hi all
i get a pandaboard es on my hand. it worked fine until yesterday. it can not boot, here is what displays by serial port:
U-Boot SPL 2011.12 (Apr 02 2012 - 18:13:04)
Texas Instruments OMAP4460 ES1.1
OMAP SD/MMC: 0
mmc_send_cmd: timedout waiting for cmddis!
** Can't read from device 0 **
spl: fat register err - -1
### ERROR ### Please RESET the board ###
it seems that something wrong with reading sd card. i did not change any hardware structure i promise.
can anyone tell me how to solve it?
thanks.