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      1 /* $NetBSD: autoconf.c,v 1.15 2014/01/11 08:07:16 tsutsui Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Tohru Nishimura.
      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>			/* RCS ID & Copyright macro defns */
     33 
     34 __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.15 2014/01/11 08:07:16 tsutsui Exp $");
     35 
     36 #include <sys/param.h>
     37 #include <sys/systm.h>
     38 #include <sys/buf.h>
     39 #include <sys/conf.h>
     40 #include <sys/reboot.h>
     41 #include <sys/device.h>
     42 
     43 #include <machine/autoconf.h>
     44 #include <machine/bootinfo.h>
     45 #include <machine/disklabel.h>
     46 #include <machine/cpu.h>
     47 
     48 #include <dev/scsipi/scsi_all.h>
     49 #include <dev/scsipi/scsipi_all.h>
     50 #include <dev/scsipi/scsiconf.h>
     51 
     52 #include <luna68k/luna68k/isr.h>
     53 
     54 static uint booted_adpt, booted_ctlr, booted_unit, booted_part;
     55 
     56 /*
     57  * Determine mass storage and memory configuration for a machine.
     58  */
     59 void
     60 cpu_configure(void)
     61 {
     62 
     63 	booted_device = NULL;	/* set by device drivers (if found) */
     64 
     65 	booted_adpt = B_ADAPTOR(bootdev);
     66 	booted_ctlr = B_CONTROLLER(bootdev);
     67 	booted_unit = B_UNIT(bootdev);
     68 	booted_part = B_PARTITION(bootdev);
     69 
     70 	(void)splhigh();
     71 	isrinit();
     72 	if (config_rootfound("mainbus", NULL) == NULL)
     73 		panic("autoconfig failed, no root");
     74 
     75 	spl0();
     76 }
     77 
     78 void
     79 device_register(device_t dev, void *aux)
     80 {
     81 	static device_t booted_controller;
     82 	static bool bootdev_found;
     83 
     84 	/*
     85 	 * Check booted device.
     86 	 */
     87 	if (bootdev_found)
     88 		return;
     89 
     90 	if (booted_adpt == LUNA68K_BOOTADPT_LANCE &&
     91 	    device_is_a(dev, "le")) {
     92 		struct mainbus_attach_args *ma = aux;
     93 
     94 		if (booted_ctlr == 0 &&
     95 		    ma->ma_addr == LUNA68K_BOOTADPT_LANCE0_PA) {
     96 			booted_device = dev;
     97 			bootdev_found = true;
     98 		}
     99 		return;
    100 	}
    101 
    102 	if (booted_adpt == LUNA68K_BOOTADPT_SPC &&
    103 	    device_is_a(dev, "spc")) {
    104 		struct mainbus_attach_args *ma = aux;
    105 
    106 		if ((booted_ctlr == 0 &&
    107 		     (u_int)ma->ma_addr == LUNA68K_BOOTADPT_SPC0_PA) ||
    108 		    (booted_ctlr == 1 &&
    109 		     (u_int)ma->ma_addr == LUNA68K_BOOTADPT_SPC1_PA)) {
    110 			booted_controller = dev;
    111 		}
    112 		return;
    113 	}
    114 
    115 	if (booted_controller != NULL &&
    116 	    (device_is_a(dev, "sd") || device_is_a(dev, "cd"))) {
    117 		struct scsipibus_attach_args *sa = aux;
    118 		device_t parent = device_parent(dev);
    119 
    120 		if (device_parent(parent) != booted_controller)
    121 			return;
    122 		if (booted_unit != sa->sa_periph->periph_target)
    123 			return;
    124 		booted_device = dev;
    125 		booted_partition = booted_part;
    126 		bootdev_found = true;
    127 		return;
    128 	}
    129 }
    130 
    131 void
    132 cpu_rootconf(void)
    133 {
    134 
    135 	printf("boot device: %s\n",
    136 		(booted_device) ? device_xname(booted_device) : "<unknown>");
    137 
    138 	rootconf();
    139 }
    140