if TEGRA210 choice prompt "Tegra210 board select" config TARGET_E2220_1170 bool "NVIDIA Tegra210 E2220-1170 board" help E2220-1170 is a Tegra210 bringup board with onboard SoC, DRAM, eMMC, SD card slot, HDMI, USB micro-B port, and sockets for various expansion modules. config TARGET_P2571 bool "NVIDIA Tegra210 P2571 base board" help P2571 is a P2530 married to a P1963 I/O board endchoice config SYS_SOC default "tegra210" source "board/nvidia/e2220-1170/Kconfig" source "board/nvidia/p2571/Kconfig" endif