u-boot nand配置选项

CONFIG_FLASH_CFI_LEGACY CONFIG_FLASH_CFI_DRIVER CONFIG_FLASH_CFI_MTD

https://blog.csdn.net/novawl/article/details/7875289

https://blog.csdn.net/han_dawei/article/details/43059139

https://www.xuebuyuan.com/1975553.html

http://xilinx.eetrend.com/content/2021/100553647.html

CONFIG_MTD_CONCAT   https://www.cnblogs.com/slzuo/p/15031263.html