1 /* $NetBSD: mainbus.c,v 1.6 2021/08/07 16:18:51 thorpej 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 1.6 2021/08/07 16:18:51 thorpej 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/malloc.h> 48 #endif 49 50 #include <dev/pci/pcivar.h> 51 #if defined(PCI_NETBSD_CONFIGURE) 52 #include <dev/pci/pciconf.h> 53 #endif 54 55 #include <mips/cache.h> 56 #include <mips/cpuregs.h> 57 58 #include <mips/bonito/bonitoreg.h> 59 60 #include <evbmips/loongson/autoconf.h> 61 #if defined(PCI_NETBSD_CONFIGURE) 62 #include <evbmips/loongson/loongson_bus_defs.h> 63 #endif 64 65 #include "locators.h" 66 #include "pci.h" 67 68 static int mainbus_match(device_t, cfdata_t, void *); 69 static void mainbus_attach(device_t, device_t, void *); 70 static int mainbus_print(void *, const char *); 71 72 CFATTACH_DECL_NEW(mainbus, 0, 73 mainbus_match, mainbus_attach, NULL, NULL); 74 75 /* There can be only one. */ 76 static bool mainbus_found; 77 78 const char * const mainbusdevs[] = { 79 "cpu", 80 "bonito", 81 #if 0 82 "i2c", 83 "gpio", 84 #endif 85 }; 86 87 #define PCI_IO_START 0x00001000 88 #define PCI_IO_END 0x00003fff 89 #define PCI_IO_SIZE ((PCI_IO_END - PCI_IO_START) + 1) 90 91 #define PCI_MEM_START 0 92 #define PCI_MEM_SIZE BONITO_PCILO_SIZE 93 94 static int 95 mainbus_match(device_t parent, cfdata_t match, void *aux) 96 { 97 if (mainbus_found) 98 return (0); 99 100 return (1); 101 } 102 103 static void 104 mainbus_attach(device_t parent, device_t self, void *aux) 105 { 106 size_t i; 107 108 mainbus_found = true; 109 aprint_normal("\n"); 110 111 #if defined(PCI_NETBSD_CONFIGURE) 112 struct mips_cache_info * const mci = &mips_cache_info; 113 struct pciconf_resources *pcires = pciconf_resource_init(); 114 115 pciconf_resource_add(pcires, PCICONF_RESOURCE_IO, 116 PCI_IO_START, PCI_IO_SIZE); 117 pciconf_resource_add(pcires, PCICONF_RESOURCE_MEM, 118 PCI_MEM_START, PCI_MEM_SIZE); 119 120 pci_configure_bus(&bonito_pc, pcires, 0, mci->mci_dcache_align); 121 pciconf_resource_fini(pcires); 122 #endif /* PCI_NETBSD_CONFIGURE */ 123 124 for (i = 0; i < __arraycount(mainbusdevs); i++) { 125 struct mainbus_attach_args maa; 126 maa.maa_name = mainbusdevs[i]; 127 (void) config_found(self, &maa, mainbus_print, CFARGS_NONE); 128 } 129 } 130 131 static int 132 mainbus_print(void *aux, const char *pnp) 133 { 134 struct mainbus_attach_args *maa = aux; 135 136 if (pnp) 137 aprint_normal("%s at %s", maa->maa_name, pnp); 138 139 return UNCONF; 140 } 141