1 /* $NetBSD: elb.c,v 1.1 2003/03/11 10:57:57 hannken Exp $ */ 2 3 /*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Juergen Hannken-Illjes. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/param.h> 40 #include <sys/conf.h> 41 #include <sys/device.h> 42 #include <sys/systm.h> 43 44 #include <machine/explora.h> 45 #define _IBM4XX_BUS_DMA_PRIVATE 46 #include <machine/bus.h> 47 48 #include <powerpc/ibm4xx/dcr403cgx.h> 49 50 #include <evbppc/explora/dev/elbvar.h> 51 52 struct elb_dev { 53 const char *elb_name; 54 int elb_addr; 55 int elb_addr2; 56 int elb_irq; 57 }; 58 59 static int elb_match(struct device *, struct cfdata *, void *); 60 static void elb_attach(struct device *, struct device *, void *); 61 static int elb_print(void *, const char *); 62 63 static struct elb_dev elb_devs[] = { 64 { "cpu", 0, 0, -1 }, 65 { "pckbc", BASE_PCKBC, BASE_PCKBC2, 31 }, 66 { "com", BASE_COM, 0, 30 }, 67 { "lpt", BASE_LPT, 0, -1 }, 68 { "fb", BASE_FB, BASE_FB2, -1 }, 69 { "le", BASE_LE, 0, 28 }, 70 }; 71 72 CFATTACH_DECL(elb, sizeof(struct device), 73 elb_match, elb_attach, NULL, NULL); 74 75 /* 76 * Probe for the elb; always succeeds. 77 */ 78 static int 79 elb_match(struct device *parent, struct cfdata *cf, void *aux) 80 { 81 return (1); 82 } 83 84 /* 85 * Attach the Explora local bus. 86 */ 87 static void 88 elb_attach(struct device *parent, struct device *self, void *aux) 89 { 90 struct elb_attach_args eaa; 91 int i; 92 93 printf("\n"); 94 for (i = 0; i < sizeof(elb_devs)/sizeof(elb_devs[0]); i++) { 95 eaa.elb_name = elb_devs[i].elb_name; 96 eaa.elb_bt = MAKE_BUS_TAG(elb_devs[i].elb_addr); 97 eaa.elb_dmat = &ibm4xx_default_bus_dma_tag; 98 eaa.elb_base = elb_devs[i].elb_addr; 99 eaa.elb_base2 = elb_devs[i].elb_addr2; 100 eaa.elb_irq = elb_devs[i].elb_irq; 101 102 (void) config_found_sm(self, &eaa, elb_print, NULL); 103 } 104 } 105 106 static int 107 elb_print(void *aux, const char *pnp) 108 { 109 struct elb_attach_args *eaa = aux; 110 111 if (pnp) 112 aprint_normal("%s at %s", eaa->elb_name, pnp); 113 if (eaa->elb_irq != -1) 114 aprint_normal(" irq %d", eaa->elb_irq); 115 116 return (UNCONF); 117 } 118