diff --git a/plat/nxp/common/tbbr/tbbr.mk b/plat/nxp/common/tbbr/tbbr.mk
index 25852ba..7edcfbc 100644
--- a/plat/nxp/common/tbbr/tbbr.mk
+++ b/plat/nxp/common/tbbr/tbbr.mk
@@ -1,5 +1,5 @@
 #
-# Copyright 2020 NXP
+# Copyright 2020-2022 NXP
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -13,6 +13,12 @@
 CSF_FILE		:=	input_blx_ch${CHASSIS}
 BL2_CSF_FILE		:=	input_bl2_ch${CHASSIS}
 else
+ifeq ($(CHASSIS), 3)
+CSF_FILE		:=	input_blx_ch${CHASSIS}
+BL2_CSF_FILE		:=	input_bl2_ch${CHASSIS}
+PBI_CSF_FILE		:=	input_pbi_ch${CHASSIS}
+$(eval $(call add_define, CSF_HDR_CH3))
+else
 ifeq ($(CHASSIS), 3_2)
 CSF_FILE		:=	input_blx_ch3
 BL2_CSF_FILE		:=	input_bl2_ch${CHASSIS}
@@ -22,6 +28,7 @@
     $(error -> CHASSIS not set!)
 endif
 endif
+endif
 
 PLAT_AUTH_PATH		:=  $(PLAT_DRIVERS_PATH)/auth