linux-kernel - Re: SDIO card support in Linux

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Message-ID: <44FE5AAC.6030607@drzeus.cx>
Date:	Wed, 06 Sep 2006 07:20:44 +0200
From:	Pierre Ossman <drzeus-list@...eus.cx>
To:	madhu chikkature <crmadhu210@...il.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: SDIO card support in Linux

madhu chikkature wrote:
> Hi Pierre,
>
> Here is some piece of code that i wrote for SDIO. I use 2.6.10 kernel
> and hence i can not really take a diff between the latest kernel
> version. But this is not really a patch. So, You can just comment on
> my code. I might later on work on the latest kernel versions based on
> your comment.I see that there are more discussions happening. Please
> pont to me if you have some code already written.
>
> After your previous mail, i see that i can remove the support for CMD3
> seperately for SDIO and do it the SD way. But i am not sure how to
> maintain the list of SDIO cards seperately.Also some hardware as our
> omap does, can support multiple MMC slots, in such cases one slot can
> have SDIO and the other MMC. The core needs to cliam the cards from
> different lists. So you may see some not so correct parts in my code.
>

Your design is a bit lacking yes as it doesn't properly reuse the
structures in place. Have a look at the version I'm working on instead.

Rgds
Pierre



View attachment "sdio-init.patch" of type "text/x-patch" (24887 bytes)