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Booting with MMC0 very slow and hangs...

Santhosh Ramani
Expert 2765 points
Other Parts Discussed in Thread: TPS65217

Hell,

I'm using the AM335x with TPS65217, I've got all the power rails with correct voltage output...1.8V, 1.1V (MPU) and 3.3V. I do see boot messages print out from the console..

The following messages print out first...

U-Boot SPL 2011.09 (Oct 26 2012 - 12:55:03)
Texas Instruments Revision detection unimplemented

As expected, then I get the debug messages (since I've defined DEBUG in common.h)

>>board_init_f()
>>spl:board_init_r()


But there is a significant delay between when the first 2 lines are printed and when the next 2 get printed... It continues to print the boot device - 8 (MMC1) but then it just hangs.. no response. Has anyone seen something like this, or can you point me in the right direction.

Please do let me know if you need more information from my side.

Thank you

Regards

Santhosh

  • 0
    Expert 2765 points

    Hello,

    I've some update regarding my boot procedure, hopefully this helps to better understand the problem. I've tried booting from UART0 and MMC0 now and in both cases the results are pretty similar. I've noticed that even within the tests the code execution is not consistent... as in the amount of delay is not constant..it varies between resets.

    At this point I'm thinking either there is a problem with the PLLs or may be there is some additional hardware issue. Has anyone seen something similar with initial board bring up??

    Thank you

    Regards

    Santhosh