ARM: tegra: Add EMC OPP and ICC properties to Tegra114 EMC and ACTMON device-tree...

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@gmail.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

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 (file)
index 0000000..b40a1c2
--- /dev/null
+++ b/arch/arm/boot/dts/nvidia/tegra114-peripherals-opp.dtsi
@@ -0,0 +1,164 @@
+// 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>;
+               };
+
+               /*
+                * T40X can work with 1050mV for 528MHz but T40T which is
+                * in the same group as T40X requires 1100mV. If there will
+                * be enough data that T40T can work reliably with 1050mV
+                * for 528MHz then voltage for 528MHz opp can be lowered.
+                * T40S should remain with 1100mV for 528MHz opp.
+                */
+               opp-528000000-1100 {
+                       opp-microvolt = <1100000 1100000 1390000>;
+                       opp-hz = /bits/ 64 <528000000>;
+                       opp-supported-hw = <0x000F>;
+               };
+
+               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>;
+               };
+
+               opp-900000000-1200 {
+                       opp-microvolt = <1200000 1200000 1390000>;
+                       opp-hz = /bits/ 64 <900000000>;
+                       opp-supported-hw = <0x000E>;
+               };
+       };
+
+       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>;
+               };
+
+               opp-900000000 {
+                       opp-hz = /bits/ 64 <900000000>;
+                       opp-supported-hw = <0x000E>;
+                       opp-peak-kBps = <14400000>;
+               };
+       };
+};

diff --git a/arch/arm/boot/dts/nvidia/tegra114.dtsi b/arch/arm/boot/dts/nvidia/tegra114.dtsi
index 7e8f90d339359ae5917eaf20a8a61c01a57bda51..6c2b79b359385b7c7560f360046cc0b6b6b2159e 100644 (file)
--- a/arch/arm/boot/dts/nvidia/tegra114.dtsi
+++ b/arch/arm/boot/dts/nvidia/tegra114.dtsi
@@ -8,6 +8,8 @@
 #include <dt-bindings/soc/tegra-pmc.h>
 #include <dt-bindings/thermal/tegra114-soctherm.h>
 
+#include "tegra114-peripherals-opp.dtsi"
+
 / {
        compatible = "nvidia,tegra114";
        interrupt-parent = <&lic>;
@@ -323,6 +325,9 @@
                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";
                #cooling-cells = <2>;
        };
 
@@ -655,6 +660,7 @@
 
                #reset-cells = <1>;
                #iommu-cells = <1>;
+               #interconnect-cells = <1>;
        };
 
        emc: external-memory-controller@7001b000 {
@@ -665,6 +671,9 @@
                clock-names = "emc";
 
                nvidia,memory-controller = <&mc>;
+               operating-points-v2 = <&emc_icc_dvfs_opp_table>;
+
+               #interconnect-cells = <0>;
        };
 
        hda@70030000 {