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Message #70640
[Bug 1335636] Re: x-gene sata phy tuning varies across platforms
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
trusty' to 'verification-done-trusty'.
If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!
** Tags added: verification-needed-trusty
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https://bugs.launchpad.net/bugs/1335636
Title:
x-gene sata phy tuning varies across platforms
Status in “linux” package in Ubuntu:
Fix Released
Status in “linux” source package in Trusty:
Fix Committed
Status in “linux” source package in Utopic:
Fix Released
Bug description:
The xgene-ahci driver sets sets the sata phy configuration, but this
configuration can vary across platforms. Today the values we are using
are optimal for the mustang development board, but suboptimal for
other platforms. In general the recommendation is to move this into
platform specific config in firmware - either by having firmware do
the phy config, or by passing settings to the driver via device-tree
config. But, that's a long term solution - in the short term, we can
special case the Mustang board and use better default settings for
other boards.
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References