Disable write buffering on Toshiba ToPIC95
authorRyan Underwood <nemesis@icequake.net>
Mon, 26 Jan 2015 00:07:09 +0000 (16:07 -0800)
committerDominik Brodowski <linux@dominikbrodowski.net>
Sat, 13 Jun 2015 21:40:21 +0000 (23:40 +0200)
commit2fb22a8042fe96b4220843f79241c116d90922c4
tree31947c5e2c1545e53b3511ce0a68f32fa1c9a230
parentf2e6cf76751d479874216f989f6bef6da6e80119
Disable write buffering on Toshiba ToPIC95

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>
drivers/pcmcia/topic.h