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bootxx.c revision 1.4 
      1 /*	$NetBSD: bootxx.c,v 1.4 2002/05/20 14:12:24 lukem Exp $	*/
      2 
      3 /*-
      4  * Copyright (C) 1999 Tsubai Masanari.  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  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <lib/libkern/libkern.h>
     30 #include <lib/libsa/stand.h>
     31 #include <machine/apcall.h>
     32 #include <machine/romcall.h>
     33 
     34 #include <sys/bootblock.h>
     35 
     36 struct shared_bbinfo bbinfo = {
     37 	{ NEWSMIPS_BBINFO_MAGIC },	/* bbi_magic[] */
     38 	0,				/* bbi_block_size */
     39 	SHARED_BBINFO_MAXBLOCKS,	/* bbi_block_count */
     40 	{ 0 }				/* bbi_block_tagle[] */
     41 };
     42 
     43 #ifndef DEFAULT_ENTRY_POINT
     44 #define DEFAULT_ENTRY_POINT	0xa0700000
     45 #endif
     46 
     47 void (*entry_point)(u_int32_t, u_int32_t, u_int32_t, u_int32_t, void *) =
     48     (void *)DEFAULT_ENTRY_POINT;
     49 
     50 #ifdef BOOTXX_DEBUG
     51 # define DPRINTF(x) printf x
     52 #else
     53 # define DPRINTF(x)
     54 #endif
     55 
     56 char *devs[] = { "sd", "fh", "fd", NULL, NULL, "rd", "st" };
     57 struct apbus_sysinfo *_sip;
     58 int apbus = 0;
     59 
     60 void
     61 bootxx(a0, a1, a2, a3, a4, a5)
     62 	u_int32_t a0, a1, a2, a3, a4, a5;
     63 {
     64 	int fd, blk, bs;
     65 	int ctlr, unit, part, type;
     66 	int i;
     67 	int bootdev = a1;
     68 	char *addr;
     69 	char devname[32];
     70 
     71 	/*
     72 	 * XXX a3 contains:
     73 	 *     maxmem (nws-3xxx)
     74 	 *     argv   (apbus-based machine)
     75 	 */
     76 	if (a3 & 0x80000000)
     77 		apbus = 1;
     78 	else
     79 		apbus = 0;
     80 
     81 	printf("NetBSD/newsmips Primary Boot\n");
     82 
     83 	DPRINTF(("\n"));
     84 	DPRINTF(("a0 %x\n", a0));
     85 	DPRINTF(("a1 %x\n", a1));
     86 	DPRINTF(("a2 %x (%s)\n", a2, (char *)a2));
     87 	DPRINTF(("a3 %x\n", a3));
     88 	DPRINTF(("a4 %x\n", a4));
     89 	DPRINTF(("a5 %x\n", a5));
     90 
     91 	DPRINTF(("block_size  = %d\n", bbinfo.bbi_block_size));
     92 	DPRINTF(("block_count = %d\n", bbinfo.bbi_block_count));
     93 	DPRINTF(("entry_point = %p\n", entry_point));
     94 
     95 	if (apbus) {
     96 		strcpy(devname, (char *)a1);
     97 		fd = apcall_open(devname, 0);
     98 	} else {
     99 		/* sd(ctlr, lun, part, bus?, host) */
    100 
    101 		ctlr = BOOTDEV_CTLR(bootdev);
    102 		unit = BOOTDEV_UNIT(bootdev);
    103 		part = BOOTDEV_PART(bootdev);
    104 		type = BOOTDEV_TYPE(bootdev);
    105 
    106 		if (devs[type] == NULL) {
    107 			printf("unknown bootdev (0x%x)\n", bootdev);
    108 			return;
    109 		}
    110 		sprintf(devname, "%s(%d,%d,%d)", devs[type], ctlr, unit, part);
    111 
    112 		fd = rom_open(devname, 0);
    113 	}
    114 	if (fd == -1) {
    115 		printf("cannot open %s\n", devname);
    116 		return;
    117 	}
    118 
    119 	addr = (char *)entry_point;
    120 	bs = bbinfo.bbi_block_size;
    121 	DPRINTF(("reading block:"));
    122 	for (i = 0; i < bbinfo.bbi_block_count; i++) {
    123 		blk = bbinfo.bbi_block_table[i];
    124 
    125 		DPRINTF((" %d", blk));
    126 
    127 		if (apbus) {
    128 			apcall_lseek(fd, blk * 512, 0);
    129 			apcall_read(fd, addr, bs);
    130 		} else {
    131 			rom_lseek(fd, blk * 512, 0);
    132 			rom_read(fd, addr, bs);
    133 		}
    134 		addr += bs;
    135 	}
    136 	DPRINTF((" done\n"));
    137 	if (apbus)
    138 		apcall_close(fd);
    139 	else
    140 		rom_close(fd);
    141 
    142 	(*entry_point)(a0, a1, a2, a3, _sip);
    143 }
    144 
    145 void
    146 putchar(x)
    147 	int x;
    148 {
    149 	char c = x;
    150 
    151 	if (apbus)
    152 		apcall_write(1, &c, 1);
    153 	else
    154 		rom_write(1, &c, 1);
    155 }
    156