for (j = 0; j < total; j++) {
                        fdt_get_mem_rsv(of_flat_tree, j, &addr, &size);
-                       if (addr == (uint64_t)of_flat_tree) {
+                       if (addr == (uint64_t)(u32)of_flat_tree) {
                                fdt_del_mem_rsv(of_flat_tree, j);
                                break;
                        }
                }
 
                /* Delete the old LMB reservation */
-               lmb_free(lmb, (uint64_t)of_flat_tree, fdt_totalsize(of_flat_tree));
+               lmb_free(lmb, (uint64_t)(u32)of_flat_tree, fdt_totalsize(of_flat_tree));
 
                /* Calculate the actual size of the fdt */
                actualsize = fdt_off_dt_strings(of_flat_tree) +