/* * Arnewsh 5206 ColdFire system emulation. * * Copyright (c) 2007 CodeSourcery. * * This code is licensed under the GPL */ #include "hw/hw.h" #include "hw/m68k/mcf.h" #include "hw/boards.h" #include "hw/loader.h" #include "elf.h" #include "exec/address-spaces.h" #include "sysemu/qtest.h" #define KERNEL_LOAD_ADDR 0x10000 #define AN5206_MBAR_ADDR 0x10000000 #define AN5206_RAMBAR_ADDR 0x20000000 /* Board init. */ static void an5206_init(QEMUMachineInitArgs *args) { ram_addr_t ram_size = args->ram_size; const char *cpu_model = args->cpu_model; const char *kernel_filename = args->kernel_filename; M68kCPU *cpu; CPUM68KState *env; int kernel_size; uint64_t elf_entry; hwaddr entry; MemoryRegion *address_space_mem = get_system_memory(); MemoryRegion *ram = g_new(MemoryRegion, 1); MemoryRegion *sram = g_new(MemoryRegion, 1); if (!cpu_model) { cpu_model = "m5206"; } cpu = cpu_m68k_init(cpu_model); if (!cpu) { hw_error("Unable to find m68k CPU definition\n"); } env = &cpu->env; /* Initialize CPU registers. */ env->vbr = 0; /* TODO: allow changing MBAR and RAMBAR. */ env->mbar = AN5206_MBAR_ADDR | 1; env->rambar0 = AN5206_RAMBAR_ADDR | 1; /* DRAM at address zero */ memory_region_init_ram(ram, NULL, "an5206.ram", ram_size); vmstate_register_ram_global(ram); memory_region_add_subregion(address_space_mem, 0, ram); /* Internal SRAM. */ memory_region_init_ram(sram, NULL, "an5206.sram", 512); vmstate_register_ram_global(sram); memory_region_add_subregion(address_space_mem, AN5206_RAMBAR_ADDR, sram); mcf5206_init(address_space_mem, AN5206_MBAR_ADDR, cpu); /* Load kernel. */ if (!kernel_filename) { if (qtest_enabled()) { return; } fprintf(stderr, "Kernel image must be specified\n"); exit(1); } kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry, NULL, NULL, 1, ELF_MACHINE, 0); entry = elf_entry; if (kernel_size < 0) { kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL); } if (kernel_size < 0) { kernel_size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR, ram_size - KERNEL_LOAD_ADDR); entry = KERNEL_LOAD_ADDR; } if (kernel_size < 0) { fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename); exit(1); } env->pc = entry; } static QEMUMachine an5206_machine = { .name = "an5206", .desc = "Arnewsh 5206", .init = an5206_init, }; static void an5206_machine_init(void) { qemu_register_machine(&an5206_machine); } machine_init(an5206_machine_init);