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arm64: tegra: Add OPP tables on Tegra210

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This adds OPP tables for actmon and emc, enabling dynamic frequency
scaling for ram.

Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
This commit is contained in:
Aaron Kling
2025-08-23 02:05:07 -05:00
committed by Thomas Makin
parent 9401bac24d
commit 25d30a45af
2 changed files with 142 additions and 0 deletions
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135
arch/arm64/boot/dts/nvidia/tegra210-peripherals-opp.dtsi Normal file
View File

@@ -0,0 +1,135 @@
// SPDX-License-Identifier: GPL-2.0
/ {
/* EMC DVFS OPP table */
emc_icc_dvfs_opp_table: opp-table-dvfs0 {
compatible = "operating-points-v2";
opp-40800000-800 {
opp-microvolt = <800000 800000 1150000>;
opp-hz = /bits/ 64 <40800000>;
opp-supported-hw = <0x0003>;
};
opp-68000000-800 {
opp-microvolt = <800000 800000 1150000>;
opp-hz = /bits/ 64 <68000000>;
opp-supported-hw = <0x0003>;
};
opp-102000000-800 {
opp-microvolt = <800000 800000 1150000>;
opp-hz = /bits/ 64 <102000000>;
opp-supported-hw = <0x0003>;
};
opp-204000000-800 {
opp-microvolt = <800000 800000 1150000>;
opp-hz = /bits/ 64 <204000000>;
opp-supported-hw = <0x0007>;
opp-suspend;
};
opp-408000000-812 {
opp-microvolt = <812000 812000 1150000>;
opp-hz = /bits/ 64 <408000000>;
opp-supported-hw = <0x0003>;
};
opp-665600000-825 {
opp-microvolt = <825000 825000 1150000>;
opp-hz = /bits/ 64 <665600000>;
opp-supported-hw = <0x0003>;
};
opp-800000000-825 {
opp-microvolt = <825000 825000 1150000>;
opp-hz = /bits/ 64 <800000000>;
opp-supported-hw = <0x0003>;
};
opp-1065600000-837 {
opp-microvolt = <837000 837000 1150000>;
opp-hz = /bits/ 64 <1065600000>;
opp-supported-hw = <0x0003>;
};
opp-1331200000-850 {
opp-microvolt = <850000 850000 1150000>;
opp-hz = /bits/ 64 <1331200000>;
opp-supported-hw = <0x0003>;
};
opp-1600000000-887 {
opp-microvolt = <887000 887000 1150000>;
opp-hz = /bits/ 64 <1600000000>;
opp-supported-hw = <0x0007>;
};
};
/* EMC bandwidth OPP table */
emc_bw_dfs_opp_table: opp-table-dvfs1 {
compatible = "operating-points-v2";
opp-40800000 {
opp-hz = /bits/ 64 <40800000>;
opp-supported-hw = <0x0003>;
opp-peak-kBps = <652800>;
};
opp-68000000 {
opp-hz = /bits/ 64 <68000000>;
opp-supported-hw = <0x0003>;
opp-peak-kBps = <1088000>;
};
opp-102000000 {
opp-hz = /bits/ 64 <102000000>;
opp-supported-hw = <0x0003>;
opp-peak-kBps = <1632000>;
};
opp-204000000 {
opp-hz = /bits/ 64 <204000000>;
opp-supported-hw = <0x0007>;
opp-peak-kBps = <3264000>;
opp-suspend;
};
opp-408000000 {
opp-hz = /bits/ 64 <408000000>;
opp-supported-hw = <0x0003>;
opp-peak-kBps = <6528000>;
};
opp-665600000 {
opp-hz = /bits/ 64 <665600000>;
opp-supported-hw = <0x0003>;
opp-peak-kBps = <10649600>;
};
opp-800000000 {
opp-hz = /bits/ 64 <800000000>;
opp-supported-hw = <0x001F>;
opp-peak-kBps = <12800000>;
};
opp-1065600000 {
opp-hz = /bits/ 64 <1065600000>;
opp-supported-hw = <0x0003>;
opp-peak-kBps = <17049600>;
};
opp-1331200000 {
opp-hz = /bits/ 64 <1331200000>;
opp-supported-hw = <0x0003>;
opp-peak-kBps = <21299200>;
};
opp-1600000000 {
opp-hz = /bits/ 64 <1600000000>;
opp-supported-hw = <0x0007>;
opp-peak-kBps = <25600000>;
};
};
};

7
arch/arm64/boot/dts/nvidia/tegra210.dtsi
View File

@@ -9,6 +9,8 @@
#include <dt-bindings/thermal/tegra124-soctherm.h>
#include <dt-bindings/soc/tegra-pmc.h>
#include "tegra210-peripherals-opp.dtsi"
/ {
compatible = "nvidia,tegra210";
interrupt-parent = <&lic>;
@@ -534,6 +536,9 @@
clock-names = "actmon", "emc";
resets = <&tegra_car 119>;
reset-names = "actmon";
operating-points-v2 = <&emc_bw_dfs_opp_table>;
interconnects = <&mc TEGRA210_MC_MPCORER &emc>;
interconnect-names = "cpu-read";
#cooling-cells = <2>;
};
@@ -1063,6 +1068,8 @@
clock-names = "emc";
interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
nvidia,memory-controller = <&mc>;
operating-points-v2 = <&emc_icc_dvfs_opp_table>;
#interconnect-cells = <0>;
#cooling-cells = <2>;
};