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Date: Thu, 25 Apr 2019 16:26:40 +0800
From: Yuantian Tang <andy.tang@....com>
To: shawnguo@...nel.org
Cc: leoyang.li@....com, robh+dt@...nel.org, mark.rutland@....com,
linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
daniel.lezcano@...aro.org, rui.zhang@...el.com,
edubezval@...il.com, Yuantian Tang <andy.tang@....com>
Subject: [PATCH] arm64: dts: ls1028a: Add Thermal Monitor Unit node
The Thermal Monitoring Unit (TMU) monitors and reports the
temperature from 2 remote temperature measurement sites
located on ls1028a chip.
Add TMU dts node to enable this feature.
Signed-off-by: Yuantian Tang <andy.tang@....com>
---
arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 114 ++++++++++++++++++++++++
1 files changed, 114 insertions(+), 0 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
index b045812..a25f5fc 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
@@ -29,6 +29,7 @@
clocks = <&clockgen 1 0>;
next-level-cache = <&l2>;
cpu-idle-states = <&CPU_PH20>;
+ #cooling-cells = <2>;
};
cpu1: cpu@1 {
@@ -39,6 +40,7 @@
clocks = <&clockgen 1 0>;
next-level-cache = <&l2>;
cpu-idle-states = <&CPU_PH20>;
+ #cooling-cells = <2>;
};
l2: l2-cache {
@@ -398,6 +400,118 @@
status = "disabled";
};
+ tmu: tmu@...0000 {
+ compatible = "fsl,qoriq-tmu";
+ reg = <0x0 0x1f80000 0x0 0x10000>;
+ interrupts = <0 23 0x4>;
+ fsl,tmu-range = <0xb0000 0xa0026 0x80048 0x70061>;
+ fsl,tmu-calibration = <0x00000000 0x00000024
+ 0x00000001 0x0000002b
+ 0x00000002 0x00000031
+ 0x00000003 0x00000038
+ 0x00000004 0x0000003f
+ 0x00000005 0x00000045
+ 0x00000006 0x0000004c
+ 0x00000007 0x00000053
+ 0x00000008 0x00000059
+ 0x00000009 0x00000060
+ 0x0000000a 0x00000066
+ 0x0000000b 0x0000006d
+
+ 0x00010000 0x0000001c
+ 0x00010001 0x00000024
+ 0x00010002 0x0000002c
+ 0x00010003 0x00000035
+ 0x00010004 0x0000003d
+ 0x00010005 0x00000045
+ 0x00010006 0x0000004d
+ 0x00010007 0x00000045
+ 0x00010008 0x0000005e
+ 0x00010009 0x00000066
+ 0x0001000a 0x0000006e
+
+ 0x00020000 0x00000018
+ 0x00020001 0x00000022
+ 0x00020002 0x0000002d
+ 0x00020003 0x00000038
+ 0x00020004 0x00000043
+ 0x00020005 0x0000004d
+ 0x00020006 0x00000058
+ 0x00020007 0x00000063
+ 0x00020008 0x0000006e
+
+ 0x00030000 0x00000010
+ 0x00030001 0x0000001c
+ 0x00030002 0x00000029
+ 0x00030003 0x00000036
+ 0x00030004 0x00000042
+ 0x00030005 0x0000004f
+ 0x00030006 0x0000005b
+ 0x00030007 0x00000068>;
+ little-endian;
+ #thermal-sensor-cells = <1>;
+ };
+
+ thermal-zones {
+ core-cluster {
+ polling-delay-passive = <1000>;
+ polling-delay = <5000>;
+ thermal-sensors = <&tmu 0>;
+
+ trips {
+ core_cluster_alert: core-cluster-alert {
+ temperature = <85000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ core_cluster_crit: core-cluster-crit {
+ temperature = <95000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&core_cluster_alert>;
+ cooling-device =
+ <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+
+ ddr-controller {
+ polling-delay-passive = <1000>;
+ polling-delay = <5000>;
+ thermal-sensors = <&tmu 1>;
+
+ trips {
+ ddr_controller_alert: ddr-controller-alert {
+ temperature = <85000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ ddr_controller_crit: ddr-controller-crit {
+ temperature = <95000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&ddr_controller_alert>;
+ cooling-device =
+ <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+ };
+
pcie@...000000 { /* Integrated Endpoint Root Complex */
compatible = "pci-host-ecam-generic";
reg = <0x01 0xf0000000 0x0 0x100000>;
--
1.7.1
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