diff --git a/drivers/ddr/fsl/interactive.c b/drivers/ddr/fsl/interactive.c
index 2f76beb2dbe..eb2f06e8300 100644
--- a/drivers/ddr/fsl/interactive.c
+++ b/drivers/ddr/fsl/interactive.c
@@ -27,9 +27,9 @@
 /* Option parameter Structures */
 struct options_string {
 	const char *option_name;
-	size_t offset;
-	unsigned int size;
-	const char printhex;
+	u32 offset : 9;
+	u32 size : 4;
+	u32 printhex : 1;
 };
 
 static unsigned int picos_to_mhz(unsigned int picos)