1、请问我的am335x板子从内核加载成功到启动文件系统(ubi)大约用了6秒钟的时间，这个正常吗？
2、为什么在启动ubi文件系统时卡了一下：
1.327911] UBI: physical eraseblock size: 131072 bytes (128 KiB)
[ 1.334472] UBI: logical eraseblock size: 126976 bytes
[ 1.340118] UBI: smallest flash I/O unit: 2048
[ 1.345001] UBI: VID header offset: 2048 (aligned 2048)
[ 1.351287] UBI: data offset: 4096
[ 5.383605] UBI: max. sequence number: 1568
[ 5.406188] UBI: attached mtd6 to ubi0
[ 5.410186] UBI: MTD device name: "File System"
[ 5.415924] UBI: MTD device size: 472 MiB
[ 5.421142] UBI: number of good PEBs: 3780
[ 5.426086] UBI: number of bad PEBs: 0
[ 5.430725] UBI: number of corrupted PEBs: 0
[ 5.435394] UBI: max. allowed volumes: 128
[ 5.440246] UBI: wear-leveling threshold: 4096
[ 5.445159] UBI: number of internal volumes: 1
[ 5.449829] UBI: number of user volumes: 1
[ 5.454467] UBI: available PEBs: 0
[ 5.459136] UBI: total number of reserved PEBs: 3780
[ 5.464355] UBI: number of PEBs reserved for bad PEB handling: 37
这个时间可以缩短吗？谢谢！
