diff --git a/src/soc/qualcomm/x1p42100/cbmem.c b/src/soc/qualcomm/x1p42100/cbmem.c
index 5fff371d58..27a46f6f17 100644
--- a/src/soc/qualcomm/x1p42100/cbmem.c
+++ b/src/soc/qualcomm/x1p42100/cbmem.c
@@ -1,8 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <cbmem.h>
+#include <soc/symbols_common.h>
 
 uintptr_t cbmem_top_chipset(void)
 {
-	return (uintptr_t)4 * GiB;
+	return (uintptr_t)_dram_smem;
 }