diff --git a/include/drivers/st/stm32mp1_ddr.h b/include/drivers/st/stm32mp1_ddr.h
index b434930..67dfac3 100644
--- a/include/drivers/st/stm32mp1_ddr.h
+++ b/include/drivers/st/stm32mp1_ddr.h
@@ -101,12 +101,14 @@
 	uint32_t pcfgqos1_0;
 	uint32_t pcfgwqos0_0;
 	uint32_t pcfgwqos1_0;
+#if STM32MP_DDR_DUAL_AXI_PORT
 	uint32_t pcfgr_1;
 	uint32_t pcfgw_1;
 	uint32_t pcfgqos0_1;
 	uint32_t pcfgqos1_1;
 	uint32_t pcfgwqos0_1;
 	uint32_t pcfgwqos1_1;
+#endif
 };
 
 struct stm32mp1_ddrphy_reg {
@@ -119,8 +121,10 @@
 	uint32_t zq0cr1;
 	uint32_t dx0gcr;
 	uint32_t dx1gcr;
+#if STM32MP_DDR_32BIT_INTERFACE
 	uint32_t dx2gcr;
 	uint32_t dx3gcr;
+#endif
 };
 
 struct stm32mp1_ddrphy_timing {