diff --git a/src/soc/amd/cezanne/fsp_m_params.c b/src/soc/amd/cezanne/fsp_m_params.c
index 352aeef..9546721 100644
--- a/src/soc/amd/cezanne/fsp_m_params.c
+++ b/src/soc/amd/cezanne/fsp_m_params.c
@@ -36,6 +36,10 @@
 	return gfx_hda_dev->enabled;
 }
 
+__weak void mb_pre_fspm(void)
+{
+}
+
 static void fill_dxio_descriptors(FSP_M_CONFIG *mcfg,
 			const fsp_dxio_descriptor *descs, size_t num)
 {
@@ -171,4 +175,5 @@
 
 	fsp_fill_pcie_ddi_descriptors(mcfg);
 	fsp_assign_ioapic_upds(mcfg);
+	mb_pre_fspm();
 }