return true;
}
+static void *__init copy_device_tree(void *fdt)
+{
+ int size;
+ void *dt;
+
+ size = fdt_totalsize(fdt);
+ dt = early_init_dt_alloc_memory_arch(size,
+ roundup_pow_of_two(FDT_V17_SIZE));
+
+ if (dt)
+ memcpy(dt, fdt, size);
+
+ return dt;
+}
+
/**
* unflatten_device_tree - create tree of device_nodes from flat blob
*
*/
void __init unflatten_and_copy_device_tree(void)
{
- int size;
- void *dt;
-
- if (!initial_boot_params) {
- pr_warn("No valid device tree found, continuing without\n");
- return;
- }
+ if (initial_boot_params)
+ initial_boot_params = copy_device_tree(initial_boot_params);
- size = fdt_totalsize(initial_boot_params);
- dt = early_init_dt_alloc_memory_arch(size,
- roundup_pow_of_two(FDT_V17_SIZE));
-
- if (dt) {
- memcpy(dt, initial_boot_params, size);
- initial_boot_params = dt;
- }
unflatten_device_tree();
}