166 lines
4.5 KiB
C
166 lines
4.5 KiB
C
/* $NetBSD: boot.c,v 1.10 2005/12/11 12:18:29 christos Exp $ */
|
|
/*
|
|
* Copyright (c) 1994 Rolf Grossmann
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Rolf Grossmann.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/reboot.h>
|
|
|
|
#include <lib/libsa/stand.h>
|
|
#include <lib/libsa/loadfile.h>
|
|
#include <lib/libkern/libkern.h>
|
|
|
|
#include <machine/cpu.h> /* for NEXT_RAMBASE */
|
|
|
|
#include <next68k/next68k/nextrom.h>
|
|
|
|
#define KERN_LOADADDR NEXT_RAMBASE
|
|
|
|
extern int errno;
|
|
|
|
extern char *mg;
|
|
#define MON(type, off) (*(type *)((u_int) (mg) + off))
|
|
|
|
int devparse(const char *, int *, char *, char *, char *, char **);
|
|
|
|
/* the PROM overwrites MG_boot_arg :-( */
|
|
/* #define PROCESS_ARGS */
|
|
|
|
/*
|
|
* Boot device is derived from PROM provided information.
|
|
*/
|
|
|
|
extern char bootprog_rev[];
|
|
extern char bootprog_name[];
|
|
extern int build;
|
|
#define KNAMEN 100
|
|
char kernel[KNAMEN];
|
|
int entry_point; /* return value filled in by machdep_start */
|
|
int turbo;
|
|
|
|
extern void rtc_init(void);
|
|
|
|
extern int try_bootp;
|
|
|
|
volatile int qq;
|
|
|
|
int
|
|
main(char *boot_arg)
|
|
{
|
|
int fd;
|
|
u_long marks[MARK_MAX];
|
|
int dev;
|
|
char count, lun, part;
|
|
char machine;
|
|
char *file;
|
|
#ifdef PROCESS_ARGS
|
|
char *kernel_args = MON(char *, MG_boot_dev);
|
|
#endif
|
|
|
|
machine = MON(char, MG_machine_type);
|
|
if (machine == NeXT_TURBO_MONO || machine == NeXT_TURBO_COLOR)
|
|
turbo = 1;
|
|
else
|
|
turbo = 0;
|
|
|
|
memset(marks, 0, sizeof(marks));
|
|
printf(">> %s BOOT [%s #%d]\n", bootprog_name, bootprog_rev, build);
|
|
printf(">> type %d, %sturbo\n", machine, turbo ? "" : "non-");
|
|
rtc_init();
|
|
|
|
try_bootp = 1;
|
|
|
|
#if 0
|
|
{
|
|
int i;
|
|
int *p = (int *)mg;
|
|
for (i = 0; i <= 896; ) {
|
|
printf ("%d: %x %x %x %x %x %x %x %x\n", i, p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
|
|
p = &p[8];
|
|
i += 8*4;
|
|
}
|
|
}
|
|
printf("Press return to continue.\n");
|
|
getchar();
|
|
#endif
|
|
|
|
strcpy(kernel, boot_arg);
|
|
entry_point = 0;
|
|
|
|
for (;;) {
|
|
marks[MARK_START] = (u_long)KERN_LOADADDR;
|
|
fd = loadfile(kernel, marks, LOAD_KERNEL);
|
|
if (fd != -1) {
|
|
break;
|
|
}
|
|
|
|
printf("load of %s: %s\n", kernel, strerror(errno));
|
|
printf("boot: ");
|
|
gets(kernel);
|
|
if (kernel[0] == '\0')
|
|
return 0;
|
|
|
|
#ifdef PROCESS_ARGS
|
|
kernel_args = strchr(kernel, ')');
|
|
if (kernel_args == NULL)
|
|
kernel_args = kernel;
|
|
kernel_args = strchr(kernel_args, ' ');
|
|
if (kernel_args)
|
|
*kernel_args++ = '\0';
|
|
#endif
|
|
}
|
|
|
|
dev = 0;
|
|
count = lun = part = 0;
|
|
if (devparse(kernel, &dev, &count, &lun, &part, &file) == 0) {
|
|
char *p = (char *)marks[MARK_END];
|
|
strcpy (p, devsw[dev].dv_name);
|
|
MON(char *, MG_boot_dev) = p;
|
|
p += strlen (p) + 1;
|
|
sprintf (p, "(%d,%d,%d)", count, lun, part);
|
|
MON(char *, MG_boot_info) = p;
|
|
p += strlen (p) + 1;
|
|
sprintf (p, "%s", file);
|
|
MON(char *, MG_boot_file) = p;
|
|
#ifdef PROCESS_ARGS
|
|
p += strlen (p) + 1;
|
|
if (kernel_args)
|
|
strcpy (p, kernel_args);
|
|
else
|
|
*p = 0;
|
|
MON(char *, MG_boot_arg) = p;
|
|
#endif
|
|
}
|
|
|
|
*((u_long *)KERN_LOADADDR) = marks[MARK_END] - KERN_LOADADDR;
|
|
printf("entry 0x%lx esym 0x%lx\n",
|
|
marks[MARK_ENTRY], marks[MARK_END] - KERN_LOADADDR);
|
|
return marks[MARK_ENTRY];
|
|
}
|