root / hw / an5206.c @ 69c38b8f
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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 | 376253ec | aliguori | #include "pc.h" |
11 | 87ecb68b | pbrook | #include "mcf.h" |
12 | 87ecb68b | pbrook | #include "boards.h" |
13 | ca20cf32 | Blue Swirl | #include "loader.h" |
14 | ca20cf32 | Blue Swirl | #include "elf.h" |
15 | 0633879f | pbrook | |
16 | 0633879f | pbrook | #define KERNEL_LOAD_ADDR 0x10000 |
17 | 0633879f | pbrook | #define AN5206_MBAR_ADDR 0x10000000 |
18 | 0633879f | pbrook | #define AN5206_RAMBAR_ADDR 0x20000000 |
19 | 0633879f | pbrook | |
20 | 0633879f | pbrook | /* Stub functions for hardware that doesn't exist. */
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21 | 376253ec | aliguori | void pic_info(Monitor *mon)
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22 | 0633879f | pbrook | { |
23 | 0633879f | pbrook | } |
24 | 0633879f | pbrook | |
25 | 376253ec | aliguori | void irq_info(Monitor *mon)
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26 | 0633879f | pbrook | { |
27 | 0633879f | pbrook | } |
28 | 0633879f | pbrook | |
29 | 0633879f | pbrook | /* Board init. */
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30 | 0633879f | pbrook | |
31 | c227f099 | Anthony Liguori | static void an5206_init(ram_addr_t ram_size, |
32 | 3023f332 | aliguori | const char *boot_device, |
33 | 0633879f | pbrook | const char *kernel_filename, const char *kernel_cmdline, |
34 | 0633879f | pbrook | const char *initrd_filename, const char *cpu_model) |
35 | 0633879f | pbrook | { |
36 | 0633879f | pbrook | CPUState *env; |
37 | 0633879f | pbrook | int kernel_size;
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38 | 0633879f | pbrook | uint64_t elf_entry; |
39 | c227f099 | Anthony Liguori | target_phys_addr_t entry; |
40 | 0633879f | pbrook | |
41 | 0633879f | pbrook | if (!cpu_model)
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42 | 0633879f | pbrook | cpu_model = "m5206";
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43 | aaed909a | bellard | env = cpu_init(cpu_model); |
44 | aaed909a | bellard | if (!env) {
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45 | 2ac71179 | Paul Brook | hw_error("Unable to find m68k CPU definition\n");
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46 | 20dcee94 | pbrook | } |
47 | 0633879f | pbrook | |
48 | 0633879f | pbrook | /* Initialize CPU registers. */
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49 | 0633879f | pbrook | env->vbr = 0;
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50 | 0633879f | pbrook | /* TODO: allow changing MBAR and RAMBAR. */
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51 | 0633879f | pbrook | env->mbar = AN5206_MBAR_ADDR | 1;
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52 | 0633879f | pbrook | env->rambar0 = AN5206_RAMBAR_ADDR | 1;
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53 | 0633879f | pbrook | |
54 | 0633879f | pbrook | /* DRAM at address zero */
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55 | 0633879f | pbrook | cpu_register_physical_memory(0, ram_size,
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56 | 1724f049 | Alex Williamson | qemu_ram_alloc(NULL, "an5206.ram", ram_size) | IO_MEM_RAM); |
57 | 0633879f | pbrook | |
58 | 0633879f | pbrook | /* Internal SRAM. */
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59 | 0633879f | pbrook | cpu_register_physical_memory(AN5206_RAMBAR_ADDR, 512,
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60 | 1724f049 | Alex Williamson | qemu_ram_alloc(NULL, "an5206.sram", 512) | IO_MEM_RAM); |
61 | 0633879f | pbrook | |
62 | 0633879f | pbrook | mcf5206_init(AN5206_MBAR_ADDR, env); |
63 | 0633879f | pbrook | |
64 | 0633879f | pbrook | /* Load kernel. */
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65 | 0633879f | pbrook | if (!kernel_filename) {
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66 | 0633879f | pbrook | fprintf(stderr, "Kernel image must be specified\n");
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67 | 0633879f | pbrook | exit(1);
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68 | 0633879f | pbrook | } |
69 | 0633879f | pbrook | |
70 | 409dbce5 | Aurelien Jarno | kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry, |
71 | 409dbce5 | Aurelien Jarno | NULL, NULL, 1, ELF_MACHINE, 0); |
72 | 0633879f | pbrook | entry = elf_entry; |
73 | 0633879f | pbrook | if (kernel_size < 0) { |
74 | 5a9154e0 | aliguori | kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL); |
75 | 0633879f | pbrook | } |
76 | 0633879f | pbrook | if (kernel_size < 0) { |
77 | dcac9679 | pbrook | kernel_size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR, |
78 | dcac9679 | pbrook | ram_size - KERNEL_LOAD_ADDR); |
79 | 0633879f | pbrook | entry = KERNEL_LOAD_ADDR; |
80 | 0633879f | pbrook | } |
81 | 0633879f | pbrook | if (kernel_size < 0) { |
82 | 0633879f | pbrook | fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename);
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83 | 0633879f | pbrook | exit(1);
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84 | 0633879f | pbrook | } |
85 | 0633879f | pbrook | |
86 | 0633879f | pbrook | env->pc = entry; |
87 | 0633879f | pbrook | } |
88 | 0633879f | pbrook | |
89 | f80f9ec9 | Anthony Liguori | static QEMUMachine an5206_machine = {
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90 | 4b32e168 | aliguori | .name = "an5206",
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91 | 4b32e168 | aliguori | .desc = "Arnewsh 5206",
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92 | 4b32e168 | aliguori | .init = an5206_init, |
93 | 0633879f | pbrook | }; |
94 | f80f9ec9 | Anthony Liguori | |
95 | f80f9ec9 | Anthony Liguori | static void an5206_machine_init(void) |
96 | f80f9ec9 | Anthony Liguori | { |
97 | f80f9ec9 | Anthony Liguori | qemu_register_machine(&an5206_machine); |
98 | f80f9ec9 | Anthony Liguori | } |
99 | f80f9ec9 | Anthony Liguori | |
100 | f80f9ec9 | Anthony Liguori | machine_init(an5206_machine_init); |