config SUNXI_NAND tristate "The sunxi nand driver" default n help The nand used on the platform. If unsure, say m. source "modules/nand/common1/Kconfig" config SUNXI_NAND_IOCTL_SECBLK depends on (SUNXI_NAND) bool "Support ioctl for nand secure storage item" default y help Ioctl for secure storage item config SUNXI_NAND_IOCTL_SECKV depends on (SUNXI_NAND) bool "Support ioctl for nand secure storage kv" default n help Ioctl for secure storage kv config SUNXI_NAND_IOCTL_SECKV_PROTECT depends on (SUNXI_NAND_IOCTL_SECKV) bool "Protect nand secure storage kv" default y help If y, write kv to secure storage will default with protect flag, then you can't overwrite it unless erase first.