ok got it
i turned it on and got this
�HELLO! BOOT0 is starting!
boot0 version : 2.0.0�
read dram para.
dram driver version: 1.15
dram size =1024MB
0xffffffff
super_standby_flag = 0
Succeed in opening nand flash.
block from 2 to 6
deal block 2
Succeed in reading Boot1 file head.
The size of Boot1 is 0x00068000.
The file stored in 0x00000000 of block 2 is perfect.
Check is correct.
Ready to disable icache.
Succeed in loading Boot1.
Jump to Boot1.
[ 0.148] boot1 version : 2.0.0
[ 0.148] script installed early ok
[ 0.149] pmu type = 3
[ 0.253] bat vol = 0 mv
[ 0.266] axi:ahb:apb=4:2:2
[ 0.266] set dcdc2=1400mv, clock=912M successed
[ 0.269] key
[ 0.281] no key found
[ 0.281] flash init start
[ 0.281] NB1 : enter NFB_Init
[ 0.284] NB1 : enter phy init
[ 0.287] [NAND] nand driver(b) version: 0x0x00000002, 0x0x00000012, data: 0x20130627
[ 0.295] get the good blk ratio from hwscan : 944
[ 0.300] NB1 : nand phy init ok
[ 0.342] get mbr error
[ 0.342] NB1 : init ok
[ 0.342] flash init finish
[ 0.346] mbr magic is not correct
[ 0.348] fs init fail
[ 0.351] fs init fail, jump to fe