diff options
| author | Anson Huang <Anson.Huang@nxp.com> | 2020-03-08 14:58:41 +0800 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2020-03-16 08:45:17 +0800 |
| commit | 819779a986f0136df1c814f10b99ff76ccd752f2 (patch) | |
| tree | 501d01c2062e22a5ff624dafc3abda17626c39bf /arch/arm64/boot | |
| parent | 11699fd5ca3264e36dd1f5763810209412b0924d (diff) | |
arm64: dts: imx8mn: Add CPU thermal zone support
i.MX8MN shares same thermal sensor with i.MX8MM, add thermal zone
support for i.MX8MN.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm64/boot')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mn.dtsi | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi index ff9c1ea38130..e3f6b2888443 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mn.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 "imx8mn-pinfunc.h" @@ -67,6 +68,7 @@ nvmem-cells = <&cpu_speed_grade>; nvmem-cell-names = "speed_grade"; cpu-idle-states = <&cpu_pd_wait>; + #cooling-cells = <2>; }; A53_1: cpu@1 { @@ -79,6 +81,7 @@ next-level-cache = <&A53_L2>; operating-points-v2 = <&a53_opp_table>; cpu-idle-states = <&cpu_pd_wait>; + #cooling-cells = <2>; }; A53_2: cpu@2 { @@ -91,6 +94,7 @@ next-level-cache = <&A53_L2>; operating-points-v2 = <&a53_opp_table>; cpu-idle-states = <&cpu_pd_wait>; + #cooling-cells = <2>; }; A53_3: cpu@3 { @@ -103,6 +107,7 @@ next-level-cache = <&A53_L2>; operating-points-v2 = <&a53_opp_table>; cpu-idle-states = <&cpu_pd_wait>; + #cooling-cells = <2>; }; A53_L2: l2-cache0 { @@ -186,6 +191,38 @@ method = "smc"; }; + thermal-zones { + cpu-thermal { + polling-delay-passive = <250>; + polling-delay = <2000>; + thermal-sensors = <&tmu>; + 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>; + }; + }; + }; + }; + timer { compatible = "arm,armv8-timer"; interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_LOW)>, @@ -274,6 +311,13 @@ gpio-ranges = <&iomuxc 0 119 30>; }; + tmu: tmu@30260000 { + compatible = "fsl,imx8mn-tmu", "fsl,imx8mm-tmu"; + reg = <0x30260000 0x10000>; + clocks = <&clk IMX8MN_CLK_TMU_ROOT>; + #thermal-sensor-cells = <0>; + }; + wdog1: watchdog@30280000 { compatible = "fsl,imx8mn-wdt", "fsl,imx21-wdt"; reg = <0x30280000 0x10000>; |