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arm64: dts: ti: k3-am64-main: add VTM node

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The am64x supports a single VTM module which is located in the main
domain with two associated temperature monitors located at different hot
spots on the die.

Tested-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Bryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20230405215328.3755561-2-bb@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
Bryan Brattlof 2023-04-05 16:53:22 -05:00 committed by Vignesh Raghavendra
parent 715084ecc2
commit 96135297a7
3 changed files with 44 additions and 0 deletions
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8
arch/arm64/boot/dts/ti/k3-am64-main.dtsi
View file

@ -1536,4 +1536,12 @@ elm0: ecc@25010000 {
clock-names = "fck";
status = "disabled";
};
main_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>;
};
};

33
arch/arm64/boot/dts/ti/k3-am64-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 = <&main_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 = <&main_vtm0 1>;
trips {
main1_crit: main1-crit {
temperature = <105000>; /* milliCelsius */
hysteresis = <2000>; /* milliCelsius */
type = "critical";
};
};
};
};

3
arch/arm64/boot/dts/ti/k3-am64.dtsi
View file

@ -54,6 +54,7 @@ cbass_main: bus@f4000 {
<0x00 0x00420000 0x00 0x00420000 0x00 0x00001000>, /* ESM0 */
<0x00 0x00600000 0x00 0x00600000 0x00 0x00001100>, /* GPIO */
<0x00 0x00a40000 0x00 0x00a40000 0x00 0x00000800>, /* Timesync router */
<0x00 0x00b00000 0x00 0x00b00000 0x00 0x00002400>, /* VTM */
<0x00 0x01000000 0x00 0x01000000 0x00 0x02330400>, /* First peripheral window */
<0x00 0x08000000 0x00 0x08000000 0x00 0x00200000>, /* Main CPSW */
<0x00 0x0d000000 0x00 0x0d000000 0x00 0x00800000>, /* PCIE_CORE */
@ -90,6 +91,8 @@ cbass_mcu: bus@4000000 {
ranges = <0x00 0x04000000 0x00 0x04000000 0x00 0x01ff1400>; /* Peripheral window */
};
};
#include "k3-am64-thermal.dtsi"
};
/* Now include the peripherals for each bus segments */