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bootxx.c revision 1.2 
      1 /*	$NetBSD: bootxx.c,v 1.2 2000/10/12 05:34:29 onoe 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 #define MAXBLOCKNUM 64
     35 
     36 void (*entry_point)() = (void *)0;
     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[] = { "sd", "fh", "fd", NULL, NULL, "rd", "st" };
     48 struct apbus_sysinfo *_sip;
     49 int apbus = 0;
     50 
     51 void
     52 bootxx(a0, a1, a2, a3, a4, a5)
     53 	u_int a0, a1, a2, a3, a4, a5;
     54 {
     55 	int fd, blk, bs;
     56 	int ctlr, unit, part, type;
     57 	int i;
     58 	int bootdev = a1;
     59 	char *addr;
     60 	char devname[32];
     61 
     62 	/*
     63 	 * XXX a3 contains:
     64 	 *     maxmem (nws-3xxx)
     65 	 *     argv   (apbus-based machine)
     66 	 */
     67 	if (a3 & 0x80000000)
     68 		apbus = 1;
     69 	else
     70 		apbus = 0;
     71 
     72 	printf("NetBSD/newsmips Primary Boot\n");
     73 
     74 	DPRINTF("\n");
     75 	DPRINTF("a0 %x\n", a0);
     76 	DPRINTF("a1 %x\n", a1);
     77 	DPRINTF("a2 %x (%s)\n", a2, (char *)a2);
     78 	DPRINTF("a3 %x\n", a3);
     79 	DPRINTF("a4 %x\n", a4);
     80 	DPRINTF("a5 %x\n", a5);
     81 
     82 	DPRINTF("block_size  = %d\n", block_size);
     83 	DPRINTF("block_count = %d\n", block_count);
     84 	DPRINTF("entry_point = %x\n", (int)entry_point);
     85 
     86 	if (apbus) {
     87 		strcpy(devname, (char *)a1);
     88 		fd = apcall_open(devname, 0);
     89 	} else {
     90 		/* sd(ctlr, lun, part, bus?, host) */
     91 
     92 		ctlr = BOOTDEV_CTLR(bootdev);
     93 		unit = BOOTDEV_UNIT(bootdev);
     94 		part = BOOTDEV_PART(bootdev);
     95 		type = BOOTDEV_TYPE(bootdev);
     96 
     97 		if (devs[type] == NULL) {
     98 			printf("unknown bootdev (0x%x)\n", bootdev);
     99 			return;
    100 		}
    101 		sprintf(devname, "%s(%d,%d,%d)", devs[type], ctlr, unit, part);
    102 
    103 		fd = rom_open(devname, 0);
    104 	}
    105 	if (fd == -1) {
    106 		printf("cannot open %s\n", devname);
    107 		return;
    108 	}
    109 
    110 	addr = (char *)entry_point;
    111 	bs = block_size;
    112 	DPRINTF("reading block:");
    113 	for (i = 0; i < block_count; i++) {
    114 		blk = block_table[i];
    115 
    116 		DPRINTF(" %d", blk);
    117 
    118 		if (apbus) {
    119 			apcall_lseek(fd, blk * 512, 0);
    120 			apcall_read(fd, addr, bs);
    121 		} else {
    122 			rom_lseek(fd, blk * 512, 0);
    123 			rom_read(fd, addr, bs);
    124 		}
    125 		addr += bs;
    126 	}
    127 	DPRINTF(" done\n");
    128 	if (apbus)
    129 		apcall_close(fd);
    130 	else
    131 		rom_close(fd);
    132 
    133 	(*entry_point)(a0, a1, a2, a3, _sip);
    134 }
    135 
    136 void
    137 putchar(x)
    138 	int x;
    139 {
    140 	char c = x;
    141 
    142 	if (apbus)
    143 		apcall_write(1, &c, 1);
    144 	else
    145 		rom_write(1, &c, 1);
    146 }
    147