1 /* $NetBSD: dcr.c,v 1.2 2011/07/01 19:03:50 dyoung 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 1.2 2011/07/01 19:03:50 dyoung Exp $"); 41 42 #include <sys/types.h> 43 #include <sys/bus.h> 44 #include <evbppc/virtex/dcr.h> 45 46 int 47 dcr_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 55 void 56 dcr_unmap(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t size) 57 { 58 /* Nothing to do. */ 59 } 60 61 int 62 dcr_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