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arm64: dts: qcom: sm8550: add OPP table support to PCIe

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The PCIe bus interconnect path can be scaled depending on the
PCIe link established, add the OPP table with all the possible
link speeds and the associated power domain level.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250115-topic-sm8x50-upstream-dt-icc-update-v1-3-eaa8b10e2af7@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Neil Armstrong
2025-01-15 14:43:55 +01:00
committed by Bjorn Andersson
parent 48c84d96dc
commit 0acd169330
1 changed files with 89 additions and 0 deletions
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89
arch/arm64/boot/dts/qcom/sm8550.dtsi
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@@ -1897,8 +1897,49 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
phys = <&pcie0_phy>;
phy-names = "pciephy";
operating-points-v2 = <&pcie0_opp_table>;
status = "disabled";
pcie0_opp_table: opp-table {
compatible = "operating-points-v2";
/* GEN 1 x1 */
opp-2500000 {
opp-hz = /bits/ 64 <2500000>;
required-opps = <&rpmhpd_opp_low_svs>;
opp-peak-kBps = <250000 1>;
};
/* GEN 1 x2 and GEN 2 x1 */
opp-5000000 {
opp-hz = /bits/ 64 <5000000>;
required-opps = <&rpmhpd_opp_low_svs>;
opp-peak-kBps = <500000 1>;
};
/* GEN 2 x2 */
opp-10000000 {
opp-hz = /bits/ 64 <10000000>;
required-opps = <&rpmhpd_opp_low_svs>;
opp-peak-kBps = <1000000 1>;
};
/* GEN 3 x1 */
opp-8000000 {
opp-hz = /bits/ 64 <8000000>;
required-opps = <&rpmhpd_opp_nom>;
opp-peak-kBps = <984500 1>;
};
/* GEN 3 x2 */
opp-16000000 {
opp-hz = /bits/ 64 <16000000>;
required-opps = <&rpmhpd_opp_nom>;
opp-peak-kBps = <1969000 1>;
};
};
pcieport0: pcie@0 {
device_type = "pci";
reg = <0x0 0x0 0x0 0x0 0x0>;
@@ -2023,8 +2064,56 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
phys = <&pcie1_phy>;
phy-names = "pciephy";
operating-points-v2 = <&pcie1_opp_table>;
status = "disabled";
pcie1_opp_table: opp-table {
compatible = "operating-points-v2";
/* GEN 1 x1 */
opp-2500000 {
opp-hz = /bits/ 64 <2500000>;
required-opps = <&rpmhpd_opp_low_svs>;
opp-peak-kBps = <250000 1>;
};
/* GEN 1 x2 and GEN 2 x1 */
opp-5000000 {
opp-hz = /bits/ 64 <5000000>;
required-opps = <&rpmhpd_opp_low_svs>;
opp-peak-kBps = <500000 1>;
};
/* GEN 2 x2 */
opp-10000000 {
opp-hz = /bits/ 64 <10000000>;
required-opps = <&rpmhpd_opp_low_svs>;
opp-peak-kBps = <1000000 1>;
};
/* GEN 3 x1 */
opp-8000000 {
opp-hz = /bits/ 64 <8000000>;
required-opps = <&rpmhpd_opp_nom>;
opp-peak-kBps = <984500 1>;
};
/* GEN 3 x2 and GEN 4 x1 */
opp-16000000 {
opp-hz = /bits/ 64 <16000000>;
required-opps = <&rpmhpd_opp_nom>;
opp-peak-kBps = <1969000 1>;
};
/* GEN 4 x2 */
opp-32000000 {
opp-hz = /bits/ 64 <32000000>;
required-opps = <&rpmhpd_opp_nom>;
opp-peak-kBps = <3938000 1>;
};
};
pcie@0 {
device_type = "pci";
reg = <0x0 0x0 0x0 0x0 0x0>;