#PLATFORM_CPPFLAGS += -DDEBUG
#PLATFORM_CPPFLAGS += -Wno-unused-but-set-variable
PLATFORM_CPPFLAGS += -Werror
+
+# calculate U_BOOT_IMG_SIZE to be at least 3 eraseblocks larger than the maximum expected image size
+CONFIG_SYS_NAND_BLOCK_SIZE := 131072
+CONFIG_SYS_NAND_BLOCKS := 1024
+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 \( $(CONFIG_SYS_NAND_BLOCKS) - 9 \) \* $(CONFIG_SYS_NAND_BLOCK_SIZE) - $(CONFIG_U_BOOT_IMG_SIZE) - 36 \* 1048576)
+CONFIG_SYS_USERFS_SIZE2 = $(shell expr \( $(CONFIG_SYS_NAND_BLOCKS) - 12 \) \* $(CONFIG_SYS_NAND_BLOCK_SIZE) - $(CONFIG_U_BOOT_IMG_SIZE) - 36 \* 1048576)
+
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_NAND_BLOCK_SIZE=$(CONFIG_SYS_NAND_BLOCK_SIZE)
+PLATFORM_CPPFLAGS += -DCONFIG_U_BOOT_IMG_SIZE=$(CONFIG_U_BOOT_IMG_SIZE)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_U_BOOT_PART_SIZE=$(shell printf "%uk" `expr $(CONFIG_U_BOOT_IMG_SIZE) / 1024`)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_NAND_U_BOOT_OFFS=$(shell printf "0x%x" `expr $(CONFIG_SYS_NAND_BLOCK_SIZE)`)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_ENV_PART_SIZE=$(shell printf "%uk" `expr 3 \* $(CONFIG_SYS_NAND_BLOCK_SIZE) / 1024`)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_USERFS_PART_SIZE=$(shell printf "%uk" `expr $(CONFIG_SYS_USERFS_SIZE) / 1024`)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_USERFS_PART_SIZE2=$(shell printf "%uk" `expr $(CONFIG_SYS_USERFS_SIZE) / 1024`)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_DTB_PART_SIZE=$(shell printf "%uk" `expr $(CONFIG_SYS_NAND_BLOCK_SIZE) / 1024`)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_NAND_BBT_SIZE=$(shell printf "%uk" `expr 4 \* $(CONFIG_SYS_NAND_BLOCK_SIZE) / 1024`)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_NAND_BBT_OFFSET=$(shell printf "0x%x" `expr \( $(CONFIG_SYS_NAND_BLOCKS) - 4 \) \* $(CONFIG_SYS_NAND_BLOCK_SIZE)`)
+endif
#endif /* CONFIG_MFG */
#define CONFIG_LOADADDR 18000000
#define CONFIG_SYS_LOAD_ADDR _pfx(0x, CONFIG_LOADADDR)
-#define CONFIG_U_BOOT_IMG_SIZE SZ_1M
#define CONFIG_IMX_WATCHDOG
#define CONFIG_WATCHDOG_TIMEOUT_MSECS 3000
#define CONFIG_MTD_DEBUG
#define CONFIG_MTD_DEBUG_VERBOSE 4
#endif
-#ifndef CONFIG_SYS_NAND_BLOCK_SIZE
-#define CONFIG_SYS_NAND_BLOCK_SIZE SZ_128K
-#endif
#define CONFIG_NAND_MXS
#define CONFIG_NAND_MXS_NO_BBM_SWAP
#define CONFIG_APBH_DMA
#define CONFIG_APBH_DMA_BURST
#define CONFIG_APBH_DMA_BURST8
-#define CONFIG_SYS_NAND_U_BOOT_OFFS CONFIG_SYS_NAND_BLOCK_SIZE
#define CONFIG_CMD_NAND_TRIMFFS
#define CONFIG_SYS_MXS_DMA_CHANNEL 4
#define CONFIG_SYS_MAX_FLASH_BANKS 1
#define MTDPARTS_DEFAULT "mtdparts=" MTD_NAME ":" \
xstr(CONFIG_SYS_U_BOOT_PART_SIZE) \
- "@" xstr(CONFIG_SYS_U_BOOT_OFFSET) \
+ "@" xstr(CONFIG_SYS_NAND_U_BOOT_OFFS) \
"(u-boot)," \
CONFIG_SYS_ENV_PART_STR \
"4m(linux),32m(rootfs)," CONFIG_SYS_USERFS_PART_STR "," \