diff --git a/plat/st/common/include/stm32mp_common.h b/plat/st/common/include/stm32mp_common.h
index 7508004..cc06f5c 100644
--- a/plat/st/common/include/stm32mp_common.h
+++ b/plat/st/common/include/stm32mp_common.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018-2021, STMicroelectronics - All Rights Reserved
+ * Copyright (C) 2018-2022, STMicroelectronics - All Rights Reserved
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -37,6 +37,11 @@
 /* Check MMU status to allow spinlock use */
 bool stm32mp_lock_available(void);
 
+int stm32_get_otp_index(const char *otp_name, uint32_t *otp_idx,
+			uint32_t *otp_len);
+int stm32_get_otp_value(const char *otp_name, uint32_t *otp_val);
+int stm32_get_otp_value_from_idx(const uint32_t otp_idx, uint32_t *otp_val);
+
 /* Get IWDG platform instance ID from peripheral IO memory base address */
 uint32_t stm32_iwdg_get_instance(uintptr_t base);
 
diff --git a/plat/st/common/include/stm32mp_dt.h b/plat/st/common/include/stm32mp_dt.h
index a87f941..b7bf1d0 100644
--- a/plat/st/common/include/stm32mp_dt.h
+++ b/plat/st/common/include/stm32mp_dt.h
@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 2020-2021, STMicroelectronics - All Rights Reserved
- * Copyright (c) 2017-2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2020-2022, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2017-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -40,6 +40,7 @@
 struct rdev *dt_get_vdd_regulator(void);
 struct rdev *dt_get_cpu_regulator(void);
 const char *dt_get_board_model(void);
+int dt_find_otp_name(const char *name, uint32_t *otp, uint32_t *otp_len);
 int fdt_get_gpio_bank_pin_count(unsigned int bank);
 
 #endif /* STM32MP_DT_H */
diff --git a/plat/st/common/stm32mp_common.c b/plat/st/common/stm32mp_common.c
index fb8e08e..2297cd6 100644
--- a/plat/st/common/stm32mp_common.c
+++ b/plat/st/common/stm32mp_common.c
@@ -135,6 +135,55 @@
 					   STM32MP_DDR_MAX_SIZE);
 }
 
+int stm32_get_otp_index(const char *otp_name, uint32_t *otp_idx,
+			uint32_t *otp_len)
+{
+	assert(otp_name != NULL);
+	assert(otp_idx != NULL);
+
+	return dt_find_otp_name(otp_name, otp_idx, otp_len);
+}
+
+int stm32_get_otp_value(const char *otp_name, uint32_t *otp_val)
+{
+	uint32_t otp_idx;
+
+	assert(otp_name != NULL);
+	assert(otp_val != NULL);
+
+	if (stm32_get_otp_index(otp_name, &otp_idx, NULL) != 0) {
+		return -1;
+	}
+
+	if (stm32_get_otp_value_from_idx(otp_idx, otp_val) != 0) {
+		ERROR("BSEC: %s Read Error\n", otp_name);
+		return -1;
+	}
+
+	return 0;
+}
+
+int stm32_get_otp_value_from_idx(const uint32_t otp_idx, uint32_t *otp_val)
+{
+	uint32_t ret = BSEC_NOT_SUPPORTED;
+
+	assert(otp_val != NULL);
+
+#if defined(IMAGE_BL2)
+	ret = bsec_shadow_read_otp(otp_val, otp_idx);
+#elif defined(IMAGE_BL32)
+	ret = bsec_read_otp(otp_val, otp_idx);
+#else
+#error "Not supported"
+#endif
+	if (ret != BSEC_OK) {
+		ERROR("BSEC: idx=%u Read Error\n", otp_idx);
+		return -1;
+	}
+
+	return 0;
+}
+
 #if  defined(IMAGE_BL2)
 static void reset_uart(uint32_t reset)
 {
diff --git a/plat/st/common/stm32mp_dt.c b/plat/st/common/stm32mp_dt.c
index 863a90f..cf6c6e7 100644
--- a/plat/st/common/stm32mp_dt.c
+++ b/plat/st/common/stm32mp_dt.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -319,6 +319,73 @@
 }
 
 /*******************************************************************************
+ * dt_find_otp_name: get OTP ID and length in DT.
+ * name: sub-node name to look up.
+ * otp: pointer to read OTP number or NULL.
+ * otp_len: pointer to read OTP length in bits or NULL.
+ * return value: 0 if no error, an FDT error value otherwise.
+ ******************************************************************************/
+int dt_find_otp_name(const char *name, uint32_t *otp, uint32_t *otp_len)
+{
+	int node;
+	int index, len;
+	const fdt32_t *cuint;
+
+	if ((name == NULL) || (otp == NULL)) {
+		return -FDT_ERR_BADVALUE;
+	}
+
+	node = fdt_node_offset_by_compatible(fdt, -1, DT_NVMEM_LAYOUT_COMPAT);
+	if (node < 0) {
+		return node;
+	}
+
+	index = fdt_stringlist_search(fdt, node, "nvmem-cell-names", name);
+	if (index < 0) {
+		return index;
+	}
+
+	cuint = fdt_getprop(fdt, node, "nvmem-cells", &len);
+	if (cuint == NULL) {
+		return -FDT_ERR_NOTFOUND;
+	}
+
+	if ((index * (int)sizeof(uint32_t)) > len) {
+		return -FDT_ERR_BADVALUE;
+	}
+
+	cuint += index;
+
+	node = fdt_node_offset_by_phandle(fdt, fdt32_to_cpu(*cuint));
+	if (node < 0) {
+		ERROR("Malformed nvmem_layout node: ignored\n");
+		return node;
+	}
+
+	cuint = fdt_getprop(fdt, node, "reg", &len);
+	if ((cuint == NULL) || (len != (2 * (int)sizeof(uint32_t)))) {
+		ERROR("Malformed nvmem_layout node: ignored\n");
+		return -FDT_ERR_BADVALUE;
+	}
+
+	if (fdt32_to_cpu(*cuint) % sizeof(uint32_t)) {
+		ERROR("Misaligned nvmem_layout element: ignored\n");
+		return -FDT_ERR_BADVALUE;
+	}
+
+	if (otp != NULL) {
+		*otp = fdt32_to_cpu(*cuint) / sizeof(uint32_t);
+	}
+
+	if (otp_len != NULL) {
+		cuint++;
+		*otp_len = fdt32_to_cpu(*cuint) * CHAR_BIT;
+	}
+
+	return 0;
+}
+
+/*******************************************************************************
  * This function gets the pin count for a GPIO bank based from the FDT.
  * It also checks node consistency.
  ******************************************************************************/