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      1 /*	$NetBSD: bonito_mainbus.c,v 1.19 2021/08/07 16:18:40 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: bonito_mainbus.c,v 1.19 2021/08/07 16:18:40 thorpej Exp $");
     34 
     35 #include "opt_algor_p6032.h"
     36 
     37 #include <sys/param.h>
     38 #include <sys/bus.h>
     39 #include <sys/conf.h>
     40 #include <sys/device.h>
     41 #include <sys/reboot.h>
     42 #include <sys/systm.h>
     43 
     44 #include <algor/autoconf.h>
     45 
     46 #include <mips/cpuregs.h>
     47 #include <mips/bonito/bonitoreg.h>
     48 
     49 #ifdef ALGOR_P6032
     50 #include <algor/algor/algor_p6032var.h>
     51 #endif
     52 
     53 struct bonito_softc {
     54 	struct bonito_config *sc_bonito;
     55 };
     56 
     57 int	bonito_mainbus_match(device_t, cfdata_t, void *);
     58 void	bonito_mainbus_attach(device_t, device_t, void *);
     59 
     60 CFATTACH_DECL_NEW(bonito_mainbus, sizeof(struct bonito_softc),
     61     bonito_mainbus_match, bonito_mainbus_attach, NULL, NULL);
     62 extern struct cfdriver bonito_cd;
     63 
     64 int
     65 bonito_mainbus_match(device_t parent, cfdata_t cf, void *aux)
     66 {
     67 	struct mainbus_attach_args *ma = aux;
     68 
     69 	if (strcmp(ma->ma_name, bonito_cd.cd_name) == 0)
     70 		return (1);
     71 
     72 	return (0);
     73 }
     74 
     75 void
     76 bonito_mainbus_attach(device_t parent, device_t self, void *aux)
     77 {
     78 	struct bonito_softc *sc = device_private(self);
     79 	struct pcibus_attach_args pba;
     80 	struct bonito_config *bc;
     81 	pcireg_t rev;
     82 
     83 	/*
     84 	 * There is only one PCI controller on an Algorithmics board.
     85 	 */
     86 #if defined(ALGOR_P6032)
     87 	bc = &p6032_configuration.ac_bonito;
     88 #else
     89 	/* I guess... XXX? */
     90 	bc = NULL;
     91 #endif
     92 	sc->sc_bonito = bc;
     93 
     94 	rev = PCI_REVISION(REGVAL(BONITO_PCICLASS));
     95 
     96 	printf(": BONITO Memory and PCI controller, %s rev. %d.%d\n",
     97 	    BONITO_REV_FPGA(rev) ? "FPGA" : "ASIC",
     98 	    BONITO_REV_MAJOR(rev), BONITO_REV_MINOR(rev));
     99 
    100 	pba.pba_flags = PCI_FLAGS_IO_OKAY | PCI_FLAGS_MEM_OKAY;
    101 	pba.pba_bus = 0;
    102 	pba.pba_bridgetag = NULL;
    103 
    104 #if defined(ALGOR_P6032)
    105 	    {
    106 		struct p6032_config *acp = &p6032_configuration;
    107 
    108 		pba.pba_iot = &acp->ac_iot;
    109 		pba.pba_memt = &acp->ac_memt;
    110 		pba.pba_dmat = &acp->ac_pci_dmat;
    111 		pba.pba_dmat64 = NULL;
    112 		pba.pba_pc = &acp->ac_pc;
    113 	    }
    114 #endif /* ALGOR_P6032 */
    115 
    116 	config_found(self, &pba, pcibusprint, CFARGS_NONE);
    117 }
    118