[PATCH] ARM: RealView SD/MMC Card detection and write-protect using GPIOLIB

[colin.tuckley@arm.com (Colin Tuckley)]

> -----Original Message-----
> From: Russell King - ARM Linux [mailto:linux at arm.linux.org.uk] 

> No; if it's broken then it's because something's wrong, and I 
> think there
> was a mail about that recently.  I don't particularly like 
> forcing options
> on when there's better solutions to the problem (like fixing 
> the cause of
> the actual breakage.)

Actually, the patch description is slightly wrong/misleading.

The original patch did break the card detection on some boards. Also the
configuration options mentioned do need setting for things to work properly.
I think it's that the PL061 driver didn't get included in the kernel by the
original patch. Maybe it should be added to the realview_default config
files?

The problem here I think is that someone implemented gpiolib for sdcard
detection on mach-realview without doing any testing. When I started working
on a kernel with gpiolib I found the detection broken. After a lot of
experimentation and discussion with Catalin we decided that the patch I
submitted was the best way forward.

If it's not acceptable please suggest something that is.

Colin

-- 
Colin Tuckley - ARM Ltd.
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