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feat(fdts/morello): add thermal framework

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Add thermal zones, cooling maps (passive cooling via DVFS),
trip points, etc. for Morello SoC.

Change-Id: I5bbc2999a5fd16ebbb3bb2f987eeb42f70961b98
Signed-off-by: Anurag Koul <anurag.koul@arm.com>
This commit is contained in:
Anurag Koul 2022-09-13 17:22:17 +01:00
parent abc2919c6c
commit 0b221603e9
1 changed files with 122 additions and 0 deletions
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122
fdts/morello-soc.dts
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@ -35,6 +35,15 @@
device_type = "cpu";
enable-method = "psci";
clocks = <&scmi_dvfs 0>;
operating-points = <
/* kHz uV */
2600000 925000
2400000 875000
2200000 825000
2000000 775000
1800000 750000
>;
#cooling-cells = <2>;
};
cpu1: cpu1@100 {
compatible = "arm,armv8";
@ -42,6 +51,15 @@
device_type = "cpu";
enable-method = "psci";
clocks = <&scmi_dvfs 0>;
operating-points = <
/* kHz uV */
2600000 925000
2400000 875000
2200000 825000
2000000 775000
1800000 750000
>;
#cooling-cells = <2>;
};
cpu2: cpu2@10000 {
compatible = "arm,armv8";
@ -49,6 +67,15 @@
device_type = "cpu";
enable-method = "psci";
clocks = <&scmi_dvfs 1>;
operating-points = <
/* kHz uV */
2600000 925000
2400000 875000
2200000 825000
2000000 775000
1800000 750000
>;
#cooling-cells = <2>;
};
cpu3: cpu3@10100 {
compatible = "arm,armv8";
@ -56,6 +83,15 @@
device_type = "cpu";
enable-method = "psci";
clocks = <&scmi_dvfs 1>;
operating-points = <
/* kHz uV */
2600000 925000
2400000 875000
2200000 825000
2000000 775000
1800000 750000
>;
#cooling-cells = <2>;
};
};
@ -255,6 +291,92 @@
reg = <0x14>;
#clock-cells = <1>;
};
scmi_sensor: protocol@15 {
reg = <0x15>;
#thermal-sensor-cells = <1>;
};
};
};
thermal-zones {
clus0-thermal {
polling-delay-passive = <200>; /* ms */
polling-delay = <1000>; /* ms */
thermal-sensors = <&scmi_sensor 0>;
trips {
clus0_alarm: clus0-alarm {
temperature = <85000>; /* millicelsius */
hysteresis = <1000>; /* millicelsius */
type = "passive";
};
clus0_shutdown: clus0-shutdown {
temperature = <90000>; /* millicelsius */
hysteresis = <0>; /* millicelsius */
type = "critical";
};
};
cooling-maps {
map0 {
trip = <&clus0_alarm>;
cooling-device = <&cpu0 4 4>, <&cpu1 4 4>;
};
};
};
clus1-thermal {
polling-delay-passive = <200>; /* ms */
polling-delay = <1000>; /* ms */
thermal-sensors = <&scmi_sensor 1>;
trips {
clus1_alarm: clus1-alarm {
temperature = <85000>; /* millicelsius */
hysteresis = <1000>; /* millicelsius */
type = "passive";
};
clus1_shutdown: clus1-shutdown {
temperature = <90000>; /* millicelsius */
hysteresis = <0>; /* millicelsius */
type = "critical";
};
};
cooling-maps {
map0 {
trip = <&clus1_alarm>;
cooling-device = <&cpu2 4 4>, <&cpu3 4 4>;
};
};
};
sys-thermal {
polling-delay-passive = <200>; /* ms */
polling-delay = <1000>; /* ms */
thermal-sensors = <&scmi_sensor 2>;
trips {
sys_alarm: sys-alarm {
temperature = <85000>; /* millicelsius */
hysteresis = <1000>; /* millicelsius */
type = "passive";
};
sys_shutdown: sys-shutdown {
temperature = <90000>; /* millicelsius */
hysteresis = <0>; /* millicelsius */
type = "critical";
};
};
cooling-maps {
map0 {
trip = <&sys_alarm>;
cooling-device = <&cpu0 4 4>,
<&cpu1 4 4>,
<&cpu2 4 4>,
<&cpu3 4 4>;
};
};
};
};