How to boot jffs2 rootfs from nandflash?

I want boot rootfs filesyetm from nandflash? but always failuare

jffs2: jffs2_scan_inode():CRC failed on node at 0x000001f0: Read 0x00030000, calculated 0x9bd724b5
jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 nof found at 0x0000023c: 0x564e instead
jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 nof found at 0x00000240: 0x1136 instead
jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 nof found at 0x00000244: 0xff62 instead
jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 nof found at 0x0000023c: 0xf244 instead