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[Launchpad Bug Tracker <1359501@xxxxxxxxxxxxxxxxxx>]

** Branch linked: lp:ubuntu/precise-proposed/linux-lts-trusty

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https://bugs.launchpad.net/bugs/1359501

Title:
  ahci_xgene: Skip the PHY and clock initialization if already
  configured by the firmware

Status in “linux” package in Ubuntu:
  In Progress
Status in “linux” source package in Trusty:
  Fix Committed
Status in “linux” source package in Utopic:
  In Progress

Bug description:
  [IMPACT]
  Some disk types will never be seen after boot, while others can disappear after a reboot.

  This patch implements the feature to skip the PHY and clock
  initialization if it is already configured by the firmware.

  [TEST CASE]
  Repeatedly reboot the system.

  [Regression Potential]
  Only affects the the xgene ahci driver.

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