capstone: Update to upstream "next" branch
[qemu.git] / hw / m68k / an5206.c
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 "qemu/osdep.h"
10 #include "qapi/error.h"
11 #include "cpu.h"
12 #include "hw/m68k/mcf.h"
13 #include "hw/boards.h"
14 #include "hw/loader.h"
15 #include "elf.h"
16 #include "exec/address-spaces.h"
17 #include "qemu/error-report.h"
18 #include "sysemu/qtest.h"
19
20 #define KERNEL_LOAD_ADDR 0x10000
21 #define AN5206_MBAR_ADDR 0x10000000
22 #define AN5206_RAMBAR_ADDR 0x20000000
23
24 static void mcf5206_init(MemoryRegion *sysmem, uint32_t base)
25 {
26 DeviceState *dev;
27 SysBusDevice *s;
28
29 dev = qdev_new(TYPE_MCF5206_MBAR);
30 s = SYS_BUS_DEVICE(dev);
31 sysbus_realize_and_unref(s, &error_fatal);
32
33 memory_region_add_subregion(sysmem, base, sysbus_mmio_get_region(s, 0));
34 }
35
36 static void an5206_init(MachineState *machine)
37 {
38 ram_addr_t ram_size = machine->ram_size;
39 const char *kernel_filename = machine->kernel_filename;
40 M68kCPU *cpu;
41 CPUM68KState *env;
42 int kernel_size;
43 uint64_t elf_entry;
44 hwaddr entry;
45 MemoryRegion *address_space_mem = get_system_memory();
46 MemoryRegion *sram = g_new(MemoryRegion, 1);
47
48 cpu = M68K_CPU(cpu_create(machine->cpu_type));
49 env = &cpu->env;
50
51 /* Initialize CPU registers. */
52 env->vbr = 0;
53 /* TODO: allow changing MBAR and RAMBAR. */
54 env->mbar = AN5206_MBAR_ADDR | 1;
55 env->rambar0 = AN5206_RAMBAR_ADDR | 1;
56
57 /* DRAM at address zero */
58 memory_region_add_subregion(address_space_mem, 0, machine->ram);
59
60 /* Internal SRAM. */
61 memory_region_init_ram(sram, NULL, "an5206.sram", 512, &error_fatal);
62 memory_region_add_subregion(address_space_mem, AN5206_RAMBAR_ADDR, sram);
63
64 mcf5206_init(address_space_mem, AN5206_MBAR_ADDR);
65
66 /* Load kernel. */
67 if (!kernel_filename) {
68 if (qtest_enabled()) {
69 return;
70 }
71 error_report("Kernel image must be specified");
72 exit(1);
73 }
74
75 kernel_size = load_elf(kernel_filename, NULL, NULL, NULL, &elf_entry,
76 NULL, NULL, NULL, 1, EM_68K, 0, 0);
77 entry = elf_entry;
78 if (kernel_size < 0) {
79 kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL,
80 NULL, NULL);
81 }
82 if (kernel_size < 0) {
83 kernel_size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR,
84 ram_size - KERNEL_LOAD_ADDR);
85 entry = KERNEL_LOAD_ADDR;
86 }
87 if (kernel_size < 0) {
88 error_report("Could not load kernel '%s'", kernel_filename);
89 exit(1);
90 }
91
92 env->pc = entry;
93 }
94
95 static void an5206_machine_init(MachineClass *mc)
96 {
97 mc->desc = "Arnewsh 5206";
98 mc->init = an5206_init;
99 mc->default_cpu_type = M68K_CPU_TYPE_NAME("m5206");
100 mc->default_ram_id = "an5206.ram";
101 }
102
103 DEFINE_MACHINE("an5206", an5206_machine_init)