diff --git a/plat/intel/soc/common/include/socfpga_mailbox.h b/plat/intel/soc/common/include/socfpga_mailbox.h
index 82f9fd3..dfa409f 100644
--- a/plat/intel/soc/common/include/socfpga_mailbox.h
+++ b/plat/intel/soc/common/include/socfpga_mailbox.h
@@ -48,6 +48,7 @@
 #define MBOX_CMD_GET_IDCODE				0x10
 #define MBOX_CMD_GET_USERCODE				0x13
 #define MBOX_CMD_GET_CHIPID				0x12
+#define MBOX_CMD_FPGA_CONFIG_COMP			0x45
 #define MBOX_CMD_REBOOT_HPS				0x47
 
 /* Reconfiguration Commands */
@@ -260,4 +261,6 @@
 int mailbox_seu_err_status(uint32_t *resp_buf, uint32_t resp_buf_len);
 int mailbox_safe_inject_seu_err(uint32_t *arg, unsigned int len);
 
+int mailbox_send_fpga_config_comp(void);
+
 #endif /* SOCFPGA_MBOX_H */
diff --git a/plat/intel/soc/common/soc/socfpga_mailbox.c b/plat/intel/soc/common/soc/socfpga_mailbox.c
index 5d31e99..94895ba 100644
--- a/plat/intel/soc/common/soc/socfpga_mailbox.c
+++ b/plat/intel/soc/common/soc/socfpga_mailbox.c
@@ -622,6 +622,22 @@
 	return MBOX_RET_OK;
 }
 
+int mailbox_send_fpga_config_comp(void)
+{
+	int ret;
+
+	ret = mailbox_send_cmd(MBOX_JOB_ID, MBOX_CMD_FPGA_CONFIG_COMP, NULL, 0U,
+				 CMD_CASUAL, NULL, NULL);
+
+	if (ret != 0) {
+		INFO("SOCFPGA: FPGA configuration complete response, Return Code: 0x%x\n",
+			MBOX_RESP_ERR(-ret));
+		return MBOX_RET_ERROR;
+	}
+
+	return MBOX_RET_OK;
+}
+
 int intel_mailbox_get_config_status(uint32_t cmd, bool init_done)
 {
 	int status;
diff --git a/plat/intel/soc/common/socfpga_sip_svc.c b/plat/intel/soc/common/socfpga_sip_svc.c
index 3c223c1..68deab9 100644
--- a/plat/intel/soc/common/socfpga_sip_svc.c
+++ b/plat/intel/soc/common/socfpga_sip_svc.c
@@ -222,6 +222,19 @@
 	unsigned int size = 0;
 	unsigned int resp_len = ARRAY_SIZE(response);
 
+#if PLATFORM_MODEL == PLAT_SOCFPGA_AGILEX5
+	/*
+	 * To trigger isolation
+	 * FPGA configuration complete signal should be de-asserted
+	 */
+	INFO("SOCFPGA: Request SDM to trigger isolation\n");
+	status = mailbox_send_fpga_config_comp();
+
+	if (status < 0) {
+		INFO("SOCFPGA: Isolation for FPGA configuration complete is not executed\n");
+	}
+#endif
+
 	request_type = RECONFIGURATION;
 
 	if (!CONFIG_TEST_FLAG(flag, PARTIAL_CONFIG)) {