diff --git a/src/soc/amd/stoneyridge/chip.h b/src/soc/amd/stoneyridge/chip.h
index 4e1aa66eea..de6585e164 100644
--- a/src/soc/amd/stoneyridge/chip.h
+++ b/src/soc/amd/stoneyridge/chip.h
@@ -18,8 +18,12 @@
 
 #include <stdint.h>
 
+#define MAX_NODES 1
+#define MAX_DRAM_CH 1
+#define MAX_DIMMS_PER_CH 2
+
 struct soc_amd_stoneyridge_config {
-	u8 spdAddrLookup[1][1][2];
+	u8 spdAddrLookup[MAX_NODES][MAX_DRAM_CH][MAX_DIMMS_PER_CH];
 };
 
 typedef struct soc_amd_stoneyridge_config config_t;