nand: fix bug
iwdg: add code
vcom: fix bug
Merge branch 'redbull'
board.c: add reset to finsh
nand dirver: add UFFS_ECC_SOFT support for uffs
nand: fix bug k9f_nand.c, found by czkkkcs on forum of rt-thread.org
Merge pull request #1 from prife/master

sync