+
+CONFIG_SYS_NAND_BLOCK_SIZE := 131072
+CONFIG_U_BOOT_PART_SIZE := 1048576
+ifeq ($(CONFIG_SYS_NAND_BLOCKS),)
+CONFIG_SYS_NAND_BLOCKS := 1024
+endif
+CONFIG_SYS_NAND_BBT_BLOCKS := 4
+CONFIG_SYS_NAND_DTB_BLOCKS := 4
+CONFIG_SYS_ENV_BLOCKS := 3
+CONFIG_SYS_LINUX_PART_SIZE := $(shell expr 6 \* 1048576)
+CONFIG_SYS_ROOTFS_PART_SIZE := $(shell expr 32 \* 1048576)
+CONFIG_SYS_SYSTEM_BLOCKS := $(shell expr $(CONFIG_SYS_NAND_BBT_BLOCKS) + $(CONFIG_SYS_NAND_DTB_BLOCKS) + $(CONFIG_SYS_ENV_BLOCKS) + 1)
+CONFIG_SYS_USERFS_SIZE := $(shell expr \( $(CONFIG_SYS_NAND_BLOCKS) - $(CONFIG_SYS_SYSTEM_BLOCKS) \) \* $(CONFIG_SYS_NAND_BLOCK_SIZE) - $(CONFIG_U_BOOT_PART_SIZE) - $(CONFIG_SYS_LINUX_PART_SIZE) - $(CONFIG_SYS_ROOTFS_PART_SIZE))
+CONFIG_SYS_USERFS_SIZE2 := $(shell expr \( $(CONFIG_SYS_NAND_BLOCKS) - $(CONFIG_SYS_SYSTEM_BLOCKS) - $(CONFIG_SYS_ENV_BLOCKS) \) \* $(CONFIG_SYS_NAND_BLOCK_SIZE) - $(CONFIG_U_BOOT_PART_SIZE) - $(CONFIG_SYS_LINUX_PART_SIZE) - $(CONFIG_SYS_ROOTFS_PART_SIZE))
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_SYSTEM_BLOCKS=$(shell printf "%u" `expr $(CONFIG_SYS_SYSTEM_BLOCKS)`)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_ENV_PART_SIZE=$(shell printf "%uk" `expr $(CONFIG_SYS_ENV_BLOCKS) \* $(CONFIG_SYS_NAND_BLOCK_SIZE) / 1024`)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_NAND_BBT_OFFSET=$(shell printf "0x%x" `expr \( $(CONFIG_SYS_NAND_BLOCKS) - $(CONFIG_SYS_NAND_BBT_BLOCKS) \) \* $(CONFIG_SYS_NAND_BLOCK_SIZE)`)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_NAND_BLOCKS=$(CONFIG_SYS_NAND_BLOCKS)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_NAND_DTB_OFFSET=$(shell printf "0x%x" `expr \( $(CONFIG_SYS_NAND_BLOCKS) - $(CONFIG_SYS_NAND_DTB_BLOCKS) - $(CONFIG_SYS_NAND_BBT_BLOCKS) \) \* $(CONFIG_SYS_NAND_BLOCK_SIZE)`)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_USERFS_PART_SIZE=$(shell printf "%uk" `expr $(CONFIG_SYS_USERFS_SIZE) / 1024`)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_USERFS_PART_SIZE2=$(shell printf "%uk" `expr $(CONFIG_SYS_USERFS_SIZE2) / 1024`)