[Bug 1941622] Re: [SRU] Bump unmatched CPU clock rate to 1.2 GHz

[Brian Murray]

$ dput u-boot_2021.01+dfsg-3ubuntu0\~20.04.4_source.changes 
Trying to upload package to ubuntu
Checking signature on .changes
gpg: /tmp/pkgs/focal/u-boot_2021.01+dfsg-3ubuntu0~20.04.4_source.changes: Valid signature from 1E918B66765B3E31
Checking signature on .dsc
gpg: /tmp/pkgs/focal/u-boot_2021.01+dfsg-3ubuntu0~20.04.4.dsc: Valid signature from 1E918B66765B3E31
Uploading to ubuntu (via ftp to upload.ubuntu.com):
  Uploading u-boot_2021.01+dfsg-3ubuntu0~20.04.4.dsc: done.
  Uploading u-boot_2021.01+dfsg-3ubuntu0~20.04.4.debian.tar.xz: done.  
  Uploading u-boot_2021.01+dfsg-3ubuntu0~20.04.4_source.buildinfo: done.
  Uploading u-boot_2021.01+dfsg-3ubuntu0~20.04.4_source.changes: done.
Successfully uploaded packages.

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https://bugs.launchpad.net/bugs/1941622

Title:
  [SRU] Bump unmatched CPU clock rate to 1.2 GHz

Status in u-boot package in Ubuntu:
  Fix Released
Status in u-boot source package in Focal:
  In Progress

Bug description:
  [Impact]

  Bump SiFive Unmatched CPU clock rate from 1.0 GHz to 1.2 GHz as used
  by upstream U-Boot.

  This is the maximum frequency that according to SiFive is stable on
  all boards.

  [Test Plan]

   * System with these patches boots, operates normally without
  overheating. CPU clock speed is increased form 1.0 GHz to 1.2 GHz.

  [Where problems could occur]

   * Overheating, instability, panics. (Should not occur according to
  the board vendor)

  [Other Info]
   
   * wgrant & multiple SiFive forum users report even 1.5 GHz to be stable

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