Hello，@pengyong_zhang
Which like ranYang's said，the first we try the uuu eexample-script, and it stucked at kobs-ng. And today we try the another script which from 把手教你以 Standalone 方式编译（八）- NAND Flash
uuu_version 1.2.39
SDPS: boot -f flash.bin
# These commands will be run when use SPL and will be skipped if no spl
# SDPU will be deprecated. please use SDPV instead of SDPU
# {
SDPU: delay 1000
SDPU: write -f flash.bin -offset 0x57c00
SDPU: jump
# }
# These commands will be run when use SPL and will be skipped if no spl
# if (SPL support SDPV)
# {
SDPV: delay 1000
SDPV: write -f flash.bin -skipspl
SDPV: jump
# }
FB: ucmd setenv fastboot_buffer ${loadaddr}
FB: download -f flash.bin
FB: ucmd if test ! -n "$fastboot_bytes"; then setenv fastboot_bytes $filesize; else true; fi
FB[-t 60000]: ucmd fspinand init spi-nand0 ${fastboot_buffer} ${fastboot_bytes}
FB: ucmd setenv fastboot_buffer ${loadaddr}
FB: download -f Image
FB: ucmd setenv fastboot_buffer ${fdt_addr}
FB: download -f imx93-11x11-evk-flexspi-nand-m2.dtb
FB: ucmd setenv fastboot_buffer ${initrd_addr}
FB: download -f fsl-image-mfgtool-initramfs-imx_mfgtools.cpio.zst.u-boot
FB: ucmd setenv bootargs ${bootargs} ${mtdparts}
FB: acmd ${kboot} ${loadaddr} ${initrd_addr} ${fdt_addr}
FBK: ucmd cat /proc/mtd
FBK: ucmd cat /proc/mtd | while read dev size erase name; do mtd=${dev:3}; mtd=${mtd%:}; name=${name%\"}; name=${name#\"}; echo export $name=$mtd >> /tmp/mtd.sh; done;
FBK: ucmd chmod 777 /tmp/mtd.sh
FBK: ucmd mount -t debugfs debugfs /sys/kernel/debug
# burn kernel
FBK: ucmd source /tmp/mtd.sh; flash_erase /dev/mtd${nandkernel} 0 0
FBK: ucp Image t:/tmp/img
FBK: ucmd source /tmp/mtd.sh; nandwrite -p /dev/mtd${nandkernel} -p /tmp/img
# burn dtb
FBK: ucmd source /tmp/mtd.sh; flash_erase /dev/mtd${nanddtb} 0 0
FBK: ucp imx93-11x11-evk-flexspi-nand-m2.dtb t:/tmp/dtb
FBK: ucmd source /tmp/mtd.sh; nandwrite -p /dev/mtd${nanddtb} -p /tmp/dtb
# burn uTee
# FBK: ucmd source /tmp/mtd.sh; flash_erase /dev/mtd${nandtee} 0 0
# FBK: ucp _tee t:/tmp/tee
# FBK: ucmd source /tmp/mtd.sh; nandwrite -p /dev/mtd${nandtee} -p /tmp/tee
# burn rootfs
FBK: ucmd source /tmp/mtd.sh; flash_erase /dev/mtd${nandrootfs} 0 0
FBK: ucmd source /tmp/mtd.sh; ubiattach /dev/ubi_ctrl -m ${nandrootfs}
FBK: ucmd source /tmp/mtd.sh; ubimkvol /dev/ubi0 -Nnandrootfs -m
FBK: ucmd source /tmp/mtd.sh; mkdir -p /mnt/mtd
FBK: ucmd source /tmp/mtd.sh; mount -t ubifs ubi0:nandrootfs /mnt/mtd
FBK: acmd export EXTRACT_UNSAFE_SYMLINKS=1; tar --zstd --warning=no-timestamp -x -C /mnt/mtd
FBK: ucp core-image-base-imx93-11x11-lpddr4x-evk.rootfs-20241211083856.tar.zst t:-
FBK: sync
FBK: ucmd umount /mnt/mtd
FBK: done
But, it still stuck the fspinand cmd, and it report follow error:
[2025-06-30 10:21:07] u-boot=> fspinand init spi-nand0 ${fastboot_buffer} ${fastboot_bytes}
[2025-06-30 10:21:17] Unknown command 'fspinand init spi-nand0' - try 'help'
