1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
new file mode 100644
index 0000000000..1dd139f7a3
--- /dev/null
+++ b/drivers/base/bus.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * Under GPLv2
+ */
+
+#include <common.h>
+#include <driver.h>
+#include <errno.h>
+
+LIST_HEAD(bus_list);
+EXPORT_SYMBOL(bus_list);
+
+struct bus_type *get_bus_by_name(const char *name)
+{
+	struct bus_type *bus;
+
+	for_each_bus(bus) {
+		if(!strcmp(bus->name, name))
+			return bus;
+	}
+
+	return NULL;
+}
+
+int bus_register(struct bus_type *bus)
+{
+	if (get_bus_by_name(bus->name))
+		return -EEXIST;
+
+	INIT_LIST_HEAD(&bus->device_list);
+	INIT_LIST_HEAD(&bus->driver_list);
+
+	list_add_tail(&bus->list, &bus_list);
+
+	return 0;
+}