1 /* $NetBSD: obio_space.c,v 1.3 2002/09/27 15:36:01 provos Exp $ */ 2 3 /* 4 * Copyright (c) 2001, 2002 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * bus_space functions for IQ80321 on-board devices 40 */ 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 45 #include <uvm/uvm_extern.h> 46 47 #include <machine/bus.h> 48 49 /* Prototypes for all the bus_space structure functions */ 50 bs_protos(obio); 51 bs_protos(generic); 52 bs_protos(bs_notimpl); 53 54 /* 55 * The obio bus space tag. This is constant for all instances, so 56 * we never have to explicitly "create" it. 57 */ 58 struct bus_space obio_bs_tag = { 59 /* cookie */ 60 (void *) 0, 61 62 /* mapping/unmapping */ 63 obio_bs_map, 64 obio_bs_unmap, 65 obio_bs_subregion, 66 67 /* allocation/deallocation */ 68 obio_bs_alloc, 69 obio_bs_free, 70 71 /* get kernel virtual address */ 72 obio_bs_vaddr, 73 74 /* mmap */ 75 bs_notimpl_bs_mmap, 76 77 /* barrier */ 78 obio_bs_barrier, 79 80 /* read (single) */ 81 generic_bs_r_1, 82 bs_notimpl_bs_r_2, 83 generic_bs_r_4, 84 bs_notimpl_bs_r_8, 85 86 /* read multiple */ 87 generic_bs_rm_1, 88 bs_notimpl_bs_rm_2, 89 bs_notimpl_bs_rm_4, 90 bs_notimpl_bs_rm_8, 91 92 /* read region */ 93 bs_notimpl_bs_rr_1, 94 bs_notimpl_bs_rr_2, 95 bs_notimpl_bs_rr_4, 96 bs_notimpl_bs_rr_8, 97 98 /* write (single) */ 99 generic_bs_w_1, 100 bs_notimpl_bs_w_2, 101 generic_bs_w_4, 102 bs_notimpl_bs_w_8, 103 104 /* write multiple */ 105 generic_bs_wm_1, 106 bs_notimpl_bs_wm_2, 107 bs_notimpl_bs_wm_4, 108 bs_notimpl_bs_wm_8, 109 110 /* write region */ 111 bs_notimpl_bs_wr_1, 112 bs_notimpl_bs_wr_2, 113 bs_notimpl_bs_wr_4, 114 bs_notimpl_bs_wr_8, 115 116 /* set multiple */ 117 bs_notimpl_bs_sm_1, 118 bs_notimpl_bs_sm_2, 119 bs_notimpl_bs_sm_4, 120 bs_notimpl_bs_sm_8, 121 122 /* set region */ 123 bs_notimpl_bs_sr_1, 124 bs_notimpl_bs_sr_2, 125 bs_notimpl_bs_sr_4, 126 bs_notimpl_bs_sr_8, 127 128 /* copy */ 129 bs_notimpl_bs_c_1, 130 bs_notimpl_bs_c_2, 131 bs_notimpl_bs_c_4, 132 bs_notimpl_bs_c_8, 133 }; 134 135 int 136 obio_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags, 137 bus_space_handle_t *bshp) 138 { 139 140 /* 141 * IQ80321 on-board devices are mapped VA==PA. All addresses 142 * we're provided, therefore, don't need any additional mapping. 143 */ 144 *bshp = bpa; 145 146 return 0; 147 } 148 149 int 150 obio_bs_alloc(void *t, bus_addr_t rstart, bus_addr_t rend, bus_size_t size, 151 bus_size_t alignment, bus_size_t boundary, int flags, bus_addr_t *bpap, 152 bus_space_handle_t *bshp) 153 { 154 155 panic("obio_bs_alloc(): not implemented"); 156 } 157 158 159 void 160 obio_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size) 161 { 162 163 /* Nothing to do. */ 164 } 165 166 void 167 obio_bs_free(void *t, bus_space_handle_t bsh, bus_size_t size) 168 { 169 170 panic("obio_bs_free(): not implemented"); 171 } 172 173 int 174 obio_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset, 175 bus_size_t size, bus_space_handle_t *nbshp) 176 { 177 178 *nbshp = bsh + offset; 179 return (0); 180 } 181 182 void * 183 obio_bs_vaddr(void *t, bus_space_handle_t bsh) 184 { 185 186 return ((void *)bsh); 187 } 188 189 void 190 obio_bs_barrier(void *t, bus_space_handle_t bsh, bus_size_t offset, 191 bus_size_t len, int flags) 192 { 193 194 /* Nothing to do. */ 195 } 196