From: Tom Rini <trini@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] mmc: omap: handle controller errors properly
Date: Mon, 19 Mar 2012 15:14:39 -0700 [thread overview]
Message-ID: <4F67AFCF.4040209@ti.com> (raw)
In-Reply-To: <1332195126-24719-1-git-send-email-notasas@gmail.com>
On 03/19/2012 03:12 PM, Grazvydas Ignotas wrote:
> According to OMAP3 TRM, when the controller reports certain errors,
> driver must perform a software reset. This is done by setting a bit
> in SYSCTL and waiting it to clear:
> - SRC on command timeout (CTO)
> - SRD on data errors (DTO, DCRC and DEB)
>
> This fixes a problem seen on OMAP3 pandora board with some cards
> that won't work with a message printed multiple times:
> timedout waiting on cmd inhibit to clear
>
> Code loosely based on Linux omap_hsmmc driver.
>
> Signed-off-by: Grazvydas Ignotas<notasas@gmail.com>
Most excellent! Pali, can you try this on N900 and see if that helps
out the problem you were having as well?
Andy, I'll give this a spin through the boards I've got here but I'd
like this to go, via your tree, into u-boot/master assuming all goes well.
--
Tom
next prev parent reply other threads:[~2012-03-19 22:14 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-19 22:12 [U-Boot] [PATCH] mmc: omap: handle controller errors properly Grazvydas Ignotas
2012-03-19 22:14 ` Tom Rini [this message]
2012-03-21 19:11 ` Pali Rohár
2012-03-21 19:57 ` Pali Rohár
2012-03-19 23:21 ` Tom Rini
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