mainbus.c revision 1.1
1/* $NetBSD: mainbus.c,v 1.1 2002/03/07 14:44:05 simonb 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 "opt_pci.h" 39 40#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/device.h> 43#if defined(PCI_NETBSD_CONFIGURE) 44#include <sys/extent.h> 45#include <sys/malloc.h> 46#endif 47 48#include <dev/pci/pcivar.h> 49#if defined(PCI_NETBSD_CONFIGURE) 50#include <dev/pci/pciconf.h> 51#endif 52 53#include <mips/cache.h> 54#include <mips/cpuregs.h> 55 56#include <evbmips/malta/autoconf.h> 57#include <evbmips/malta/maltareg.h> 58#include <evbmips/malta/maltavar.h> 59 60#if defined(PCI_NETBSD_ENABLE_IDE) 61#include <dev/pci/pciide_piix_reg.h> 62#endif /* PCI_NETBSD_ENABLE_IDE */ 63 64#include "locators.h" 65#include "pci.h" 66 67static int mainbus_match(struct device *, struct cfdata *, void *); 68static void mainbus_attach(struct device *, struct device *, void *); 69static int mainbus_submatch(struct device *, struct cfdata *, void *); 70static int mainbus_print(void *, const char *); 71 72struct cfattach mainbus_ca = { 73 sizeof(struct device), mainbus_match, mainbus_attach 74}; 75 76/* There can be only one. */ 77int mainbus_found; 78 79struct mainbusdev { 80 const char *md_name; 81 bus_addr_t md_addr; 82 int md_intr; 83}; 84 85struct mainbusdev mainbusdevs[] = { 86 { "cpu", -1, -1 }, 87 { "gt", MALTA_CORECTRL_BASE, -1 }, 88 { "com", MALTA_CBUSUART, MALTA_CBUSUART_INTR }, 89 { "i2c", MALTA_I2C_BASE, -1 }, 90 { "gpio", MALTA_GPIO_BASE, -1 }, 91 { NULL, 0, 0 }, 92}; 93 94static int 95mainbus_match(parent, match, aux) 96 struct device *parent; 97 struct cfdata *match; 98 void *aux; 99{ 100 101 if (mainbus_found) 102 return (0); 103 104 return (1); 105} 106 107static void 108mainbus_attach(parent, self, aux) 109 struct device *parent; 110 struct device *self; 111 void *aux; 112{ 113 struct mainbus_attach_args ma; 114 struct mainbusdev *md; 115#if defined(PCI_NETBSD_CONFIGURE) 116 struct extent *ioext, *memext; 117#endif 118#if defined(PCI_NETBSD_ENABLE_IDE) 119 struct malta_config *mcp = &malta_configuration; 120 pci_chipset_tag_t pc = &mcp->mc_pc; 121 pcitag_t idetag; 122 pcireg_t idetim; 123#endif 124 125 mainbus_found = 1; 126 printf("\n"); 127 128#if defined(PCI_NETBSD_CONFIGURE) 129 ioext = extent_create("pciio", 0x00001000, 0x0000efff, 130 M_DEVBUF, NULL, 0, EX_NOWAIT); 131 memext = extent_create("pcimem", MALTA_PCIMEM1_BASE, 132 MALTA_PCIMEM1_BASE + MALTA_PCIMEM1_SIZE, 133 M_DEVBUF, NULL, 0, EX_NOWAIT); 134 135 pci_configure_bus(pc, ioext, memext, NULL, 0, mips_dcache_align); 136 extent_destroy(ioext); 137 extent_destroy(memext); 138#endif /* PCI_NETBSD_CONFIGURE */ 139 140#if defined(PCI_NETBSD_ENABLE_IDE) 141 /* 142 * Perhaps PMON has not enabled the IDE controller. Easy to 143 * fix -- just set the ENABLE bits for each channel in the 144 * IDETIM register. Just clear all the bits for the channel 145 * except for the ENABLE bits -- the `pciide' driver will 146 * properly configure it later. 147 */ 148 idetim = 0; 149 if (PCI_NETBSD_ENABLE_IDE & 0x01) 150 idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 0); 151 if (PCI_NETBSD_ENABLE_IDE & 0x02) 152 idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 1); 153 154 /* pciide0 is pci device 10, function 1 */ 155 idetag = pci_make_tag(pc, 0, 10, 1); 156 pci_conf_write(pc, idetag, PIIX_IDETIM, idetim); 157#endif 158 for (md = mainbusdevs; md->md_name != NULL; md++) { 159 ma.ma_name = md->md_name; 160 ma.ma_addr = md->md_addr; 161 ma.ma_intr = md->md_intr; 162 (void) config_found_sm(self, &ma, mainbus_print, 163 mainbus_submatch); 164 } 165} 166 167static int 168mainbus_submatch(struct device *parent, struct cfdata *cf, void *aux) 169{ 170 struct mainbus_attach_args *ma = aux; 171 172 if (cf->cf_loc[MAINBUSCF_ADDR] != MAINBUSCF_ADDR_DEFAULT && 173 cf->cf_loc[MAINBUSCF_ADDR] != ma->ma_addr) 174 return (0); 175 176 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 177} 178 179static int 180mainbus_print(void *aux, const char *pnp) 181{ 182 struct mainbus_attach_args *ma = aux; 183 184 if (pnp != 0) 185 return QUIET; 186 187 if (pnp) 188 printf("%s at %s", ma->ma_name, pnp); 189 if (ma->ma_addr != MAINBUSCF_ADDR_DEFAULT) 190 printf(" addr 0x%lx", ma->ma_addr); 191 192 return (UNCONF); 193} 194