root / hw / an5206.c @ d8c6d07f
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/*
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* Arnewsh 5206 ColdFire system emulation.
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*
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* Copyright (c) 2007 CodeSourcery.
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*
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* This code is licensed under the GPL
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*/
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#include "hw.h" |
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#include "mcf.h" |
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#include "boards.h" |
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#include "loader.h" |
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#include "elf.h" |
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#include "exec/address-spaces.h" |
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#define KERNEL_LOAD_ADDR 0x10000 |
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#define AN5206_MBAR_ADDR 0x10000000 |
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#define AN5206_RAMBAR_ADDR 0x20000000 |
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/* Board init. */
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static void an5206_init(QEMUMachineInitArgs *args) |
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{ |
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ram_addr_t ram_size = args->ram_size; |
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const char *cpu_model = args->cpu_model; |
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const char *kernel_filename = args->kernel_filename; |
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CPUM68KState *env; |
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int kernel_size;
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uint64_t elf_entry; |
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hwaddr entry; |
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MemoryRegion *address_space_mem = get_system_memory(); |
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MemoryRegion *ram = g_new(MemoryRegion, 1);
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MemoryRegion *sram = g_new(MemoryRegion, 1);
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if (!cpu_model)
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cpu_model = "m5206";
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env = cpu_init(cpu_model); |
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if (!env) {
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hw_error("Unable to find m68k CPU definition\n");
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} |
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/* Initialize CPU registers. */
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env->vbr = 0;
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/* TODO: allow changing MBAR and RAMBAR. */
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env->mbar = AN5206_MBAR_ADDR | 1;
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env->rambar0 = AN5206_RAMBAR_ADDR | 1;
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/* DRAM at address zero */
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memory_region_init_ram(ram, "an5206.ram", ram_size);
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vmstate_register_ram_global(ram); |
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memory_region_add_subregion(address_space_mem, 0, ram);
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/* Internal SRAM. */
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memory_region_init_ram(sram, "an5206.sram", 512); |
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vmstate_register_ram_global(sram); |
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memory_region_add_subregion(address_space_mem, AN5206_RAMBAR_ADDR, sram); |
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mcf5206_init(address_space_mem, AN5206_MBAR_ADDR, env); |
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/* Load kernel. */
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if (!kernel_filename) {
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fprintf(stderr, "Kernel image must be specified\n");
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exit(1);
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} |
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kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry, |
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NULL, NULL, 1, ELF_MACHINE, 0); |
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entry = elf_entry; |
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if (kernel_size < 0) { |
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kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL); |
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} |
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if (kernel_size < 0) { |
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kernel_size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR, |
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ram_size - KERNEL_LOAD_ADDR); |
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entry = KERNEL_LOAD_ADDR; |
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} |
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if (kernel_size < 0) { |
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fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename);
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exit(1);
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} |
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env->pc = entry; |
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} |
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static QEMUMachine an5206_machine = {
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.name = "an5206",
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.desc = "Arnewsh 5206",
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.init = an5206_init, |
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DEFAULT_MACHINE_OPTIONS, |
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}; |
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static void an5206_machine_init(void) |
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{ |
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qemu_register_machine(&an5206_machine); |
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} |
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machine_init(an5206_machine_init); |