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From: "wilbur.chan" <wilbur512@gmail.com>
To: Linux MIPS Mailing List <linux-mips@linux-mips.org>
Subject: Problem in booting when calling calibrate_delay
Date: Thu, 29 Oct 2009 07:51:52 +0800	[thread overview]
Message-ID: <e997b7420910281651p24b8e367m1e2ddbc1b95ac623@mail.gmail.com> (raw)

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

kernel).


Can anyone tell me why this happed?

Thank you

             reply	other threads:[~2009-10-28 23:52 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-28 23:51 wilbur.chan [this message]
2009-11-01  7:14 ` Problem in booting when calling calibrate_delay Ralf Baechle
2009-11-01 15:18   ` wilbur.chan
2009-11-02 15:12   ` wilbur.chan

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