1/*	$NetBSD: bootxx.c,v 1.8 2008/02/21 14:32:31 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
36struct 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
47void bootxx(uint32_t, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t);
48void (*entry_point)(uint32_t, uint32_t, uint32_t, uint32_t, void *) =
49    (void *)DEFAULT_ENTRY_POINT;
50
51#ifdef BOOTXX_DEBUG
52# define DPRINTF printf
53#else
54# define DPRINTF while (0) printf
55#endif
56
57char *devs[] = { "sd", "fh", "fd", NULL, NULL, "rd", "st" };
58struct apbus_sysinfo *_sip;
59int apbus = 0;
60
61void
62bootxx(uint32_t a0, uint32_t a1, uint32_t a2, uint32_t a3, uint32_t a4,
63    uint32_t a5)
64{
65	int fd, blk, bs;
66	int ctlr, unit, part, type;
67	int i;
68	int bootdev = a1;
69	char *addr;
70	char devname[32];
71
72	/*
73	 * XXX a3 contains:
74	 *     maxmem (nws-3xxx)
75	 *     argv   (apbus-based machine)
76	 */
77	if (a3 & 0x80000000)
78		apbus = 1;
79	else
80		apbus = 0;
81
82	printf("NetBSD/newsmips Primary Boot\n");
83
84	DPRINTF("\n");
85	DPRINTF("a0 %x\n", a0);
86	DPRINTF("a1 %x\n", a1);
87	DPRINTF("a2 %x (%s)\n", a2, (char *)a2);
88	DPRINTF("a3 %x\n", a3);
89	DPRINTF("a4 %x\n", a4);
90	DPRINTF("a5 %x\n", a5);
91
92	DPRINTF("block_size  = %d\n", bbinfo.bbi_block_size);
93	DPRINTF("block_count = %d\n", bbinfo.bbi_block_count);
94	DPRINTF("entry_point = %p\n", entry_point);
95
96	if (apbus) {
97		strcpy(devname, (char *)a1);
98		fd = apcall_open(devname, 0);
99	} else {
100		/* sd(ctlr, lun, part, bus?, host) */
101
102		ctlr = BOOTDEV_CTLR(bootdev);
103		unit = BOOTDEV_UNIT(bootdev);
104		part = BOOTDEV_PART(bootdev);
105		type = BOOTDEV_TYPE(bootdev);
106
107		if (devs[type] == NULL) {
108			printf("unknown bootdev (0x%x)\n", bootdev);
109			return;
110		}
111		snprintf(devname, sizeof(devname), "%s(%d,%d,%d)",
112		    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
147void
148putchar(int x)
149{
150	char c = x;
151
152	if (apbus)
153		apcall_write(1, &c, 1);
154	else
155		rom_write(1, &c, 1);
156}
157