arch/arm/mach-tegra/tegra210/Kconfig

if TEGRA210

choice
	prompt "Tegra210 board select"

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/p2571/Kconfig"

endif