diff options
Diffstat (limited to 'hw/dummy_m68k.c')
-rw-r--r-- | hw/dummy_m68k.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/hw/dummy_m68k.c b/hw/dummy_m68k.c new file mode 100644 index 000000000..705d30425 --- /dev/null +++ b/hw/dummy_m68k.c @@ -0,0 +1,69 @@ +/* + * Dummy board with just RAM and CPU for use as an ISS. + * + * Copyright (c) 2007 CodeSourcery. + * + * This code is licenced under the GPL + */ + +#include "hw.h" +#include "sysemu.h" +#include "boards.h" + +#define KERNEL_LOAD_ADDR 0x10000 + +/* Board init. */ + +static void dummy_m68k_init(int ram_size, int vga_ram_size, + const char *boot_device, DisplayState *ds, + const char *kernel_filename, const char *kernel_cmdline, + const char *initrd_filename, const char *cpu_model) +{ + CPUState *env; + int kernel_size; + uint64_t elf_entry; + target_ulong entry; + + if (!cpu_model) + cpu_model = "cfv4e"; + env = cpu_init(cpu_model); + if (!env) { + fprintf(stderr, "Unable to find m68k CPU definition\n"); + exit(1); + } + + /* Initialize CPU registers. */ + env->vbr = 0; + + /* RAM at address zero */ + cpu_register_physical_memory(0, ram_size, + qemu_ram_alloc(ram_size) | IO_MEM_RAM); + + /* Load kernel. */ + if (kernel_filename) { + kernel_size = load_elf(kernel_filename, 0, &elf_entry, NULL, NULL); + entry = elf_entry; + if (kernel_size < 0) { + kernel_size = load_uboot(kernel_filename, &entry, NULL); + } + if (kernel_size < 0) { + kernel_size = load_image(kernel_filename, + phys_ram_base + KERNEL_LOAD_ADDR); + entry = KERNEL_LOAD_ADDR; + } + if (kernel_size < 0) { + fprintf(stderr, "qemu: could not load kernel '%s'\n", + kernel_filename); + exit(1); + } + } else { + entry = 0; + } + env->pc = entry; +} + +QEMUMachine dummy_m68k_machine = { + "dummy", + "Dummy board", + dummy_m68k_init, +}; |