initcall: Support manual relocation

Move the manual-relocation code to the initcall file. Make sure to avoid
manually relocating event types. Only true function pointers should be
relocated.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/board_r.c b/common/board_r.c
index 8586086..7c1fbc6 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -813,10 +813,8 @@
 #endif
 	gd->flags &= ~GD_FLG_LOG_READY;
 
-	if (IS_ENABLED(CONFIG_NEEDS_MANUAL_RELOC)) {
-		for (int i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
-			MANUAL_RELOC(init_sequence_r[i]);
-	}
+	if (IS_ENABLED(CONFIG_NEEDS_MANUAL_RELOC))
+		initcall_manual_reloc(init_sequence_r);
 
 	if (initcall_run_list(init_sequence_r))
 		hang();
diff --git a/include/initcall.h b/include/initcall.h
index 62d3bb6..208effd 100644
--- a/include/initcall.h
+++ b/include/initcall.h
@@ -35,4 +35,11 @@
  */
 int initcall_run_list(const init_fnc_t init_sequence[]);
 
+/**
+ * initcall_manual_reloc() - Do manual relocation on an initcall sequence
+ *
+ * @init_sequence: NULL-terminated init sequence to relocate
+ */
+void initcall_manual_reloc(init_fnc_t init_sequence[]);
+
 #endif
diff --git a/lib/initcall.c b/lib/initcall.c
index 33b7d76..480490e 100644
--- a/lib/initcall.c
+++ b/lib/initcall.c
@@ -97,3 +97,13 @@
 
 	return 0;
 }
+
+void initcall_manual_reloc(init_fnc_t init_sequence[])
+{
+	init_fnc_t *ptr;
+
+	for (ptr = init_sequence; *ptr; ptr++) {
+		if (!initcall_is_event(*ptr))
+			MANUAL_RELOC(*ptr);
+	}
+}