diff --git a/src/soc/intel/xeon_sp/cpx/ramstage.c b/src/soc/intel/xeon_sp/cpx/ramstage.c
index deb9030c20..1e0ba008c2 100644
--- a/src/soc/intel/xeon_sp/cpx/ramstage.c
+++ b/src/soc/intel/xeon_sp/cpx/ramstage.c
@@ -1,8 +1,14 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <fsp/api.h>
+#include <smbios.h>
 
 int soc_fsp_multi_phase_init_is_enable(void)
 {
 	return 0;
 }
+
+unsigned int smbios_cpu_get_max_speed_mhz(void)
+{
+	return 3900;
+}