Disable write buffering on Toshiba ToPIC95

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[ Upstream commit 2fb22a8042 ]

Disable write buffering on the Toshiba ToPIC95 if it is enabled by
somebody (it is not supposed to be a power-on default according to
the datasheet). On the ToPIC95, practically no 32-bit Cardbus card
will work under heavy load without locking up the whole system if
this is left enabled. I tried about a dozen. It does not affect
16-bit cards. This is similar to the O2 bugs in early controller
revisions it seems.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=55961
Cc: <stable@vger.kernel.org>
Signed-off-by: Ryan C. Underwood <nemesis@icequake.net>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

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Ryan Underwood 2015-01-25 16:07:09 -08:00 • committed by Sasha Levin

parent 1f037aa9c0

commit d178b2654d

1 changed files with 16 additions and 0 deletions

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drivers/pcmcia/topic.h

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