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?