Add dummy m68k board.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3567 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 66 insertions, 0 deletions

diff --git a/hw/dummy_m68k.c b/hw/dummy_m68k.c
new file mode 100644
index 0000000..6305915
--- /dev/null
+++ b/hw/dummy_m68k.c
@@ -0,0 +1,66 @@
+/*
+ * Dummy board with just RAM and CPU for use as an ISS.
+ *
+ * Copyright (c) 2007 CodeSourcery.
+ *
+ * This code is licenced under the GPL
+ */
+
+#include "vl.h"
+
+#define KERNEL_LOAD_ADDR 0x10000
+
+/* Board init.  */
+
+static void dummy_m68k_init(int ram_size, int vga_ram_size, int boot_device,
+                     DisplayState *ds, const char **fd_filename, int snapshot,
+                     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;
+
+    env = cpu_init();
+    if (!cpu_model)
+        cpu_model = "cfv4e";
+    if (cpu_m68k_set_model(env, cpu_model)) {
+        cpu_abort(env, "Unable to find m68k CPU definition\n");
+    }
+
+    /* 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,
+};