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arm64: dts: ti: k3-am62-wakeup: add VTM node

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The am62x supports a single Voltage and Thermal Management (VTM) module
located in the wakeup domain with two associated temperature monitors
located in hot spots of the die.

Signed-off-by: Bryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20230405215328.3755561-3-bb@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
Bryan Brattlof 2023-04-05 16:53:23 -05:00 committed by Vignesh Raghavendra
parent 96135297a7
commit bbb6dc6250
3 changed files with 47 additions and 2 deletions
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33
arch/arm64/boot/dts/ti/k3-am62-thermal.dtsi Normal file
View file

@ -0,0 +1,33 @@
// SPDX-License-Identifier: GPL-2.0
#include <dt-bindings/thermal/thermal.h>
thermal_zones: thermal-zones {
main0_thermal: main0-thermal {
polling-delay-passive = <250>; /* milliSeconds */
polling-delay = <500>; /* milliSeconds */
thermal-sensors = <&wkup_vtm0 0>;
trips {
main0_crit: main0-crit {
temperature = <105000>; /* milliCelsius */
hysteresis = <2000>; /* milliCelsius */
type = "critical";
};
};
};
main1_thermal: main1-thermal {
polling-delay-passive = <250>; /* milliSeconds */
polling-delay = <500>; /* milliSeconds */
thermal-sensors = <&wkup_vtm0 1>;
trips {
main1_crit: main1-crit {
temperature = <105000>; /* milliCelsius */
hysteresis = <2000>; /* milliCelsius */
type = "critical";
};
};
};
};

8
arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
View file

@ -61,4 +61,12 @@ wkup_rti0: watchdog@2b000000 {
/* Used by DM firmware */
status = "reserved";
};
wkup_vtm0: temperature-sensor@b00000 {
compatible = "ti,j7200-vtm";
reg = <0x00 0xb00000 0x00 0x400>,
<0x00 0xb01000 0x00 0x400>;
power-domains = <&k3_pds 95 TI_SCI_PD_EXCLUSIVE>;
#thermal-sensor-cells = <1>;
};
};

8
arch/arm64/boot/dts/ti/k3-am62.dtsi
View file

@ -81,6 +81,7 @@ cbass_main: bus@f0000 {
<0x00 0x04000000 0x00 0x04000000 0x00 0x01ff1400>,
/* Wakeup Domain Range */
<0x00 0x00b00000 0x00 0x00b00000 0x00 0x00002400>, /* VTM */
<0x00 0x2b000000 0x00 0x2b000000 0x00 0x00300400>,
<0x00 0x43000000 0x00 0x43000000 0x00 0x00020000>;
@ -91,14 +92,17 @@ cbass_mcu: bus@4000000 {
ranges = <0x00 0x04000000 0x00 0x04000000 0x00 0x01ff1400>; /* Peripheral window */
};
cbass_wakeup: bus@2b000000 {
cbass_wakeup: bus@b00000 {
compatible = "simple-bus";
#address-cells = <2>;
#size-cells = <2>;
ranges = <0x00 0x2b000000 0x00 0x2b000000 0x00 0x00300400>, /* Peripheral Window */
ranges = <0x00 0x00b00000 0x00 0x00b00000 0x00 0x00002400>, /* VTM */
<0x00 0x2b000000 0x00 0x2b000000 0x00 0x00300400>, /* Peripheral Window */
<0x00 0x43000000 0x00 0x43000000 0x00 0x00020000>;
};
};
#include "k3-am62-thermal.dtsi"
};
/* Now include the peripherals for each bus segments */