linux-kernel - Re: [PATCH 1/3] at91_mci: Enable MMC_CAP_SDIO

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20080717125544.36f41947@mjolnir.drzeus.cx>
Date:	Thu, 17 Jul 2008 12:55:44 +0200
From:	Pierre Ossman <drzeus@...eus.cx>
To:	Nicolas Ferre <nicolas.ferre@...el.com>
Cc:	ARM Linux Mailing List <linux-arm-kernel@...ts.arm.linux.org.uk>,
	Andrew Victor <linux@...im.org.za>,
	Ville Syrjala <syrjala@....fi>,
	Linux Kernel list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/3] at91_mci: Enable MMC_CAP_SDIO_IRQ only when it
 actually works

On Thu, 17 Jul 2008 11:34:07 +0200
Nicolas Ferre <nicolas.ferre@...el.com> wrote:

> According to the datasheets AT91SAM9261 does not support
> SDIO interrupts, and AT91SAM9260/9263 have an erratum
> requiring 4bit mode while using slot B for the interrupt
> to work.
> 
> Signed-off-by: Nicolas Ferre <nicolas.ferre@...el.com>
> ---

Not all SDIO cards use 4-bit mode, so it looks to me like you have to
disable it completely (unless there's a third revision where it works
without any fine print?).

Rgds
-- 
     -- Pierre Ossman

  WARNING: This correspondence is being monitored by the
  Swedish government. Make sure your server uses encryption
  for SMTP traffic and consider using PGP for end-to-end
  encryption.

Download attachment "signature.asc" of type "application/pgp-signature" (198 bytes)