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Message-ID: <56C0CB45.8030901@denx.de>
Date:   Sun, 14 Feb 2016 19:45:25 +0100
From:   Marek Vasut <marex@denx.de>
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To:     Antony Pavlov <antonynpavlov@gmail.com>
CC:     linux-mips@linux-mips.org, Ralf Baechle <ralf@linux-mips.org>,
        Alban Bedel <albeu@free.fr>, Wills Wang <wills.wang@live.com>,
        Daniel Schwierzeck <daniel.schwierzeck@gmail.com>,
        Weijie Gao <hackpascal@gmail.com>
Subject: Re: [PATCH 03/10] MIPS: ath79: Fix the ar724x clock calculation
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On 02/14/2016 06:02 PM, Antony Pavlov wrote:
> On Sun, 14 Feb 2016 14:44:36 +0100
> Marek Vasut <marex@denx.de> wrote:
> 
>> On 02/13/2016 10:58 PM, Antony Pavlov wrote:
>>> From: Weijie Gao <hackpascal@gmail.com>
>>>
>>> According to the AR7242 datasheet section 2.8, AR724X CPUs use a 40MHz
>>> input clock as the REF_CLK instead of 5MHz.
>>
>> Can't the AR71xx also use 25MHz clock source ?
> 
> 
> I have just googled AR7242 datasheet.
> I states that only 40 MHz reference clock is used.

Gotcha, so it's only the later chips which can do both.
Thanks!