1 /* $NetBSD: nexus.h,v 1.27 2011/06/05 16:59:21 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 1982, 1986 The Regents of the University of California. 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 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)nexus.h 7.3 (Berkeley) 5/9/91 32 */ 33 34 /* 35 * ABus support added by Johnny Billquist 2010. 36 */ 37 38 #ifndef _VAX_NEXUS_H_ 39 #define _VAX_NEXUS_H_ 40 41 #include <machine/bus.h> 42 43 #ifdef _KERNEL 44 #include "opt_cputype.h" 45 #endif 46 /* 47 * Different definitions for nicer autoconf probing. 48 */ 49 enum bustypes { 50 VAX_SBIBUS, /* SBI parent (780) */ 51 VAX_CMIBUS, /* CMI backplane (750) */ 52 VAX_UNIBUS, /* Direct backplane (730) */ 53 VAX_ABUS, /* ABus (8600) */ 54 VAX_BIBUS, /* BI bus (8200) */ 55 VAX_NMIBUS, /* NMI backplane (8800) */ 56 VAX_VSBUS, /* Virtual vaxstation bus */ 57 VAX_IBUS, /* Internal Microvax bus */ 58 VAX_XMIBUS, /* XMI master bus (6000) */ 59 }; 60 /* 61 * Information about nexus's. 62 * 63 * Each machine has an address of backplane slots (nexi). 64 * Each nexus is some type of adapter, whose code is the low 65 * byte of the first word of the adapter address space. 66 * At boot time the system looks through the array of available 67 * slots and finds the interconnects for the machine. 68 * 69 * VAX8600 nexus information is located in ioa.h 70 */ 71 #define IO_CMI750 2 72 #define MAXNMCR 1 73 74 #define NNEXSBI 16 75 #if VAX780 || VAXANY 76 #define NNEX780 NNEXSBI 77 #define NEX780 ((struct nexus *)0x20000000) 78 #endif 79 #if VAX730 || VAXANY 80 #define NNEX730 NNEXSBI 81 #define NEX730 ((struct nexus *)0xf20000) 82 #endif 83 #define NEXSIZE 0x2000 84 85 #ifdef _KERNEL 86 87 struct nexus { 88 union nexcsr { 89 long nex_csr; 90 u_char nex_type; 91 } nexcsr; 92 long nex_pad[NEXSIZE / sizeof (long) - 1]; 93 }; 94 95 struct abus_attach_args { 96 const char *aa_name; 97 int aa_type; 98 bus_addr_t aa_base; 99 int aa_num; 100 bus_space_tag_t aa_iot; 101 bus_space_handle_t aa_ioh; 102 bus_dma_tag_t aa_dmat; 103 }; 104 105 struct sbi_attach_args { 106 int sa_nexnum; /* This nexus TR number */ 107 int sa_type; /* This nexus type */ 108 int sa_sbinum; 109 bus_space_tag_t sa_iot; 110 bus_space_handle_t sa_ioh; 111 bus_dma_tag_t sa_dmat; 112 bus_addr_t sa_base; 113 }; 114 115 /* Memory device struct. This should be somewhere else */ 116 struct mem_softc { 117 device_t sc_dev; 118 void * sc_memaddr; 119 int sc_memtype; 120 int sc_memnr; 121 }; 122 123 struct ibus_attach_args { 124 const char *ia_type; 125 int ia_num; 126 int ia_partyp; 127 paddr_t ia_addr; 128 }; 129 #endif 130 131 /* 132 * Bits in high word of nexus's. 133 */ 134 #define SBI_PARFLT (1<<31) /* sbi parity fault */ 135 #define SBI_WSQFLT (1<<30) /* write sequence fault */ 136 #define SBI_URDFLT (1<<29) /* unexpected read data fault */ 137 #define SBI_ISQFLT (1<<28) /* interlock sequence fault */ 138 #define SBI_MXTFLT (1<<27) /* multiple transmitter fault */ 139 #define SBI_XMTFLT (1<<26) /* transmit fault */ 140 141 #define NEX_CFGFLT (0xfc000000) 142 143 #ifndef _LOCORE 144 #if VAX780 || VAX8600 || VAXANY 145 #define NEXFLT_BITS \ 146 "\20\40PARFLT\37WSQFLT\36URDFLT\35ISQFLT\34MXTFLT\33XMTFLT" 147 #endif 148 #endif 149 150 #define NEX_APD (1<<23) /* adaptor power down */ 151 #define NEX_APU (1<<22) /* adaptor power up */ 152 153 #define MBA_OT (1<<21) /* overtemperature */ 154 155 #define UBA_UBINIT (1<<18) /* unibus init */ 156 #define UBA_UBPDN (1<<17) /* unibus power down */ 157 #define UBA_UBIC (1<<16) /* unibus initialization complete */ 158 159 /* 160 * Types for nex_type. 161 */ 162 #define NEX_ANY 0 /* pseudo for handling 11/750 */ 163 #define NEX_MEM4 0x08 /* 4K chips, non-interleaved mem */ 164 #define NEX_MEM4I 0x09 /* 4K chips, interleaved mem */ 165 #define NEX_MEM16 0x10 /* 16K chips, non-interleaved mem */ 166 #define NEX_MEM16I 0x11 /* 16K chips, interleaved mem */ 167 #define NEX_MBA 0x20 /* Massbus adaptor */ 168 #define NEX_UBA0 0x28 /* Unibus adaptor */ 169 #define NEX_UBA1 0x29 /* 4 flavours for 4 addr spaces */ 170 #define NEX_UBA2 0x2a 171 #define NEX_UBA3 0x2b 172 #define NEX_DR32 0x30 /* DR32 user i'face to SBI */ 173 #define NEX_CI 0x38 /* CI adaptor */ 174 #define NEX_MPM0 0x40 /* Multi-port mem */ 175 #define NEX_MPM1 0x41 /* Who knows why 4 different ones ? */ 176 #define NEX_MPM2 0x42 177 #define NEX_MPM3 0x43 178 #define NEX_MEM64L 0x68 /* 64K chips, non-interleaved, lower */ 179 #define NEX_MEM64LI 0x69 /* 64K chips, ext-interleaved, lower */ 180 #define NEX_MEM64U 0x6a /* 64K chips, non-interleaved, upper */ 181 #define NEX_MEM64UI 0x6b /* 64K chips, ext-interleaved, upper */ 182 #define NEX_MEM64I 0x6c /* 64K chips, interleaved */ 183 #define NEX_MEM256L 0x70 /* 256K chips, non-interleaved, lower */ 184 #define NEX_MEM256LI 0x71 /* 256K chips, ext-interleaved, lower */ 185 #define NEX_MEM256U 0x72 /* 256K chips, non-interleaved, upper */ 186 #define NEX_MEM256UI 0x73 /* 256K chips, ext-interleaved, upper */ 187 #define NEX_MEM256I 0x74 /* 256K chips, interleaved */ 188 189 /* Memory classes */ 190 #define M_NONE 0 191 #define M780C 1 192 #define M780EL 2 193 #define M780EU 3 194 195 /* Memory recover defines */ 196 #define MCHK_PANIC -1 197 #define MCHK_RECOVERED 0 198 199 #endif /* _VAX_NEXUS_H_ */ 200