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RE: [PATCH] TX4927 processor can support different speeds

To: Brad Larson <Brad_Larson@pmc-sierra.com>
Subject: RE: [PATCH] TX4927 processor can support different speeds
From: "Maciej W. Rozycki" <macro@linux-mips.org>
Date: Tue, 25 Jan 2005 00:37:01 +0000 (GMT)
Cc: Manish Lachwani <mlachwani@mvista.com>, Ralf Baechle <ralf@linux-mips.org>, Thiemo Seufer <ica2_ts@csv.ica.uni-stuttgart.de>, linux-mips@linux-mips.org
In-reply-to: <04781D450CFF604A9628C8107A62FCCF013DDBC4@sjc1exm01.pmc_nt.nt.pmc-sierra.bc.ca>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <04781D450CFF604A9628C8107A62FCCF013DDBC4@sjc1exm01.pmc_nt.nt.pmc-sierra.bc.ca>
Sender: linux-mips-bounce@linux-mips.org
On Mon, 24 Jan 2005, Brad Larson wrote:

> I've seen more boards with slightly, sometimes dramatically, modified 
> cpu clock source for performance and production reliability reasons than 
> not having an external RTC.  External RTC present and one kernel can 
> accurately enough report the cpu frequency for Toshiba "stock" values 
> and others as well.

 And you don't need a full-blown RTC even -- any reasonably accessible 
reference clock with a known frequency will do.

  Maciej

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