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From: Chris Ball <chris@printf.net>
To: Eli Billauer <eli.billauer@gmail.com>
Cc: michal.simek@xilinx.com, linux-mmc@vger.kernel.org
Subject: Re: [PATCH] mmc: sdhci: add quirk for broken write protect detection
Date: Mon, 24 Feb 2014 00:12:45 +0000	[thread overview]
Message-ID: <86r46ts70i.fsf@void.printf.net> (raw)
In-Reply-To: <1393198345-8365-1-git-send-email-eli.billauer@gmail.com> (Eli Billauer's message of "Mon, 24 Feb 2014 01:32:25 +0200")

Hi Eli,

On Sun, Feb 23 2014, Eli Billauer wrote:
> The write protection signal is absent on a board based upon Xilinx' Zynq
> processor ("ZyBo"). This leads the kernel to think that the MicroSD card is
> write protected, and causes a kernel panic during boot, as root fails to
> mount RW.
>
> This patch adds a quirk and an optional OF property, sdhci,wp-broken to
> work around this issue.

Just to confirm your motivation for the patch:  wp-inverted would solve
this problem for you, but you'd rather add a new property that more
accurately describes the hardware?

(We'd probably use broken-wp, for symmetry with the existing broken-cd.)

Thanks,

- Chris.
-- 
Chris Ball   <chris@printf.net>   <http://printf.net/>

  reply	other threads:[~2014-02-24  0:12 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-23 23:32 [PATCH] mmc: sdhci: add quirk for broken write protect detection Eli Billauer
2014-02-24  0:12 ` Chris Ball [this message]
2014-02-24  0:54   ` Eli Billauer
2014-11-27 14:08 ` Raul

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