diff --git a/README b/README
index ba57dc5..6800b95 100644
--- a/README
+++ b/README
@@ -4916,6 +4916,9 @@
 - CONFIG_FSL_DDR_INTERACTIVE
 		Enable interactive DDR debugging. See doc/README.fsl-ddr.
 
+- CONFIG_FSL_DDR_SYNC_REFRESH
+		Enable sync of refresh for multiple controllers.
+
 - CONFIG_SYS_83XX_DDR_USES_CS0
 		Only for 83xx systems. If specified, then DDR should
 		be configured using CS0 and CS1 instead of CS2 and CS3.