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arm64: dts: qcom: ipq6018: use CPUFreq NVMEM

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IPQ6018 comes in multiple SKU-s and some of them dont support all of the
OPP-s that are current set, so lets utilize CPUFreq NVMEM to allow only
supported OPP-s based on the SoC dynamically.

As an example, IPQ6018 is generaly rated at 1.8GHz but some silicon only
goes up to 1.5GHz and is marked as such via an eFuse.

Signed-off-by: Robert Marko <robimarko@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20231021120048.231239-1-robimarko@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Robert Marko
2023-10-21 14:00:07 +02:00
committed by Bjorn Andersson
parent cff9a76f30
commit 83afcf14ed
1 changed files with 13 additions and 1 deletions
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14
arch/arm64/boot/dts/qcom/ipq6018.dtsi
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@@ -96,42 +96,49 @@ scm {
};
cpu_opp_table: opp-table-cpu {
compatible = "operating-points-v2";
compatible = "operating-points-v2-kryo-cpu";
nvmem-cells = <&cpu_speed_bin>;
opp-shared;
opp-864000000 {
opp-hz = /bits/ 64 <864000000>;
opp-microvolt = <725000>;
opp-supported-hw = <0xf>;
clock-latency-ns = <200000>;
};
opp-1056000000 {
opp-hz = /bits/ 64 <1056000000>;
opp-microvolt = <787500>;
opp-supported-hw = <0xf>;
clock-latency-ns = <200000>;
};
opp-1320000000 {
opp-hz = /bits/ 64 <1320000000>;
opp-microvolt = <862500>;
opp-supported-hw = <0x3>;
clock-latency-ns = <200000>;
};
opp-1440000000 {
opp-hz = /bits/ 64 <1440000000>;
opp-microvolt = <925000>;
opp-supported-hw = <0x3>;
clock-latency-ns = <200000>;
};
opp-1608000000 {
opp-hz = /bits/ 64 <1608000000>;
opp-microvolt = <987500>;
opp-supported-hw = <0x1>;
clock-latency-ns = <200000>;
};
opp-1800000000 {
opp-hz = /bits/ 64 <1800000000>;
opp-microvolt = <1062500>;
opp-supported-hw = <0x1>;
clock-latency-ns = <200000>;
};
};
@@ -309,6 +316,11 @@ qfprom: efuse@a4000 {
reg = <0x0 0x000a4000 0x0 0x2000>;
#address-cells = <1>;
#size-cells = <1>;
cpu_speed_bin: cpu-speed-bin@135 {
reg = <0x135 0x1>;
bits = <7 1>;
};
};
prng: qrng@e3000 {