1 files changed, 73 insertions, 0 deletions
diff --git a/platform/common/include/plat/fdt.h b/platform/common/include/plat/fdt.h
new file mode 100644
index 0000000..246243f
--- /dev/null
+++ b/platform/common/include/plat/fdt.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2018 Western Digital Corporation or its affiliates.
+ *
+ * Authors:
+ *   Anup Patel <anup.patel@wdc.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#ifndef __FDT_H__
+#define __FDT_H__
+
+#include <sbi/sbi_types.h>
+
+struct fdt_node {
+	char *data;
+	const struct fdt_node *parent;
+	const char *name;
+	int depth;
+	int address_cells;
+	int size_cells;
+};
+
+struct fdt_prop {
+	const struct fdt_node *node;
+	const char *name;
+	void *value;
+	u32 len;
+};
+
+/* Reverse byte-order of 32bit number */
+u32 fdt_rev32(u32 v);
+
+/* Length of a string */
+ulong fdt_strlen(const char *str);
+
+/* Compate two strings */
+int fdt_strcmp(const char *a, const char *b);
+
+/* Find index of matching string from a list of strings */
+int fdt_prop_string_index(const struct fdt_prop *prop,
+			      const char *str);
+
+/* Iterate over each property of matching node */
+int fdt_match_node_prop(void *fdt,
+			int (*match)(const struct fdt_node *node,
+				     const struct fdt_prop *prop,
+				     void *priv),
+			void *match_priv,
+			void (*fn)(const struct fdt_node *node,
+				   const struct fdt_prop *prop,
+				   void *priv),
+			void *fn_priv);
+
+/* Iterate over each property of compatible node */
+int fdt_compat_node_prop(void *fdt,
+			 const char *compat,
+			 void (*fn)(const struct fdt_node *node,
+				    const struct fdt_prop *prop,
+				    void *priv),
+			 void *fn_priv);
+
+/* Iterate over each node and property */
+int fdt_walk(void *fdt,
+	     void (*fn)(const struct fdt_node *node,
+		 	const struct fdt_prop *prop,
+			void *priv),
+	     void *fn_priv);
+
+/* Get size of FDT */
+u32 fdt_size(void *fdt);
+
+#endif