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Re: [PATCH] Alchemy: work around clock misdetection on early Au1000 (tak

To: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Subject: Re: [PATCH] Alchemy: work around clock misdetection on early Au1000 (take 2)
From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 27 Mar 2008 13:37:54 +0000
Cc: linux-mips@linux-mips.org
In-reply-to: <200803271609.31772.sshtylyov@ru.mvista.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <200803271609.31772.sshtylyov@ru.mvista.com>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.5.17 (2007-11-01)
On Thu, Mar 27, 2008 at 04:09:31PM +0300, Sergei Shtylyov wrote:

> Work around the CPU clock miscalculation on Au1000DA/HA/HB due the sys_cpupll
> register being write-only, i.e. actually do what the comment before 
> cal_r4off()
> function advertised for years but the code failed at.  This is achieved by 
> just
> giving user a chance to define the clock explicitly  in the board config. via
> CONFIG_SOC_AU1000_FREQUENCY option, defaulting to 396 MHz if the option is not
> given...
> 
> The patch is based on the AMD's big unpublished patch, the issue seems to be 
> an
> undocumented errata (or feature :-)...

Applied, thanks,

  Ralf

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