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Commit | Line | Data |
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1 | /* | |
2 | * Arnewsh 5206 ColdFire system emulation. | |
3 | * | |
4 | * Copyright (c) 2007 CodeSourcery. | |
5 | * | |
6 | * This code is licensed under the GPL | |
7 | */ | |
8 | ||
9 | #include "hw.h" | |
10 | #include "mcf.h" | |
11 | #include "boards.h" | |
12 | #include "loader.h" | |
13 | #include "elf.h" | |
14 | #include "exec-memory.h" | |
15 | ||
16 | #define KERNEL_LOAD_ADDR 0x10000 | |
17 | #define AN5206_MBAR_ADDR 0x10000000 | |
18 | #define AN5206_RAMBAR_ADDR 0x20000000 | |
19 | ||
20 | /* Board init. */ | |
21 | ||
22 | static void an5206_init(ram_addr_t ram_size, | |
23 | const char *boot_device, | |
24 | const char *kernel_filename, const char *kernel_cmdline, | |
25 | const char *initrd_filename, const char *cpu_model) | |
26 | { | |
27 | CPUM68KState *env; | |
28 | int kernel_size; | |
29 | uint64_t elf_entry; | |
30 | target_phys_addr_t entry; | |
31 | MemoryRegion *address_space_mem = get_system_memory(); | |
32 | MemoryRegion *ram = g_new(MemoryRegion, 1); | |
33 | MemoryRegion *sram = g_new(MemoryRegion, 1); | |
34 | ||
35 | if (!cpu_model) | |
36 | cpu_model = "m5206"; | |
37 | env = cpu_init(cpu_model); | |
38 | if (!env) { | |
39 | hw_error("Unable to find m68k CPU definition\n"); | |
40 | } | |
41 | ||
42 | /* Initialize CPU registers. */ | |
43 | env->vbr = 0; | |
44 | /* TODO: allow changing MBAR and RAMBAR. */ | |
45 | env->mbar = AN5206_MBAR_ADDR | 1; | |
46 | env->rambar0 = AN5206_RAMBAR_ADDR | 1; | |
47 | ||
48 | /* DRAM at address zero */ | |
49 | memory_region_init_ram(ram, "an5206.ram", ram_size); | |
50 | vmstate_register_ram_global(ram); | |
51 | memory_region_add_subregion(address_space_mem, 0, ram); | |
52 | ||
53 | /* Internal SRAM. */ | |
54 | memory_region_init_ram(sram, "an5206.sram", 512); | |
55 | vmstate_register_ram_global(sram); | |
56 | memory_region_add_subregion(address_space_mem, AN5206_RAMBAR_ADDR, sram); | |
57 | ||
58 | mcf5206_init(address_space_mem, AN5206_MBAR_ADDR, env); | |
59 | ||
60 | /* Load kernel. */ | |
61 | if (!kernel_filename) { | |
62 | fprintf(stderr, "Kernel image must be specified\n"); | |
63 | exit(1); | |
64 | } | |
65 | ||
66 | kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry, | |
67 | NULL, NULL, 1, ELF_MACHINE, 0); | |
68 | entry = elf_entry; | |
69 | if (kernel_size < 0) { | |
70 | kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL); | |
71 | } | |
72 | if (kernel_size < 0) { | |
73 | kernel_size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR, | |
74 | ram_size - KERNEL_LOAD_ADDR); | |
75 | entry = KERNEL_LOAD_ADDR; | |
76 | } | |
77 | if (kernel_size < 0) { | |
78 | fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename); | |
79 | exit(1); | |
80 | } | |
81 | ||
82 | env->pc = entry; | |
83 | } | |
84 | ||
85 | static QEMUMachine an5206_machine = { | |
86 | .name = "an5206", | |
87 | .desc = "Arnewsh 5206", | |
88 | .init = an5206_init, | |
89 | }; | |
90 | ||
91 | static void an5206_machine_init(void) | |
92 | { | |
93 | qemu_register_machine(&an5206_machine); | |
94 | } | |
95 | ||
96 | machine_init(an5206_machine_init); |