diff --git a/plat/intel/soc/common/include/socfpga_fcs.h b/plat/intel/soc/common/include/socfpga_fcs.h
index 8aeb628..37456bc 100644
--- a/plat/intel/soc/common/include/socfpga_fcs.h
+++ b/plat/intel/soc/common/include/socfpga_fcs.h
@@ -154,6 +154,7 @@
 	uint32_t key_id;
 	uint32_t crypto_param_size;
 	uint64_t crypto_param;
+	uint8_t is_updated;
 } fcs_crypto_service_data;
 
 typedef struct fcs_crypto_service_aes_data_t {
@@ -263,20 +264,21 @@
 				uint32_t context_id, uint32_t key_id,
 				uint32_t param_size, uint64_t param_data,
 				uint32_t *mbox_error);
-int intel_fcs_ecdsa_sha2_data_sign_finalize(uint32_t session_id,
+int intel_fcs_ecdsa_sha2_data_sign_update_finalize(uint32_t session_id,
 				uint32_t context_id, uint32_t src_addr,
 				uint32_t src_size, uint64_t dst_addr,
-				uint32_t *dst_size, uint32_t *mbox_error);
+				uint32_t *dst_size, uint8_t is_finalised,
+				uint32_t *mbox_error);
 
 int intel_fcs_ecdsa_sha2_data_sig_verify_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_sha2_data_sig_verify_finalize(uint32_t session_id,
+int intel_fcs_ecdsa_sha2_data_sig_verify_update_finalize(uint32_t session_id,
 				uint32_t context_id, uint32_t src_addr,
 				uint32_t src_size, uint64_t dst_addr,
 				uint32_t *dst_size, uint32_t data_size,
-				uint32_t *mbox_error);
+				uint8_t is_finalised, 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,
diff --git a/plat/intel/soc/common/include/socfpga_sip_svc.h b/plat/intel/soc/common/include/socfpga_sip_svc.h
index 41ed8b2..36ba4aa 100644
--- a/plat/intel/soc/common/include/socfpga_sip_svc.h
+++ b/plat/intel/soc/common/include/socfpga_sip_svc.h
@@ -116,10 +116,12 @@
 #define INTEL_SIP_SMC_FCS_ECDSA_HASH_SIGN_INIT			0xC200007D
 #define INTEL_SIP_SMC_FCS_ECDSA_HASH_SIGN_FINALIZE		0xC200007F
 #define INTEL_SIP_SMC_FCS_ECDSA_SHA2_DATA_SIGN_INIT		0xC2000080
+#define INTEL_SIP_SMC_FCS_ECDSA_SHA2_DATA_SIGN_UPDATE		0xC2000081
 #define INTEL_SIP_SMC_FCS_ECDSA_SHA2_DATA_SIGN_FINALIZE		0xC2000082
 #define INTEL_SIP_SMC_FCS_ECDSA_HASH_SIG_VERIFY_INIT		0xC2000083
 #define INTEL_SIP_SMC_FCS_ECDSA_HASH_SIG_VERIFY_FINALIZE	0xC2000085
 #define INTEL_SIP_SMC_FCS_ECDSA_SHA2_DATA_SIG_VERIFY_INIT	0xC2000086
+#define INTEL_SIP_SMC_FCS_ECDSA_SHA2_DATA_SIG_VERIFY_UPDATE	0xC2000087
 #define INTEL_SIP_SMC_FCS_ECDSA_SHA2_DATA_SIG_VERIFY_FINALIZE	0xC2000088
 #define INTEL_SIP_SMC_FCS_ECDSA_GET_PUBKEY_INIT			0xC2000089
 #define INTEL_SIP_SMC_FCS_ECDSA_GET_PUBKEY_FINALIZE		0xC200008B