diff --git a/plat/imx/common/imx_sip_svc.c b/plat/imx/common/imx_sip_svc.c
index b6b8ff8..c625704 100644
--- a/plat/imx/common/imx_sip_svc.c
+++ b/plat/imx/common/imx_sip_svc.c
@@ -40,6 +40,8 @@
 	case IMX_SIP_HIFI_XRDC:
 		SMC_RET1(handle, imx_hifi_xrdc(smc_fid));
 		break;
+	case IMX_SIP_DDR_DVFS:
+		return dram_dvfs_handler(smc_fid, handle, x1, x2, x3);
 #endif
 #if defined(PLAT_imx8mq)
 	case IMX_SIP_GET_SOC_INFO:
diff --git a/plat/imx/common/include/imx_sip_svc.h b/plat/imx/common/include/imx_sip_svc.h
index 86523da..e154530 100644
--- a/plat/imx/common/include/imx_sip_svc.h
+++ b/plat/imx/common/include/imx_sip_svc.h
@@ -104,4 +104,9 @@
 int scmi_handler(uint32_t smc_fid, u_register_t x1, u_register_t x2, u_register_t x3);
 int imx_hifi_xrdc(uint32_t smc_fid);
 
+#if defined(PLAT_imx8ulp)
+int dram_dvfs_handler(uint32_t smc_fid, void *handle,
+	u_register_t x1, u_register_t x2, u_register_t x3);
+#endif
+
 #endif /* __IMX_SIP_SVC_H__ */