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skiboot-5.2.2 was released on Thursday May 5th, 2016.
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skiboot-5.2.2 is the third stable release of skiboot 5.2, the new stable
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release of skiboot, which will take over from the 5.1.x series which was
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first released August 17th, 2015.
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Skiboot 5.2.2 replaces skiboot-5.2.1 as the current stable version, which was
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released on April 27th, 2016. Over skiboot-5.2.1, skiboot 5.2.2 contains
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one bug fix targeted at P8NVL systems, notably the Garrison platform.
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skiboot-5.2.2 contains all bug fixes as of skiboot-5.1.16.
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This is the second release that will follow the (now documented) Skiboot
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stable rules - see doc/stable-skiboot-rules.txt.
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Over skiboot-5.2.1, the following fixes are included:
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- PHB3: Fix corruption of pref window register
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On P8+ Garrison platform, the root port's pref window register might
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be not writable and we have to emulate the window because of hardware
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defect. In order to detect that, we read the register content, write
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inversed value and read the register content again. The register is
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regarded as read-only if the values from the two continuous read are
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same. However, the original register content isn't written back and
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it causes corruption on pref window register if it's writable.
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This fixes the above issue by writing the original content back to
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the register at the end.