To check that the patch has the desired effect I ran
glpsol -m /usr/share/doc/glpk-utils/examples/tsp.mod
with different U-Boot versions and noted down the solution time:
1.0 GHz - 5.2 s - current Focal U-Boot version
1.2 GHz - 4.3 s - revised Focal U-Boot version
1.5 GHz - 3.5 s - my board works fine at 1.5 GHz
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https://bugs.launchpad.net/bugs/1941622
Title:
[SRU] Bump unmatched CPU clock rate to 1.2 GHz
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