arm64: tegra: Add OPP tables on Tegra210

This adds OPP tables for ACTMON and EMC, enabling dynamic frequency
scaling for system memory.

Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

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 (file)
index 0000000..bf2527d
--- /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 c196ceed935035fd4acd966cd33aa3d1bea5f11e..44af2760a1724b010b7a7a30f8234f93a361692b 100644 (file)
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -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>;
@@ -514,6 +516,9 @@
                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>;
        };
 
@@ -1022,6 +1027,8 @@
                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>;
        };