Home | History | Annotate | Line # | Download | only in bootxx
bootxx.c revision 1.1 
      1 /*	$NetBSD: bootxx.c,v 1.1 1999/12/09 14:53:23 tsutsui Exp $	*/
      2 
      3 /*-
      4  * Copyright (C) 1999 Izumi Tsutsui.  All rights reserved.
      5  * Copyright (C) 1999 Tsubai Masanari.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     27  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include <lib/libkern/libkern.h>
     31 #include <lib/libsa/stand.h>
     32 #include <machine/romcall.h>
     33 
     34 #define MAXBLOCKNUM 64
     35 
     36 void (*entry_point)() = (void *)0x3e0000;
     37 int block_size = 8192;
     38 int block_count = MAXBLOCKNUM;
     39 int block_table[MAXBLOCKNUM] = { 0 };
     40 
     41 #ifdef BOOTXX_DEBUG
     42 # define DPRINTF printf
     43 #else
     44 # define DPRINTF while (0) printf
     45 #endif
     46 
     47 char *devs[] = { "hd", "fh", "fd", NULL, NULL, "rd", "st" };
     48 
     49 void
     50 bootxx(d4, d5, d6, d7)
     51 	int d4, d5, d6, d7;
     52 {
     53 	int fd, blk, bs;
     54 	int ctlr, unit, part, type;
     55 	int i;
     56 	int bootdev = d6;
     57 	char *addr;
     58 	char devname[32];
     59 
     60 	printf("NetBSD/news68k Primary Boot\n");
     61 
     62 	DPRINTF("\n");
     63 	DPRINTF("d4 %x\n", d4);
     64 	DPRINTF("d5 %x (%s)\n", d5, (char *)d5);
     65 	DPRINTF("d6 %x\n", d6);
     66 	DPRINTF("d7 %x\n", d7);
     67 
     68 	DPRINTF("block_size  = %d\n", block_size);
     69 	DPRINTF("block_count = %d\n", block_count);
     70 	DPRINTF("entry_point = %x\n", (int)entry_point);
     71 
     72 	/* sd(ctlr, lun, part, bus?, host) */
     73 
     74 	ctlr = BOOTDEV_CTLR(bootdev);
     75 	unit = BOOTDEV_UNIT(bootdev);
     76 	part = BOOTDEV_PART(bootdev);
     77 	type = BOOTDEV_TYPE(bootdev);
     78 
     79 	if (devs[type] == NULL) {
     80 		printf("unknown bootdev (0x%x)\n", bootdev);
     81 		return;
     82 	}
     83 
     84 	sprintf(devname, "%s(%d,%d,%d)", devs[type], ctlr, unit, part);
     85 
     86 	fd = rom_open(devname, 0);
     87 	if (fd == -1) {
     88 		printf("cannot open %s\n", devname);
     89 		return;
     90 	}
     91 
     92 	addr = (char *)entry_point;
     93 	bs = block_size;
     94 	DPRINTF("reading block:");
     95 	for (i = 0; i < block_count; i++) {
     96 		blk = block_table[i];
     97 
     98 		DPRINTF(" %d", blk);
     99 
    100 		rom_lseek(fd, blk * 512, 0);
    101 		rom_read(fd, addr, bs);
    102 		addr += bs;
    103 	}
    104 	DPRINTF(" done\n");
    105 	rom_close(fd);
    106 
    107 	(*entry_point)(d4, d5, d6, d7);
    108 	DPRINTF("bootxx returned?\n");
    109 }
    110