diff options
| author | Anson Huang <Anson.Huang@nxp.com> | 2020-04-03 20:03:24 +0800 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2020-04-25 16:15:00 +0800 |
| commit | 30cdd62dce6b59692a3a9081ab8116a0da07ede4 (patch) | |
| tree | 0e37ebb694a9af29d4ca10e06b31e4a502e6520a /arch/arm64/boot/dts/freescale/imx8mp.dtsi | |
| parent | f5ac5ac12dd678f0abe708baa55a5049a44b7ab8 (diff) | |
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>
Diffstat (limited to 'arch/arm64/boot/dts/freescale/imx8mp.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mp.dtsi | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi index 9b1616e59d58..77aff14155b2 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -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>; |