linux-kernel - [PATCH v6 10/10] ARM: dts: aspeed: catalina: Enable MCTP support for NIC management

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Message-Id: <20250321-potin-catalina-dts-update-20250102-v6-10-4bd85efeb9b4@gmail.com>
Date: Fri, 21 Mar 2025 15:26:11 +0800
From: Potin Lai <potin.lai.pt@...il.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Joel Stanley <joel@....id.au>, 
 Andrew Jeffery <andrew@...econstruct.com.au>, 
 Patrick Williams <patrick@...cx.xyz>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org, 
 Cosmo Chou <cosmo.chou@...ntatw.com>, Potin Lai <potin.lai@...ntatw.com>, 
 Potin Lai <potin.lai.pt@...il.com>
Subject: [PATCH v6 10/10] ARM: dts: aspeed: catalina: Enable MCTP support
 for NIC management

Add the `mctp-controller` property and MCTP nodes to enable support for
backend NIC management via PLDM over MCTP.

Signed-off-by: Potin Lai <potin.lai.pt@...il.com>
---
 arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-catalina.dts | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-catalina.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-catalina.dts
index a6a2dd725266..5fb67ad2d777 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-catalina.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-catalina.dts
@@ -186,18 +186,23 @@ flash@1 {
 
 &i2c0 {
 	status = "okay";
+	multi-master;
+	mctp@10 {
+		compatible = "mctp-i2c-controller";
+		reg = <(0x10 | I2C_OWN_SLAVE_ADDRESS)>;
+	};
 
 	i2c-mux@71 {
 		compatible = "nxp,pca9546";
 		reg = <0x71>;
 		#address-cells = <1>;
 		#size-cells = <0>;
-		i2c-mux-idle-disconnect;
 
 		i2c0mux0ch0: i2c@0 {
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0>;
+			mctp-controller;
 
 			// IOB0 NIC0 TEMP
 			temperature-sensor@1f {
@@ -214,6 +219,7 @@ i2c0mux0ch2: i2c@2 {
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <2>;
+			mctp-controller;
 
 			// IOB0 NIC1 TEMP
 			temperature-sensor@1f {
@@ -305,12 +311,12 @@ i2c-mux@75 {
 		reg = <0x75>;
 		#address-cells = <1>;
 		#size-cells = <0>;
-		i2c-mux-idle-disconnect;
 
 		i2c0mux3ch0: i2c@0 {
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0>;
+			mctp-controller;
 
 			// IOB1 NIC0 TEMP
 			temperature-sensor@1f {
@@ -327,6 +333,7 @@ i2c0mux3ch2: i2c@2 {
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <2>;
+			mctp-controller;
 
 			// IOB1 NIC1 TEMP
 			temperature-sensor@1f {

-- 
2.31.1