1 /* $NetBSD: obio.c,v 1.2 2009/12/16 08:26:14 matt Exp $ */ 2 3 /* 4 * Copyright 2002 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Simon Burge 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 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.2 2009/12/16 08:26:14 matt Exp $"); 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/device.h> 44 45 #include <machine/bus.h> 46 47 #include <mips/cache.h> 48 #include <mips/cpuregs.h> 49 50 #include <evbmips/alchemy/board.h> 51 #include <evbmips/alchemy/obiovar.h> 52 53 #include "locators.h" 54 55 static int obio_match(struct device *, struct cfdata *, void *); 56 static void obio_attach(struct device *, struct device *, void *); 57 static int obio_submatch(struct device *, struct cfdata *, 58 const int *, void *); 59 static int obio_print(void *, const char *); 60 61 CFATTACH_DECL(obio, sizeof(struct device), 62 obio_match, obio_attach, NULL, NULL); 63 64 /* There can be only one. */ 65 static int obio_found = 0; 66 67 static int 68 obio_match(struct device *parent, struct cfdata *match, void *aux) 69 { 70 71 if (obio_found) 72 return (0); 73 74 return (1); 75 } 76 77 static void 78 obio_attach(struct device *parent, struct device *self, void *aux) 79 { 80 struct obio_attach_args oa; 81 const struct obiodev *od; 82 const struct alchemy_board *board; 83 84 obio_found = 1; 85 printf("\n"); 86 87 board = board_info(); 88 for (od = board->ab_devices; od->od_name != NULL; od++) { 89 oa.oba_name = od->od_name; 90 oa.oba_addr = od->od_addr; 91 oa.oba_irq = od->od_irq; 92 (void) config_found_sm_loc(self, "obio", NULL, &oa, obio_print, 93 obio_submatch); 94 } 95 } 96 97 static int 98 obio_submatch(struct device *parent, struct cfdata *cf, 99 const int *ldesc, void *aux) 100 { 101 struct obio_attach_args *oa = aux; 102 103 if (cf->cf_loc[OBIOCF_ADDR] != OBIOCF_ADDR_DEFAULT && 104 cf->cf_loc[OBIOCF_ADDR] != oa->oba_addr) 105 return (0); 106 107 return (config_match(parent, cf, aux)); 108 } 109 110 static int 111 obio_print(void *aux, const char *pnp) 112 { 113 struct obio_attach_args *oa = aux; 114 115 if (pnp) 116 aprint_normal("%s at %s", oa->oba_name, pnp); 117 if (oa->oba_addr != OBIOCF_ADDR_DEFAULT) 118 aprint_normal(" addr 0x%" PRIxBUSADDR, oa->oba_addr); 119 120 return (UNCONF); 121 } 122