Re: MPC8641 based custom board Kernel stuck at 1000Mhz core clock

On Thu, 27 Mar 2014 16:04:37 +0530, Ashish said:

Hi,

I am using MPC8641-HPCN based custom board and able to boot linux at MPX clock 400Mhz and core clock 800mhz. When I am increasing core frequency ie MPX clock at 400Mhz and core at 1Ghz, kernel stuck.

Step 0: Prove to us that your core actually runs reliable and stably at 1Ghz. Step 1: Figure out *where* it gets stuck. If you have earlyprintk working on your board, adding 'initcall_debug ignore_loglevel' to the kernel cmdline often helps track down where a kernel hangs during boot.