diff --git a/plat/intel/soc/common/include/socfpga_fcs.h b/plat/intel/soc/common/include/socfpga_fcs.h
index 15b7a2c..f58f9fa 100644
--- a/plat/intel/soc/common/include/socfpga_fcs.h
+++ b/plat/intel/soc/common/include/socfpga_fcs.h
@@ -76,6 +76,8 @@
 #define FCS_MAC_VERIFY_CMD_MAX_WORD_SIZE	23U
 #define FCS_MAC_VERIFY_RESP_MAX_WORD_SIZE	4U
 #define FCS_SHA_HMAC_CRYPTO_PARAM_SIZE_OFFSET	8U
+
+#define FCS_ECDSA_GET_PUBKEY_MAX_WORD_SIZE	5U
 /* FCS Payload Structure */
 typedef struct fcs_rng_payload_t {
 	uint32_t session_id;
@@ -234,6 +236,13 @@
 				uint64_t dst_addr, uint32_t *dst_size,
 				uint32_t data_size, uint32_t *mbox_error);
 
+int intel_fcs_ecdsa_get_pubkey_init(uint32_t session_id, uint32_t context_id,
+				uint32_t key_id, uint32_t param_size,
+				uint64_t param_data, uint32_t *mbox_error);
+int intel_fcs_ecdsa_get_pubkey_finalize(uint32_t session_id, uint32_t context_id,
+				uint64_t dst_addr, uint32_t *dst_size,
+				uint32_t *mbox_error);
+
 int intel_fcs_aes_crypt_init(uint32_t session_id, uint32_t context_id,
 				uint32_t key_id, uint64_t param_addr,
 				uint32_t param_size, uint32_t *mbox_error);
diff --git a/plat/intel/soc/common/include/socfpga_mailbox.h b/plat/intel/soc/common/include/socfpga_mailbox.h
index a7e2bc3..1d749a0 100644
--- a/plat/intel/soc/common/include/socfpga_mailbox.h
+++ b/plat/intel/soc/common/include/socfpga_mailbox.h
@@ -78,6 +78,7 @@
 #define MBOX_FCS_AES_CRYPT_REQ				0x81
 #define MBOX_FCS_GET_DIGEST_REQ				0x82
 #define MBOX_FCS_MAC_VERIFY_REQ				0x83
+#define MBOX_FCS_ECDSA_GET_PUBKEY			0x88
 #define MBOX_FCS_OPEN_CS_SESSION			0xA0
 #define MBOX_FCS_CLOSE_CS_SESSION			0xA1
 #define MBOX_FCS_IMPORT_CS_KEY				0xA5
diff --git a/plat/intel/soc/common/include/socfpga_sip_svc.h b/plat/intel/soc/common/include/socfpga_sip_svc.h
index 3c92a4a..ff13af9 100644
--- a/plat/intel/soc/common/include/socfpga_sip_svc.h
+++ b/plat/intel/soc/common/include/socfpga_sip_svc.h
@@ -100,10 +100,13 @@
 #define INTEL_SIP_SMC_FCS_GET_DIGEST_FINALIZE		0xC2000079
 #define INTEL_SIP_SMC_FCS_MAC_VERIFY_INIT		0xC200007A
 #define INTEL_SIP_SMC_FCS_MAC_VERIFY_FINALIZE		0xC200007C
+#define INTEL_SIP_SMC_FCS_ECDSA_GET_PUBKEY_INIT		0xC2000089
+#define INTEL_SIP_SMC_FCS_ECDSA_GET_PUBKEY_FINALIZE	0xC200008B
 
 #define INTEL_SIP_SMC_FCS_SHA_MODE_MASK			0xF
 #define INTEL_SIP_SMC_FCS_DIGEST_SIZE_MASK		0xF
 #define INTEL_SIP_SMC_FCS_DIGEST_SIZE_OFFSET		4U
+#define INTEL_SIP_SMC_FCS_ECC_ALGO_MASK			0xF
 /* ECC DBE */
 #define WARM_RESET_WFI_FLAG				BIT(31)
 #define SYSMGR_ECC_DBE_COLD_RST_MASK			(SYSMGR_ECC_OCRAM_MASK |\