hi3531在nandflash上烧写jffs2文件系统的启动问题

uboot nand 信息
Nand(Hardware): Block:128KB Page:2KB Chip:128MB OOB:64B ECC:1bit
镜像制作
./mkfs.jffs2     -d rootfs_glibc_4release -n -l -e 0x20000 -s 0x800 --pad=0x2571000 -o xxx.jffs2

烧写命令
        mw.b 82000000 ff 7000000
        tftp 82000000 xxx.jffs2
        nand erase 1000000 7000000
        nand write.jffs2 82000000 1000000 2571000  
        setenv bootargs 'mem=128M console=ttyAMA0,115200 root=/dev/mtdblock2 rw rootfstype=jffs2,nolock mtdparts=hinand:1M(boot),15M(kernel),112M(rootfs)'

系统可以启动，但是内核启动时会有很多如下打印
Empty flash at 0x01630cb4 ends at 0x01631000
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x01631000: 0xffff instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x01631004: 0x0074 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x01631008: 0xffff instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0163100c: 0xffff instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x01631010: 0x0003 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x01631014: 0xffff instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0163101c: 0x0f00 instead
Empty flash at 0x01631020 ends at 0x01631024
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x01631024: 0xffff instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x01631028: 0x2a04 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0163102c: 0xffff instead
Further such events for this erase block will not be printed
Empty flash at 0x01631034 ends at 0x01631038
Empty flash at 0x0163103c ends at 0x01631040

有时候会出现很多，严重影响启动时间
网上搜索这种打印可以忽略？
不知什么原因，请教高手解答