diff --git a/plat/imx/common/include/sci/sci_rpc.h b/plat/imx/common/include/sci/sci_rpc.h
new file mode 100644
index 0000000..052f361
--- /dev/null
+++ b/plat/imx/common/include/sci/sci_rpc.h
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/*!
+ * Header file for the RPC implementation.
+ */
+
+#ifndef SC_RPC_H
+#define SC_RPC_H
+
+/* Includes */
+
+#include <sci/sci_types.h>
+#include <sci/sci_ipc.h>
+#include <stdbool.h>
+
+/* Defines */
+
+#define SC_RPC_VERSION          1U
+
+#define SC_RPC_MAX_MSG          8U
+
+#define RPC_VER(MSG)            ((MSG)->version)
+#define RPC_SIZE(MSG)           ((MSG)->size)
+#define RPC_SVC(MSG)            ((MSG)->svc)
+#define RPC_FUNC(MSG)           ((MSG)->func)
+#define RPC_R8(MSG)             ((MSG)->func)
+#define RPC_I32(MSG, IDX)       ((MSG)->DATA.i32[(IDX) / 4U])
+#define RPC_I16(MSG, IDX)       ((MSG)->DATA.i16[(IDX) / 2U])
+#define RPC_I8(MSG, IDX)        ((MSG)->DATA.i8[(IDX)])
+#define RPC_U32(MSG, IDX)       ((MSG)->DATA.u32[(IDX) / 4U])
+#define RPC_U16(MSG, IDX)       ((MSG)->DATA.u16[(IDX) / 2U])
+#define RPC_U8(MSG, IDX)        ((MSG)->DATA.u8[(IDX)])
+
+#define SC_RPC_SVC_UNKNOWN      0U
+#define SC_RPC_SVC_RETURN       1U
+#define SC_RPC_SVC_PM           2U
+#define SC_RPC_SVC_RM           3U
+#define SC_RPC_SVC_TIMER        5U
+#define SC_RPC_SVC_PAD          6U
+#define SC_RPC_SVC_MISC         7U
+#define SC_RPC_SVC_IRQ          8U
+#define SC_RPC_SVC_ABORT        9U
+
+#define SC_RPC_ASYNC_STATE_RD_START      0U
+#define SC_RPC_ASYNC_STATE_RD_ACTIVE     1U
+#define SC_RPC_ASYNC_STATE_RD_DONE       2U
+#define SC_RPC_ASYNC_STATE_WR_START      3U
+#define SC_RPC_ASYNC_STATE_WR_ACTIVE     4U
+#define SC_RPC_ASYNC_STATE_WR_DONE       5U
+
+#define SC_RPC_MU_GIR_SVC       0x1U
+#define SC_RPC_MU_GIR_DBG       0x8U
+
+/* Types */
+
+typedef uint8_t sc_rpc_svc_t;
+
+typedef struct sc_rpc_msg_s {
+	uint8_t version;
+	uint8_t size;
+	uint8_t svc;
+	uint8_t func;
+	union {
+		int32_t i32[(SC_RPC_MAX_MSG - 1U)];
+		int16_t i16[(SC_RPC_MAX_MSG - 1U) * 2U];
+		int8_t i8[(SC_RPC_MAX_MSG - 1U) * 4U];
+		uint32_t u32[(SC_RPC_MAX_MSG - 1U)];
+		uint16_t u16[(SC_RPC_MAX_MSG - 1U) * 2U];
+		uint8_t u8[(SC_RPC_MAX_MSG - 1U) * 4U];
+	} DATA;
+} sc_rpc_msg_t;
+
+typedef uint8_t sc_rpc_async_state_t;
+
+typedef struct sc_rpc_async_msg_s {
+	sc_rpc_async_state_t state;
+	uint8_t wordIdx;
+	sc_rpc_msg_t msg;
+	uint32_t timeStamp;
+} sc_rpc_async_msg_t;
+
+/* Functions */
+
+/*!
+ * This is an internal function to send an RPC message over an IPC
+ * channel. It is called by client-side SCFW API function shims.
+ *
+ * @param[in]     ipc         IPC handle
+ * @param[in,out] msg         handle to a message
+ * @param[in]     no_resp     response flag
+ *
+ * If \a no_resp is SC_FALSE then this function waits for a response
+ * and returns the result in \a msg.
+ */
+void sc_call_rpc(sc_ipc_t ipc, sc_rpc_msg_t *msg, bool no_resp);
+
+/*!
+ * This is an internal function to dispath an RPC call that has
+ * arrived via IPC over an MU. It is called by server-side SCFW.
+ *
+ * @param[in]     mu          MU message arrived on
+ * @param[in,out] msg         handle to a message
+ *
+ * The function result is returned in \a msg.
+ */
+void sc_rpc_dispatch(sc_rsrc_t mu, sc_rpc_msg_t *msg);
+
+/*!
+ * This function translates an RPC message and forwards on to the
+ * normal RPC API.  It is used only by hypervisors.
+ *
+ * @param[in]     ipc         IPC handle
+ * @param[in,out] msg         handle to a message
+ *
+ * This function decodes a message, calls macros to translate the
+ * resources, pads, addresses, partitions, memory regions, etc. and
+ * then forwards on to the hypervisors SCFW API.Return results are
+ * translated back abd placed back into the message to be returned
+ * to the original API.
+ */
+void sc_rpc_xlate(sc_ipc_t ipc, sc_rpc_msg_t *msg);
+
+#endif				/* SC_RPC_H */