frobbing */
  65 #define ISA_MEMSTART            (0xff000000L)
  66 #endif /* defined(_ATARIHW_) */
  67
  68 #if defined(_MILANHW_)
  69 #define PCI_IO_PHYS             (0x80000000L)
  70 #define PCI_MEM_PHYS            (0x40000000L)
  71 #define PCI_VGA_PHYS            (0x400a0000L)
  72 #define ISA_IOSTART             (0x80000000L) /* !NO! byte frobbing      */
  73 #define ISA_MEMSTART            (0x40000000L)
  74 #endif  /* defined(_MILANHW_) */
  75
  76 /*
  77  * Pre-allocated PCI-memory regions (atari_init.c). We need those in the
  78  * boot-stages.
  79  * XXX: Can probably be reduced to only PCI_CONFIG_SIZE (Leo).
  80  */
  81 #define PCI_CONFIG_SIZE (4 * PAGE_SIZE)
  82 #define PCI_IO_SIZE     (PAGE_SIZE)
  83 #define PCI_MEM_SIZE    (PAGE_SIZE)
  84
  85 #define PCI_VGA_SIZE    (32 * 1024) /* XXX Leo: Only used by grfabs_et now. */
  86
  87 /*
  88  * See bootm_init()/bootm_alloc() in bus.c for the usage of this pool
  89  * of pre-allocated VA-space.
  90  */
  91 #define BOOTM_VA_POOL   (32 * 8192)     /* Pre-allocated VA-space       */
  92
  93 #define AD_RAM          (0x000000L)     /* main memory                  */
  94 #define AD_CART         (0xFA0000L)     /* expansion cartridge          */
  95 #define AD_ROM          (0xFC0000L)     /* system ROM                   */
  96 #define STIO_SIZE       (0x8000L)       /* Size of mapped I/O devices   */
  97
  98 /*
  99  * Physical address of I/O area. Use only for pte initialisation!
 100  */
 101 #define STIO_PHYS       ((machineid & (ATARI_HADES | ATARI_MILAN))      \
 102                                 ? 0xffff8000L                           \
 103                                 : 0x00ff8000L)
 104
 105 #if defined(_ATARIHW_)
 106
 107 /*
 108  * I/O addresses in the STIO area:
 109  */
 110 #define AD_RAMCFG       (AD_STIO + 0x0000)      /* ram configuration    */
 111 #define AD_FAL_MON_TYPE (AD_STIO + 0x0006)      /* Falcon monitor type  */
 112 #define AD_VIDEO        (AD_STIO + 0x0200)      /* video controller     */
 113 #define AD_RESERVED     (AD_STIO + 0x0400)      /* reserved             */
 114 #define AD_DMA          (AD_STIO + 0x0600)      /* DMA device access    */
 115 #define AD_SCSI_DMA     (AD_STIO + 0x0700)      /* SCSI DMA registers   */
 116 #define AD_NCR5380      (AD_STIO + 0x0780)      /* SCSI controller      */
 117 #define AD_SOUND        (AD_STIO + 0x0800)      /* YM-2149              */
 118 #define AD_RTC          (AD_STIO + 0x0960)      /* TT realtime clock    */
 119 #define AD_SCC          (AD_STIO + 0x0C80)      /* SCC 8530             */
 120 #define AD_SCU          (AD_STIO + 0x0E00)      /* System Control Unit  */
 121 #define AD_CFG_SWITCH   (AD_STIO + 0x1200)      /* Config switches      */
 122 #define AD_MFP          (AD_STIO + 0x7A00)      /* 68901                */
 123 #define AD_MFP2         (AD_STIO + 0x7A80)      /* 68901-TT             */
 124 #define AD_ACIA         (AD_STIO + 0x7C00)      /* 2 * 6850             */
 125 #endif /* defined(_ATARIHW_) */
 126
 127 #if defined(_MILANHW_)
 128 /*
 129  * Milan onboard I/O
 130  */
 131 #define AD_MFP          (AD_STIO + 0x4100)      /* 68901                */
 132 #define AD_PLX          (AD_STIO + 0x4200)      /* PLX9080              */
 133
 134 /*
 135  * Milan special locations in the first page of the PCI I/O space.
 136  */
 137 #define AD_8259_MASTER  (pci_io_addr + 0x20)    /* Master int. contr.   */
 138 #define AD_8259_SLAVE   (pci_io_addr + 0xA0)    /* Slave int. contr.    */
 139 #define AD_RTC          (pci_io_addr + 0x70)    /* MC146818 compat. RTC */
 140
 141 #endif /* defined(_MILANHW_) */
 142
 143 #endif /* _MACHINE_IOMAP_H */