endif
ifneq ($(CONFIG_SYS_NAND_BLOCK_SIZE),)
CONFIG_U_BOOT_IMG_SIZE := $(shell echo 'e=$(CONFIG_SYS_NAND_BLOCK_SIZE);s=640*1024;s + (e - s % e) % e + 3*e' | bc)
-CONFIG_SYS_USERFS_SIZE := $(shell expr \( $(CONFIG_SYS_NAND_BLOCKS) - 12 \) \* $(CONFIG_SYS_NAND_BLOCK_SIZE) - $(CONFIG_U_BOOT_IMG_SIZE) - 36 \* 1048576)
-CONFIG_SYS_USERFS_SIZE2 := $(shell expr \( $(CONFIG_SYS_NAND_BLOCKS) - 15 \) \* $(CONFIG_SYS_NAND_BLOCK_SIZE) - $(CONFIG_U_BOOT_IMG_SIZE) - 36 \* 1048576)
+CONFIG_SYS_USERFS_SIZE := $(shell expr \( $(CONFIG_SYS_NAND_BLOCKS) - 12 \) \* $(CONFIG_SYS_NAND_BLOCK_SIZE) - $(CONFIG_U_BOOT_IMG_SIZE) - 38 \* 1048576)
+CONFIG_SYS_USERFS_SIZE2 := $(shell expr \( $(CONFIG_SYS_NAND_BLOCKS) - 15 \) \* $(CONFIG_SYS_NAND_BLOCK_SIZE) - $(CONFIG_U_BOOT_IMG_SIZE) - 38 \* 1048576)
CONFIG_SYS_NAND_BBT_BLOCKS := 4
CONFIG_SYS_NAND_DTB_BLOCKS := 4