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-rw-r--r--qemu/hw/m68k/an5206.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/qemu/hw/m68k/an5206.c b/qemu/hw/m68k/an5206.c
new file mode 100644
index 000000000..f63ab2b94
--- /dev/null
+++ b/qemu/hw/m68k/an5206.c
@@ -0,0 +1,103 @@
+/*
+ * 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(MachineState *machine)
+{
+ ram_addr_t ram_size = machine->ram_size;
+ const char *cpu_model = machine->cpu_model;
+ const char *kernel_filename = machine->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_allocate_system_memory(ram, NULL, "an5206.ram", ram_size);
+ memory_region_add_subregion(address_space_mem, 0, ram);
+
+ /* Internal SRAM. */
+ memory_region_init_ram(sram, NULL, "an5206.sram", 512, &error_abort);
+ 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,
+ 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);