From: Fred Chen <fredchen.openbmc@gmail.com>
Date: Wed, 15 Oct 2025 14:38:58 +0000 (+0800)
Subject: ARM: dts: aspeed: santabarbara: Add sensor support for extension boards
X-Git-Tag: v6.19-rc1~100^2~33^2~5
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=89c51b7066cb9ff5d2d03effc404bb49be2a1561;p=thirdparty%2Fkernel%2Flinux.git

ARM: dts: aspeed: santabarbara: Add sensor support for extension boards

add power monitor and temperature sensors for extension boards in bus 6,
8, 10 and 13.

Signed-off-by: Fred Chen <fredchen.openbmc@gmail.com>
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
---

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts
index 4adbf15d913ff..89b18afe2b004 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts
@@ -39,6 +39,38 @@
 		i2c37 = &i2c12mux0ch5;
 		i2c38 = &i2c12mux0ch6;
 		i2c39 = &i2c12mux0ch7;
+		i2c48 = &i2c6mux0ch0;
+		i2c49 = &i2c6mux0ch1;
+		i2c50 = &i2c6mux0ch2;
+		i2c51 = &i2c6mux0ch3;
+		i2c52 = &i2c8mux0ch0;
+		i2c53 = &i2c8mux0ch1;
+		i2c54 = &i2c8mux0ch2;
+		i2c55 = &i2c8mux0ch3;
+		i2c56 = &i2c10mux0ch0;
+		i2c57 = &i2c10mux0ch1;
+		i2c58 = &i2c10mux0ch2;
+		i2c59 = &i2c10mux0ch3;
+		i2c60 = &i2c13mux0ch0;
+		i2c61 = &i2c13mux0ch1;
+		i2c62 = &i2c13mux0ch2;
+		i2c63 = &i2c13mux0ch3;
+		i2c64 = &i2c6mux1ch0;
+		i2c65 = &i2c6mux1ch1;
+		i2c66 = &i2c6mux1ch2;
+		i2c67 = &i2c6mux1ch3;
+		i2c68 = &i2c8mux1ch0;
+		i2c69 = &i2c8mux1ch1;
+		i2c70 = &i2c8mux1ch2;
+		i2c71 = &i2c8mux1ch3;
+		i2c72 = &i2c10mux1ch0;
+		i2c73 = &i2c10mux1ch1;
+		i2c74 = &i2c10mux1ch2;
+		i2c75 = &i2c10mux1ch3;
+		i2c76 = &i2c13mux1ch0;
+		i2c77 = &i2c13mux1ch1;
+		i2c78 = &i2c13mux1ch2;
+		i2c79 = &i2c13mux1ch3;
 	};
 
 	chosen {
@@ -587,6 +619,210 @@
 		compatible = "atmel,24c256";
 		reg = <0x52>;
 	};
+
+	i2c-mux@71 {
+		compatible = "nxp,pca9546";
+		reg = <0x71>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+
+		i2c6mux0ch0: i2c@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			temperature-sensor@64 {
+				compatible = "microchip,mcp9600";
+				reg = <0x64>;
+			};
+
+			temperature-sensor@65 {
+				compatible = "microchip,mcp9600";
+				reg = <0x65>;
+			};
+
+			temperature-sensor@67 {
+				compatible = "microchip,mcp9600";
+				reg = <0x67>;
+			};
+
+			i2c-mux@72 {
+				compatible = "nxp,pca9546";
+				reg = <0x72>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				i2c-mux-idle-disconnect;
+
+				i2c6mux1ch0: i2c@0 {
+					reg = <0>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+
+				i2c6mux1ch1: i2c@1 {
+					reg = <1>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					voltage-sensor@48 {
+						compatible = "ti,ads7830";
+						reg = <0x48>;
+					};
+
+					voltage-sensor@49 {
+						compatible = "ti,ads7830";
+						reg = <0x49>;
+					};
+
+					temperature-sensor@4a {
+						compatible = "ti,tmp175";
+						reg = <0x4a>;
+					};
+
+					temperature-sensor@4b {
+						compatible = "ti,tmp175";
+						reg = <0x4b>;
+					};
+
+					eeprom@56 {
+						compatible = "atmel,24c256";
+						reg = <0x56>;
+					};
+				};
+
+				i2c6mux1ch2: i2c@2 {
+					reg = <2>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+
+				i2c6mux1ch3: i2c@3 {
+					reg = <3>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+			};
+		};
+
+		i2c6mux0ch1: i2c@1 {
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			potentiometer@2c {
+				compatible = "adi,ad5272-020";
+				reg = <0x2c>;
+			};
+
+			potentiometer@2e {
+				compatible = "adi,ad5272-020";
+				reg = <0x2e>;
+			};
+
+			potentiometer@2f {
+				compatible = "adi,ad5272-020";
+				reg = <0x2f>;
+			};
+
+			power-monitor@40 {
+				compatible = "ti,ina238";
+				reg = <0x40>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@44 {
+				compatible = "ti,ina238";
+				reg = <0x44>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@45 {
+				compatible = "ti,ina238";
+				reg = <0x45>;
+				shunt-resistor = <1000>;
+			};
+		};
+
+		i2c6mux0ch2: i2c@2 {
+			reg = <2>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			potentiometer@2c {
+				compatible = "adi,ad5272-020";
+				reg = <0x2c>;
+			};
+
+			potentiometer@2e {
+				compatible = "adi,ad5272-020";
+				reg = <0x2e>;
+			};
+
+			potentiometer@2f {
+				compatible = "adi,ad5272-020";
+				reg = <0x2f>;
+			};
+
+			power-monitor@40 {
+				compatible = "ti,ina238";
+				reg = <0x40>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@44 {
+				compatible = "ti,ina238";
+				reg = <0x44>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@45 {
+				compatible = "ti,ina238";
+				reg = <0x45>;
+				shunt-resistor = <1000>;
+			};
+		};
+
+		i2c6mux0ch3: i2c@3 {
+			reg = <3>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			voltage-sensor@1d {
+				compatible = "ti,adc128d818";
+				reg = <0x1d>;
+				ti,mode = /bits/ 8 <1>;
+			};
+
+			voltage-sensor@37 {
+				compatible = "ti,adc128d818";
+				reg = <0x37>;
+				ti,mode = /bits/ 8 <1>;
+			};
+
+			power-monitor@40 {
+				compatible = "ti,ina238";
+				reg = <0x40>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@45 {
+				compatible = "ti,ina238";
+				reg = <0x45>;
+				shunt-resistor = <1000>;
+			};
+
+			temperature-sensor@48 {
+				compatible = "ti,tmp175";
+				reg = <0x48>;
+			};
+
+			temperature-sensor@49 {
+				compatible = "ti,tmp175";
+				reg = <0x49>;
+			};
+		};
+	};
 };
 
 &i2c7 {
@@ -601,6 +837,210 @@
 		compatible = "atmel,24c256";
 		reg = <0x52>;
 	};
+
+	i2c-mux@71 {
+		compatible = "nxp,pca9546";
+		reg = <0x71>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+
+		i2c8mux0ch0: i2c@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			temperature-sensor@64 {
+				compatible = "microchip,mcp9600";
+				reg = <0x64>;
+			};
+
+			temperature-sensor@65 {
+				compatible = "microchip,mcp9600";
+				reg = <0x65>;
+			};
+
+			temperature-sensor@67 {
+				compatible = "microchip,mcp9600";
+				reg = <0x67>;
+			};
+
+			i2c-mux@72 {
+				compatible = "nxp,pca9546";
+				reg = <0x72>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				i2c-mux-idle-disconnect;
+
+				i2c8mux1ch0: i2c@0 {
+					reg = <0>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+
+				i2c8mux1ch1: i2c@1 {
+					reg = <1>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					voltage-sensor@48 {
+						compatible = "ti,ads7830";
+						reg = <0x48>;
+					};
+
+					voltage-sensor@49 {
+						compatible = "ti,ads7830";
+						reg = <0x49>;
+					};
+
+					temperature-sensor@4a {
+						compatible = "ti,tmp175";
+						reg = <0x4a>;
+					};
+
+					temperature-sensor@4b {
+						compatible = "ti,tmp175";
+						reg = <0x4b>;
+					};
+
+					eeprom@56 {
+						compatible = "atmel,24c256";
+						reg = <0x56>;
+					};
+				};
+
+				i2c8mux1ch2: i2c@2 {
+					reg = <2>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+
+				i2c8mux1ch3: i2c@3 {
+					reg = <3>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+			};
+		};
+
+		i2c8mux0ch1: i2c@1 {
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			potentiometer@2c {
+				compatible = "adi,ad5272-020";
+				reg = <0x2c>;
+			};
+
+			potentiometer@2e {
+				compatible = "adi,ad5272-020";
+				reg = <0x2e>;
+			};
+
+			potentiometer@2f {
+				compatible = "adi,ad5272-020";
+				reg = <0x2f>;
+			};
+
+			power-monitor@40 {
+				compatible = "ti,ina238";
+				reg = <0x40>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@44 {
+				compatible = "ti,ina238";
+				reg = <0x44>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@45 {
+				compatible = "ti,ina238";
+				reg = <0x45>;
+				shunt-resistor = <1000>;
+			};
+		};
+
+		i2c8mux0ch2: i2c@2 {
+			reg = <2>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			potentiometer@2c {
+				compatible = "adi,ad5272-020";
+				reg = <0x2c>;
+			};
+
+			potentiometer@2e {
+				compatible = "adi,ad5272-020";
+				reg = <0x2e>;
+			};
+
+			potentiometer@2f {
+				compatible = "adi,ad5272-020";
+				reg = <0x2f>;
+			};
+
+			power-monitor@40 {
+				compatible = "ti,ina238";
+				reg = <0x40>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@44 {
+				compatible = "ti,ina238";
+				reg = <0x44>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@45 {
+				compatible = "ti,ina238";
+				reg = <0x45>;
+				shunt-resistor = <1000>;
+			};
+		};
+
+		i2c8mux0ch3: i2c@3 {
+			reg = <3>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			voltage-sensor@1d {
+				compatible = "ti,adc128d818";
+				reg = <0x1d>;
+				ti,mode = /bits/ 8 <1>;
+			};
+
+			voltage-sensor@37 {
+				compatible = "ti,adc128d818";
+				reg = <0x37>;
+				ti,mode = /bits/ 8 <1>;
+			};
+
+			power-monitor@40 {
+				compatible = "ti,ina238";
+				reg = <0x40>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@45 {
+				compatible = "ti,ina238";
+				reg = <0x45>;
+				shunt-resistor = <1000>;
+			};
+
+			temperature-sensor@48 {
+				compatible = "ti,tmp175";
+				reg = <0x48>;
+			};
+
+			temperature-sensor@49 {
+				compatible = "ti,tmp175";
+				reg = <0x49>;
+			};
+		};
+	};
 };
 
 &i2c9 {
@@ -632,6 +1072,210 @@
 		compatible = "atmel,24c256";
 		reg = <0x52>;
 	};
+
+	i2c-mux@71 {
+		compatible = "nxp,pca9546";
+		reg = <0x71>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+
+		i2c10mux0ch0: i2c@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			temperature-sensor@64 {
+				compatible = "microchip,mcp9600";
+				reg = <0x64>;
+			};
+
+			temperature-sensor@65 {
+				compatible = "microchip,mcp9600";
+				reg = <0x65>;
+			};
+
+			temperature-sensor@67 {
+				compatible = "microchip,mcp9600";
+				reg = <0x67>;
+			};
+
+			i2c-mux@72 {
+				compatible = "nxp,pca9546";
+				reg = <0x72>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				i2c-mux-idle-disconnect;
+
+				i2c10mux1ch0: i2c@0 {
+					reg = <0>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+
+				i2c10mux1ch1: i2c@1 {
+					reg = <1>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					voltage-sensor@48 {
+						compatible = "ti,ads7830";
+						reg = <0x48>;
+					};
+
+					voltage-sensor@49 {
+						compatible = "ti,ads7830";
+						reg = <0x49>;
+					};
+
+					temperature-sensor@4a {
+						compatible = "ti,tmp175";
+						reg = <0x4a>;
+					};
+
+					temperature-sensor@4b {
+						compatible = "ti,tmp175";
+						reg = <0x4b>;
+					};
+
+					eeprom@56 {
+						compatible = "atmel,24c256";
+						reg = <0x56>;
+					};
+				};
+
+				i2c10mux1ch2: i2c@2 {
+					reg = <2>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+
+				i2c10mux1ch3: i2c@3 {
+					reg = <3>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+			};
+		};
+
+		i2c10mux0ch1: i2c@1 {
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			potentiometer@2c {
+				compatible = "adi,ad5272-020";
+				reg = <0x2c>;
+			};
+
+			potentiometer@2e {
+				compatible = "adi,ad5272-020";
+				reg = <0x2e>;
+			};
+
+			potentiometer@2f {
+				compatible = "adi,ad5272-020";
+				reg = <0x2f>;
+			};
+
+			power-monitor@40 {
+				compatible = "ti,ina238";
+				reg = <0x40>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@44 {
+				compatible = "ti,ina238";
+				reg = <0x44>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@45 {
+				compatible = "ti,ina238";
+				reg = <0x45>;
+				shunt-resistor = <1000>;
+			};
+		};
+
+		i2c10mux0ch2: i2c@2 {
+			reg = <2>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			potentiometer@2c {
+				compatible = "adi,ad5272-020";
+				reg = <0x2c>;
+			};
+
+			potentiometer@2e {
+				compatible = "adi,ad5272-020";
+				reg = <0x2e>;
+			};
+
+			potentiometer@2f {
+				compatible = "adi,ad5272-020";
+				reg = <0x2f>;
+			};
+
+			power-monitor@40 {
+				compatible = "ti,ina238";
+				reg = <0x40>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@44 {
+				compatible = "ti,ina238";
+				reg = <0x44>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@45 {
+				compatible = "ti,ina238";
+				reg = <0x45>;
+				shunt-resistor = <1000>;
+			};
+		};
+
+		i2c10mux0ch3: i2c@3 {
+			reg = <3>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			voltage-sensor@1d {
+				compatible = "ti,adc128d818";
+				reg = <0x1d>;
+				ti,mode = /bits/ 8 <1>;
+			};
+
+			voltage-sensor@37 {
+				compatible = "ti,adc128d818";
+				reg = <0x37>;
+				ti,mode = /bits/ 8 <1>;
+			};
+
+			power-monitor@40 {
+				compatible = "ti,ina238";
+				reg = <0x40>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@45 {
+				compatible = "ti,ina238";
+				reg = <0x45>;
+				shunt-resistor = <1000>;
+			};
+
+			temperature-sensor@48 {
+				compatible = "ti,tmp175";
+				reg = <0x48>;
+			};
+
+			temperature-sensor@49 {
+				compatible = "ti,tmp175";
+				reg = <0x49>;
+			};
+		};
+	};
 };
 
 &i2c11 {
@@ -768,6 +1412,210 @@
 		compatible = "atmel,24c256";
 		reg = <0x52>;
 	};
+
+	i2c-mux@71 {
+		compatible = "nxp,pca9546";
+		reg = <0x71>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+
+		i2c13mux0ch0: i2c@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			temperature-sensor@64 {
+				compatible = "microchip,mcp9600";
+				reg = <0x64>;
+			};
+
+			temperature-sensor@65 {
+				compatible = "microchip,mcp9600";
+				reg = <0x65>;
+			};
+
+			temperature-sensor@67 {
+				compatible = "microchip,mcp9600";
+				reg = <0x67>;
+			};
+
+			i2c-mux@72 {
+				compatible = "nxp,pca9546";
+				reg = <0x72>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				i2c-mux-idle-disconnect;
+
+				i2c13mux1ch0: i2c@0 {
+					reg = <0>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+
+				i2c13mux1ch1: i2c@1 {
+					reg = <1>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					voltage-sensor@48 {
+						compatible = "ti,ads7830";
+						reg = <0x48>;
+					};
+
+					voltage-sensor@49 {
+						compatible = "ti,ads7830";
+						reg = <0x49>;
+					};
+
+					temperature-sensor@4a {
+						compatible = "ti,tmp175";
+						reg = <0x4a>;
+					};
+
+					temperature-sensor@4b {
+						compatible = "ti,tmp175";
+						reg = <0x4b>;
+					};
+
+					eeprom@56 {
+						compatible = "atmel,24c256";
+						reg = <0x56>;
+					};
+				};
+
+				i2c13mux1ch2: i2c@2 {
+					reg = <2>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+
+				i2c13mux1ch3: i2c@3 {
+					reg = <3>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+			};
+		};
+
+		i2c13mux0ch1: i2c@1 {
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			potentiometer@2c {
+				compatible = "adi,ad5272-020";
+				reg = <0x2c>;
+			};
+
+			potentiometer@2e {
+				compatible = "adi,ad5272-020";
+				reg = <0x2e>;
+			};
+
+			potentiometer@2f {
+				compatible = "adi,ad5272-020";
+				reg = <0x2f>;
+			};
+
+			power-monitor@40 {
+				compatible = "ti,ina238";
+				reg = <0x40>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@44 {
+				compatible = "ti,ina238";
+				reg = <0x44>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@45 {
+				compatible = "ti,ina238";
+				reg = <0x45>;
+				shunt-resistor = <1000>;
+			};
+		};
+
+		i2c13mux0ch2: i2c@2 {
+			reg = <2>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			potentiometer@2c {
+				compatible = "adi,ad5272-020";
+				reg = <0x2c>;
+			};
+
+			potentiometer@2e {
+				compatible = "adi,ad5272-020";
+				reg = <0x2e>;
+			};
+
+			potentiometer@2f {
+				compatible = "adi,ad5272-020";
+				reg = <0x2f>;
+			};
+
+			power-monitor@40 {
+				compatible = "ti,ina238";
+				reg = <0x40>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@44 {
+				compatible = "ti,ina238";
+				reg = <0x44>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@45 {
+				compatible = "ti,ina238";
+				reg = <0x45>;
+				shunt-resistor = <1000>;
+			};
+		};
+
+		i2c13mux0ch3: i2c@3 {
+			reg = <3>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			voltage-sensor@1d {
+				compatible = "ti,adc128d818";
+				reg = <0x1d>;
+				ti,mode = /bits/ 8 <1>;
+			};
+
+			voltage-sensor@37 {
+				compatible = "ti,adc128d818";
+				reg = <0x37>;
+				ti,mode = /bits/ 8 <1>;
+			};
+
+			power-monitor@40 {
+				compatible = "ti,ina238";
+				reg = <0x40>;
+				shunt-resistor = <1000>;
+			};
+
+			power-monitor@45 {
+				compatible = "ti,ina238";
+				reg = <0x45>;
+				shunt-resistor = <1000>;
+			};
+
+			temperature-sensor@48 {
+				compatible = "ti,tmp175";
+				reg = <0x48>;
+			};
+
+			temperature-sensor@49 {
+				compatible = "ti,tmp175";
+				reg = <0x49>;
+			};
+		};
+	};
 };
 
 &i2c14 {