diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index c3893b0ddb18..129ff9c36a78 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -146,6 +146,9 @@ const char * const edac_mem_types[] = {
 	"Rambus XDR",
 	"Unbuffered DDR3 RAM",
 	"Registered DDR3 RAM",
+	"Load-Reduced DDR3 RAM",
+	"Unbuffered DDR4 RAM",
+	"Registered DDR4 RAM",
 };
 EXPORT_SYMBOL_GPL(edac_mem_types);
 
diff --git a/include/linux/edac.h b/include/linux/edac.h
index e1e68da6f35c..da3b72e95db3 100644
--- a/include/linux/edac.h
+++ b/include/linux/edac.h
@@ -194,7 +194,8 @@ static inline char *mc_event_error_type(const unsigned int err_type)
  * @MEM_DDR3:		DDR3 RAM
  * @MEM_RDDR3:		Registered DDR3 RAM
  *			This is a variant of the DDR3 memories.
- * @MEM_DDR4:		DDR4 RAM
+ * @MEM_LRDDR3		Load-Reduced DDR3 memory.
+ * @MEM_DDR4:		Unbuffered DDR4 RAM
  * @MEM_RDDR4:		Registered DDR4 RAM
  *			This is a variant of the DDR4 memories.
  */
@@ -216,6 +217,7 @@ enum mem_type {
 	MEM_XDR,
 	MEM_DDR3,
 	MEM_RDDR3,
+	MEM_LRDDR3,
 	MEM_DDR4,
 	MEM_RDDR4,
 };