root / hw / an5206.c @ bc578fe0
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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 licenced under the GPL
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*/
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#include "hw.h" |
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#include "pc.h" |
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#include "mcf.h" |
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#include "sysemu.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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#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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/* Stub functions for hardware that doesn't exist. */
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void pic_info(Monitor *mon)
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{ |
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} |
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void irq_info(Monitor *mon)
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{ |
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} |
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/* Board init. */
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static void an5206_init(ram_addr_t ram_size, |
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const char *boot_device, |
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const char *kernel_filename, const char *kernel_cmdline, |
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const char *initrd_filename, const char *cpu_model) |
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{ |
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CPUState *env; |
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int kernel_size;
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uint64_t elf_entry; |
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target_phys_addr_t entry; |
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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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cpu_register_physical_memory(0, ram_size,
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qemu_ram_alloc(ram_size) | IO_MEM_RAM); |
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/* Internal SRAM. */
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cpu_register_physical_memory(AN5206_RAMBAR_ADDR, 512,
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qemu_ram_alloc(512) | IO_MEM_RAM);
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mcf5206_init(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, 0, &elf_entry, NULL, NULL, |
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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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}; |
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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); |