Register map documentation for the SPI (Serial Peripheral Interface) in recent Intels begins on page 5626
https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/atom-z8000 -datasheet-vol-2.pdf HSFSTS (Hardware Sequencer Status) + HSFCTL (Hardware Sequencer Control) are covered on the following pages. The 'intel-spi' driver accesses both of these together, treating them as a single 32-bit register (HSFSTS_CTL). --- PS. For those watching this bug, and wondering about what whatelse is going on in the background. Yes there is, eg. per #ubuntu-devel yesterday, today should be a visit to hardware manufacture (ODM), to try out some suggestions received via Intel: https://irclogs.ubuntu.com/2017/12/20/%23ubuntu-devel.html#t16:38 -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/1734147 Title: Ubuntu 17.10 corrupting BIOS - many LENOVO laptops models To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1734147/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs