1 /* $NetBSD: iomap.h,v 1.17 2024/09/08 09:36:49 rillig 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 extern 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 a 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 its ISA I/O devices (RTC, Interrupt controller, etc.) 50 */ 51 extern vaddr_t pci_conf_addr; /* KVA base of PCI config space */ 52 extern vaddr_t pci_io_addr; /* KVA base of PCI io-space */ 53 extern vaddr_t pci_mem_addr; /* KVA base of PCI mem-space */ 54 extern 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 */ 144