1choice 2 prompt "LCD backlight control" 3 optional 4 default S5P4418_ONEWIRE 5 6config S5P4418_ONEWIRE 7 bool "I2C / 1-Wire" 8 help 9 This enables LCD-Backlight control for FriendlyARM LCD-panels. 10 I2C is used if available, otherwise 1-Wire is used. 11 12config PWM_NX 13 bool "PWM" 14 help 15 This enables LCD-Backlight control via PWM. 16endchoice 17 18config ROOT_DEV 19 int "ROOT_DEV" 20 help 21 Environment variable rootdev is set to this value if env. var. firstboot 22 does not exist. Otherwise rootdev is set to the MMC boot device. rootdev 23 determines (together with env. var. bootpart) where the OS (linux) is 24 booted from. 25 26config BOOT_PART 27 int "BOOT_PART" 28 help 29 Environment variable bootpart is set to this value. bootpart determines 30 (together with env. var. rootdev) where the OS (linux) is booted from. 31 32config ROOT_PART 33 int "ROOT_PART" 34 help 35 Environment variable rootpart is set to this value. 36 37source "board/friendlyarm/nanopi2/Kconfig" 38