diff --git a/src/soc/intel/xeon_sp/uncore.c b/src/soc/intel/xeon_sp/uncore.c
index 1b232ea..ddc6e82 100644
--- a/src/soc/intel/xeon_sp/uncore.c
+++ b/src/soc/intel/xeon_sp/uncore.c
@@ -192,7 +192,7 @@
 	struct range_entry fsp_mem;
 
 	/* Only add dram resources once. */
-	if (dev->bus->secondary != 0 || dev->bus->segment_group != 0)
+	if (dev->upstream->secondary != 0 || dev->upstream->segment_group != 0)
 		return;
 
 	/* Read in the MAP registers and report their values. */