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arm64: dts: imx8mp: Add thermal zones support 

i.MX8MP has a TMU inside which supports two thermal zones, add support
for them.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Anson Huang 2020-04-03 20:03:24 +08:00 committed by Shawn Guo
parent f5ac5ac12d
commit 30cdd62dce
1 changed files with 74 additions and 0 deletions
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74
arch/arm64/boot/dts/freescale/imx8mp.dtsi
View File

@ -7,6 +7,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/thermal/thermal.h>
#include "imx8mp-pinfunc.h"
@ -43,6 +44,7 @@
clocks = <&clk IMX8MP_CLK_ARM>;
enable-method = "psci";
next-level-cache = <&A53_L2>;
#cooling-cells = <2>;
};
A53_1: cpu@1 {
@ -53,6 +55,7 @@
clocks = <&clk IMX8MP_CLK_ARM>;
enable-method = "psci";
next-level-cache = <&A53_L2>;
#cooling-cells = <2>;
};
A53_2: cpu@2 {
@ -63,6 +66,7 @@
clocks = <&clk IMX8MP_CLK_ARM>;
enable-method = "psci";
next-level-cache = <&A53_L2>;
#cooling-cells = <2>;
};
A53_3: cpu@3 {
@ -73,6 +77,7 @@
clocks = <&clk IMX8MP_CLK_ARM>;
enable-method = "psci";
next-level-cache = <&A53_L2>;
#cooling-cells = <2>;
};
A53_L2: l2-cache0 {
@ -127,6 +132,68 @@
method = "smc";
};
thermal-zones {
cpu-thermal {
polling-delay-passive = <250>;
polling-delay = <2000>;
thermal-sensors = <&tmu 0>;
trips {
cpu_alert0: trip0 {
temperature = <85000>;
hysteresis = <2000>;
type = "passive";
};
cpu_crit0: trip1 {
temperature = <95000>;
hysteresis = <2000>;
type = "critical";
};
};
cooling-maps {
map0 {
trip = <&cpu_alert0>;
cooling-device =
<&A53_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&A53_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&A53_2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&A53_3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
};
soc-thermal {
polling-delay-passive = <250>;
polling-delay = <2000>;
thermal-sensors = <&tmu 1>;
trips {
soc_alert0: trip0 {
temperature = <85000>;
hysteresis = <2000>;
type = "passive";
};
soc_crit0: trip1 {
temperature = <95000>;
hysteresis = <2000>;
type = "critical";
};
};
cooling-maps {
map0 {
trip = <&soc_alert0>;
cooling-device =
<&A53_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&A53_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&A53_2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&A53_3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
};
};
timer {
compatible = "arm,armv8-timer";
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_LOW)>,
@ -215,6 +282,13 @@
gpio-ranges = <&iomuxc 0 114 30>;
};
tmu: tmu@30260000 {
compatible = "fsl,imx8mp-tmu";
reg = <0x30260000 0x10000>;
clocks = <&clk IMX8MP_CLK_TSENSOR_ROOT>;
#thermal-sensor-cells = <1>;
};
wdog1: watchdog@30280000 {
compatible = "fsl,imx8mp-wdt", "fsl,imx21-wdt";
reg = <0x30280000 0x10000>;