efi_loader: add device-path utils

[u-boot] / include / dm / util.h

diff --git a/include/dm/util.h b/include/dm/util.h
index 7dbed6793f887dd38b50a8ef92f23b677e00ae3c..45529ce0e6a17db2653a56aa919ea898da674518 100644 (file)
--- a/include/dm/util.h
+++ b/include/dm/util.h
@@ -39,4 +39,39 @@ void dm_dump_all(void);
 /* Dump out a list of uclasses and their devices */
 void dm_dump_uclass(void);
 
+#ifdef CONFIG_DEBUG_DEVRES
+/* Dump out a list of device resources */
+void dm_dump_devres(void);
+#else
+static inline void dm_dump_devres(void)
+{
+}
+#endif
+
+/**
+ * Check if a dt node should be or was bound before relocation.
+ *
+ * Devicetree nodes can be marked as needed to be bound
+ * in the loader stages via special devicetree properties.
+ *
+ * Before relocation this function can be used to check if nodes
+ * are required in either SPL or TPL stages.
+ *
+ * After relocation and jumping into the real U-Boot binary
+ * it is possible to determine if a node was bound in one of
+ * SPL/TPL stages.
+ *
+ * There are 3 settings currently in use
+ * -
+ * - u-boot,dm-pre-reloc: legacy and indicates any of TPL or SPL
+ *   Existing platforms only use it to indicate nodes needee in
+ *   SPL. Should probably be replaced by u-boot,dm-spl for
+ *   existing platforms.
+ * @blob: devicetree
+ * @offset: node offset
+ *
+ * Returns true if node is needed in SPL/TL, false otherwise.
+ */
+bool dm_fdt_pre_reloc(const void *blob, int offset);
+
 #endif