Add nodes of thermal monitor and thermal zone for UniPhier PXs2 SoC.
The thermal monitor node is included in sysctrl. Since the efuse might not
have a calibrated value of thermal monitor, this patch gives the default
value for PXs2.
Furthermore, add cpuN labels for reference in cooling-device property.
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx>
---
arch/arm/boot/dts/uniphier-pxs2.dtsi | 47 +++++++++++++++++++++++++++++++++---
1 file changed, 43 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/uniphier-pxs2.dtsi b/arch/arm/boot/dts/uniphier-pxs2.dtsi
index 90b020c..f2dfebe 100644
--- a/arch/arm/boot/dts/uniphier-pxs2.dtsi
+++ b/arch/arm/boot/dts/uniphier-pxs2.dtsi
@@ -7,6 +7,8 @@
* SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
+#include <dt-bindings/thermal/thermal.h>
+
/ {
compatible = "socionext,uniphier-pxs2";
#address-cells = <1>;
@@ -16,7 +18,7 @@
#address-cells = <1>;
#size-cells = <0>;
- cpu@0 {
+ cpu0: cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <0>;
@@ -24,9 +26,10 @@
enable-method = "psci";
next-level-cache = <&l2>;
operating-points-v2 = <&cpu_opp>;
+ #cooling-cells = <2>;
};
- cpu@1 {
+ cpu1: cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <1>;
@@ -36,7 +39,7 @@
operating-points-v2 = <&cpu_opp>;
};
- cpu@2 {
+ cpu2: cpu@2 {
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <2>;
@@ -46,7 +49,7 @@
operating-points-v2 = <&cpu_opp>;
};
- cpu@3 {
+ cpu3: cpu@3 {
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <3>;
@@ -114,6 +117,35 @@
};
};
+ thermal-zones {
+ cpu_thermal {
+ polling-delay-passive = <250>; /* 250ms */
+ polling-delay = <1000>; /* 1000ms */
+ thermal-sensors = <&pvtctl>;
+
+ trips {
+ cpu_crit: cpu_crit {
+ temperature = <95000>; /* 95C */
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ cpu_alert: cpu_alert {
+ temperature = <85000>; /* 85C */
+ hysteresis = <2000>;
+ type = "passive";
+ };
+ };
+
+ cooling-maps {
+ map {
+ trip = <&cpu_alert>;
+ cooling-device = <&cpu0
+ THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+ };
+
soc {
compatible = "simple-bus";
#address-cells = <1>;
@@ -358,6 +390,13 @@
compatible = "socionext,uniphier-pxs2-reset";
#reset-cells = <1>;
};
+
+ pvtctl: pvtctl {
+ compatible = "socionext,uniphier-pxs2-thermal";
+ interrupts = <0 3 4>;
+ #thermal-sensor-cells = <0>;
+ socionext,tmod-calibration = <0x0f86 0x6844>;
+ };
};
nand: nand@68000000 {
--
2.7.4
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