From mboxrd@z Thu Jan 1 00:00:00 1970 From: Valdis.Kletnieks@vt.edu (Valdis.Kletnieks at vt.edu) Date: Thu, 27 Mar 2014 12:31:29 -0400 Subject: MPC8641 based custom board Kernel stuck at 1000Mhz core clock In-Reply-To: Your message of "Thu, 27 Mar 2014 16:04:37 +0530." <5333FEBD.3050704@gmail.com> References: <52BBF1CB.3070006@gmail.com> <5333FEBD.3050704@gmail.com> Message-ID: <3723.1395937889@turing-police.cc.vt.edu> To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org 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. -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 848 bytes Desc: not available Url : http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20140327/09545e3e/attachment.bin