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authorpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>2007-05-23 19:58:11 +0000
committerpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>2007-05-23 19:58:11 +0000
commit0633879f1ac38b18d84c46dda506300cc8329723 (patch)
tree8df64e0861c32132c7a08af16451629f1ec69112 /hw/an5206.c
parent9daea9067aae3e324f14c6b139621c10683fc550 (diff)
m68k/ColdFire system emulation.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2851 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw/an5206.c')
-rw-r--r--hw/an5206.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/hw/an5206.c b/hw/an5206.c
new file mode 100644
index 0000000000..1306d1964d
--- /dev/null
+++ b/hw/an5206.c
@@ -0,0 +1,89 @@
+/*
+ * Arnewsh 5206 ColdFire system emulation.
+ *
+ * Copyright (c) 2007 CodeSourcery.
+ *
+ * This code is licenced under the GPL
+ */
+
+#include "vl.h"
+
+#define KERNEL_LOAD_ADDR 0x10000
+#define AN5206_MBAR_ADDR 0x10000000
+#define AN5206_RAMBAR_ADDR 0x20000000
+
+/* Stub functions for hardware that doesn't exist. */
+void pic_info(void)
+{
+}
+
+void irq_info(void)
+{
+}
+
+void DMA_run (void)
+{
+}
+
+/* Board init. */
+
+static void an5206_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 = "m5206";
+ cpu_m68k_set_model(env, cpu_model);
+
+ /* 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 */
+ cpu_register_physical_memory(0, ram_size,
+ qemu_ram_alloc(ram_size) | IO_MEM_RAM);
+
+ /* Internal SRAM. */
+ cpu_register_physical_memory(AN5206_RAMBAR_ADDR, 512,
+ qemu_ram_alloc(512) | IO_MEM_RAM);
+
+ mcf5206_init(AN5206_MBAR_ADDR, env);
+
+ /* Load kernel. */
+ if (!kernel_filename) {
+ fprintf(stderr, "Kernel image must be specified\n");
+ exit(1);
+ }
+
+ 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);
+ }
+
+ env->pc = entry;
+}
+
+QEMUMachine an5206_machine = {
+ "an5206",
+ "Arnewsh 5206",
+ an5206_init,
+};