Home | History | Annotate | Line # | Download | only in bootxx
bootxx.c revision 1.4 
      1 /*	$NetBSD: bootxx.c,v 1.4 2002/05/20 14:05:22 lukem 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 #include <sys/bootblock.h>
     35 
     36 struct shared_bbinfo bbinfo = {
     37 	{ NEWS68K_BBINFO_MAGIC },	/* bbi_magic[] */
     38 	0,				/* bbi_block_size */
     39 	SHARED_BBINFO_MAXBLOCKS,	/* bbi_block_count */
     40 	{ 0 },				/* bbi_block_table[] */
     41 };
     42 
     43 #ifndef DEFAULT_ENTRY_POINT
     44 #define DEFAULT_ENTRY_POINT	0x003e0000
     45 #endif
     46 void (*entry_point)(u_int32_t, u_int32_t, u_int32_t, u_int32_t) =
     47     (void *)DEFAULT_ENTRY_POINT;
     48 
     49 #ifdef BOOTXX_DEBUG
     50 # define DPRINTF(x) printf x
     51 #else
     52 # define DPRINTF(x)
     53 #endif
     54 
     55 char *devs[] = { "hd", "fh", "fd", NULL, NULL, "rd", "st" };
     56 
     57 void
     58 bootxx(d4, d5, d6, d7)
     59 	int d4, d5, d6, d7;
     60 {
     61 	int fd, blk, bs;
     62 	int ctlr, unit, part, type;
     63 	int i;
     64 	int bootdev = d6;
     65 	char *addr;
     66 	char devname[32];
     67 
     68 	printf("NetBSD/news68k Primary Boot\n");
     69 
     70 	DPRINTF(("\n"));
     71 	DPRINTF(("d4 %x\n", d4));
     72 	DPRINTF(("d5 %x (%s)\n", d5, (char *)d5));
     73 	DPRINTF(("d6 %x\n", d6));
     74 	DPRINTF(("d7 %x\n", d7));
     75 
     76 	DPRINTF(("block_size  = %d\n", bbinfo.bbi_block_size));
     77 	DPRINTF(("block_count = %d\n", bbinfo.bbi_block_count));
     78 	DPRINTF(("entry_point = %p\n", entry_point));
     79 
     80 	/* sd(ctlr, lun, part, bus?, host) */
     81 
     82 	ctlr = BOOTDEV_CTLR(bootdev);
     83 	unit = BOOTDEV_UNIT(bootdev);
     84 	part = BOOTDEV_PART(bootdev);
     85 	type = BOOTDEV_TYPE(bootdev);
     86 
     87 	if (devs[type] == NULL) {
     88 		printf("unknown bootdev (0x%x)\n", bootdev);
     89 		return;
     90 	}
     91 
     92 	sprintf(devname, "%s(%d,%d,%d)", devs[type], ctlr, unit, part);
     93 
     94 	fd = rom_open(devname, 0);
     95 	if (fd == -1) {
     96 		printf("cannot open %s\n", devname);
     97 		return;
     98 	}
     99 
    100 	addr = (char *)entry_point;
    101 	bs = bbinfo.bbi_block_size;
    102 	DPRINTF(("reading block:"));
    103 	for (i = 0; i < bbinfo.bbi_block_count; i++) {
    104 		blk = bbinfo.bbi_block_table[i];
    105 
    106 		DPRINTF((" %d", blk));
    107 
    108 		rom_lseek(fd, blk * 512, 0);
    109 		rom_read(fd, addr, bs);
    110 		addr += bs;
    111 	}
    112 	DPRINTF((" done\n"));
    113 	rom_close(fd);
    114 
    115 	(*entry_point)(d4, d5, d6, d7);
    116 	DPRINTF(("bootxx returned?\n"));
    117 }
    118