diff options
Diffstat (limited to 'arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 93 |
1 files changed, 91 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi index 2a4e10bc8801..48c92b428954 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi +++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi @@ -1,9 +1,11 @@ /* * Hardkernel Odroid XU3 board device tree source * - * Copyright (c) 2014 Collabora Ltd. * Copyright (c) 2013 Samsung Electronics Co., Ltd. * http://www.samsung.com + * Copyright (c) 2014 Collabora Ltd. + * Copyright (c) 2015 Lukasz Majewski <l.majewski@samsung.com> + * Anand Moon <linux.amoon@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -16,7 +18,6 @@ #include <dt-bindings/sound/samsung-i2s.h> #include "exynos5800.dtsi" #include "exynos5422-cpus.dtsi" -#include "exynos5422-cpu-thermal.dtsi" / { memory { @@ -54,6 +55,94 @@ #cooling-cells = <2>; cooling-levels = <0 130 170 230>; }; + + thermal-zones { + cpu0_thermal: cpu0-thermal { + thermal-sensors = <&tmu_cpu0 0>; + polling-delay-passive = <250>; + polling-delay = <0>; + trips { + cpu_alert0: cpu-alert-0 { + temperature = <50000>; /* millicelsius */ + hysteresis = <5000>; /* millicelsius */ + type = "active"; + }; + cpu_alert1: cpu-alert-1 { + temperature = <60000>; /* millicelsius */ + hysteresis = <5000>; /* millicelsius */ + type = "active"; + }; + cpu_alert2: cpu-alert-2 { + temperature = <70000>; /* millicelsius */ + hysteresis = <5000>; /* millicelsius */ + type = "active"; + }; + cpu_crit0: cpu-crit-0 { + temperature = <120000>; /* millicelsius */ + hysteresis = <0>; /* millicelsius */ + type = "critical"; + }; + /* + * Exynos542x supports only 4 trip-points + * so for these polling mode is required. + * Start polling at temperature level of last + * interrupt-driven trip: cpu_alert2 + */ + cpu_alert3: cpu-alert-3 { + temperature = <70000>; /* millicelsius */ + hysteresis = <10000>; /* millicelsius */ + type = "passive"; + }; + cpu_alert4: cpu-alert-4 { + temperature = <85000>; /* millicelsius */ + hysteresis = <10000>; /* millicelsius */ + type = "passive"; + }; + + }; + cooling-maps { + map0 { + trip = <&cpu_alert0>; + cooling-device = <&fan0 0 1>; + }; + map1 { + trip = <&cpu_alert1>; + cooling-device = <&fan0 1 2>; + }; + map2 { + trip = <&cpu_alert2>; + cooling-device = <&fan0 2 3>; + }; + /* + * When reaching cpu_alert3, reduce CPU + * by 2 steps. On Exynos5422/5800 that would + * be: 1600 MHz and 1100 MHz. + */ + map3 { + trip = <&cpu_alert3>; + cooling-device = <&cpu0 0 2>; + }; + map4 { + trip = <&cpu_alert3>; + cooling-device = <&cpu4 0 2>; + }; + + /* + * When reaching cpu_alert4, reduce CPU + * further, down to 600 MHz (11 steps for big, + * 7 steps for LITTLE). + */ + map5 { + trip = <&cpu_alert4>; + cooling-device = <&cpu0 3 7>; + }; + map6 { + trip = <&cpu_alert4>; + cooling-device = <&cpu4 3 11>; + }; + }; + }; + }; }; &bus_wcore { |
