linux-kernel - [PATCH v2 1/6] arm64: dts: ti: k3-am62a: Add ESM nodes

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Message-ID: <20240813230312.3289428-2-jm@ti.com>
Date: Tue, 13 Aug 2024 18:03:07 -0500
From: Judith Mendez <jm@...com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Nishanth Menon <nm@...com>
CC: Vignesh Raghavendra <vigneshr@...com>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Jan Kiszka <jan.kiszka@...mens.com>,
        Judith
 Mendez <jm@...com>
Subject: [PATCH v2 1/6] arm64: dts: ti: k3-am62a: Add ESM nodes

Add Error Signaling Module (ESM) instances in MCU and MAIN
domains, set ESM interrupt sources for rti as per TRM [0] 10.4
Interrupt Sources.

Add comments to describe what interrupt sources are routed to
ESM modules.

[0] https://www.ti.com/lit/ug/spruj16b/spruj16b.pdf

Signed-off-by: Judith Mendez <jm@...com>
---
Changes since v1:
- Add bootph flag
- Add comment to ESM nodes
---
 arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 8 ++++++++
 arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi  | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
index 916fcf3cc57d1..8c35293c3d2b0 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
@@ -265,6 +265,14 @@ main_pmx0: pinctrl@...00 {
 		pinctrl-single,function-mask = <0xffffffff>;
 	};
 
+	main_esm: esm@...000 {
+		compatible = "ti,j721e-esm";
+		reg = <0x0 0x420000 0x0 0x1000>;
+		/* Interrupt sources: rti0, rti1, wrti0, rti4, rti2, rti3 */
+		ti,esm-pins = <192>, <193>, <195>, <204>, <209>, <210>;
+		bootph-pre-ram;
+	};
+
 	main_timer0: timer@...0000 {
 		compatible = "ti,am654-timer";
 		reg = <0x00 0x2400000 0x00 0x400>;
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
index 8c36e56f41388..a5ca4ce523a46 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
@@ -15,6 +15,14 @@ mcu_pmx0: pinctrl@...4000 {
 		status = "disabled";
 	};
 
+	mcu_esm: esm@...0000 {
+		compatible = "ti,j721e-esm";
+		reg = <0x0 0x4100000 0x0 0x1000>;
+		/* Interrupt sources: esm0_cfg, esm0_hi, esm0_low, mrti0 */
+		ti,esm-pins = <0>, <1>, <2>, <85>;
+		bootph-pre-ram;
+	};
+
 	/*
 	 * The MCU domain timer interrupts are routed only to the ESM module,
 	 * and not currently available for Linux. The MCU domain timers are
-- 
2.46.0