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Message-ID: <20250225143501.68966-10-clamor95@gmail.com>
Date: Tue, 25 Feb 2025 16:35:01 +0200
From: Svyatoslav Ryhel <clamor95@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
Rob Herring <robh@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
Peter De Schrijver <pdeschrijver@...dia.com>,
Prashant Gaikwad <pgaikwad@...dia.com>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Svyatoslav Ryhel <clamor95@...il.com>,
Jonathan Cameron <Jonathan.Cameron@...wei.com>,
Georgi Djakov <djakov@...nel.org>,
Dmitry Osipenko <digetx@...il.com>
Cc: linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org,
linux-tegra@...r.kernel.org,
linux-clk@...r.kernel.org
Subject: [PATCH v1 9/9] ARM: tegra: Add EMC OPP and ICC properties to Tegra114 EMC and ACTMON device-tree nodes
Add EMC OPP tables and interconnect paths that will be used for
dynamic memory bandwidth scaling based on memory utilization statistics.
Signed-off-by: Svyatoslav Ryhel <clamor95@...il.com>
---
.../dts/nvidia/tegra114-peripherals-opp.dtsi | 151 ++++++++++++++++++
arch/arm/boot/dts/nvidia/tegra114.dtsi | 9 ++
2 files changed, 160 insertions(+)
create mode 100644 arch/arm/boot/dts/nvidia/tegra114-peripherals-opp.dtsi
diff --git a/arch/arm/boot/dts/nvidia/tegra114-peripherals-opp.dtsi b/arch/arm/boot/dts/nvidia/tegra114-peripherals-opp.dtsi
new file mode 100644
index 000000000000..1a0e68f22039
--- /dev/null
+++ b/arch/arm/boot/dts/nvidia/tegra114-peripherals-opp.dtsi
@@ -0,0 +1,151 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/ {
+ emc_icc_dvfs_opp_table: opp-table-emc {
+ compatible = "operating-points-v2";
+
+ opp-12750000-900 {
+ opp-microvolt = <900000 900000 1390000>;
+ opp-hz = /bits/ 64 <12750000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-20400000-900 {
+ opp-microvolt = <900000 900000 1390000>;
+ opp-hz = /bits/ 64 <20400000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-40800000-900 {
+ opp-microvolt = <900000 900000 1390000>;
+ opp-hz = /bits/ 64 <40800000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-68000000-900 {
+ opp-microvolt = <900000 900000 1390000>;
+ opp-hz = /bits/ 64 <68000000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-102000000-900 {
+ opp-microvolt = <900000 900000 1390000>;
+ opp-hz = /bits/ 64 <102000000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-204000000-900 {
+ opp-microvolt = <900000 900000 1390000>;
+ opp-hz = /bits/ 64 <204000000>;
+ opp-supported-hw = <0x000F>;
+ opp-suspend;
+ };
+
+ opp-312000000-1000 {
+ opp-microvolt = <1000000 1000000 1390000>;
+ opp-hz = /bits/ 64 <312000000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-408000000-1000 {
+ opp-microvolt = <1000000 1000000 1390000>;
+ opp-hz = /bits/ 64 <408000000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-528000000-1050 {
+ opp-microvolt = <1050000 1050000 1390000>;
+ opp-hz = /bits/ 64 <528000000>;
+ opp-supported-hw = <0x000E>;
+ };
+
+ opp-528000000-1100 {
+ opp-microvolt = <1100000 1100000 1390000>;
+ opp-hz = /bits/ 64 <528000000>;
+ opp-supported-hw = <0x0001>;
+ };
+
+ opp-624000000-1100 {
+ opp-microvolt = <1100000 1100000 1390000>;
+ opp-hz = /bits/ 64 <624000000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-792000000-1100 {
+ opp-microvolt = <1100000 1100000 1390000>;
+ opp-hz = /bits/ 64 <792000000>;
+ opp-supported-hw = <0x000F>;
+ };
+ };
+
+ emc_bw_dfs_opp_table: opp-table-actmon {
+ compatible = "operating-points-v2";
+
+ opp-12750000 {
+ opp-hz = /bits/ 64 <12750000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <204000>;
+ };
+
+ opp-20400000 {
+ opp-hz = /bits/ 64 <20400000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <326400>;
+ };
+
+ opp-40800000 {
+ opp-hz = /bits/ 64 <40800000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <652800>;
+ };
+
+ opp-68000000 {
+ opp-hz = /bits/ 64 <68000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <1088000>;
+ };
+
+ opp-102000000 {
+ opp-hz = /bits/ 64 <102000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <1632000>;
+ };
+
+ opp-204000000 {
+ opp-hz = /bits/ 64 <204000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <3264000>;
+ opp-suspend;
+ };
+
+ opp-312000000 {
+ opp-hz = /bits/ 64 <312000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <4992000>;
+ };
+
+ opp-408000000 {
+ opp-hz = /bits/ 64 <408000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <6528000>;
+ };
+
+ opp-528000000 {
+ opp-hz = /bits/ 64 <528000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <8448000>;
+ };
+
+ opp-624000000 {
+ opp-hz = /bits/ 64 <624000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <9984000>;
+ };
+
+ opp-792000000 {
+ opp-hz = /bits/ 64 <792000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <12672000>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/nvidia/tegra114.dtsi b/arch/arm/boot/dts/nvidia/tegra114.dtsi
index caf6024d6413..341ec0962460 100644
--- a/arch/arm/boot/dts/nvidia/tegra114.dtsi
+++ b/arch/arm/boot/dts/nvidia/tegra114.dtsi
@@ -6,6 +6,8 @@
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/soc/tegra-pmc.h>
+#include "tegra114-peripherals-opp.dtsi"
+
/ {
compatible = "nvidia,tegra114";
interrupt-parent = <&lic>;
@@ -257,6 +259,9 @@ actmon: actmon@...0c800 {
clock-names = "actmon", "emc";
resets = <&tegra_car TEGRA114_CLK_ACTMON>;
reset-names = "actmon";
+ operating-points-v2 = <&emc_bw_dfs_opp_table>;
+ interconnects = <&mc TEGRA114_MC_MPCORER &emc>;
+ interconnect-names = "cpu-read";
};
gpio: gpio@...0d000 {
@@ -588,6 +593,7 @@ mc: memory-controller@...19000 {
#reset-cells = <1>;
#iommu-cells = <1>;
+ #interconnect-cells = <1>;
};
emc: external-memory-controller@...1b000 {
@@ -598,6 +604,9 @@ emc: external-memory-controller@...1b000 {
clock-names = "emc";
nvidia,memory-controller = <&mc>;
+ operating-points-v2 = <&emc_icc_dvfs_opp_table>;
+
+ #interconnect-cells = <0>;
};
ahub@...80000 {
--
2.43.0
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