diff --git a/src/soc/rockchip/rk3399/Kconfig b/src/soc/rockchip/rk3399/Kconfig
index 283f6c2c9e..43bb03bd4e 100644
--- a/src/soc/rockchip/rk3399/Kconfig
+++ b/src/soc/rockchip/rk3399/Kconfig
@@ -6,6 +6,7 @@ config SOC_ROCKCHIP_RK3399
 	select ARCH_ROMSTAGE_ARMV8_64
 	select ARCH_VERSTAGE_ARMV8_64
 	select ARM64_A53_ERRATUM_843419
+	select ARM64_USE_ARM_TRUSTED_FIRMWARE
 	select BOOTBLOCK_CONSOLE
 	select DRIVERS_UART_8250MEM_32
 	select GENERIC_UDELAY
diff --git a/src/soc/rockchip/rk3399/Makefile.inc b/src/soc/rockchip/rk3399/Makefile.inc
index 773d87f32e..4b67502a37 100644
--- a/src/soc/rockchip/rk3399/Makefile.inc
+++ b/src/soc/rockchip/rk3399/Makefile.inc
@@ -58,6 +58,7 @@ ramstage-y += ../common/i2c.c
 ramstage-y += soc.c
 ramstage-y += timer.c
 
+BL31_MAKEARGS += PLAT=rk3399
 ################################################################################
 
 CPPFLAGS_common += -Isrc/soc/rockchip/rk3399/include