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diff --git a/board/friendlyarm/Kconfig b/board/friendlyarm/Kconfig
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+choice
+ prompt "LCD backlight control"
+ optional
+ default S5P4418_ONEWIRE
+
+config S5P4418_ONEWIRE
+ bool "I2C / 1-Wire"
+ help
+ This enables LCD-Backlight control for FriendlyARM LCD-panels.
+ I2C is used if available, otherwise 1-Wire is used.
+
+config PWM_NX
+ bool "PWM"
+ help
+ This enables LCD-Backlight control via PWM.
+endchoice
+
+config ROOT_DEV
+ int "ROOT_DEV"
+ help
+ Environment variable rootdev is set to this value if env. var. firstboot
+ does not exist. Otherwise rootdev is set to the MMC boot device. rootdev
+ determines (together with env. var. bootpart) where the OS (linux) is
+ booted from.
+
+config BOOT_PART
+ int "BOOT_PART"
+ help
+ Environment variable bootpart is set to this value. bootpart determines
+ (together with env. var. rootdev) where the OS (linux) is booted from.
+
+config ROOT_PART
+ int "ROOT_PART"
+ help
+ Environment variable rootpart is set to this value.
+
+source "board/friendlyarm/nanopi2/Kconfig"