diff --git a/drivers/st/ddr/stm32mp1_ddr.c b/drivers/st/ddr/stm32mp1_ddr.c
index 27d8b2c..af14781 100644
--- a/drivers/st/ddr/stm32mp1_ddr.c
+++ b/drivers/st/ddr/stm32mp1_ddr.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018-2022, STMicroelectronics - All Rights Reserved
+ * Copyright (C) 2018-2024, STMicroelectronics - All Rights Reserved
  *
  * SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
  */
@@ -215,7 +215,7 @@
 {
 	uint32_t pgsr;
 	int error = 0;
-	uint64_t timeout = timeout_init_us(TIMEOUT_US_1S);
+	uint64_t timeout = timeout_init_us(DDR_TIMEOUT_US_1S);
 
 	do {
 		pgsr = mmio_read_32((uintptr_t)&phy->pgsr);
@@ -266,7 +266,7 @@
 		mmio_read_32((uintptr_t)&phy->pir));
 
 	/* Need to wait 10 configuration clock before start polling */
-	udelay(10);
+	udelay(DDR_DELAY_10US);
 
 	/* Wait DRAM initialization and Gate Training Evaluation complete */
 	stm32mp1_ddrphy_idone_wait(phy);
@@ -279,7 +279,7 @@
 	uint32_t stat;
 	int break_loop = 0;
 
-	timeout = timeout_init_us(TIMEOUT_US_1S);
+	timeout = timeout_init_us(DDR_TIMEOUT_US_1S);
 	for ( ; ; ) {
 		uint32_t operating_mode;
 		uint32_t selref_type;
@@ -614,7 +614,7 @@
 	mmio_clrbits_32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCAPBRST);
 
 	/* 1.4. wait 128 cycles to permit initialization of end logic */
-	udelay(2);
+	udelay(DDR_DELAY_2US);
 	/* For PCLK = 133MHz => 1 us is enough, 2 to allow lower frequency */
 
 	/* 1.5. initialize registers ddr_umctl2 */
diff --git a/drivers/st/ddr/stm32mp_ddr.c b/drivers/st/ddr/stm32mp_ddr.c
index 2136c71..620aa04 100644
--- a/drivers/st/ddr/stm32mp_ddr.c
+++ b/drivers/st/ddr/stm32mp_ddr.c
@@ -65,7 +65,7 @@
 	VERBOSE("[0x%lx] swctl = 0x%x\n",
 		(uintptr_t)&ctl->swctl, mmio_read_32((uintptr_t)&ctl->swctl));
 
-	timeout = timeout_init_us(TIMEOUT_US_1S);
+	timeout = timeout_init_us(DDR_TIMEOUT_US_1S);
 	do {
 		swstat = mmio_read_32((uintptr_t)&ctl->swstat);
 		VERBOSE("[0x%lx] swstat = 0x%x ",
diff --git a/include/drivers/st/stm32mp_ddr.h b/include/drivers/st/stm32mp_ddr.h
index 4535e3c..f28f8d6 100644
--- a/include/drivers/st/stm32mp_ddr.h
+++ b/include/drivers/st/stm32mp_ddr.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2022-2023, STMicroelectronics - All Rights Reserved
+ * Copyright (C) 2022-2024, STMicroelectronics - All Rights Reserved
  *
  * SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
  */
@@ -57,7 +57,12 @@
 	size_t size;    /* Memory size in byte = col * row * width */
 };
 
-#define TIMEOUT_US_1S	1000000U
+#define DDR_DELAY_1US		1U
+#define DDR_DELAY_2US		2U
+#define DDR_DELAY_10US		10U
+#define DDR_DELAY_50US		50U
+#define DDR_TIMEOUT_500US	500U
+#define DDR_TIMEOUT_US_1S	1000000U
 
 void stm32mp_ddr_set_reg(const struct stm32mp_ddr_priv *priv, enum stm32mp_ddr_reg_type type,
 			 const void *param, const struct stm32mp_ddr_reg_info *ddr_registers);