From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Subject: Re: [RFC][PATCH] at91_ide driver
Date: Thu, 22 Jan 2009 15:24:18 +0300
Message-ID: <49786572.1030408@ru.mvista.com>
References: <200901141345.42583.stf_xl@wp.pl> <4975B065.6030705@ru.mvista.com> <200901221212.55528.stf_xl@wp.pl> <49786138.20809@ru.mvista.com> <497863B6.4040306@ru.mvista.com>
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To: Stanislaw Gruszka <stf_xl@wp.pl>
Cc: Andrew Victor <linux@maxim.org.za>, Nicolas Ferre <nicolas.ferre@atmel.com>, Haavard Skinnemoen <haavard.skinnemoen@atmel.com>, linux-ide@vger.kernel.org

Hello, I wrote:

>>>>> +            t9 = t2i - t1;
>>>>>         
>>>>    It  more sense to calculate such things *after* quantizing the 
>>>> timings with calc_mck_cycles()...
>>>>     
>>> Why?
>>>   
>>
>>   More precise result -- matching the clock being used.
>
>   However, I don't understand now why you need to stretch t9...

  Ah, I do again. t0 *should be equal* to t1 + t2 + t9 for the better 
speeds.

MBR, Sergei