My cubieboard startup, automatic restart

[XiaoQI Ge]

I opened the WITH_FDT = yes, can now start, but not recognize my USB disk
Error message:

mountroot> ?

List of GEOM managed disk devices:


mountroot> ufs:/dev/da0s2
Trying to mount root from ufs:/dev/da0s2 []...
mountroot: waiting for device /dev/da0s2 ...
Mounting from ufs:/dev/da0s2 failed with error 19.

mountroot> ?

List of GEOM managed disk devices:

--
Regards.
By: XiaoQI Ge; PGP:8B09D5F7
WWW: https://www.7axu.com/



2013/7/10 XiaoQI Ge <ghw at 7axu.com>

> I've compiled a kernel (svn update to the latest)
> Start when the resumption of direct
>
> Error message:
>
> sun4i#mmcinfo
> Device: SUNXI SD/MMC
> Manufacturer ID: 36
> OEM: 414f
> Name:
> Tran Speed: 50000000
> Rd Block Len: 512
> SD version 2.0
> High Capacity: No
> Capacity: 240.8 MiB
> Bus Width: 4-bit
> sun4i#fatload mmc 0 0x40200000 kernel
> reading kernel
> 4860454 bytes read in 218 ms (21.3 MiB/s)
> sun4i#go 0x40201000
> ## Starting application at 0x40201000 ...
> data abort
>
>     MAYBE you should read doc/README.arm-unaligned-accesses
>
> pc : [<40201010>]          lr : [<5ff827d4>]
> sp : 5fe61e30  ip : 00000000     fp : 00000000
> r10: 00000003  r9 : 00000000     r8 : 5fe61f68
> r7 : 5ffb98a4  r6 : 00000001     r5 : 5fe63224  r4 : 40201000
> r3 : 00000000  r2 : 5fe63224     r1 : 5fe63224  r0 : 00000001
> Flags: nZCv  IRQs off  FIQs off  Mode SVC_32
> Resetting CPU ...
>
> resetting ...
>
> U-Boot SPL 2012.10-04259-g832a8e5 (Nov 09 2012 - 10:06:24)
> DRAM: 512MB
> SUNXI SD/MMC: 0
>