obio.c revision 1.3.2.2
1 1.3.2.2 thorpej /* $NetBSD: obio.c,v 1.3.2.2 2002/01/10 19:42:37 thorpej Exp $ */ 2 1.3.2.2 thorpej 3 1.3.2.2 thorpej /* 4 1.3.2.2 thorpej * Copyright (c) 2001 Wasabi Systems, Inc. 5 1.3.2.2 thorpej * All rights reserved. 6 1.3.2.2 thorpej * 7 1.3.2.2 thorpej * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 1.3.2.2 thorpej * 9 1.3.2.2 thorpej * Redistribution and use in source and binary forms, with or without 10 1.3.2.2 thorpej * modification, are permitted provided that the following conditions 11 1.3.2.2 thorpej * are met: 12 1.3.2.2 thorpej * 1. Redistributions of source code must retain the above copyright 13 1.3.2.2 thorpej * notice, this list of conditions and the following disclaimer. 14 1.3.2.2 thorpej * 2. Redistributions in binary form must reproduce the above copyright 15 1.3.2.2 thorpej * notice, this list of conditions and the following disclaimer in the 16 1.3.2.2 thorpej * documentation and/or other materials provided with the distribution. 17 1.3.2.2 thorpej * 3. All advertising materials mentioning features or use of this software 18 1.3.2.2 thorpej * must display the following acknowledgement: 19 1.3.2.2 thorpej * This product includes software developed for the NetBSD Project by 20 1.3.2.2 thorpej * Wasabi Systems, Inc. 21 1.3.2.2 thorpej * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 1.3.2.2 thorpej * or promote products derived from this software without specific prior 23 1.3.2.2 thorpej * written permission. 24 1.3.2.2 thorpej * 25 1.3.2.2 thorpej * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 1.3.2.2 thorpej * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 1.3.2.2 thorpej * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 1.3.2.2 thorpej * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 1.3.2.2 thorpej * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 1.3.2.2 thorpej * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 1.3.2.2 thorpej * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 1.3.2.2 thorpej * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 1.3.2.2 thorpej * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 1.3.2.2 thorpej * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 1.3.2.2 thorpej * POSSIBILITY OF SUCH DAMAGE. 36 1.3.2.2 thorpej */ 37 1.3.2.2 thorpej 38 1.3.2.2 thorpej /* 39 1.3.2.2 thorpej * On-board device autoconfiguration support for Intel IQ80310 40 1.3.2.2 thorpej * evaluation boards. 41 1.3.2.2 thorpej * 42 1.3.2.2 thorpej * The "obio" device node handles all of the CPLD functions, 43 1.3.2.2 thorpej * as well ... timer, interrupts, etc. 44 1.3.2.2 thorpej */ 45 1.3.2.2 thorpej 46 1.3.2.2 thorpej #include <sys/param.h> 47 1.3.2.2 thorpej #include <sys/systm.h> 48 1.3.2.2 thorpej #include <sys/device.h> 49 1.3.2.2 thorpej 50 1.3.2.2 thorpej #include <machine/autoconf.h> 51 1.3.2.2 thorpej #include <machine/bus.h> 52 1.3.2.2 thorpej 53 1.3.2.2 thorpej #include <evbarm/iq80310/iq80310reg.h> 54 1.3.2.2 thorpej #include <evbarm/iq80310/iq80310var.h> 55 1.3.2.2 thorpej #include <evbarm/iq80310/obiovar.h> 56 1.3.2.2 thorpej 57 1.3.2.2 thorpej #include "locators.h" 58 1.3.2.2 thorpej 59 1.3.2.2 thorpej int obio_match(struct device *, struct cfdata *, void *); 60 1.3.2.2 thorpej void obio_attach(struct device *, struct device *, void *); 61 1.3.2.2 thorpej 62 1.3.2.2 thorpej struct cfattach obio_ca = { 63 1.3.2.2 thorpej sizeof(struct device), obio_match, obio_attach, 64 1.3.2.2 thorpej }; 65 1.3.2.2 thorpej 66 1.3.2.2 thorpej int obio_print(void *, const char *); 67 1.3.2.2 thorpej int obio_submatch(struct device *, struct cfdata *, void *); 68 1.3.2.2 thorpej 69 1.3.2.2 thorpej /* there can be only one */ 70 1.3.2.2 thorpej int obio_found; 71 1.3.2.2 thorpej 72 1.3.2.2 thorpej struct { 73 1.3.2.2 thorpej const char *od_name; 74 1.3.2.2 thorpej bus_addr_t od_addr; 75 1.3.2.2 thorpej int od_irq; 76 1.3.2.2 thorpej } obio_devices[] = { 77 1.3.2.2 thorpej /* 78 1.3.2.2 thorpej * Order these so the first UART matched is the one at J9 79 1.3.2.2 thorpej * and the second is the one at J10. (This is the same 80 1.3.2.2 thorpej * ordering RedBoot uses.) 81 1.3.2.2 thorpej */ 82 1.3.2.2 thorpej { "com", IQ80310_UART2, XINT3_IRQ(XINT3_UART2) }, 83 1.3.2.2 thorpej { "com", IQ80310_UART1, XINT3_IRQ(XINT3_UART1) }, 84 1.3.2.2 thorpej 85 1.3.2.2 thorpej { NULL, 0, 0 }, 86 1.3.2.2 thorpej }; 87 1.3.2.2 thorpej 88 1.3.2.2 thorpej int 89 1.3.2.2 thorpej obio_match(struct device *parent, struct cfdata *cf, void *aux) 90 1.3.2.2 thorpej { 91 1.3.2.2 thorpej #if 0 92 1.3.2.2 thorpej struct mainbus_attach_args *ma = aux; 93 1.3.2.2 thorpej #endif 94 1.3.2.2 thorpej 95 1.3.2.2 thorpej if (obio_found) 96 1.3.2.2 thorpej return (0); 97 1.3.2.2 thorpej 98 1.3.2.2 thorpej #if 1 99 1.3.2.2 thorpej /* XXX Shoot arch/arm/mainbus in the head. */ 100 1.3.2.2 thorpej return (1); 101 1.3.2.2 thorpej #else 102 1.3.2.2 thorpej if (strcmp(cf->cf_driver->cd_name, ma->ma_name) == 0) 103 1.3.2.2 thorpej return (1); 104 1.3.2.2 thorpej 105 1.3.2.2 thorpej return (0); 106 1.3.2.2 thorpej #endif 107 1.3.2.2 thorpej } 108 1.3.2.2 thorpej 109 1.3.2.2 thorpej void 110 1.3.2.2 thorpej obio_attach(struct device *parent, struct device *self, void *aux) 111 1.3.2.2 thorpej { 112 1.3.2.2 thorpej struct obio_attach_args oba; 113 1.3.2.2 thorpej int i; 114 1.3.2.2 thorpej uint8_t board_rev, cpld_rev, backplane; 115 1.3.2.2 thorpej 116 1.3.2.2 thorpej obio_found = 1; 117 1.3.2.2 thorpej 118 1.3.2.2 thorpej /* 119 1.3.2.2 thorpej * Yes, we're using knowledge of the obio bus space internals, 120 1.3.2.2 thorpej * here. 121 1.3.2.2 thorpej */ 122 1.3.2.2 thorpej board_rev = CPLD_READ(IQ80310_BOARD_REV); 123 1.3.2.2 thorpej cpld_rev = CPLD_READ(IQ80310_CPLD_REV); 124 1.3.2.2 thorpej backplane = CPLD_READ(IQ80310_BACKPLANE_DET); 125 1.3.2.2 thorpej 126 1.3.2.2 thorpej printf(": board rev. %c, CPLD rev. %c, backplane %spresent\n", 127 1.3.2.2 thorpej BOARD_REV(board_rev), CPLD_REV(cpld_rev), 128 1.3.2.2 thorpej (backplane & 1) ? "" : "not "); 129 1.3.2.2 thorpej 130 1.3.2.2 thorpej for (i = 0; obio_devices[i].od_name != NULL; i++) { 131 1.3.2.2 thorpej oba.oba_name = obio_devices[i].od_name; 132 1.3.2.2 thorpej oba.oba_st = &obio_bs_tag; 133 1.3.2.2 thorpej oba.oba_addr = obio_devices[i].od_addr; 134 1.3.2.2 thorpej oba.oba_irq = obio_devices[i].od_irq; 135 1.3.2.2 thorpej (void) config_found_sm(self, &oba, obio_print, obio_submatch); 136 1.3.2.2 thorpej } 137 1.3.2.2 thorpej } 138 1.3.2.2 thorpej 139 1.3.2.2 thorpej int 140 1.3.2.2 thorpej obio_print(void *aux, const char *pnp) 141 1.3.2.2 thorpej { 142 1.3.2.2 thorpej struct obio_attach_args *oba = aux; 143 1.3.2.2 thorpej 144 1.3.2.2 thorpej if (pnp) 145 1.3.2.2 thorpej printf("%s at %s", oba->oba_name, pnp); 146 1.3.2.2 thorpej 147 1.3.2.2 thorpej printf(" addr 0x%08lx", oba->oba_addr); 148 1.3.2.2 thorpej 149 1.3.2.2 thorpej return (UNCONF); 150 1.3.2.2 thorpej } 151 1.3.2.2 thorpej 152 1.3.2.2 thorpej int 153 1.3.2.2 thorpej obio_submatch(struct device *parent, struct cfdata *cf, void *aux) 154 1.3.2.2 thorpej { 155 1.3.2.2 thorpej struct obio_attach_args *oba = aux; 156 1.3.2.2 thorpej 157 1.3.2.2 thorpej if (cf->cf_loc[OBIOCF_ADDR] != OBIOCF_ADDR_DEFAULT && 158 1.3.2.2 thorpej cf->cf_loc[OBIOCF_ADDR] != oba->oba_addr) 159 1.3.2.2 thorpej return (0); 160 1.3.2.2 thorpej 161 1.3.2.2 thorpej return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 162 1.3.2.2 thorpej } 163
Indexes created Thu Oct 30 03:10:01 GMT 2025