diff --git a/plat/arm/board/n1sdp/n1sdp_bl31_setup.c b/plat/arm/board/n1sdp/n1sdp_bl31_setup.c
new file mode 100644
index 0000000..65aad9c
--- /dev/null
+++ b/plat/arm/board/n1sdp/n1sdp_bl31_setup.c
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "../../css/drivers/scmi/scmi.h"
+#include "../../css/drivers/mhu/css_mhu_doorbell.h"
+#include <platform_def.h>
+
+static scmi_channel_plat_info_t n1sdp_scmi_plat_info = {
+		.scmi_mbx_mem = N1SDP_SCMI_PAYLOAD_BASE,
+		.db_reg_addr = PLAT_CSS_MHU_BASE + CSS_SCMI_MHU_DB_REG_OFF,
+		.db_preserve_mask = 0xfffffffe,
+		.db_modify_mask = 0x1,
+		.ring_doorbell = &mhu_ring_doorbell,
+};
+
+scmi_channel_plat_info_t *plat_css_get_scmi_info()
+{
+	return &n1sdp_scmi_plat_info;
+}