i80321_space.c revision 278727
1/* $NetBSD: i80321_space.c,v 1.6 2003/10/06 15:43:35 thorpej 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 i80321 I/O Processor. 40 */ 41 42#include <sys/cdefs.h> 43__FBSDID("$FreeBSD: stable/10/sys/arm/xscale/i80321/i80321_space.c 278727 2015-02-13 22:32:02Z ian $"); 44 45#include <sys/param.h> 46#include <sys/systm.h> 47#include <sys/bus.h> 48 49#include <machine/pcb.h> 50 51#include <vm/vm.h> 52#include <vm/vm_kern.h> 53#include <vm/pmap.h> 54#include <vm/vm_page.h> 55#include <vm/vm_extern.h> 56 57#include <machine/bus.h> 58 59#include <arm/xscale/i80321/i80321reg.h> 60#include <arm/xscale/i80321/i80321var.h> 61 62/* Prototypes for all the bus_space structure functions */ 63bs_protos(i80321); 64bs_protos(i80321_io); 65bs_protos(i80321_mem); 66 67void 68i80321_bs_init(bus_space_tag_t bs, void *cookie) 69{ 70 71 *bs = *arm_base_bs_tag; 72 bs->bs_privdata = cookie; 73} 74 75void 76i80321_io_bs_init(bus_space_tag_t bs, void *cookie) 77{ 78 79 *bs = *arm_base_bs_tag; 80 bs->bs_privdata = cookie; 81 82 bs->bs_map = i80321_io_bs_map; 83 bs->bs_unmap = i80321_io_bs_unmap; 84 bs->bs_alloc = i80321_io_bs_alloc; 85 bs->bs_free = i80321_io_bs_free; 86 87} 88 89void 90i80321_mem_bs_init(bus_space_tag_t bs, void *cookie) 91{ 92 93 *bs = *arm_base_bs_tag; 94 bs->bs_privdata = cookie; 95 96 bs->bs_map = i80321_mem_bs_map; 97 bs->bs_unmap = i80321_mem_bs_unmap; 98 bs->bs_alloc = i80321_mem_bs_alloc; 99 bs->bs_free = i80321_mem_bs_free; 100 101} 102 103/* *** Routines shared by i80321, PCI IO, and PCI MEM. *** */ 104 105int 106i80321_bs_subregion(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset, 107 bus_size_t size, bus_space_handle_t *nbshp) 108{ 109 110 *nbshp = bsh + offset; 111 return (0); 112} 113 114void 115i80321_bs_barrier(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset, 116 bus_size_t len, int flags) 117{ 118 119 /* Nothing to do. */ 120} 121 122/* *** Routines for PCI IO. *** */ 123 124extern struct i80321_softc *i80321_softc; 125int 126i80321_io_bs_map(bus_space_tag_t tag, bus_addr_t bpa, bus_size_t size, int flags, 127 bus_space_handle_t *bshp) 128{ 129 struct i80321_softc *sc = i80321_softc; 130 vm_offset_t winvaddr; 131 uint32_t busbase; 132 133 if (bpa >= sc->sc_ioout_xlate && 134 bpa < (sc->sc_ioout_xlate + VERDE_OUT_XLATE_IO_WIN_SIZE)) { 135 busbase = sc->sc_ioout_xlate; 136 winvaddr = sc->sc_iow_vaddr; 137 } else 138 return (EINVAL); 139 140 if ((bpa + size) >= (busbase + VERDE_OUT_XLATE_IO_WIN_SIZE)) 141 return (EINVAL); 142 143 /* 144 * Found the window -- PCI I/O space is mapped at a fixed 145 * virtual address by board-specific code. Translate the 146 * bus address to the virtual address. 147 */ 148 *bshp = winvaddr + (bpa - busbase); 149 150 return (0); 151} 152 153void 154i80321_io_bs_unmap(bus_space_tag_t tag, bus_space_handle_t h, bus_size_t size) 155{ 156 157 /* Nothing to do. */ 158} 159 160int 161i80321_io_bs_alloc(bus_space_tag_t tag, bus_addr_t rstart, bus_addr_t rend, 162 bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags, 163 bus_addr_t *bpap, bus_space_handle_t *bshp) 164{ 165 166 panic("i80321_io_bs_alloc(): not implemented"); 167} 168 169void 170i80321_io_bs_free(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t size) 171{ 172 173 panic("i80321_io_bs_free(): not implemented"); 174} 175 176 177/* *** Routines for PCI MEM. *** */ 178extern int badaddr_read(void *, int, void *); 179int 180i80321_mem_bs_map(bus_space_tag_t tag, bus_addr_t bpa, bus_size_t size, int flags, 181 bus_space_handle_t *bshp) 182{ 183 184 *bshp = (vm_offset_t)pmap_mapdev(bpa, size); 185 return (0); 186} 187 188void 189i80321_mem_bs_unmap(bus_space_tag_t tag, bus_space_handle_t h, bus_size_t size) 190{ 191 192 pmap_unmapdev((vm_offset_t)h, size); 193} 194 195int 196i80321_mem_bs_alloc(bus_space_tag_t tag, bus_addr_t rstart, bus_addr_t rend, 197 bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags, 198 bus_addr_t *bpap, bus_space_handle_t *bshp) 199{ 200 201 panic("i80321_mem_bs_alloc(): not implemented"); 202} 203 204void 205i80321_mem_bs_free(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t size) 206{ 207 208 panic("i80321_mem_bs_free(): not implemented"); 209} 210