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      1 /*	$NetBSD: autoconf.c,v 1.28 2025/10/13 15:40:14 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988 University of Utah.
      5  * Copyright (c) 1992, 1993
      6  *	The Regents of the University of California.  All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * the Systems Programming Group of the University of Utah Computer
     10  * Science Department and Ralph Campbell.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  * from: Utah Hdr: autoconf.c 1.31 91/01/21
     37  *
     38  *	@(#)autoconf.c	8.1 (Berkeley) 6/10/93
     39  */
     40 
     41 #include <sys/cdefs.h>
     42 __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.28 2025/10/13 15:40:14 thorpej Exp $");
     43 
     44 #include "opt_md.h"
     45 
     46 #include <sys/param.h>
     47 #include <sys/systm.h>
     48 #include <sys/conf.h>
     49 #include <sys/disklabel.h>
     50 #include <sys/device.h>
     51 #include <sys/bus.h>
     52 
     53 #include <sh3/exception.h>
     54 #include <machine/intr.h>
     55 
     56 #include <machine/config_hook.h>
     57 #include <machine/autoconf.h>
     58 #include <machine/platid.h>
     59 #include <machine/platid_mask.h>
     60 
     61 #include <hpcsh/dev/hd64461/hd64461var.h>
     62 #include <hpcsh/dev/hd64465/hd64465var.h>
     63 
     64 static char booted_device_name[16];
     65 #ifndef MEMORY_DISK_IS_ROOT
     66 static void get_device(char *name);
     67 #endif
     68 
     69 void
     70 cpu_configure(void)
     71 {
     72 
     73 	config_hook_init();
     74 	hd6446x_intr_init();
     75 #ifdef SH3
     76 	if (CPU_IS_SH3)	/* HD64461 (Jornada 690, HP620LX, HPW-50PA) */
     77 		intc_intr_establish(SH7709_INTEVT2_IRQ4, IST_LEVEL, IPL_TTY,
     78 		    (void *)1/* fake. see intc_intr(). */, 0);
     79 #endif
     80 #ifdef SH4
     81 	if (CPU_IS_SH4)	/* HD64465 (HPW-650PA) */
     82 		intc_intr_establish(SH_INTEVT_IRL11, IST_LEVEL, IPL_TTY,
     83 		    (void *)1/* fake. see intc_intr(). */, 0);
     84 #endif
     85 
     86 	/* Kick off autoconfiguration. */
     87 	splhigh();
     88 	if (config_rootfound("mainbus", NULL) == NULL)
     89 		panic("no mainbus found");
     90 
     91 	/* Configuration is finished, turn on interrupts. */
     92 	spl0();
     93 }
     94 
     95 void
     96 cpu_rootconf(void)
     97 {
     98 
     99 #ifndef MEMORY_DISK_IS_ROOT
    100 	get_device(booted_device_name);
    101 
    102 	printf("boot device: %s\n",
    103 	       booted_device ? device_xname(booted_device) : "<unknown>");
    104 #endif
    105 	rootconf();
    106 }
    107 
    108 void
    109 makebootdev(const char *cp)
    110 {
    111 
    112 	strncpy(booted_device_name, cp, 16);
    113 }
    114 
    115 #define HPW50PAD_RTC_BASE	1996
    116 
    117 void
    118 device_register(device_t dev, void *aux)
    119 {
    120 	device_t parent;
    121 
    122 	parent = device_parent(dev);
    123 
    124 	if (device_is_a(dev, "rtc") &&
    125 	    parent != NULL && device_is_a(parent, "shb") &&
    126 	    platid_match(&platid, &platid_mask_MACH_HITACHI_PERSONA_HPW50PAD)) {
    127 		if (! device_setprop_uint(dev, "start-year",
    128 					  HPW50PAD_RTC_BASE)) {
    129 			printf("WARNING: unable to set start-year "
    130 			    "property for %s\n", device_xname(dev));
    131 		}
    132 		return;
    133 	}
    134 }
    135 
    136 #ifndef MEMORY_DISK_IS_ROOT
    137 static void
    138 get_device(char *name)
    139 {
    140 	int unit, part;
    141 	char devname[16], *cp;
    142 	device_t dv;
    143 
    144 	if (strncmp(name, "/dev/", 5) == 0)
    145 		name += 5;
    146 
    147 	if (devsw_name2blk(name, devname, sizeof(devname)) == -1)
    148 		return;
    149 
    150 	name += strlen(devname);
    151 	unit = part = 0;
    152 
    153 	cp = name;
    154 	while (*cp >= '0' && *cp <= '9')
    155 		unit = (unit * 10) + (*cp++ - '0');
    156 	if (cp == name)
    157 		return;
    158 
    159 	if (*cp >= 'a' && *cp <= ('a' + MAXPARTITIONS))
    160 		part = *cp - 'a';
    161 	else if (*cp != '\0' && *cp != ' ')
    162 		return;
    163 
    164 	if ((dv = device_find_by_driver_unit(devname, unit)) != NULL) {
    165 		booted_device = dv;
    166 		booted_partition = part;
    167 	}
    168 }
    169 #endif /* !MEMORY_DISK_IS_ROOT */
    170