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authorKunihiko Hayashi <hayashi.kunihiko@socionext.com>2017-09-04 09:58:36 +0300
committerMasahiro Yamada <yamada.masahiro@socionext.com>2017-10-15 11:35:26 +0300
commitfbd8d5832eb97b879bdcacdfdd5d891497f2a372 (patch)
tree1a2d8f8f6c7ed6efe80bd5b2052f8f1723260536 /arch/arm/boot/dts/uniphier-pxs2.dtsi
parent2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e (diff)
downloadlinux-fbd8d5832eb97b879bdcacdfdd5d891497f2a372.tar.xz
ARM: dts: uniphier: add nodes of thermal monitor and thermal zone for PXs2
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@socionext.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'arch/arm/boot/dts/uniphier-pxs2.dtsi')
-rw-r--r--arch/arm/boot/dts/uniphier-pxs2.dtsi47
1 files changed, 43 insertions, 4 deletions
diff --git a/arch/arm/boot/dts/uniphier-pxs2.dtsi b/arch/arm/boot/dts/uniphier-pxs2.dtsi
index 90b020c95083..995d2756dccc 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 {