1 files changed, 102 insertions, 0 deletions
diff --git a/hw/m68k/an5206.c b/hw/m68k/an5206.c
new file mode 100644
index 00000000..11ae4c97
--- /dev/null
+++ b/hw/m68k/an5206.c
@@ -0,0 +1,102 @@
+/*
+ * Arnewsh 5206 ColdFire system emulation.
+ *
+ * Copyright (c) 2007 CodeSourcery.
+ *
+ * This code is licensed under the GPL
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "cpu.h"
+#include "hw/m68k/mcf.h"
+#include "hw/boards.h"
+#include "hw/loader.h"
+#include "elf.h"
+#include "qemu/error-report.h"
+#include "sysemu/qtest.h"
+
+#define KERNEL_LOAD_ADDR 0x10000
+#define AN5206_MBAR_ADDR 0x10000000
+#define AN5206_RAMBAR_ADDR 0x20000000
+
+static void mcf5206_init(MemoryRegion *sysmem, uint32_t base)
+{
+    DeviceState *dev;
+    SysBusDevice *s;
+
+    dev = qdev_new(TYPE_MCF5206_MBAR);
+    s = SYS_BUS_DEVICE(dev);
+    sysbus_realize_and_unref(s, &error_fatal);
+
+    memory_region_add_subregion(sysmem, base, sysbus_mmio_get_region(s, 0));
+}
+
+static void an5206_init(MachineState *machine)
+{
+    ram_addr_t ram_size = machine->ram_size;
+    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 *sram = g_new(MemoryRegion, 1);
+
+    cpu = M68K_CPU(cpu_create(machine->cpu_type));
+    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_add_subregion(address_space_mem, 0, machine->ram);
+
+    /* Internal SRAM.  */
+    memory_region_init_ram(sram, NULL, "an5206.sram", 512, &error_fatal);
+    memory_region_add_subregion(address_space_mem, AN5206_RAMBAR_ADDR, sram);
+
+    mcf5206_init(address_space_mem, AN5206_MBAR_ADDR);
+
+    /* Load kernel.  */
+    if (!kernel_filename) {
+        if (qtest_enabled()) {
+            return;
+        }
+        error_report("Kernel image must be specified");
+        exit(1);
+    }
+
+    kernel_size = load_elf(kernel_filename, NULL, NULL, NULL, &elf_entry,
+                           NULL, NULL, NULL, 1, EM_68K, 0, 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) {
+        error_report("Could not load kernel '%s'", kernel_filename);
+        exit(1);
+    }
+
+    env->pc = entry;
+}
+
+static void an5206_machine_init(MachineClass *mc)
+{
+    mc->desc = "Arnewsh 5206";
+    mc->init = an5206_init;
+    mc->default_cpu_type = M68K_CPU_TYPE_NAME("m5206");
+    mc->default_ram_id = "an5206.ram";
+}
+
+DEFINE_MACHINE("an5206", an5206_machine_init)