From 25d30a45afd8f93039e6c40775807c230e179fb0 Mon Sep 17 00:00:00 2001 From: Aaron Kling Date: Sat, 23 Aug 2025 02:05:07 -0500 Subject: [PATCH] arm64: tegra: Add OPP tables on Tegra210 This adds OPP tables for actmon and emc, enabling dynamic frequency scaling for ram. Signed-off-by: Aaron Kling --- .../dts/nvidia/tegra210-peripherals-opp.dtsi | 135 ++++++++++++++++++ arch/arm64/boot/dts/nvidia/tegra210.dtsi | 7 + 2 files changed, 142 insertions(+) create mode 100644 arch/arm64/boot/dts/nvidia/tegra210-peripherals-opp.dtsi diff --git a/arch/arm64/boot/dts/nvidia/tegra210-peripherals-opp.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-peripherals-opp.dtsi new file mode 100644 index 000000000000..bf2527d73793 --- /dev/null +++ b/arch/arm64/boot/dts/nvidia/tegra210-peripherals-opp.dtsi @@ -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>; + }; + }; +}; diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi index 4523548f5b60..7e8a3da9b494 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi @@ -9,6 +9,8 @@ #include #include +#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 = ; nvidia,memory-controller = <&mc>; + operating-points-v2 = <&emc_icc_dvfs_opp_table>; + #interconnect-cells = <0>; #cooling-cells = <2>; };