1 1.6 riastrad /* $NetBSD: bonito_mainbus.c,v 1.6 2022/03/03 06:27:21 riastradh Exp $ */ 2 1.1 bouyer 3 1.1 bouyer /*- 4 1.1 bouyer * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 1.1 bouyer * All rights reserved. 6 1.1 bouyer * 7 1.1 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.1 bouyer * by Jason R. Thorpe. 9 1.1 bouyer * 10 1.1 bouyer * Redistribution and use in source and binary forms, with or without 11 1.1 bouyer * modification, are permitted provided that the following conditions 12 1.1 bouyer * are met: 13 1.1 bouyer * 1. Redistributions of source code must retain the above copyright 14 1.1 bouyer * notice, this list of conditions and the following disclaimer. 15 1.1 bouyer * 2. Redistributions in binary form must reproduce the above copyright 16 1.1 bouyer * notice, this list of conditions and the following disclaimer in the 17 1.1 bouyer * documentation and/or other materials provided with the distribution. 18 1.1 bouyer * 19 1.1 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.1 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.1 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.1 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.1 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.1 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.1 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.1 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.1 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.1 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.1 bouyer * POSSIBILITY OF SUCH DAMAGE. 30 1.1 bouyer */ 31 1.1 bouyer 32 1.1 bouyer #include <sys/cdefs.h> 33 1.6 riastrad __KERNEL_RCSID(0, "$NetBSD: bonito_mainbus.c,v 1.6 2022/03/03 06:27:21 riastradh Exp $"); 34 1.1 bouyer 35 1.1 bouyer #include <sys/param.h> 36 1.1 bouyer #include <sys/systm.h> 37 1.1 bouyer #include <sys/conf.h> 38 1.1 bouyer #include <sys/reboot.h> 39 1.1 bouyer #include <sys/device.h> 40 1.1 bouyer 41 1.1 bouyer #include <sys/bus.h> 42 1.1 bouyer 43 1.3 macallan #include <mips/cpuregs.h> 44 1.1 bouyer #include <mips/bonito/bonitoreg.h> 45 1.1 bouyer 46 1.1 bouyer #include <evbmips/loongson/autoconf.h> 47 1.1 bouyer #include <evbmips/loongson/loongson_bus_defs.h> 48 1.1 bouyer #include <dev/pci/pcivar.h> 49 1.1 bouyer 50 1.1 bouyer static int bonito_mainbus_match(device_t, cfdata_t, void *); 51 1.1 bouyer static void bonito_mainbus_attach(device_t, device_t, void *); 52 1.1 bouyer 53 1.1 bouyer CFATTACH_DECL_NEW(bonito_mainbus, 0, 54 1.1 bouyer bonito_mainbus_match, bonito_mainbus_attach, NULL, NULL); 55 1.1 bouyer 56 1.1 bouyer extern struct cfdriver bonito_cd; 57 1.1 bouyer 58 1.1 bouyer int 59 1.1 bouyer bonito_mainbus_match(device_t parent, cfdata_t cf, void *aux) 60 1.1 bouyer { 61 1.1 bouyer struct mainbus_attach_args * const maa = aux; 62 1.1 bouyer 63 1.1 bouyer if (strcmp(maa->maa_name, bonito_cd.cd_name) == 0) 64 1.1 bouyer return (1); 65 1.1 bouyer 66 1.1 bouyer return (0); 67 1.1 bouyer } 68 1.1 bouyer 69 1.1 bouyer void 70 1.1 bouyer bonito_mainbus_attach(device_t parent, device_t self, void *aux) 71 1.1 bouyer { 72 1.1 bouyer struct pcibus_attach_args pba; 73 1.1 bouyer pcireg_t rev; 74 1.2 nonaka bool compatible; 75 1.1 bouyer 76 1.6 riastrad device_set_private(self, __UNCONST(&sys_platform->bonito_config)); 77 1.1 bouyer 78 1.1 bouyer /* 79 1.2 nonaka * Loongson 2F processors do not use a real Bonito64 chip but 80 1.2 nonaka * their own derivative, which is no longer 100% compatible. 81 1.2 nonaka * We need to make sure we never try to access an unimplemented 82 1.2 nonaka * register... 83 1.2 nonaka */ 84 1.2 nonaka if (loongson_ver >= 0x2f) 85 1.2 nonaka compatible = false; 86 1.2 nonaka else 87 1.2 nonaka compatible = true; 88 1.2 nonaka 89 1.2 nonaka /* 90 1.1 bouyer * There is only one PCI controller on a Loongson chip. 91 1.1 bouyer */ 92 1.1 bouyer 93 1.1 bouyer rev = PCI_REVISION(REGVAL(BONITO_PCICLASS)); 94 1.2 nonaka if (compatible) { 95 1.2 nonaka aprint_normal(": BONITO Memory and PCI controller," 96 1.2 nonaka " %s rev. %d.%d\n", BONITO_REV_FPGA(rev) ? "FPGA" : "ASIC", 97 1.2 nonaka BONITO_REV_MAJOR(rev), BONITO_REV_MINOR(rev)); 98 1.2 nonaka } else { 99 1.2 nonaka aprint_normal(": Memory and PCI-X controller, rev. %d\n", 100 1.2 nonaka PCI_REVISION(rev)); 101 1.2 nonaka } 102 1.1 bouyer 103 1.2 nonaka /* 104 1.2 nonaka * Attach PCI bus. 105 1.2 nonaka */ 106 1.1 bouyer 107 1.1 bouyer pba.pba_flags = PCI_FLAGS_IO_OKAY | PCI_FLAGS_MEM_OKAY; 108 1.1 bouyer pba.pba_bus = 0; 109 1.1 bouyer pba.pba_bridgetag = NULL; 110 1.1 bouyer 111 1.1 bouyer pba.pba_iot = &bonito_iot; 112 1.1 bouyer pba.pba_memt = &bonito_memt; 113 1.1 bouyer pba.pba_dmat = &bonito_dmat; 114 1.1 bouyer pba.pba_dmat64 = NULL; 115 1.1 bouyer pba.pba_pc = &bonito_pc; 116 1.1 bouyer 117 1.5 thorpej config_found(self, &pba, pcibusprint, CFARGS_NONE); 118 1.1 bouyer } 119