/[gxemul]/trunk/src/machines/machine_cats.c
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Contents of /trunk/src/machines/machine_cats.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: 5359 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_cats.c,v 1.5 2006/06/24 10:19:19 debug Exp $
29 */
30
31 #include <stdio.h>
32 #include <string.h>
33
34 #include "bus_isa.h"
35 #include "bus_pci.h"
36 #include "cpu.h"
37 #include "device.h"
38 #include "devices.h"
39 #include "machine.h"
40 #include "machine_interrupts.h"
41 #include "memory.h"
42 #include "misc.h"
43
44 #include "cyclone_boot.h"
45
46
47 MACHINE_SETUP(cats)
48 {
49 struct ebsaboot ebsaboot;
50 char bs[300];
51 int boot_id = machine->bootdev_id >= 0? machine->bootdev_id : 0;
52
53 machine->machine_name = "CATS evaluation board";
54 machine->stable = 1;
55
56 if (machine->emulated_hz == 0)
57 machine->emulated_hz = 50000000;
58
59 if (machine->physical_ram_in_mb > 256)
60 fprintf(stderr, "WARNING! Real CATS machines cannot"
61 " have more than 256 MB RAM. Continuing anyway.\n");
62
63 machine->md_int.footbridge_data =
64 device_add(machine, "footbridge addr=0x42000000");
65 machine->md_interrupt = isa32_interrupt;
66 machine->isa_pic_data.native_irq = 10;
67
68 /* DC21285_ROM_BASE (256 KB at 0x41000000) */
69 dev_ram_init(machine, 0x41000000, 256 * 1024, DEV_RAM_RAM, 0);
70
71 /* NetBSD, OpenBSD, and Linux (?) clean their caches here: */
72 dev_ram_init(machine, 0x50000000, 0x10000, DEV_RAM_RAM, 0);
73
74 /* Interrupt ack space? */
75 dev_ram_init(machine, 0x80000000, 0x1000, DEV_RAM_RAM, 0);
76
77 /* Linux uses 0xc0000000 as phys.: */
78 dev_ram_init(machine, 0xc0000000, 0x20000000, DEV_RAM_MIRROR, 0x0);
79
80 /* OpenBSD reboot needs 0xf??????? to be mapped to phys.: */
81 dev_ram_init(machine, 0xf0000000, 0x1000000, DEV_RAM_MIRROR, 0x0);
82
83 bus_isa_init(machine, BUS_ISA_PCKBC_FORCE_USE |
84 BUS_ISA_PCKBC_NONPCSTYLE, 0x7c000000, 0x80000000, 32, 48);
85
86 bus_pci_add(machine, machine->md_int.footbridge_data->pcibus,
87 machine->memory, 0xc0, 8, 0, "s3_virge");
88
89 if (!machine->prom_emulation)
90 return;
91
92 /* See cyclone_boot.h for details. */
93
94 /* DC21285_ROM_BASE "reboot" code: (works with NetBSD) */
95 store_32bit_word(cpu, 0x41000008ULL, 0xef8c64ebUL);
96
97 cpu->cd.arm.r[0] = /* machine->physical_ram_in_mb */
98 7 * 1048576 - 0x1000;
99
100 memset(&ebsaboot, 0, sizeof(struct ebsaboot));
101 store_32bit_word_in_host(cpu, (unsigned char *)
102 &(ebsaboot.bt_magic), BT_MAGIC_NUMBER_CATS);
103 store_32bit_word_in_host(cpu, (unsigned char *)
104 &(ebsaboot.bt_vargp), 0);
105 store_32bit_word_in_host(cpu, (unsigned char *)
106 &(ebsaboot.bt_pargp), 0);
107 store_32bit_word_in_host(cpu, (unsigned char *)
108 &(ebsaboot.bt_args), cpu->cd.arm.r[0]
109 + sizeof(struct ebsaboot));
110 store_32bit_word_in_host(cpu, (unsigned char *)
111 &(ebsaboot.bt_l1), 7 * 1048576 - 32768);
112 store_32bit_word_in_host(cpu, (unsigned char *)
113 &(ebsaboot.bt_memstart), 0);
114 store_32bit_word_in_host(cpu, (unsigned char *)
115 &(ebsaboot.bt_memend),
116 machine->physical_ram_in_mb * 1048576);
117 store_32bit_word_in_host(cpu, (unsigned char *)
118 &(ebsaboot.bt_memavail), 7 * 1048576);
119 store_32bit_word_in_host(cpu, (unsigned char *)
120 &(ebsaboot.bt_fclk), 50 * 1000000);
121 store_32bit_word_in_host(cpu, (unsigned char *)
122 &(ebsaboot.bt_pciclk), 66 * 1000000);
123 /* TODO: bt_vers */
124 /* TODO: bt_features */
125
126 store_buf(cpu, cpu->cd.arm.r[0],
127 (char *)&ebsaboot, sizeof(struct ebsaboot));
128
129 snprintf(bs, sizeof(bs), "(hd%i)%s root=/dev/wd%i%s%s",
130 boot_id, machine->boot_kernel_filename, boot_id,
131 (machine->boot_string_argument[0])? " " : "",
132 machine->boot_string_argument);
133
134 store_string(cpu, cpu->cd.arm.r[0]+sizeof(struct ebsaboot), bs);
135
136 arm_setup_initial_translation_table(cpu, 7 * 1048576 - 32768);
137 }
138
139
140 MACHINE_DEFAULT_CPU(cats)
141 {
142 machine->cpu_name = strdup("SA110");
143 }
144
145
146 MACHINE_DEFAULT_RAM(cats)
147 {
148 machine->physical_ram_in_mb = 64;
149 }
150
151
152 MACHINE_REGISTER(cats)
153 {
154 MR_DEFAULT(cats, "CATS evaluation board", ARCH_ARM,
155 MACHINE_CATS);
156
157 machine_entry_add_alias(me, "cats");
158
159 me->set_default_ram = machine_default_ram_cats;
160 }
161

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