diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h
index 2d23e304f5ec1083b9850e46fe817c74b4e78d00..a9aa845dbe74c864d9b5126d272051b5e18223f6 100644
--- a/drivers/edac/edac_core.h
+++ b/drivers/edac/edac_core.h
@@ -136,6 +136,7 @@ enum mem_type {
 	MEM_DDR2,		/* DDR2 RAM */
 	MEM_FB_DDR2,		/* fully buffered DDR2 */
 	MEM_RDDR2,		/* Registered DDR2 RAM */
+	MEM_XDR,		/* Rambus XDR */
 };
 
 #define MEM_FLAG_EMPTY		BIT(MEM_EMPTY)
@@ -152,6 +153,7 @@ enum mem_type {
 #define MEM_FLAG_DDR2           BIT(MEM_DDR2)
 #define MEM_FLAG_FB_DDR2        BIT(MEM_FB_DDR2)
 #define MEM_FLAG_RDDR2          BIT(MEM_RDDR2)
+#define MEM_FLAG_XDR            BIT(MEM_XDR)
 
 /* chipset Error Detection and Correction capabilities and mode */
 enum edac_type {
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 9aac88027fb31f8a7398fa33173c396983fd7ad2..021d18795145cbc364e676d763ed8369ccea8ee1 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -73,7 +73,8 @@ static const char *mem_types[] = {
 	[MEM_RMBS] = "RMBS",
 	[MEM_DDR2] = "Unbuffered-DDR2",
 	[MEM_FB_DDR2] = "FullyBuffered-DDR2",
-	[MEM_RDDR2] = "Registered-DDR2"
+	[MEM_RDDR2] = "Registered-DDR2",
+	[MEM_XDR] = "XDR"
 };
 
 static const char *dev_types[] = {