1 files changed, 104 insertions, 0 deletions
diff --git a/hw/arm/digic.c b/hw/arm/digic.c
new file mode 100644
index 00000000..6df55479
--- /dev/null
+++ b/hw/arm/digic.c
@@ -0,0 +1,104 @@
+/*
+ * QEMU model of the Canon DIGIC SoC.
+ *
+ * Copyright (C) 2013 Antony Pavlov <antonynpavlov@gmail.com>
+ *
+ * This model is based on reverse engineering efforts
+ * made by CHDK (http://chdk.wikia.com) and
+ * Magic Lantern (http://www.magiclantern.fm) projects
+ * contributors.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu/module.h"
+#include "hw/arm/digic.h"
+#include "hw/qdev-properties.h"
+#include "sysemu/sysemu.h"
+
+#define DIGIC4_TIMER_BASE(n)    (0xc0210000 + (n) * 0x100)
+
+#define DIGIC_UART_BASE          0xc0800000
+
+static void digic_init(Object *obj)
+{
+    DigicState *s = DIGIC(obj);
+    int i;
+
+    object_initialize_child(obj, "cpu", &s->cpu, ARM_CPU_TYPE_NAME("arm946"));
+
+    for (i = 0; i < DIGIC4_NB_TIMERS; i++) {
+        g_autofree char *name = g_strdup_printf("timer[%d]", i);
+        object_initialize_child(obj, name, &s->timer[i], TYPE_DIGIC_TIMER);
+    }
+
+    object_initialize_child(obj, "uart", &s->uart, TYPE_DIGIC_UART);
+}
+
+static void digic_realize(DeviceState *dev, Error **errp)
+{
+    DigicState *s = DIGIC(dev);
+    SysBusDevice *sbd;
+    int i;
+
+    if (!object_property_set_bool(OBJECT(&s->cpu), "reset-hivecs", true,
+                                  errp)) {
+        return;
+    }
+
+    if (!qdev_realize(DEVICE(&s->cpu), NULL, errp)) {
+        return;
+    }
+
+    for (i = 0; i < DIGIC4_NB_TIMERS; i++) {
+        if (!sysbus_realize(SYS_BUS_DEVICE(&s->timer[i]), errp)) {
+            return;
+        }
+
+        sbd = SYS_BUS_DEVICE(&s->timer[i]);
+        sysbus_mmio_map(sbd, 0, DIGIC4_TIMER_BASE(i));
+    }
+
+    qdev_prop_set_chr(DEVICE(&s->uart), "chardev", serial_hd(0));
+    if (!sysbus_realize(SYS_BUS_DEVICE(&s->uart), errp)) {
+        return;
+    }
+
+    sbd = SYS_BUS_DEVICE(&s->uart);
+    sysbus_mmio_map(sbd, 0, DIGIC_UART_BASE);
+}
+
+static void digic_class_init(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+
+    dc->realize = digic_realize;
+    /* Reason: Uses serial_hds in the realize function --> not usable twice */
+    dc->user_creatable = false;
+}
+
+static const TypeInfo digic_type_info = {
+    .name = TYPE_DIGIC,
+    .parent = TYPE_DEVICE,
+    .instance_size = sizeof(DigicState),
+    .instance_init = digic_init,
+    .class_init = digic_class_init,
+};
+
+static void digic_register_types(void)
+{
+    type_register_static(&digic_type_info);
+}
+
+type_init(digic_register_types)