/**
* unflatten_device_tree - create tree of device_nodes from flat blob
*
* unflattens the device-tree passed by the firmware, creating the
* tree of struct device_node. It also fills the "name" and "type"
* pointers of the nodes so the normal device-tree walking functions
* can be used.
*/
void __init unflatten_device_tree(void)
{
__unflatten_device_tree(initial_boot_params, &of_allnodes,
early_init_dt_alloc_memory_arch);
/* Get pointer to "/chosen" and "/aliasas" nodes for use everywhere */
of_alias_scan(early_init_dt_alloc_memory_arch);
}
void __init of_pdt_build_devicetree(phandle root_node, struct of_pdt_ops *ops)
{
BUG_ON(!ops);
of_pdt_prom_ops = ops;
of_root = of_pdt_create_node(root_node, NULL);
#if defined(CONFIG_SPARC)
of_root->path_component_name = "";
#endif
of_root->full_name = "/";
of_root->child = of_pdt_build_tree(of_root,
of_pdt_prom_ops->getchild(of_root->phandle));
/* Get pointer to "/chosen" and "/aliases" nodes for use everywhere */
of_alias_scan(kernel_tree_alloc);
}