1/* $NetBSD: obio.c,v 1.13 2021/08/07 16:18:49 thorpej Exp $ */ 2 3/* 4 * Copyright (c) 2001, 2002, 2003 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 * On-board device autoconfiguration support for ADI BRH 40 * evaluation boards. 41 */ 42 43#include <sys/cdefs.h> 44__KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.13 2021/08/07 16:18:49 thorpej Exp $"); 45 46#include <sys/param.h> 47#include <sys/systm.h> 48#include <sys/device.h> 49 50#include <machine/autoconf.h> 51#include <sys/bus.h> 52 53#include <arm/xscale/beccreg.h> 54#include <arm/xscale/beccvar.h> 55 56#include <evbarm/adi_brh/brhreg.h> 57#include <evbarm/adi_brh/obiovar.h> 58 59#include "locators.h" 60 61int obio_match(device_t, cfdata_t, void *); 62void obio_attach(device_t, device_t, void *); 63 64CFATTACH_DECL_NEW(obio, 0, 65 obio_match, obio_attach, NULL, NULL); 66 67int obio_print(void *, const char *); 68int obio_search(device_t, cfdata_t, const int *, void *); 69 70/* there can be only one */ 71bool obio_found; 72 73int 74obio_match(device_t parent, cfdata_t cf, void *aux) 75{ 76#if 0 77 struct mainbus_attach_args *ma = aux; 78#endif 79 80 if (obio_found) 81 return (0); 82 83#if 1 84 /* XXX Shoot arch/arm/mainbus in the head. */ 85 return (1); 86#else 87 if (strcmp(cf->cf_name, ma->ma_name) == 0) 88 return (1); 89 90 return (0); 91#endif 92} 93 94void 95obio_attach(device_t parent, device_t self, void *aux) 96{ 97 98 obio_found = true; 99 100 aprint_naive("\n"); 101 aprint_normal("\n"); 102 103 /* 104 * Attach all on-board devices as described in the kernel 105 * configuration file. 106 */ 107 config_search(self, NULL, 108 CFARGS(.search = obio_search)); 109} 110 111int 112obio_print(void *aux, const char *pnp) 113{ 114 struct obio_attach_args *oba = aux; 115 116 aprint_normal(" addr 0x%08lx", oba->oba_addr); 117 if (oba->oba_size != OBIOCF_SIZE_DEFAULT) 118 aprint_normal("-0x%08lx", oba->oba_addr + (oba->oba_size - 1)); 119 if (oba->oba_width != OBIOCF_WIDTH_DEFAULT) 120 aprint_normal(" width %d", oba->oba_width); 121 if (oba->oba_irq != OBIOCF_IRQ_DEFAULT) 122 aprint_normal(" irq %d", oba->oba_irq); 123 124 return (UNCONF); 125} 126 127int 128obio_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux) 129{ 130 struct obio_attach_args oba; 131 132 oba.oba_st = &obio_bs_tag; 133 134 oba.oba_addr = cf->cf_loc[OBIOCF_ADDR]; 135 oba.oba_size = cf->cf_loc[OBIOCF_SIZE]; 136 oba.oba_width = cf->cf_loc[OBIOCF_WIDTH]; 137 oba.oba_irq = cf->cf_loc[OBIOCF_IRQ]; 138 139 if (config_probe(parent, cf, &oba)) 140 config_attach(parent, cf, &oba, obio_print, CFARGS_NONE); 141 142 return (0); 143} 144