diff --git a/interface/src/tfm_firmware_update_ipc_api.c b/interface/src/tfm_firmware_update_ipc_api.c
new file mode 100644
index 0000000..0118488
--- /dev/null
+++ b/interface/src/tfm_firmware_update_ipc_api.c
@@ -0,0 +1,193 @@
+/*
+ * Copyright (c) 2021, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#include "psa/update.h"
+#include "tfm_api.h"
+
+#include "psa/client.h"
+#include "psa_manifest/sid.h"
+
+#define IOVEC_LEN(x) (uint32_t)(sizeof(x)/sizeof(x[0]))
+
+psa_status_t psa_fwu_write(const psa_image_id_t image_id,
+                           size_t block_offset,
+                           const void *block,
+                           size_t block_size)
+{
+    psa_status_t status;
+    psa_handle_t handle;
+
+    psa_invec in_vec[] = {
+        { .base = &image_id, .len = sizeof(image_id) },
+        { .base = &block_offset, .len = sizeof(block_offset) },
+        { .base = block, .len = block_size }
+    };
+
+    handle = psa_connect(TFM_FWU_WRITE_SID, TFM_FWU_WRITE_VERSION);
+    if (!PSA_HANDLE_IS_VALID(handle)) {
+        return PSA_ERROR_GENERIC_ERROR;
+    }
+
+    status = psa_call(handle, PSA_IPC_CALL, in_vec, IOVEC_LEN(in_vec), NULL,
+                      0);
+
+    psa_close(handle);
+
+    if (status == (psa_status_t)TFM_ERROR_INVALID_PARAMETER) {
+        return PSA_ERROR_INVALID_ARGUMENT;
+    }
+
+    return status;
+}
+
+psa_status_t psa_fwu_install(const psa_image_id_t image_id,
+                             psa_image_id_t *dependency_uuid,
+                             psa_image_version_t *dependency_version)
+{
+    psa_status_t status;
+    psa_handle_t handle;
+
+    psa_invec in_vec[] = {
+        { .base = &image_id, .len = sizeof(image_id) }
+    };
+
+    psa_outvec out_vec[] = {
+        { .base = dependency_uuid, .len = sizeof(*dependency_uuid) },
+        { .base = dependency_version, .len = sizeof(*dependency_version)}
+    };
+
+    if ((dependency_uuid == NULL) || (dependency_version == NULL)) {
+        return PSA_ERROR_INVALID_ARGUMENT;
+    }
+
+    handle = psa_connect(TFM_FWU_INSTALL_SID, TFM_FWU_INSTALL_VERSION);
+    if (!PSA_HANDLE_IS_VALID(handle)) {
+        return PSA_ERROR_GENERIC_ERROR;
+    }
+
+    status = psa_call(handle, PSA_IPC_CALL, in_vec, IOVEC_LEN(in_vec),
+                      out_vec, IOVEC_LEN(out_vec));
+
+    psa_close(handle);
+
+    if (status == (psa_status_t)TFM_ERROR_INVALID_PARAMETER) {
+        return PSA_ERROR_INVALID_ARGUMENT;
+    }
+
+    return status;
+}
+
+psa_status_t psa_fwu_abort(const psa_image_id_t image_id)
+{
+    psa_status_t status;
+    psa_handle_t handle;
+
+    psa_invec in_vec[] = {
+        { .base = &image_id, .len = sizeof(image_id) }
+    };
+
+    handle = psa_connect(TFM_FWU_ABORT_SID, TFM_FWU_ABORT_VERSION);
+    if (!PSA_HANDLE_IS_VALID(handle)) {
+        return PSA_ERROR_GENERIC_ERROR;
+    }
+
+    status = psa_call(handle, PSA_IPC_CALL, in_vec, IOVEC_LEN(in_vec), NULL,
+                      0);
+
+    psa_close(handle);
+
+    if (status == (psa_status_t)TFM_ERROR_INVALID_PARAMETER) {
+        return PSA_ERROR_INVALID_ARGUMENT;
+    }
+
+    return status;
+}
+
+psa_status_t psa_fwu_query(const psa_image_id_t image_id, psa_image_info_t *info)
+{
+    psa_status_t status;
+    psa_handle_t handle;
+
+    psa_invec in_vec[] = {
+        { .base = &image_id, .len = sizeof(image_id) }
+    };
+    psa_outvec out_vec[] = {
+        { .base = info, .len = sizeof(*info)}
+    };
+
+    handle = psa_connect(TFM_FWU_QUERY_SID, TFM_FWU_QUERY_VERSION);
+    if (!PSA_HANDLE_IS_VALID(handle)) {
+        return PSA_ERROR_GENERIC_ERROR;
+    }
+
+    status = psa_call(handle, PSA_IPC_CALL, in_vec, IOVEC_LEN(in_vec), out_vec,
+                      IOVEC_LEN(out_vec));
+
+    psa_close(handle);
+
+    if (status == (psa_status_t)TFM_ERROR_INVALID_PARAMETER) {
+        return PSA_ERROR_INVALID_ARGUMENT;
+    }
+
+    return status;
+}
+
+psa_status_t psa_fwu_request_reboot(void)
+{
+    psa_handle_t handle;
+    psa_status_t status;
+
+    handle = psa_connect(TFM_FWU_REQUEST_REBOOT_SID,
+                         TFM_FWU_REQUEST_REBOOT_VERSION);
+    if (!PSA_HANDLE_IS_VALID(handle)) {
+        return PSA_ERROR_GENERIC_ERROR;
+    }
+
+    status = psa_call(handle, PSA_IPC_CALL, NULL, 0, NULL, 0);
+
+    psa_close(handle);
+
+    if (status == (psa_status_t)TFM_ERROR_INVALID_PARAMETER) {
+        return PSA_ERROR_INVALID_ARGUMENT;
+    }
+
+    return status;
+}
+
+psa_status_t psa_fwu_accept(void)
+{
+    psa_handle_t handle;
+    psa_status_t status;
+
+    handle = psa_connect(TFM_FWU_ACCEPT_SID,
+                         TFM_FWU_ACCEPT_VERSION);
+    if (!PSA_HANDLE_IS_VALID(handle)) {
+        return PSA_ERROR_GENERIC_ERROR;
+    }
+
+    status = psa_call(handle, PSA_IPC_CALL, NULL, 0, NULL, 0);
+
+    psa_close(handle);
+
+    if (status == (psa_status_t)TFM_ERROR_INVALID_PARAMETER) {
+        return PSA_ERROR_INVALID_ARGUMENT;
+    }
+
+    return status;
+}
+
+psa_status_t psa_fwu_set_manifest(psa_image_id_t image_id,
+                                  const void *manifest,
+                                  size_t manifest_size,
+                                  psa_hash_t *manifest_dependency)
+{
+    psa_status_t status;
+
+    status = PSA_ERROR_NOT_SUPPORTED;
+
+    return status;
+}