90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
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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 "vl.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(void)
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{
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}
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void irq_info(void)
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{
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}
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void DMA_run (void)
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{
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}
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/* Board init. */
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static void an5206_init(int ram_size, int vga_ram_size, int boot_device,
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DisplayState *ds, const char **fd_filename, int snapshot,
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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_ulong entry;
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env = cpu_init();
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if (!cpu_model)
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cpu_model = "m5206";
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cpu_m68k_set_model(env, cpu_model);
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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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entry = elf_entry;
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if (kernel_size < 0) {
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kernel_size = load_uboot(kernel_filename, &entry, NULL);
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}
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if (kernel_size < 0) {
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kernel_size = load_image(kernel_filename,
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phys_ram_base + 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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QEMUMachine an5206_machine = {
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"an5206",
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"Arnewsh 5206",
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an5206_init,
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};
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