1 /* $NetBSD: mainbus.c,v 1.7 2020/07/07 03:38:46 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 1.7 2020/07/07 03:38:46 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 #include <evbmips/gdium/gdiumvar.h> 60 61 #include "locators.h" 62 #include "pci.h" 63 64 static int mainbus_match(device_t, cfdata_t, void *); 65 static void mainbus_attach(device_t, device_t, void *); 66 static int mainbus_print(void *, const char *); 67 68 CFATTACH_DECL_NEW(mainbus, 0, 69 mainbus_match, mainbus_attach, NULL, NULL); 70 71 /* There can be only one. */ 72 static bool mainbus_found; 73 74 const char * const mainbusdevs[] = { 75 "cpu", 76 "bonito", 77 #if 0 78 "i2c", 79 "gpio", 80 #endif 81 }; 82 83 #define PCI_IO_START 0x00001000 84 #define PCI_IO_END 0x00003fff 85 #define PCI_IO_SIZE ((PCI_IO_END - PCI_IO_START) + 1) 86 87 #define PCI_MEM_START 0 88 #define PCI_MEM_SIZE BONITO_PCILO_SIZE 89 90 static int 91 mainbus_match(device_t parent, cfdata_t match, void *aux) 92 { 93 if (mainbus_found) 94 return (0); 95 96 return (1); 97 } 98 99 static void 100 mainbus_attach(device_t parent, device_t self, void *aux) 101 { 102 size_t i; 103 104 mainbus_found = true; 105 aprint_normal("\n"); 106 107 #if defined(PCI_NETBSD_CONFIGURE) 108 struct mips_cache_info * const mci = &mips_cache_info; 109 110 struct pciconf_resources *pcires = pciconf_resource_init(); 111 pciconf_resource_add(pcires, PCICONF_RESOURCE_IO, 112 PCI_IO_START, PCI_IO_SIZE); 113 pciconf_resource_add(pcires, PCICONF_RESOURCE_MEM, 114 PCI_MEM_START, PCI_MEM_SIZE); 115 pci_configure_bus(&gdium_configuration.gc_pc, pcires, 116 0, mci->mci_dcache_align); 117 pciconf_resource_fini(pcires); 118 #endif /* PCI_NETBSD_CONFIGURE */ 119 120 for (i = 0; i < __arraycount(mainbusdevs); i++) { 121 struct mainbus_attach_args maa; 122 maa.maa_name = mainbusdevs[i]; 123 (void) config_found(self, &maa, mainbus_print); 124 } 125 } 126 127 static int 128 mainbus_print(void *aux, const char *pnp) 129 { 130 struct mainbus_attach_args *maa = aux; 131 132 if (pnp) 133 aprint_normal("%s at %s", maa->maa_name, pnp); 134 135 return UNCONF; 136 } 137