| Message ID | cc2bae27776523f499d01655ef18fe463a3ae1ae.1670492384.git.geert+renesas@glider.be (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | renesas: r8a779g0: Add support for boost mode | expand |
diff --git a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi index 83d1666a2ea16de2..7a87a5dc1b6ad219 100644 --- a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi @@ -39,6 +39,12 @@ opp-1700000000 { clock-latency-ns = <500000>; opp-suspend; }; + opp-1800000000 { + opp-hz = /bits/ 64 <1800000000>; + opp-microvolt = <880000>; + clock-latency-ns = <500000>; + turbo-mode; + }; }; cpus {
Add an operating point for running the Cortex-A76 CPU cores on R-Car V4H at 1.8 GHz (High Performance mode). Based on a patch in the BSP by Tho Vu. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- Tested on the Renesas White-Hawk development board by using the CPUfreq userspace governor, enabling boost mode, writing the desired CPU clock rate to the CPUfreq policy's "scaling_setspeed" file in sysfs, verifying the clock rate of the Z0φ clock in debugfs, and running the dhrystones benchmark on the various CPU cores. $ echo 1 > /sys/devices/system/cpu/cpufreq/boost $ echo 1800000 > /sys/devices/system/cpu/cpufreq/policy0/scaling_setspeed --- arch/arm64/boot/dts/renesas/r8a779g0.dtsi | 6 ++++++ 1 file changed, 6 insertions(+)