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bootxx.c revision 1.6 
      1 /*	$NetBSD: bootxx.c,v 1.6 2003/11/21 19:44:53 tsutsui 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 bootxx __P((u_int32_t, u_int32_t, uint32_t, u_int32_t, u_int32_t,
     48     u_int32_t));
     49 void (*entry_point) __P((u_int32_t, u_int32_t, u_int32_t, u_int32_t, void *)) =
     50     (void *)DEFAULT_ENTRY_POINT;
     51 
     52 #ifdef BOOTXX_DEBUG
     53 # define DPRINTF printf
     54 #else
     55 # define DPRINTF while (0) printf
     56 #endif
     57 
     58 char *devs[] = { "sd", "fh", "fd", NULL, NULL, "rd", "st" };
     59 struct apbus_sysinfo *_sip;
     60 int apbus = 0;
     61 
     62 void
     63 bootxx(a0, a1, a2, a3, a4, a5)
     64 	u_int32_t a0, a1, a2, a3, a4, a5;
     65 {
     66 	int fd, blk, bs;
     67 	int ctlr, unit, part, type;
     68 	int i;
     69 	int bootdev = a1;
     70 	char *addr;
     71 	char devname[32];
     72 
     73 	/*
     74 	 * XXX a3 contains:
     75 	 *     maxmem (nws-3xxx)
     76 	 *     argv   (apbus-based machine)
     77 	 */
     78 	if (a3 & 0x80000000)
     79 		apbus = 1;
     80 	else
     81 		apbus = 0;
     82 
     83 	printf("NetBSD/newsmips Primary Boot\n");
     84 
     85 	DPRINTF("\n");
     86 	DPRINTF("a0 %x\n", a0);
     87 	DPRINTF("a1 %x\n", a1);
     88 	DPRINTF("a2 %x (%s)\n", a2, (char *)a2);
     89 	DPRINTF("a3 %x\n", a3);
     90 	DPRINTF("a4 %x\n", a4);
     91 	DPRINTF("a5 %x\n", a5);
     92 
     93 	DPRINTF("block_size  = %d\n", bbinfo.bbi_block_size);
     94 	DPRINTF("block_count = %d\n", bbinfo.bbi_block_count);
     95 	DPRINTF("entry_point = %p\n", entry_point);
     96 
     97 	if (apbus) {
     98 		strcpy(devname, (char *)a1);
     99 		fd = apcall_open(devname, 0);
    100 	} else {
    101 		/* sd(ctlr, lun, part, bus?, host) */
    102 
    103 		ctlr = BOOTDEV_CTLR(bootdev);
    104 		unit = BOOTDEV_UNIT(bootdev);
    105 		part = BOOTDEV_PART(bootdev);
    106 		type = BOOTDEV_TYPE(bootdev);
    107 
    108 		if (devs[type] == NULL) {
    109 			printf("unknown bootdev (0x%x)\n", bootdev);
    110 			return;
    111 		}
    112 		sprintf(devname, "%s(%d,%d,%d)", devs[type], ctlr, unit, part);
    113 
    114 		fd = rom_open(devname, 0);
    115 	}
    116 	if (fd == -1) {
    117 		printf("cannot open %s\n", devname);
    118 		return;
    119 	}
    120 
    121 	addr = (char *)entry_point;
    122 	bs = bbinfo.bbi_block_size;
    123 	DPRINTF("reading block:");
    124 	for (i = 0; i < bbinfo.bbi_block_count; i++) {
    125 		blk = bbinfo.bbi_block_table[i];
    126 
    127 		DPRINTF(" %d", blk);
    128 
    129 		if (apbus) {
    130 			apcall_lseek(fd, blk * 512, 0);
    131 			apcall_read(fd, addr, bs);
    132 		} else {
    133 			rom_lseek(fd, blk * 512, 0);
    134 			rom_read(fd, addr, bs);
    135 		}
    136 		addr += bs;
    137 	}
    138 	DPRINTF(" done\n");
    139 	if (apbus)
    140 		apcall_close(fd);
    141 	else
    142 		rom_close(fd);
    143 
    144 	(*entry_point)(a0, a1, a2, a3, _sip);
    145 }
    146 
    147 void
    148 putchar(x)
    149 	int x;
    150 {
    151 	char c = x;
    152 
    153 	if (apbus)
    154 		apcall_write(1, &c, 1);
    155 	else
    156 		rom_write(1, &c, 1);
    157 }
    158