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List:       linux-arm-kernel
Subject:    Re: q:cf/pcmcia
From:       "Jean-Philippe Francois" <jp.francois () cynove ! com>
Date:       2004-07-01 11:16:53
Message-ID: 200407011316530593.00F3A402 () smtp ! wanadoo ! fr
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On 01/07/2004 at 12:06 Matthias Welwarsky wrote:

>Look,
>
>it's no use speculating about a linux problem here unless you fix your 
>hardware to generate the necessary interrupts. The IDE driver will not
>work 
>without. The probing of the card (IDE IDENTIFY command) will succeed
>anyway 
>since it's done polling. But after that you explicitely need interrupts.
>
>regards,
>	matthias
>
>

Perhaps it is not meant to be that way, but if no interrupt occurs,
the linux ide layer polls the status register. And it works, at least with CF card.
If you tweak the ide layer to drastically reduce the timeout after each command,
then you have a polling mode IDE interface.

Jean-Philippe Francois



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