Add qemu 2.4.0

[kvmfornfv.git] / qemu / hw / m68k / an5206.c

diff --git a/qemu/hw/m68k/an5206.c b/qemu/hw/m68k/an5206.c
new file mode 100644 (file)
index 0000000..f63ab2b
--- /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);