root / hw / an5206.c @ 3c4cf535
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1 | 5fafdf24 | ths | /*
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2 | 0633879f | pbrook | * Arnewsh 5206 ColdFire system emulation.
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3 | 0633879f | pbrook | *
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4 | 0633879f | pbrook | * Copyright (c) 2007 CodeSourcery.
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5 | 0633879f | pbrook | *
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6 | 0633879f | pbrook | * This code is licenced under the GPL
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7 | 0633879f | pbrook | */
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8 | 0633879f | pbrook | |
9 | 87ecb68b | pbrook | #include "hw.h" |
10 | 87ecb68b | pbrook | #include "mcf.h" |
11 | 87ecb68b | pbrook | #include "sysemu.h" |
12 | 87ecb68b | pbrook | #include "boards.h" |
13 | 0633879f | pbrook | |
14 | 0633879f | pbrook | #define KERNEL_LOAD_ADDR 0x10000 |
15 | 0633879f | pbrook | #define AN5206_MBAR_ADDR 0x10000000 |
16 | 0633879f | pbrook | #define AN5206_RAMBAR_ADDR 0x20000000 |
17 | 0633879f | pbrook | |
18 | 0633879f | pbrook | /* Stub functions for hardware that doesn't exist. */
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19 | 0633879f | pbrook | void pic_info(void) |
20 | 0633879f | pbrook | { |
21 | 0633879f | pbrook | } |
22 | 0633879f | pbrook | |
23 | 0633879f | pbrook | void irq_info(void) |
24 | 0633879f | pbrook | { |
25 | 0633879f | pbrook | } |
26 | 0633879f | pbrook | |
27 | 0633879f | pbrook | /* Board init. */
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28 | 0633879f | pbrook | |
29 | 00f82b8a | aurel32 | static void an5206_init(ram_addr_t ram_size, int vga_ram_size, |
30 | 3023f332 | aliguori | const char *boot_device, |
31 | 0633879f | pbrook | const char *kernel_filename, const char *kernel_cmdline, |
32 | 0633879f | pbrook | const char *initrd_filename, const char *cpu_model) |
33 | 0633879f | pbrook | { |
34 | 0633879f | pbrook | CPUState *env; |
35 | 0633879f | pbrook | int kernel_size;
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36 | 0633879f | pbrook | uint64_t elf_entry; |
37 | 0633879f | pbrook | target_ulong entry; |
38 | 0633879f | pbrook | |
39 | 0633879f | pbrook | if (!cpu_model)
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40 | 0633879f | pbrook | cpu_model = "m5206";
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41 | aaed909a | bellard | env = cpu_init(cpu_model); |
42 | aaed909a | bellard | if (!env) {
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43 | 20dcee94 | pbrook | cpu_abort(env, "Unable to find m68k CPU definition\n");
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44 | 20dcee94 | pbrook | } |
45 | 0633879f | pbrook | |
46 | 0633879f | pbrook | /* Initialize CPU registers. */
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47 | 0633879f | pbrook | env->vbr = 0;
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48 | 0633879f | pbrook | /* TODO: allow changing MBAR and RAMBAR. */
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49 | 0633879f | pbrook | env->mbar = AN5206_MBAR_ADDR | 1;
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50 | 0633879f | pbrook | env->rambar0 = AN5206_RAMBAR_ADDR | 1;
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51 | 0633879f | pbrook | |
52 | 0633879f | pbrook | /* DRAM at address zero */
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53 | 0633879f | pbrook | cpu_register_physical_memory(0, ram_size,
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54 | 0633879f | pbrook | qemu_ram_alloc(ram_size) | IO_MEM_RAM); |
55 | 0633879f | pbrook | |
56 | 0633879f | pbrook | /* Internal SRAM. */
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57 | 0633879f | pbrook | cpu_register_physical_memory(AN5206_RAMBAR_ADDR, 512,
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58 | 0633879f | pbrook | qemu_ram_alloc(512) | IO_MEM_RAM);
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59 | 0633879f | pbrook | |
60 | 0633879f | pbrook | mcf5206_init(AN5206_MBAR_ADDR, env); |
61 | 0633879f | pbrook | |
62 | 0633879f | pbrook | /* Load kernel. */
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63 | 0633879f | pbrook | if (!kernel_filename) {
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64 | 0633879f | pbrook | fprintf(stderr, "Kernel image must be specified\n");
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65 | 0633879f | pbrook | exit(1);
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66 | 0633879f | pbrook | } |
67 | 0633879f | pbrook | |
68 | 0633879f | pbrook | kernel_size = load_elf(kernel_filename, 0, &elf_entry, NULL, NULL); |
69 | 0633879f | pbrook | entry = elf_entry; |
70 | 0633879f | pbrook | if (kernel_size < 0) { |
71 | 5a9154e0 | aliguori | kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL); |
72 | 0633879f | pbrook | } |
73 | 0633879f | pbrook | if (kernel_size < 0) { |
74 | 0633879f | pbrook | kernel_size = load_image(kernel_filename, |
75 | 0633879f | pbrook | phys_ram_base + KERNEL_LOAD_ADDR); |
76 | 0633879f | pbrook | entry = KERNEL_LOAD_ADDR; |
77 | 0633879f | pbrook | } |
78 | 0633879f | pbrook | if (kernel_size < 0) { |
79 | 0633879f | pbrook | fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename);
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80 | 0633879f | pbrook | exit(1);
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81 | 0633879f | pbrook | } |
82 | 0633879f | pbrook | |
83 | 0633879f | pbrook | env->pc = entry; |
84 | 0633879f | pbrook | } |
85 | 0633879f | pbrook | |
86 | 0633879f | pbrook | QEMUMachine an5206_machine = { |
87 | 4b32e168 | aliguori | .name = "an5206",
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88 | 4b32e168 | aliguori | .desc = "Arnewsh 5206",
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89 | 4b32e168 | aliguori | .init = an5206_init, |
90 | 4b32e168 | aliguori | .ram_require = 512,
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91 | 0633879f | pbrook | }; |