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Problem in booting when calling calibrate_delay

To: Linux MIPS Mailing List <>
Subject: Problem in booting when calling calibrate_delay
From: "wilbur.chan" <>
Date: Thu, 29 Oct 2009 07:51:52 +0800
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I was going to boot mips64  xlr408, which has 8 cores.

Howerver, the code seemd to stop before calling 'start_kernel--->

calibrate_delay ' .

So Iadded some 'printk' in  calibrate_delay,  to check out why it failed.

 However,  if I added a 'printk' in any 'if  branches'  in

'calibrate_delay '  function  , the kernel would halt  before calling

'j  start_kernel'  in head.S. (in this situation ,printk seemed

unavailable, so  I  wrote directlly to serial address  to trace the


Can anyone tell me why this happed?

Thank you

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