1/* $NetBSD: mainbus.c,v 1.11 2009/03/14 15:36:06 dsl 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: mainbus.c,v 1.11 2009/03/14 15:36:06 dsl Exp $"); 40 41#include "opt_pci.h" 42 43#include <sys/param.h> 44#include <sys/systm.h> 45#include <sys/device.h> 46#if defined(PCI_NETBSD_CONFIGURE) 47#include <sys/extent.h> 48#include <sys/malloc.h> 49#endif 50 51#include <dev/pci/pcivar.h> 52#if defined(PCI_NETBSD_CONFIGURE) 53#include <dev/pci/pciconf.h> 54#endif 55 56#include <mips/cache.h> 57#include <mips/cpuregs.h> 58 59#include <evbmips/malta/autoconf.h> 60#include <evbmips/malta/maltareg.h> 61#include <evbmips/malta/maltavar.h> 62 63#if defined(PCI_NETBSD_ENABLE_IDE) 64#include <dev/pci/pciide_piix_reg.h> 65#endif /* PCI_NETBSD_ENABLE_IDE */ 66 67#include "locators.h" 68#include "pci.h" 69 70static int mainbus_match(device_t, cfdata_t, void *); 71static void mainbus_attach(device_t, device_t, void *); 72static int mainbus_submatch(device_t, cfdata_t, const int *, void *); 73static int mainbus_print(void *, const char *); 74 75CFATTACH_DECL_NEW(mainbus, 0, 76 mainbus_match, mainbus_attach, NULL, NULL); 77 78/* There can be only one. */ 79bool mainbus_found; 80 81struct mainbusdev { 82 const char *md_name; 83 bus_addr_t md_addr; 84 int md_intr; 85}; 86 87const struct mainbusdev mainbusdevs[] = { 88 { "cpu", -1, -1 }, 89 { "gt", MALTA_CORECTRL_BASE, -1 }, 90 { "com", MALTA_CBUSUART, MALTA_CBUSUART_INTR }, 91 { "i2c", MALTA_I2C_BASE, -1 }, 92 { "gpio", MALTA_GPIO_BASE, -1 }, 93 { NULL, 0, 0 }, 94}; 95 96static int 97mainbus_match(device_t parent, cfdata_t match, void *aux) 98{ 99 100 if (mainbus_found) 101 return (0); 102 103 return (1); 104} 105 106static void 107mainbus_attach(device_t parent, device_t self, void *aux) 108{ 109 struct mainbus_attach_args ma; 110 const struct mainbusdev *md; 111#if defined(PCI_NETBSD_CONFIGURE) 112 struct extent *ioext, *memext; 113#endif 114#if defined(PCI_NETBSD_ENABLE_IDE) 115 struct malta_config *mcp = &malta_configuration; 116 pci_chipset_tag_t pc = &mcp->mc_pc; 117 pcitag_t idetag; 118 pcireg_t idetim; 119#endif 120 121 mainbus_found = true; 122 printf("\n"); 123 124#if defined(PCI_NETBSD_CONFIGURE) 125 ioext = extent_create("pciio", 0x00001000, 0x0000efff, 126 M_DEVBUF, NULL, 0, EX_NOWAIT); 127 memext = extent_create("pcimem", MALTA_PCIMEM1_BASE, 128 MALTA_PCIMEM1_BASE + MALTA_PCIMEM1_SIZE, 129 M_DEVBUF, NULL, 0, EX_NOWAIT); 130 131 pci_configure_bus(pc, ioext, memext, NULL, 0, mips_dcache_align); 132 extent_destroy(ioext); 133 extent_destroy(memext); 134#endif /* PCI_NETBSD_CONFIGURE */ 135 136#if defined(PCI_NETBSD_ENABLE_IDE) 137 /* 138 * Perhaps PMON has not enabled the IDE controller. Easy to 139 * fix -- just set the ENABLE bits for each channel in the 140 * IDETIM register. Just clear all the bits for the channel 141 * except for the ENABLE bits -- the `pciide' driver will 142 * properly configure it later. 143 */ 144 idetim = 0; 145 if (PCI_NETBSD_ENABLE_IDE & 0x01) 146 idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 0); 147 if (PCI_NETBSD_ENABLE_IDE & 0x02) 148 idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 1); 149 150 /* pciide0 is pci device 10, function 1 */ 151 idetag = pci_make_tag(pc, 0, 10, 1); 152 pci_conf_write(pc, idetag, PIIX_IDETIM, idetim); 153#endif 154 for (md = mainbusdevs; md->md_name != NULL; md++) { 155 ma.ma_name = md->md_name; 156 ma.ma_addr = md->md_addr; 157 ma.ma_intr = md->md_intr; 158 (void) config_found_sm_loc(self, "mainbus", NULL, &ma, 159 mainbus_print, mainbus_submatch); 160 } 161} 162 163static int 164mainbus_submatch(device_t parent, cfdata_t cf, 165 const int *ldesc, void *aux) 166{ 167 struct mainbus_attach_args *ma = aux; 168 169 if (cf->cf_loc[MAINBUSCF_ADDR] != MAINBUSCF_ADDR_DEFAULT && 170 cf->cf_loc[MAINBUSCF_ADDR] != ma->ma_addr) 171 return (0); 172 173 return (config_match(parent, cf, aux)); 174} 175 176static int 177mainbus_print(void *aux, const char *pnp) 178{ 179 struct mainbus_attach_args *ma = aux; 180 181 if (pnp != 0) 182 return QUIET; 183 184 if (pnp) 185 aprint_normal("%s at %s", ma->ma_name, pnp); 186 if (ma->ma_addr != MAINBUSCF_ADDR_DEFAULT) 187 aprint_normal(" addr 0x%lx", ma->ma_addr); 188 189 return (UNCONF); 190} 191