[Bug 1941622] Re: [SRU] Bump unmatched CPU clock rate to 1.2 GHz
Brian Murray
1941622 at bugs.launchpad.net
Tue Dec 7 16:39:17 UTC 2021
The additional information in comment #11 (the need to reboot and how to
check the speed of the device) should be added to the test plan in the
bug description so that the bug is easier for anyone to follow. I'll go
ahead and accept it anyway, but please update the bug description.
** Changed in: u-boot (Ubuntu Focal)
Status: Incomplete => Fix Committed
** Tags added: verification-needed verification-needed-focal
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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:
Fix Committed
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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