diff --git a/plat/intel/soc/common/include/socfpga_fcs.h b/plat/intel/soc/common/include/socfpga_fcs.h
index e8f01f0..6b1f160 100644
--- a/plat/intel/soc/common/include/socfpga_fcs.h
+++ b/plat/intel/soc/common/include/socfpga_fcs.h
@@ -81,6 +81,7 @@
 #define FCS_ECDSA_SHA2_DATA_SIGN_CMD_MAX_WORD_SIZE		7U
 #define FCS_ECDSA_SHA2_DATA_SIG_VERIFY_CMD_MAX_WORD_SIZE	43U
 #define FCS_ECDSA_HASH_SIGN_CMD_MAX_WORD_SIZE			17U
+#define FCS_ECDSA_HASH_SIG_VERIFY_CMD_MAX_WORD_SIZE		52U
 #define FCS_ECDH_REQUEST_CMD_MAX_WORD_SIZE			29U
 /* FCS Payload Structure */
 typedef struct fcs_rng_payload_t {
@@ -248,6 +249,14 @@
 				uint64_t dst_addr, uint32_t *dst_size,
 				uint32_t *mbox_error);
 
+int intel_fcs_ecdsa_hash_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_hash_sig_verify_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);
+
 int intel_fcs_ecdsa_sha2_data_sign_init(uint32_t session_id,
 				uint32_t context_id, uint32_t key_id,
 				uint32_t param_size, uint64_t param_data,
diff --git a/plat/intel/soc/common/include/socfpga_mailbox.h b/plat/intel/soc/common/include/socfpga_mailbox.h
index b5d8e4b..90b1fa6 100644
--- a/plat/intel/soc/common/include/socfpga_mailbox.h
+++ b/plat/intel/soc/common/include/socfpga_mailbox.h
@@ -80,6 +80,7 @@
 #define MBOX_FCS_MAC_VERIFY_REQ				0x83
 #define MBOX_FCS_ECDSA_HASH_SIGN_REQ			0x84
 #define MBOX_FCS_ECDSA_SHA2_DATA_SIGN_REQ		0x85
+#define MBOX_FCS_ECDSA_HASH_SIG_VERIFY			0x86
 #define MBOX_FCS_ECDSA_SHA2_DATA_SIGN_VERIFY		0x87
 #define MBOX_FCS_ECDSA_GET_PUBKEY			0x88
 #define MBOX_FCS_ECDH_REQUEST				0x89
diff --git a/plat/intel/soc/common/include/socfpga_sip_svc.h b/plat/intel/soc/common/include/socfpga_sip_svc.h
index 332dc20..9c5088b 100644
--- a/plat/intel/soc/common/include/socfpga_sip_svc.h
+++ b/plat/intel/soc/common/include/socfpga_sip_svc.h
@@ -76,8 +76,9 @@
 #define INTEL_SIP_SMC_FCS_RANDOM_NUMBER_EXT			0x4200008F
 #define INTEL_SIP_SMC_FCS_CRYPTION				0x4200005B
 #define INTEL_SIP_SMC_FCS_CRYPTION_EXT				0xC2000090
+#define INTEL_SIP_SMC_FCS_SERVICE_REQUEST			0x4200005C
 #define INTEL_SIP_SMC_FCS_SEND_CERTIFICATE			0x4200005D
-#define INTEL_SIP_SMC_FCS_GET_PROVISION_DATA			0x4200005E
+#define INTEL_SIP_SMC_FCS_GET_PROVISION_DATA			0xC200005E
 #define INTEL_SIP_SMC_FCS_CNTR_SET_PREAUTH			0xC200005F
 #define INTEL_SIP_SMC_FCS_PSGSIGMA_TEARDOWN			0xC2000064
 #define INTEL_SIP_SMC_FCS_CHIP_ID				0xC2000065
@@ -101,6 +102,8 @@
 #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_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_FINALIZE	0xC2000088
 #define INTEL_SIP_SMC_FCS_ECDSA_GET_PUBKEY_INIT			0xC2000089