Home | History | Annotate | Line # | Download | only in bootxx 
      1 /*	$NetBSD: bootxx.c,v 1.11 2014/03/29 05:07:25 ozaki-r Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999 Izumi Tsutsui.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 /*-
     28  * Copyright (C) 1999 Tsubai Masanari.  All rights reserved.
     29  *
     30  * Redistribution and use in source and binary forms, with or without
     31  * modification, are permitted provided that the following conditions
     32  * are met:
     33  * 1. Redistributions of source code must retain the above copyright
     34  *    notice, this list of conditions and the following disclaimer.
     35  * 2. Redistributions in binary form must reproduce the above copyright
     36  *    notice, this list of conditions and the following disclaimer in the
     37  *    documentation and/or other materials provided with the distribution.
     38  * 3. The name of the author may not be used to endorse or promote products
     39  *    derived from this software without specific prior written permission.
     40  *
     41  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     42  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     43  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     44  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     45  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     47  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     48  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     49  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     50  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     51  */
     52 
     53 #include <lib/libkern/libkern.h>
     54 #include <lib/libsa/stand.h>
     55 #include <machine/romcall.h>
     56 
     57 #include <sys/bootblock.h>
     58 
     59 void bootxx(uint32_t, uint32_t, uint32_t, uint32_t);
     60 
     61 struct shared_bbinfo bbinfo = {
     62 	{ NEWS68K_BBINFO_MAGIC },	/* bbi_magic[] */
     63 	0,				/* bbi_block_size */
     64 	SHARED_BBINFO_MAXBLOCKS,	/* bbi_block_count */
     65 	{ 0 },				/* bbi_block_table[] */
     66 };
     67 
     68 #ifndef DEFAULT_ENTRY_POINT
     69 #define DEFAULT_ENTRY_POINT	0x003e0000
     70 #endif
     71 void (*entry_point)(uint32_t, uint32_t, uint32_t, uint32_t) =
     72     (void *)DEFAULT_ENTRY_POINT;
     73 
     74 #ifdef BOOTXX_DEBUG
     75 # define DPRINTF printf
     76 #else
     77 # define DPRINTF while (0) printf
     78 #endif
     79 
     80 char *devs[] = { "hd", "fh", "fd", NULL, NULL, "rd", "st" };
     81 
     82 void
     83 bootxx(uint32_t d4, uint32_t d5, uint32_t d6, uint32_t d7)
     84 {
     85 	int fd, blk, bs;
     86 	int ctlr, unit, part, type;
     87 	int i;
     88 	int bootdev = d6;
     89 	char *addr;
     90 	char devname[32];
     91 
     92 	printf("NetBSD/news68k Primary Boot\n");
     93 
     94 	DPRINTF("\n");
     95 	DPRINTF("d4 %x\n", d4);
     96 	DPRINTF("d5 %x (%s)\n", d5, (char *)d5);
     97 	DPRINTF("d6 %x\n", d6);
     98 	DPRINTF("d7 %x\n", d7);
     99 
    100 	DPRINTF("block_size  = %d\n", bbinfo.bbi_block_size);
    101 	DPRINTF("block_count = %d\n", bbinfo.bbi_block_count);
    102 	DPRINTF("entry_point = %p\n", entry_point);
    103 
    104 	/* sd(ctlr, lun, part, bus?, host) */
    105 
    106 	ctlr = BOOTDEV_CTLR(bootdev);
    107 	unit = BOOTDEV_UNIT(bootdev);
    108 	part = BOOTDEV_PART(bootdev);
    109 	type = BOOTDEV_TYPE(bootdev);
    110 
    111 	if (devs[type] == NULL) {
    112 		printf("unknown bootdev (0x%x)\n", bootdev);
    113 		return;
    114 	}
    115 
    116 	snprintf(devname, sizeof(devname), "%s(%d,%d,%d)",
    117 	    devs[type], ctlr, unit, part);
    118 
    119 	fd = rom_open(devname, 0);
    120 	if (fd == -1) {
    121 		printf("cannot open %s\n", devname);
    122 		return;
    123 	}
    124 
    125 	addr = (char *)entry_point;
    126 	bs = bbinfo.bbi_block_size;
    127 	DPRINTF("reading block:");
    128 	for (i = 0; i < bbinfo.bbi_block_count; i++) {
    129 		blk = bbinfo.bbi_block_table[i];
    130 
    131 		DPRINTF(" %d", blk);
    132 
    133 		rom_lseek(fd, blk * 512, 0);
    134 		rom_read(fd, addr, bs);
    135 		addr += bs;
    136 	}
    137 	DPRINTF(" done\n");
    138 	rom_close(fd);
    139 
    140 	(*entry_point)(d4, d5, d6, d7);
    141 	DPRINTF("bootxx returned?\n");
    142 }
    143