1/* $NetBSD: dcr.c,v 1.3 2022/03/10 00:14:16 riastradh Exp $ */ 2 3/* 4 * Copyright (c) 2006 Jachym Holecek 5 * All rights reserved. 6 * 7 * Written for DFC Design, s.r.o. 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 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32/* 33 * DCR bus space size & base addresses are hardcoded and runtime-checked, 34 * so there's no point in maintaning extents etc -- just provide placebo 35 * implementations so that we can use bus_space as usual (add more as 36 * needed). 37 */ 38 39#include <sys/cdefs.h> 40__KERNEL_RCSID(0, "$NetBSD: dcr.c,v 1.3 2022/03/10 00:14:16 riastradh Exp $"); 41 42#include <sys/types.h> 43#include <sys/bus.h> 44#include <evbppc/virtex/dcr.h> 45 46int 47dcr_map(bus_space_tag_t bst, bus_addr_t addr, bus_size_t size, int flags, 48 bus_space_handle_t *bsh) 49{ 50 *bsh = addr; 51 52 return (0); 53} 54 55void 56dcr_unmap(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t size) 57{ 58 /* Nothing to do. */ 59} 60 61int 62dcr_subregion(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t offset, 63 bus_size_t size, bus_space_handle_t *bshp) 64{ 65 *bshp = bsh + offset; 66 67 return (0); 68} 69 70void 71dcr_barrier(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t offset, 72 bus_size_t size, int flags) 73{ 74 /* XXX EIEIO? */ 75} 76