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Thu, 19 Jan 2023 16:13:30 -0600 From: Bryan Brattlof To: Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski CC: ARM Linux Mailing List , Device Tree Mailing List , Linux Kernel Mailing List , Bryan Brattlof Subject: [PATCH 2/6] arm64: dts: ti: k3-am62-wakeup: add VTM node Date: Thu, 19 Jan 2023 16:13:18 -0600 Message-ID: <20230119221322.12563-3-bb@ti.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230119221322.12563-1-bb@ti.com> References: <20230119221322.12563-1-bb@ti.com> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3326; i=bb@ti.com; h=from:subject; bh=W31s4HWtI6oPxVN7LZbcq2NBLgzbe0T/4XYkAdrsJro=; b=owNCWmg5MUFZJlNZ8sDBIwAAZ////39fviu96RH2e9/9v7xf77zvfpbk/kcd3W///vpdw9wwAQkB iQ02oYjQAAyAA0ADQDQAAaA0aAeoGg00DR6Q0aaaANNHqaNPSM0nlNDIw1Dk0AaaAaMENANDJo0epj UbSGgaNDTQDIaA9QNDJoDR6jTIZGTR6mgaBoNNGIDTIgwmIDJk0DE0DJoZNDQaYRo0AxDJkGEyDTEa DIaDEDQyMgAMmmmTExDQAfDZfHgLRYZCDRvT6cNweamndZRJhBsxoM0diYICLGBFshE9dV2Mk5QEAs r5SAwQ9Cj0DokoJRIhmOduSgebj6AF6h33bB6iVIueC5799K06hh/CBF2S82WCzd61jiguEr3C5N9T aMZkjAeaoEhl1eFPiTMvAsYXOeW59o2dKlZLaBcd4dgMxUZBqcJoD2rc4j8riGn9cSsj3BNR1Kpf+z kOqxtolEAIpVjeRNufaPByT5hm7a53tNNF7IOzGWOCzefCWoGiH4AdfigTgon9g+JbU3ogrn/ArDZM AmqfFminWyr0/ArBAxcMFgHroJfP6FYvuKZEW9ZK7gdJEYByqalqZR3/bPslyOZIs0k7lwDdnhxyPg FdMit3iEMUQ54IuVs8b5kW7BS5g1HCNnZU+6pXZhyVclId+oLmnl4dBsiipf/F3JFOFCQ8sDBIwA== X-Developer-Key: i=bb@ti.com; a=openpgp; fpr=D3D177E40A38DF4D1853FEEF41B90D5D71D56CE0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230119_141338_398687_28A3AB50 X-CRM114-Status: GOOD ( 15.81 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 --- arch/arm64/boot/dts/ti/k3-am62-thermal.dtsi | 33 +++++++++++++++++++++ arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi | 8 +++++ arch/arm64/boot/dts/ti/k3-am62.dtsi | 6 +++- 3 files changed, 46 insertions(+), 1 deletion(-) create mode 100644 arch/arm64/boot/dts/ti/k3-am62-thermal.dtsi diff --git a/arch/arm64/boot/dts/ti/k3-am62-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-am62-thermal.dtsi new file mode 100644 index 0000000000000..a358757e26f07 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am62-thermal.dtsi @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include + +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"; + }; + }; + }; +}; diff --git a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi index 38dced6b4fef9..91ec9887ac6d1 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi @@ -40,4 +40,12 @@ wkup_i2c0: i2c@2b200000 { clock-names = "fck"; status = "disabled"; }; + + 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>; + }; }; diff --git a/arch/arm64/boot/dts/ti/k3-am62.dtsi b/arch/arm64/boot/dts/ti/k3-am62.dtsi index 37fcbe7a3c336..74cf1b4d7a6ad 100644 --- a/arch/arm64/boot/dts/ti/k3-am62.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62.dtsi @@ -80,6 +80,7 @@ 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>; @@ -94,10 +95,13 @@ cbass_wakeup: bus@2b000000 { 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 */