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Commit | Line | Data |
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ca02f319 PB |
1 | /* |
2 | * Dummy board with just RAM and CPU for use as an ISS. | |
3 | * | |
4 | * Copyright (c) 2007 CodeSourcery. | |
5 | * | |
8e31bf38 | 6 | * This code is licensed under the GPL |
ca02f319 PB |
7 | */ |
8 | ||
83c9f4ca PB |
9 | #include "hw/hw.h" |
10 | #include "hw/boards.h" | |
11 | #include "hw/loader.h" | |
ca20cf32 | 12 | #include "elf.h" |
022c62cb | 13 | #include "exec/address-spaces.h" |
ca02f319 PB |
14 | |
15 | #define KERNEL_LOAD_ADDR 0x10000 | |
16 | ||
17 | /* Board init. */ | |
18 | ||
3ef96221 | 19 | static void dummy_m68k_init(MachineState *machine) |
ca02f319 | 20 | { |
3ef96221 MA |
21 | ram_addr_t ram_size = machine->ram_size; |
22 | const char *cpu_model = machine->cpu_model; | |
23 | const char *kernel_filename = machine->kernel_filename; | |
eeff620f | 24 | M68kCPU *cpu; |
7927df3a | 25 | CPUM68KState *env; |
cbdea0ca AK |
26 | MemoryRegion *address_space_mem = get_system_memory(); |
27 | MemoryRegion *ram = g_new(MemoryRegion, 1); | |
ca02f319 PB |
28 | int kernel_size; |
29 | uint64_t elf_entry; | |
a8170e5e | 30 | hwaddr entry; |
ca02f319 | 31 | |
ca02f319 PB |
32 | if (!cpu_model) |
33 | cpu_model = "cfv4e"; | |
eeff620f EH |
34 | cpu = cpu_m68k_init(cpu_model); |
35 | if (!cpu) { | |
cd08ce8f PB |
36 | fprintf(stderr, "Unable to find m68k CPU definition\n"); |
37 | exit(1); | |
ca02f319 | 38 | } |
eeff620f | 39 | env = &cpu->env; |
ca02f319 PB |
40 | |
41 | /* Initialize CPU registers. */ | |
42 | env->vbr = 0; | |
43 | ||
44 | /* RAM at address zero */ | |
1d5bfde1 DM |
45 | memory_region_allocate_system_memory(ram, NULL, "dummy_m68k.ram", |
46 | ram_size); | |
cbdea0ca | 47 | memory_region_add_subregion(address_space_mem, 0, ram); |
ca02f319 PB |
48 | |
49 | /* Load kernel. */ | |
50 | if (kernel_filename) { | |
409dbce5 | 51 | kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry, |
45e6b8b6 | 52 | NULL, NULL, 1, EM_68K, 0); |
ca02f319 PB |
53 | entry = elf_entry; |
54 | if (kernel_size < 0) { | |
25bda50a MF |
55 | kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL, |
56 | NULL, NULL); | |
ca02f319 PB |
57 | } |
58 | if (kernel_size < 0) { | |
dcac9679 PB |
59 | kernel_size = load_image_targphys(kernel_filename, |
60 | KERNEL_LOAD_ADDR, | |
61 | ram_size - KERNEL_LOAD_ADDR); | |
ca02f319 PB |
62 | entry = KERNEL_LOAD_ADDR; |
63 | } | |
64 | if (kernel_size < 0) { | |
65 | fprintf(stderr, "qemu: could not load kernel '%s'\n", | |
66 | kernel_filename); | |
67 | exit(1); | |
68 | } | |
69 | } else { | |
70 | entry = 0; | |
71 | } | |
72 | env->pc = entry; | |
73 | } | |
74 | ||
e264d29d | 75 | static void dummy_m68k_machine_init(MachineClass *mc) |
f80f9ec9 | 76 | { |
e264d29d EH |
77 | mc->desc = "Dummy board"; |
78 | mc->init = dummy_m68k_init; | |
f80f9ec9 AL |
79 | } |
80 | ||
e264d29d | 81 | DEFINE_MACHINE("dummy", dummy_m68k_machine_init) |