xref: /openbmc/qemu/hw/sh4/shix.c (revision 30b6852c)
1 /*
2  * SHIX 2.0 board description
3  *
4  * Copyright (c) 2005 Samuel Tardieu
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to deal
8  * in the Software without restriction, including without limitation the rights
9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10  * copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22  * THE SOFTWARE.
23  */
24 /*
25    Shix 2.0 board by Alexis Polti, described at
26    https://web.archive.org/web/20070917001736/perso.enst.fr/~polti/realisations/shix20
27 
28    More information in target/sh4/README.sh4
29 */
30 #include "qemu/osdep.h"
31 #include "qapi/error.h"
32 #include "cpu.h"
33 #include "hw/sh4/sh.h"
34 #include "sysemu/qtest.h"
35 #include "hw/boards.h"
36 #include "hw/loader.h"
37 #include "qemu/error-report.h"
38 
39 #define BIOS_FILENAME "shix_bios.bin"
40 #define BIOS_ADDRESS 0xA0000000
41 
42 static void shix_init(MachineState *machine)
43 {
44     int ret;
45     SuperHCPU *cpu;
46     struct SH7750State *s;
47     MemoryRegion *sysmem = get_system_memory();
48     MemoryRegion *rom = g_new(MemoryRegion, 1);
49     MemoryRegion *sdram = g_new(MemoryRegion, 2);
50     const char *bios_name = machine->firmware ?: BIOS_FILENAME;
51 
52     cpu = SUPERH_CPU(cpu_create(machine->cpu_type));
53 
54     /* Allocate memory space */
55     memory_region_init_rom(rom, NULL, "shix.rom", 0x4000, &error_fatal);
56     memory_region_add_subregion(sysmem, 0x00000000, rom);
57     memory_region_init_ram(&sdram[0], NULL, "shix.sdram1", 0x01000000,
58                            &error_fatal);
59     memory_region_add_subregion(sysmem, 0x08000000, &sdram[0]);
60     memory_region_init_ram(&sdram[1], NULL, "shix.sdram2", 0x01000000,
61                            &error_fatal);
62     memory_region_add_subregion(sysmem, 0x0c000000, &sdram[1]);
63 
64     /* Load BIOS in 0 (and access it through P2, 0xA0000000) */
65     ret = load_image_targphys(bios_name, 0, 0x4000);
66     if (ret < 0 && !qtest_enabled()) {
67         error_report("Could not load SHIX bios '%s'", bios_name);
68         exit(1);
69     }
70 
71     /* Register peripherals */
72     s = sh7750_init(cpu, sysmem);
73     /* XXXXX Check success */
74     tc58128_init(s, "shix_linux_nand.bin", NULL);
75 }
76 
77 static void shix_machine_init(MachineClass *mc)
78 {
79     mc->desc = "shix card";
80     mc->init = shix_init;
81     mc->is_default = true;
82     mc->default_cpu_type = TYPE_SH7750R_CPU;
83 }
84 
85 DEFINE_MACHINE("shix", shix_machine_init)
86