/[gxemul]/trunk/src/machines/machine_bebox.c
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Contents of /trunk/src/machines/machine_bebox.c

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Revision 26 - (show annotations)
Mon Oct 8 16:20:10 2007 UTC (16 years, 6 months ago) by dpavlin
File MIME type: text/plain
File size: 4338 byte(s)
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.1264 2006/06/25 11:08:04 debug Exp $
20060624	Replacing the error-prone machine type initialization stuff
		with something more reasonable.
		Finally removing the old "cpu_run" kludge; moving around stuff
		in machine.c and emul.c to better suit the dyntrans system.
		Various minor dyntrans cleanups (renaming translate_address to
		translate_v2p, and experimenting with template physpages).
20060625	Removing the speed hack which separated the vph entries into
		two halves (code vs data); things seem a lot more stable now.
		Minor performance hack: R2000/R3000 cache isolation now only
		clears address translations when going into isolation, not
		when going out of it.
		Fixing the MIPS interrupt problems by letting mtc0 immediately
		cause interrupts.

==============  RELEASE 0.4.0.1  ==============


1 /*
2 * Copyright (C) 2005-2006 Anders Gavare. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 *
28 * $Id: machine_bebox.c,v 1.3 2006/06/24 10:19:19 debug Exp $
29 *
30 * Experimental machine for running NetBSD/bebox (see
31 * http://www.netbsd.org/Ports/bebox/ for more info.)
32 */
33
34 #include <stdio.h>
35 #include <string.h>
36
37 #include "bus_isa.h"
38 #include "bus_pci.h"
39 #include "cpu.h"
40 #include "device.h"
41 #include "devices.h"
42 #include "machine.h"
43 #include "machine_interrupts.h"
44 #include "memory.h"
45 #include "misc.h"
46
47
48 MACHINE_SETUP(bebox)
49 {
50 struct pci_data *pci_data;
51
52 machine->machine_name = "BeBox";
53
54 machine->md_int.bebox_data = device_add(machine, "bebox");
55 machine->isa_pic_data.native_irq = 5;
56 machine->md_interrupt = isa32_interrupt;
57
58 pci_data = dev_eagle_init(machine, machine->memory,
59 32 /* isa irq base */, 0 /* pci irq: TODO */);
60
61 bus_isa_init(machine, BUS_ISA_IDE0 | BUS_ISA_VGA,
62 0x80000000, 0xc0000000, 32, 48);
63
64 if (!machine->prom_emulation)
65 return;
66
67 /* According to the docs, and also used by NetBSD: */
68 store_32bit_word(cpu, 0x3010, machine->physical_ram_in_mb * 1048576);
69
70 /* Used by Linux: */
71 store_32bit_word(cpu, 0x32f8, machine->physical_ram_in_mb * 1048576);
72
73 /* TODO: List of stuff, see http://www.beatjapan.org/
74 mirror/www.be.com/aboutbe/benewsletter/
75 Issue27.html#Cookbook for the details. */
76 store_32bit_word(cpu, 0x301c, 0);
77
78 /* NetBSD/bebox: r3 = startkernel, r4 = endkernel,
79 r5 = args, r6 = ptr to bootinfo? */
80 cpu->cd.ppc.gpr[3] = 0x3100;
81 cpu->cd.ppc.gpr[4] = 0x400000;
82 cpu->cd.ppc.gpr[5] = 0x2000;
83 store_string(cpu, cpu->cd.ppc.gpr[5], "-a");
84 cpu->cd.ppc.gpr[6] = machine->physical_ram_in_mb * 1048576 - 0x100;
85
86 /* See NetBSD's bebox/include/bootinfo.h for details */
87 store_32bit_word(cpu, cpu->cd.ppc.gpr[6] + 0, 12); /* next */
88 store_32bit_word(cpu, cpu->cd.ppc.gpr[6] + 4, 0); /* mem */
89 store_32bit_word(cpu, cpu->cd.ppc.gpr[6] + 8,
90 machine->physical_ram_in_mb * 1048576);
91
92 store_32bit_word(cpu, cpu->cd.ppc.gpr[6] + 12, 20); /* next */
93 store_32bit_word(cpu, cpu->cd.ppc.gpr[6] + 16, 1); /* console */
94 store_buf(cpu, cpu->cd.ppc.gpr[6] + 20,
95 machine->use_x11? "vga" : "com", 4);
96 store_32bit_word(cpu, cpu->cd.ppc.gpr[6] + 24, 0x3f8);/* addr */
97 store_32bit_word(cpu, cpu->cd.ppc.gpr[6] + 28, 9600);/* speed */
98
99 store_32bit_word(cpu, cpu->cd.ppc.gpr[6] + 32, 0); /* next */
100 store_32bit_word(cpu, cpu->cd.ppc.gpr[6] + 36, 2); /* clock */
101 store_32bit_word(cpu, cpu->cd.ppc.gpr[6] + 40, 100);
102 }
103
104
105 MACHINE_DEFAULT_CPU(bebox)
106 {
107 /* For NetBSD/bebox. Dual 133 MHz 603e CPUs, for example. */
108 machine->cpu_name = strdup("PPC603e");
109 }
110
111
112 MACHINE_DEFAULT_RAM(bebox)
113 {
114 machine->physical_ram_in_mb = 64;
115 }
116
117
118 MACHINE_REGISTER(bebox)
119 {
120 MR_DEFAULT(bebox, "BeBox", ARCH_PPC, MACHINE_BEBOX);
121
122 machine_entry_add_alias(me, "bebox");
123
124 me->set_default_ram = machine_default_ram_bebox;
125 }
126

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