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Commit | Line | Data |
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1 | /* | |
2 | * Dummy board with just RAM and CPU for use as an ISS. | |
3 | * | |
4 | * Copyright (c) 2007 CodeSourcery. | |
5 | * | |
6 | * This code is licensed under the GPL | |
7 | */ | |
8 | ||
9 | #include "hw.h" | |
10 | #include "boards.h" | |
11 | #include "loader.h" | |
12 | #include "elf.h" | |
13 | ||
14 | #define KERNEL_LOAD_ADDR 0x10000 | |
15 | ||
16 | /* Board init. */ | |
17 | ||
18 | static void dummy_m68k_init(ram_addr_t ram_size, | |
19 | const char *boot_device, | |
20 | const char *kernel_filename, const char *kernel_cmdline, | |
21 | const char *initrd_filename, const char *cpu_model) | |
22 | { | |
23 | CPUState *env; | |
24 | int kernel_size; | |
25 | uint64_t elf_entry; | |
26 | target_phys_addr_t entry; | |
27 | ||
28 | if (!cpu_model) | |
29 | cpu_model = "cfv4e"; | |
30 | env = cpu_init(cpu_model); | |
31 | if (!env) { | |
32 | fprintf(stderr, "Unable to find m68k CPU definition\n"); | |
33 | exit(1); | |
34 | } | |
35 | ||
36 | /* Initialize CPU registers. */ | |
37 | env->vbr = 0; | |
38 | ||
39 | /* RAM at address zero */ | |
40 | cpu_register_physical_memory(0, ram_size, | |
41 | qemu_ram_alloc(NULL, "dummy_m68k.ram", ram_size) | IO_MEM_RAM); | |
42 | ||
43 | /* Load kernel. */ | |
44 | if (kernel_filename) { | |
45 | kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry, | |
46 | NULL, NULL, 1, ELF_MACHINE, 0); | |
47 | entry = elf_entry; | |
48 | if (kernel_size < 0) { | |
49 | kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL); | |
50 | } | |
51 | if (kernel_size < 0) { | |
52 | kernel_size = load_image_targphys(kernel_filename, | |
53 | KERNEL_LOAD_ADDR, | |
54 | ram_size - KERNEL_LOAD_ADDR); | |
55 | entry = KERNEL_LOAD_ADDR; | |
56 | } | |
57 | if (kernel_size < 0) { | |
58 | fprintf(stderr, "qemu: could not load kernel '%s'\n", | |
59 | kernel_filename); | |
60 | exit(1); | |
61 | } | |
62 | } else { | |
63 | entry = 0; | |
64 | } | |
65 | env->pc = entry; | |
66 | } | |
67 | ||
68 | static QEMUMachine dummy_m68k_machine = { | |
69 | .name = "dummy", | |
70 | .desc = "Dummy board", | |
71 | .init = dummy_m68k_init, | |
72 | }; | |
73 | ||
74 | static void dummy_m68k_machine_init(void) | |
75 | { | |
76 | qemu_register_machine(&dummy_m68k_machine); | |
77 | } | |
78 | ||
79 | machine_init(dummy_m68k_machine_init); |