On Thursday 15 January 2015 10:07:05 Pali Rohár wrote: > 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.
Ok, these warning/error lines are generated by this code:
/* reset lp5523 led */
i2c_set_bus_num(1);
state = 0xff;
i2c_write(0x32, 0x3d, 1, &state, 1);
i2c_set_bus_num(0);
in function misc_init_r() in file board/nokia/rx51/rx51.c
Above code worked fine in U-Boot 2013.04 and now in U-Boot from
git master it generates warnings/errors. Why?
--
Pali Rohár
[email protected]
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