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| author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2010-10-17 14:09:12 +0200 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2010-10-17 14:09:12 +0200 |
| commit | aa0170fff3c26bf2b42159af2dd9cf86444c292a (patch) | |
| tree | 0a64674f2fa51883c66e96c743dd4c4e86d98a49 /drivers/firewire/ohci.h | |
| parent | cd07202cc8262e1669edff0d97715f3dd9260917 (diff) | |
| download | linux-aa0170fff3c26bf2b42159af2dd9cf86444c292a.tar.bz2 | |
firewire: ohci: fix TI TSB82AA2 regression since 2.6.35
Revert commit 54672386ccf36ffa21d1de8e75624af83f9b0eeb
"firewire: ohci: fix up configuration of TI chips".
It caused massive slow-down and data corruption with a TSB82AA2 based
StarTech EC1394B2 ExpressCard and FireWire 800 harddisks.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/657081
http://thread.gmane.org/gmane.linux.kernel.firewire.user/4013
The fact that some card EEPROMs do not program these enhancements may be
related to TSB81BA3 phy chip errata, if not to bugs of TSB82AA2 itself.
We could re-add these configuration steps, but only conditional on a
whitelist of cards on which these enhancements bring a proven positive
effect.
Reported-and-tested-by: Eric Shattow <lucent@gmail.com>
Cc: Clemens Ladisch <clemens@ladisch.de>
Cc: <stable@kernel.org> 2.6.35
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/firewire/ohci.h')
| -rw-r--r-- | drivers/firewire/ohci.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/firewire/ohci.h b/drivers/firewire/ohci.h index 0e6c5a466908..ef5e7336da68 100644 --- a/drivers/firewire/ohci.h +++ b/drivers/firewire/ohci.h @@ -155,12 +155,4 @@ #define OHCI1394_phy_tcode 0xe -/* TI extensions */ - -#define PCI_CFG_TI_LinkEnh 0xf4 -#define TI_LinkEnh_enab_accel 0x00000002 -#define TI_LinkEnh_enab_unfair 0x00000080 -#define TI_LinkEnh_atx_thresh_mask 0x00003000 -#define TI_LinkEnh_atx_thresh_1_7K 0x00001000 - #endif /* _FIREWIRE_OHCI_H */ |