if ROCKCHIP_RK3399 choice prompt "RK3399 board select" config TARGET_EVB_RK3399 bool "RK3399 evaluation board" help RK3399evb is a evaluation board for Rockchp rk3399, with full function and phisical connectors support like type-C ports, usb2.0 host ports, LVDS, JTAG, MAC, SDcard, HDMI, USB-2-serial... endchoice config SYS_SOC default "rockchip" config SYS_MALLOC_F_LEN default 0x0800 source "board/rockchip/evb_rk3399/Kconfig" endif