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

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Revision 40 - (show annotations)
Mon Oct 8 16:22:11 2007 UTC (16 years, 6 months ago) by dpavlin
File MIME type: text/plain
File size: 4522 byte(s) 
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.1539 2007/05/01 04:03:51 debug Exp $
20070415	Landisk PCLOCK should be 33.33 MHz, not 50 MHz. (This makes
		the clock run at correct speed.)
		FINALLY found and fixed the bug which caused OpenBSD/landisk
		to randomly bug out: an &-sign was missing in the special case
		handling of FPSCR in the 'LDS.L @Rm+,FPSCR' instruction.
		Adding similar special case handling for 'LDC.L @Rm+,SR'
		(calling sh_update_sr() instead of just loading).
		Implementing the 'FCNVSD FPUL,DRn' and 'FCNVDS DRm,FPUL'
		SuperH instructions.
		The 'LDC Rm,SR' instruction now immediately breaks out of the
		dyntrans loop if an interrupt is to be triggered.
20070416	In memory_rw.c, if mapping a page as writable, make sure to
		invalidate code translations even if the data access was a
		read.
		Minor SuperH updates.
20070418	Removing the dummy M68K emulation mode.
		Minor SH update (turning unnecessary sts_mach_rn, sts_macl_rn,
		and sts_pr_rn instruction handlers into mov_rm_rn).
20070419	Beginning to add a skeleton for an M88K mode: Adding a hack to
		allow OpenBSD/m88k a.out binaries to be loaded, and disassembly
		of a few simple 88K instructions.
		Commenting out the 'LDC Rm,SR' fix from a few days ago, because
		it made Linux/dreamcast bug out.
		Adding a hack to dev_sh4.c (an extra translation cache
		invalidation), which allows OpenBSD/landisk to boot ok after
		an install. Upgrading the Landisk machine mode to stable,
		updating documentation, etc.
20070420	Experimenting with adding a PCI controller (pcic) to dev_sh4.
		Adding a dummy Realtek 8139C+ skeleton device (dev_rtl8139c).
		Implementing the first M88K instructions (br, or[.u] imm), and
		adding disassembly of some more instructions.
20070421	Continuing a little on dev_rtl8139c.
20070422	Implementing the 9346 EEPROM "read" command for dev_rtl8139c.
		Finally found and fixed an old bug in the log n symbol search
		(it sometimes missed symbols). Debug trace (-i, -t etc) should
		now show more symbols. :-)
20070423	Continuing a little on M88K disassembly.
20070428	Fixing a memset arg order bug in src/net/net.c (thanks to
		Nigel Horne for noticing the bug).
		Applying parts of a patch from Carl van Schaik to clear out
		bottom bits of MIPS addresses more correctly, when using large
		page sizes, and doing some other minor cleanup/refactoring.
		Fixing a couple of warnings given by gcc with the -W option (a
		few more warnings than just plain -Wall).
		Reducing SuperH dyntrans physical address space from 64-bit to
		32-bit (since SH5/SH64 isn't imlemented yet anyway).
		Adding address-to-symbol annotation to a few more instructions
		in the SuperH instruction trace output.
		Beginning regression testing for the next release.
		Reverting the value of SCIF_DELAYED_TX_VALUE from 1 to 2,
		because OpenBSD/landisk may otherwise hang randomly.
20070429	The ugly hack/workaround to get OpenBSD/landisk booting without
		crashing does NOT work anymore (with the April 21 snapshot
		of OpenBSD/landisk). Strangely enough, removing the hack
		completely causes OpenBSD/landisk to work (!).
		More regression testing (re-testing everything SuperH-related,
		and some other things).
		Cobalt interrupts were actually broken; fixing by commenting
		out the DEC21143s in the Cobalt machine.
20070430	More regression testing.
20070501	Updating the OpenBSD/landisk install instructions to use
		4.1 instead of the current snapshot.
		GAAAH! OpenBSD/landisk 4.1 _needs_ the ugly hack/workaround;
		reintroducing it again. (The 4.1 kernel is actually from
		2007-03-11.)
		Simplifying the NetBSD/evbarm install instructions a bit.
		More regression testing.

==============  RELEASE 0.4.5.1  ==============
1 /*
2 * Copyright (C) 2006-2007 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_landisk.c,v 1.15 2007/04/22 03:57:38 debug Exp $
29 *
30 * I-O DATA LANDISK USL-5P.
31 *
32 * This machine consists of:
33 *
34 * o) An SH4 processor, which includes serial console etc,
35 * o) 64 MB RAM (at 0x0c000000),
36 * o) an IDE controller at address 0x14000000 (irq 10),
37 * o) a RS5C313 real time clock, connected to the SH4 SCI port,
38 * o) a PCI controller (PCIC),
39 * o) and a minimal SH-IPL+G PROM emulation layer (required to make
40 * OpenBSD/landisk boot).
41 *
42 * TODO:
43 * Realtek NIC (irq 5), PCIIDE (irq 6), USB controllers, etc.
44 */
45
46 #include <stdio.h>
47 #include <stdlib.h>
48 #include <string.h>
49
50 #include "cpu.h"
51 #include "device.h"
52 #include "devices.h"
53 #include "machine.h"
54 #include "memory.h"
55 #include "misc.h"
56
57 #include "sh4_exception.h"
58 #include "sh4_scireg.h"
59
60
61 /* This is not really implemented yet: (experimental) */
62 /* #define INCLUDE_LANDISK_NIC */
63
64
65 MACHINE_SETUP(landisk)
66 {
67 #ifdef INCLUDE_LANDISK_NIC
68 struct pci_data *pcibus =
69 machine->cpus[machine->bootstrap_cpu]->cd.sh.pcic_pcibus;
70 #endif
71 char tmpstr[300];
72
73 machine->machine_name = "Landisk USL-5P";
74 machine->stable = 1;
75
76 /* 266.67 MHz SH4 CPU clock: */
77 if (machine->emulated_hz == 0)
78 machine->emulated_hz = 266666666;
79
80 /* 33.33 MHz SH4 PCLOCK: */
81 machine->cpus[machine->bootstrap_cpu]->cd.sh.pclock = 33333333;
82
83 /* Note: 64 MB RAM at 0x0c000000, not at 0x00000000. */
84 dev_ram_init(machine, 0x0c000000, 64 * 1048576, DEV_RAM_RAM, 0x0);
85
86 /* wdc0 at obio0 port 0x14000000-0x1400000f irq 10 */
87 snprintf(tmpstr, sizeof(tmpstr), "wdc irq=%s.cpu[%i].irq[0x%x]"
88 " addr_mult=2 addr=0x14000000",
89 machine->path, machine->bootstrap_cpu, SH4_INTEVT_IRQ10);
90 device_add(machine, tmpstr);
91
92 /* rsclock0 at shb0: RS5C313 real time clock */
93 snprintf(tmpstr, sizeof(tmpstr), "rs5c313 addr=0x%"PRIx64,
94 (uint64_t) SCI_DEVICE_BASE);
95 device_add(machine, tmpstr);
96
97 #ifdef INCLUDE_LANDISK_NIC
98 /* Realtek PCI NIC: */
99 bus_pci_add(machine, pcibus, machine->memory, 0, 0, 0, "rtl8139c");
100 #endif
101
102 if (!machine->prom_emulation)
103 return;
104
105 /*
106 * Ugly hardcoded register contents at bootup:
107 *
108 * r4 (arg 0) = boot howto flags
109 * r5 (arg 1) = bootinfo pointer for NetBSD (?) and
110 * symbol end pointer for OpenBSD (?)
111 *
112 * TODO: Make nicer.
113 */
114 cpu->cd.sh.r[4] = 0;
115 cpu->cd.sh.r[5] = 0x8c000000 + 10 * 1048576; /* Note/TODO:
116 Assuming hardcoded 10 MB kernel size! */
117
118 sh_ipl_g_emul_init(machine);
119 }
120
121
122 MACHINE_DEFAULT_CPU(landisk)
123 {
124 /* Hitachi SH4 7751R, 266.67 MHz */
125 machine->cpu_name = strdup("SH7751R");
126 }
127
128
129 MACHINE_DEFAULT_RAM(landisk)
130 {
131 /* Note: This is the size of the boot ROM area, since the
132 Landisk's RAM isn't located at physical address zero. */
133 machine->physical_ram_in_mb = 2;
134 }
135
136
137 MACHINE_REGISTER(landisk)
138 {
139 MR_DEFAULT(landisk, "Landisk", ARCH_SH, MACHINE_LANDISK);
140 me->set_default_ram = machine_default_ram_landisk;
141
142 machine_entry_add_alias(me, "landisk");
143 machine_entry_add_alias(me, "usl-5p");
144 }
145
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