使用mkfs.jffs2
mkyaffsimage->
./mkyaffs2image rootfs yaffs2-root.img 3 4
1200000<->10603a0(hex)
mount -t yaffs2 /dev/mtdblock2 /home/wpp
top
nand 1G+3G=4G
fdisk&disk -l & df
driver/mtd/nand/<->kernel panic
spi<-> nand
nand_base.c/ids
OOB/ECC