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[125.227.29.20]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-32ed276d2f8sm4886810a91.24.2025.09.18.02.43.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Sep 2025 02:43:42 -0700 (PDT) From: Leo Wang Date: Thu, 18 Sep 2025 17:43:06 +0800 Subject: [PATCH] ARM: dts: aspeed: clemente: add MCTP over I2C support Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250918-leo-dts-transceiver-v1-1-3e2580325edc@gmail.com> X-B4-Tracking: v=1; b=H4sIACnUy2gC/x3MQQqEMAxG4atI1gZsZWD0KuKitL8zAamSiAjSu 1tcfov3bjKowGhsblKcYrLlCtc2FP8h/8CSqsl3/tMN7ssrNk6H8aEhW4ScUEaKvUMfvQsL1XJ XLHK912ku5QHFt0+wZQAAAA== X-Change-ID: 20250918-leo-dts-transceiver-edc31e3c21af To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Joel Stanley , Andrew Jeffery Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, george.kw.lee@fii-foxconn.com, bruce.jy.hung@fii-foxconn.com, leo.jt.wang@fii-foxconn.com, Leo Wang X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1758188620; l=2154; i=leo.jt.wang@gmail.com; s=20250618; h=from:subject:message-id; bh=nVDRdbCkjgVW2Hem9dJFdrSJ8lRD2Z2Fl11Ez5/qXTc=; b=gGwy/tJbdh92kaL3iGxdJ0l55f8lVj/pdra8VUU6oBnNsmqeDhiUPxiVekZn/UwIGlSAduWaT s65s9f5gLsNBz2gYwdLOzqRJ9FmS9d3xS2QLQLwQXoz1a7on5CCimYt X-Developer-Key: i=leo.jt.wang@gmail.com; a=ed25519; pk=x+DKjAtU/ZbbMkkAVdwfZzKpvNUVgiV1sLJbidVIwSQ= Enable MCTP communication on the Meta Clemente BMC board: - Add an MCTP I2C controller node at address 0x10 on I2C0 - Mark selected I2C mux channels as MCTP controllers - Remove unused "i2c-mux-idle-disconnect" properties This allows MCTP devices to be discovered and used for management communication on the Clemente platform. Signed-off-by: Leo Wang --- arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts b/ar= ch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts index a614f947dafc9a6628c3f3d45b62ff3ca9d2b618..a2f0ed6e7bbefbdcec33f7ddebd= f2de62adec164 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts @@ -269,18 +269,23 @@ &gpio1 { =20 &i2c0 { status =3D "okay"; + multi-master; + mctp@10 { + compatible =3D "mctp-i2c-controller"; + reg =3D <(0x10 | I2C_OWN_SLAVE_ADDRESS)>; + }; =20 i2c-mux@71 { compatible =3D "nxp,pca9546"; reg =3D <0x71>; #address-cells =3D <1>; #size-cells =3D <0>; - i2c-mux-idle-disconnect; =20 i2c0mux0ch0: i2c@0 { #address-cells =3D <1>; #size-cells =3D <0>; reg =3D <0>; + mctp-controller; }; =20 i2c0mux0ch1: i2c@1 { @@ -332,6 +337,7 @@ i2c0mux0ch2: i2c@2 { #address-cells =3D <1>; #size-cells =3D <0>; reg =3D <2>; + mctp-controller; }; =20 i2c0mux0ch3: i2c@3 { @@ -457,12 +463,12 @@ i2c-mux@75 { reg =3D <0x75>; #address-cells =3D <1>; #size-cells =3D <0>; - i2c-mux-idle-disconnect; =20 i2c0mux3ch0: i2c@0 { #address-cells =3D <1>; #size-cells =3D <0>; reg =3D <0>; + mctp-controller; }; =20 i2c0mux3ch1: i2c@1 { @@ -514,6 +520,7 @@ i2c0mux3ch2: i2c@2 { #address-cells =3D <1>; #size-cells =3D <0>; reg =3D <2>; + mctp-controller; }; =20 i2c0mux3ch3: i2c@3 { --- base-commit: c65261717599d419e9c683d85f515d3ca2261549 change-id: 20250918-leo-dts-transceiver-edc31e3c21af Best regards, --=20 Leo Wang