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Commit | Line | Data |
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5fafdf24 | 1 | /* |
0633879f PB |
2 | * Arnewsh 5206 ColdFire system emulation. |
3 | * | |
4 | * Copyright (c) 2007 CodeSourcery. | |
5 | * | |
6 | * This code is licenced under the GPL | |
7 | */ | |
8 | ||
9 | #include "vl.h" | |
10 | ||
11 | #define KERNEL_LOAD_ADDR 0x10000 | |
12 | #define AN5206_MBAR_ADDR 0x10000000 | |
13 | #define AN5206_RAMBAR_ADDR 0x20000000 | |
14 | ||
15 | /* Stub functions for hardware that doesn't exist. */ | |
16 | void pic_info(void) | |
17 | { | |
18 | } | |
19 | ||
20 | void irq_info(void) | |
21 | { | |
22 | } | |
23 | ||
24 | void DMA_run (void) | |
25 | { | |
26 | } | |
27 | ||
28 | /* Board init. */ | |
29 | ||
30 | static void an5206_init(int ram_size, int vga_ram_size, int boot_device, | |
31 | DisplayState *ds, const char **fd_filename, int snapshot, | |
32 | const char *kernel_filename, const char *kernel_cmdline, | |
33 | const char *initrd_filename, const char *cpu_model) | |
34 | { | |
35 | CPUState *env; | |
36 | int kernel_size; | |
37 | uint64_t elf_entry; | |
38 | target_ulong entry; | |
39 | ||
40 | env = cpu_init(); | |
41 | if (!cpu_model) | |
42 | cpu_model = "m5206"; | |
20dcee94 PB |
43 | if (cpu_m68k_set_model(env, cpu_model)) { |
44 | cpu_abort(env, "Unable to find m68k CPU definition\n"); | |
45 | } | |
0633879f PB |
46 | |
47 | /* Initialize CPU registers. */ | |
48 | env->vbr = 0; | |
49 | /* TODO: allow changing MBAR and RAMBAR. */ | |
50 | env->mbar = AN5206_MBAR_ADDR | 1; | |
51 | env->rambar0 = AN5206_RAMBAR_ADDR | 1; | |
52 | ||
53 | /* DRAM at address zero */ | |
54 | cpu_register_physical_memory(0, ram_size, | |
55 | qemu_ram_alloc(ram_size) | IO_MEM_RAM); | |
56 | ||
57 | /* Internal SRAM. */ | |
58 | cpu_register_physical_memory(AN5206_RAMBAR_ADDR, 512, | |
59 | qemu_ram_alloc(512) | IO_MEM_RAM); | |
60 | ||
61 | mcf5206_init(AN5206_MBAR_ADDR, env); | |
62 | ||
63 | /* Load kernel. */ | |
64 | if (!kernel_filename) { | |
65 | fprintf(stderr, "Kernel image must be specified\n"); | |
66 | exit(1); | |
67 | } | |
68 | ||
69 | kernel_size = load_elf(kernel_filename, 0, &elf_entry, NULL, NULL); | |
70 | entry = elf_entry; | |
71 | if (kernel_size < 0) { | |
72 | kernel_size = load_uboot(kernel_filename, &entry, NULL); | |
73 | } | |
74 | if (kernel_size < 0) { | |
75 | kernel_size = load_image(kernel_filename, | |
76 | phys_ram_base + KERNEL_LOAD_ADDR); | |
77 | entry = KERNEL_LOAD_ADDR; | |
78 | } | |
79 | if (kernel_size < 0) { | |
80 | fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename); | |
81 | exit(1); | |
82 | } | |
83 | ||
84 | env->pc = entry; | |
85 | } | |
86 | ||
87 | QEMUMachine an5206_machine = { | |
88 | "an5206", | |
89 | "Arnewsh 5206", | |
90 | an5206_init, | |
91 | }; |