diff mbox series

[v3,07/11] arm64: dts: ti: k3-am64-main: add VTM node

Message ID 20221031232702.10339-8-bb@ti.com
State Accepted
Commit 96135297a76003faae68e3aa86e2e19851510eb9
Headers show
Series enable VTM node for all TI's K3 SoCs | expand

Commit Message

Bryan Brattlof Oct. 31, 2022, 11:26 p.m. UTC 
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.

Signed-off-by: Bryan Brattlof <bb@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi    |  8 +++++
 arch/arm64/boot/dts/ti/k3-am64-thermal.dtsi | 33 +++++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-am64.dtsi         |  4 +++
 3 files changed, 45 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am64-thermal.dtsi
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index d6aa23681bbe5..a31a139127e35 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -1356,4 +1356,12 @@  elm0: ecc@25010000 {
 		clocks = <&k3_clks 54 0>;
 		clock-names = "fck";
 	};
+
+	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>;
+	};
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am64-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-am64-thermal.dtsi
new file mode 100644
index 0000000000000..1819a6948b19d
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am64-thermal.dtsi
@@ -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 = <&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 = <&vtm0 1>;
+
+		trips {
+			main1_crit: main1-crit {
+				temperature = <105000>;	/* milliCelsius */
+				hysteresis = <2000>;	/* milliCelsius */
+				type = "critical";
+			};
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am64.dtsi b/arch/arm64/boot/dts/ti/k3-am64.dtsi
index c858725133af4..a0170605d7b4e 100644
--- a/arch/arm64/boot/dts/ti/k3-am64.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64.dtsi
@@ -69,6 +69,7 @@  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 */
@@ -105,6 +106,9 @@  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 */