[U-Boot] U-Boot warnings on Nokia N900

Hello,

when starting U-Boot (from git master) on Nokia N900 it show lot of these lines on N900 screen:

Timed out in wait_for_event: status=0000 Check if pads/pull-ups of bus 1 are properly configured Timed out in wait_for_event: status=0000 Check if pads/pull-ups of bus 1 are properly configured ... i2c_read (addr phase): pads on bus 1 probably not configured (status=0x10) i2c_write: timeout writing last byte!

But booting linux kernel working without problem. What above warning messages means? They were not in U-Boot 2013.04 version.