Re: [PATCH 0/4] sdhci-of: Some fixes for high-speed and 4-bit SDcards

From: Anton Vorontsov
Date: Fri Aug 07 2009 - 14:41:46 EST


On Fri, Aug 07, 2009 at 08:39:40PM +0400, Anton Vorontsov wrote:
> Hi all,
>
> Finally I've got a bunch of SD cards to test eSDHC in various ways,
> and more importantly now I have a lot of SDHS cards. ;-)
>
> So, here are few fixes that make eSDHC work flawlessly on MPC83xx
> SOCs with all SD and MMC cards that I have.
>
> On MPC85xx (namely MPC8536 and MPC8569) SOCs there is one issue:
> the cards can be detected and read just fine, but writing doesn't
> work (no interrupts received). I'm currently investigating this.

Solved. It appears that eSDHC on MPC85xx has a normal write-protect
reporting. And eSDHC actually checks the WP pin, thus doesn't let
anybody to do any writes... I'll make some additional patches and
will send v2 soon.

--
Anton Vorontsov
email: cbouatmailru@xxxxxxxxx
irc://irc.freenode.net/bd2
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