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| author | Neil Armstrong <narmstrong@baylibre.com> | 2019-07-29 16:26:20 +0300 |
|---|---|---|
| committer | Kevin Hilman <khilman@baylibre.com> | 2019-08-09 21:07:03 +0300 |
| commit | e9bc0765cc1274b7221360f462a3a993b41cac92 (patch) | |
| tree | 4aefeb8b4bd7b44ba196ec2cd8de0094171922f3 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | b190056fa9eecc016b6a6e41f89a04da14b78bf7 (diff) | |
| download | linux-e9bc0765cc1274b7221360f462a3a993b41cac92.tar.xz | |
arm64: dts: meson-g12a: enable DVFS on G12A boards
Enable DVFS for the U200, SEI520 and X96-Max Amlogic G12A based board
by setting the clock, OPP and supply for each CPU cores.
The CPU cluster power supply can achieve 0.73V to 1.01V using a PWM
output clocked at 800KHz with an inverse duty-cycle.
DVFS has been tested by running the arm64 cpuburn at [1] and cycling
between all the possible cpufreq translations and checking the final
frequency using the clock-measurer, script at [2].
[1] https://github.com/ssvb/cpuburn-arm/blob/master/cpuburn-a53.S
[2] https://gist.github.com/superna9999/d4de964dbc0f84b7d527e1df2ddea25f
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions