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Message-Id: <20250922-leo-dts-transceiver-v2-1-d2dc0e24a70b@fii-foxconn.com>
Date: Mon, 22 Sep 2025 15:02:48 +0800
From: Leo Wang <leo.jt.wang@...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>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
george.kw.lee@...-foxconn.com, bruce.jy.hung@...-foxconn.com,
leo.jt.wang@...-foxconn.com, Leo Wang <leo.jt.wang@...il.com>
Subject: [PATCH v2] ARM: dts: aspeed: clemente: add MCTP over I2C support
From: Leo Wang <leo.jt.wang@...il.com>
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 <leo.jt.wang@...il.com>
---
Please consider the patch "[PATCH v1 1/1] ARM: dts: aspeed: clemente: add MCTP over I2C support"
withdrawn.
After further review we determined that enabling MCTP in the Clemente device-tree is not
required; the affected devices are managed through other mechanisms and adding MCTP nodes
would be unnecessary. To avoid confusion and noise, please ignore the previous patch.
Original patch message-id: <20250918-leo-dts-transceiver-v1-1-3e2580325edc@...il.com>
---
Changes in v2:
- Withdraw patch; no functional changes
- Link to v1: https://lore.kernel.org/r/20250918-leo-dts-transceiver-v1-1-3e2580325edc@gmail.com
---
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/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts
index a614f947dafc9a6628c3f3d45b62ff3ca9d2b618..a2f0ed6e7bbefbdcec33f7ddebdf2de62adec164 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 {
&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;
};
i2c0mux0ch1: i2c@1 {
@@ -332,6 +337,7 @@ i2c0mux0ch2: i2c@2 {
#address-cells = <1>;
#size-cells = <0>;
reg = <2>;
+ mctp-controller;
};
i2c0mux0ch3: i2c@3 {
@@ -457,12 +463,12 @@ 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;
};
i2c0mux3ch1: i2c@1 {
@@ -514,6 +520,7 @@ i2c0mux3ch2: i2c@2 {
#address-cells = <1>;
#size-cells = <0>;
reg = <2>;
+ mctp-controller;
};
i2c0mux3ch3: i2c@3 {
---
base-commit: 1937f781fe7fcde26e537e74dfc6097fc08fc9bb
change-id: 20250918-leo-dts-transceiver-edc31e3c21af
Best regards,
--
Leo Wang <leo.jt.wang@...-foxconn.com>
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