[haiku-bugs] Re: [Haiku] #5551: ATI/AMD SB700/SB800/SBx00 USB Interrupt Issues
- From: "mmlr" <trac@xxxxxxxxxxxx>
- Date: Mon, 25 Apr 2011 21:51:44 -0000
#5551: ATI/AMD SB700/SB800/SBx00 USB Interrupt Issues
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Reporter: MrSunshine | Owner: mmlr
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: | Version: R1/Development
Drivers/USB | Keywords: ati_via_dropped_interrupts
Resolution: | Blocking: 6026, 6191, 6222, 6223, 6527, 7477
Blocked By: | Platform: All
Has a Patch: 1 |
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Comment (by mmlr):
Replying to [comment:12 stargatefan]:
> http://www.coreboot.org/Datasheets#AMD_SB700.2FSB710.2FSB750
> Link to documentation on the AMD southbridges from core boot. will
report back tonight on the patch.
Thanks, the SB700 errata and the SB600 documentation describe this bit as
(Advanced) Periodic List Cache. According to the errata it is broken and
the Linux workaround (the same as the NetBSD one this patch is based on)
is the way to go to work around it. Updated the patch with the additional
info to use descriptive vendor, device, register and value names.
--
Ticket URL: <http://dev.haiku-os.org/ticket/5551#comment:15>
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