[BPI R3]debian reboot problem

hi somtimes if i do an reboot i got the error

Error: “initrd” not defined

PARTITION_CONFIG only exists on eMMC sd available j>edec_spi_nor spi_nor@0: unrecognized JEDEC id bytes: ff, ef, aa Failed to initialize SPI flash at 0:0 (error 0) NAND available sd nand fit=bpi-r3.itb ** No partition table - mmc 0 ** Couldn’t find partition mmc 0:5 Can’t set block device BPI-R3>

if i wait a while an do an reset on the u-boot console he boots up reguar.

how can i fix this

Initrd error can be ignored…it comes from check if the var is defined…

The other one is known but not reproducable, i guess it is a clock issue in uboot,but we have not found a fix for it yet. Poweroff and wait is the only way to workaround atm