From 9c18b2048274d05bc78cdc309278a581e77c19a1 Mon Sep 17 00:00:00 2001 From: Mike Hsieh Date: Fri, 22 May 2026 18:07:59 +0800 Subject: [PATCH] ARM: dts: aspeed: clemente: Remove IOB NIC TMP421 nodes Remove the TMP421 sensor entry from the DTS, as it is no longer the primary telemetry source. Accessing the CX8 NIC via I2C while it is powered off causes voltage leakage on the bus, leading to EEPROM corruption on shared I2C devices. Removing this node prevents the BMC from initiating traffic to the NIC during initialization, protecting the integrity of the shared bus. Signed-off-by: Mike Hsieh Signed-off-by: Andrew Jeffery --- .../aspeed/aspeed-bmc-facebook-clemente.dts | 20 ------------------- 1 file changed, 20 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 2aff21442f11..820d39a92974 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts @@ -443,11 +443,6 @@ i2c0mux2ch0: i2c@0 { #address-cells = <1>; #size-cells = <0>; reg = <0>; - // IOB0 NIC0 TEMP - temperature-sensor@1f { - compatible = "ti,tmp421"; - reg = <0x1f>; - }; }; i2c0mux2ch1: i2c@1 { @@ -466,11 +461,6 @@ i2c0mux2ch3: i2c@3 { #address-cells = <1>; #size-cells = <0>; reg = <3>; - // IOB0 NIC1 TEMP - temperature-sensor@1f { - compatible = "ti,tmp421"; - reg = <0x1f>; - }; }; }; @@ -637,11 +627,6 @@ i2c0mux5ch0: i2c@0 { #address-cells = <1>; #size-cells = <0>; reg = <0>; - // IOB1 NIC0 TEMP - temperature-sensor@1f { - compatible = "ti,tmp421"; - reg = <0x1f>; - }; }; i2c0mux5ch1: i2c@1 { @@ -666,11 +651,6 @@ i2c0mux5ch3: i2c@3 { #address-cells = <1>; #size-cells = <0>; reg = <3>; - // IOB1 NIC1 TEMP - temperature-sensor@1f { - compatible = "ti,tmp421"; - reg = <0x1f>; - }; }; }; };