1 files changed, 41 insertions, 0 deletions
diff --git a/lib/device_tree/include/lib/device_tree/libfdt_helpers.h b/lib/device_tree/include/lib/device_tree/libfdt_helpers.h
new file mode 100644
index 00000000..22acce77
--- /dev/null
+++ b/lib/device_tree/include/lib/device_tree/libfdt_helpers.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2024 LK Trusty Authors. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+
+#include <libfdt.h>
+#include <lk/types.h>
+
+status_t fdt_helper_read_cells32(const fdt32_t* fdt_prop,
+                                 int fdt_prop_len,
+                                 int row_index,
+                                 int before_cells,
+                                 int cells,
+                                 int after_cells,
+                                 uint64_t* valp);
+
+status_t fdt_helper_get_reg(const void* fdt,
+                            int nodeoffset,
+                            int reg_index,
+                            paddr_t* addrp,
+                            size_t* sizep);