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bonito_mainbus.c revision 1.3.68.1 
      1 /*	$NetBSD: bonito_mainbus.c,v 1.3.68.1 2021/03/23 07:14:46 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 1.3.68.1 2021/03/23 07:14:46 thorpej Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/conf.h>
     38 #include <sys/reboot.h>
     39 #include <sys/device.h>
     40 
     41 #include <sys/bus.h>
     42 
     43 #include <mips/bonito/bonitoreg.h>
     44 
     45 #include <evbmips/gdium/gdiumvar.h>
     46 
     47 static int	bonito_mainbus_match(device_t, cfdata_t, void *);
     48 static void	bonito_mainbus_attach(device_t, device_t, void *);
     49 
     50 CFATTACH_DECL_NEW(bonito_mainbus, 0,
     51     bonito_mainbus_match, bonito_mainbus_attach, NULL, NULL);
     52 
     53 extern struct cfdriver bonito_cd;
     54 
     55 int
     56 bonito_mainbus_match(device_t parent, cfdata_t cf, void *aux)
     57 {
     58 	struct mainbus_attach_args * const maa = aux;
     59 
     60 	if (strcmp(maa->maa_name, bonito_cd.cd_name) == 0)
     61 		return (1);
     62 
     63 	return (0);
     64 }
     65 
     66 void
     67 bonito_mainbus_attach(device_t parent, device_t self, void *aux)
     68 {
     69 	struct pcibus_attach_args pba;
     70 	struct gdium_config * const gc = &gdium_configuration;
     71 	pcireg_t rev;
     72 
     73 	self->dv_private = &gc->gc_bonito;
     74 
     75 	/*
     76 	 * There is only one PCI controller on a Loongson chip.
     77 	 */
     78 
     79 	rev = PCI_REVISION(REGVAL(BONITO_PCICLASS));
     80 
     81 	printf(": BONITO Memory and PCI controller, %s rev. %d.%d\n",
     82 	    BONITO_REV_FPGA(rev) ? "FPGA" : "ASIC",
     83 	    BONITO_REV_MAJOR(rev), BONITO_REV_MINOR(rev));
     84 
     85 	pba.pba_flags = PCI_FLAGS_IO_OKAY | PCI_FLAGS_MEM_OKAY;
     86 	pba.pba_bus = 0;
     87 	pba.pba_bridgetag = NULL;
     88 
     89 	pba.pba_iot = &gc->gc_iot;
     90 	pba.pba_memt = &gc->gc_memt;
     91 	pba.pba_dmat = &gc->gc_pci_dmat;
     92 	pba.pba_dmat64 = NULL;
     93 	pba.pba_pc = &gc->gc_pc;
     94 
     95 	config_found(self, &pba, pcibusprint, CFARG_EOL);
     96 }
     97