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.
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