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charset="utf-8" The BMC UART8 and UART9 were connected to the Secpro and Mpro console of socket S1 on the Mt.Mitchell system. Signed-off-by: Chanh Nguyen --- arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts b/arch/arm/= boot/dts/aspeed-bmc-ampere-mtmitchell.dts index 1e0e88465254..e79f56208b89 100644 --- a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts +++ b/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts @@ -9,6 +9,10 @@ / { model =3D "Ampere Mt.Mitchell BMC"; compatible =3D "ampere,mtmitchell-bmc", "aspeed,ast2600"; + aliases { + serial7 =3D &uart8; + serial8 =3D &uart9; + }; =20 chosen { stdout-path =3D &uart5; @@ -307,6 +311,14 @@ status =3D "okay"; }; =20 +&uart8 { + status =3D "okay"; +}; + +&uart9 { + status =3D "okay"; +}; + &i2c0 { status =3D "okay"; =20 --=20 2.17.1 From nobody Tue Dec 16 18:20:10 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2B9E2C6FD18 for ; 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charset="utf-8" Add the MAX31790 node as a Fan I2C controller. It controls the TACH and PWM for Fan Mt.Mitchell system. Signed-off-by: Chanh Nguyen --- arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts b/arch/arm/= boot/dts/aspeed-bmc-ampere-mtmitchell.dts index e79f56208b89..6455cf80da0e 100644 --- a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts +++ b/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts @@ -477,6 +477,18 @@ line-name =3D "bmc-ocp0-en-n"; }; }; + + max31790@20 { + compatible =3D "maxim,max31790"; + reg =3D <0x20>; + pwm-to-tach =3D <0 0 0 0 1 1>; + }; + + max31790@2f { + compatible =3D "maxim,max31790"; + reg =3D <0x2f>; + pwm-to-tach =3D <0 0 0 0 1 1>; + }; }; =20 &i2c9 { --=20 2.17.1 From nobody Tue Dec 16 18:20:10 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8F571C77B73 for ; Tue, 25 Apr 2023 06:58:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233380AbjDYG6b (ORCPT ); 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charset="utf-8" Change to use I2C ADC controller (ltc2497) for Mt.Mitchell DVT and later hardware. Signed-off-by: Chanh Nguyen --- .../boot/dts/aspeed-bmc-ampere-mtmitchell.dts | 107 +++++++++++------- 1 file changed, 66 insertions(+), 41 deletions(-) diff --git a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts b/arch/arm/= boot/dts/aspeed-bmc-ampere-mtmitchell.dts index 6455cf80da0e..0b5ea8620063 100644 --- a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts +++ b/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts @@ -65,174 +65,192 @@ =20 adc0mux: adc0mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 0>; + io-channels =3D <&adc_i2c_0 0>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc1mux: adc1mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 1>; + io-channels =3D <&adc_i2c_0 1>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc2mux: adc2mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 2>; + io-channels =3D <&adc_i2c_0 2>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc3mux: adc3mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 3>; + io-channels =3D <&adc_i2c_0 3>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc4mux: adc4mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 4>; + io-channels =3D <&adc_i2c_0 4>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc5mux: adc5mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 5>; + io-channels =3D <&adc_i2c_0 5>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc6mux: adc6mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 6>; + io-channels =3D <&adc_i2c_0 6>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc7mux: adc7mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 7>; + io-channels =3D <&adc_i2c_0 7>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc8mux: adc8mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 0>; + io-channels =3D <&adc_i2c_0 8>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc9mux: adc9mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 1>; + io-channels =3D <&adc_i2c_0 9>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc10mux: adc10mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 2>; + io-channels =3D <&adc_i2c_0 10>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc11mux: adc11mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 3>; + io-channels =3D <&adc_i2c_0 11>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc12mux: adc12mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 4>; + io-channels =3D <&adc_i2c_0 12>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc13mux: adc13mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 5>; + io-channels =3D <&adc_i2c_0 13>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc14mux: adc14mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 6>; + io-channels =3D <&adc_i2c_0 14>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc15mux: adc15mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 7>; + io-channels =3D <&adc_i2c_0 15>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 iio-hwmon { compatible =3D "iio-hwmon"; - io-channels =3D <&adc0mux 0>, <&adc0mux 1>, - <&adc1mux 0>, <&adc1mux 1>, - <&adc2mux 0>, <&adc2mux 1>, - <&adc3mux 0>, <&adc3mux 1>, - <&adc4mux 0>, <&adc4mux 1>, - <&adc5mux 0>, <&adc5mux 1>, - <&adc6mux 0>, <&adc6mux 1>, - <&adc7mux 0>, <&adc7mux 1>, - <&adc8mux 0>, <&adc8mux 1>, - <&adc9mux 0>, <&adc9mux 1>, - <&adc10mux 0>, <&adc10mux 1>, - <&adc11mux 0>, <&adc11mux 1>, - <&adc12mux 0>, <&adc12mux 1>, - <&adc13mux 0>, <&adc13mux 1>, - <&adc14mux 0>, <&adc14mux 1>, - <&adc15mux 0>, <&adc15mux 1>, - <&adc_i2c 0>, <&adc_i2c 1>, - <&adc_i2c 2>, <&adc_i2c 3>, - <&adc_i2c 4>, <&adc_i2c 5>, - <&adc_i2c 6>, <&adc_i2c 7>, - <&adc_i2c 8>, <&adc_i2c 9>, - <&adc_i2c 10>, <&adc_i2c 11>, - <&adc_i2c 12>, <&adc_i2c 13>, - <&adc_i2c 14>, <&adc_i2c 15>; + io-channels =3D <&adc0mux 0>, <&adc0mux 1>, + <&adc1mux 0>, <&adc1mux 1>, + <&adc2mux 0>, <&adc2mux 1>, + <&adc3mux 0>, <&adc3mux 1>, + <&adc4mux 0>, <&adc4mux 1>, + <&adc5mux 0>, <&adc5mux 1>, + <&adc6mux 0>, <&adc6mux 1>, + <&adc7mux 0>, <&adc7mux 1>, + <&adc8mux 0>, <&adc8mux 1>, + <&adc9mux 0>, <&adc9mux 1>, + <&adc10mux 0>, <&adc10mux 1>, + <&adc11mux 0>, <&adc11mux 1>, + <&adc12mux 0>, <&adc12mux 1>, + <&adc13mux 0>, <&adc13mux 1>, + <&adc14mux 0>, <&adc14mux 1>, + <&adc15mux 0>, <&adc15mux 1>, + <&adc_i2c_1 0>, <&adc_i2c_1 1>, + <&adc_i2c_1 2>, <&adc_i2c_1 3>, + <&adc_i2c_1 4>, <&adc_i2c_1 5>, + <&adc_i2c_1 6>, <&adc_i2c_1 7>, + <&adc_i2c_1 8>, <&adc_i2c_1 9>, + <&adc_i2c_1 10>, <&adc_i2c_1 11>, + <&adc_i2c_1 12>, <&adc_i2c_1 13>, + <&adc_i2c_1 14>, <&adc_i2c_1 15>, + <&adc0 0>, <&adc0 1>, + <&adc0 2>; }; }; =20 @@ -353,7 +371,14 @@ &i2c4 { status =3D "okay"; =20 - adc_i2c: adc@16 { + adc_i2c_0: adc@14 { + compatible =3D "lltc,ltc2497"; + reg =3D <0x14>; + vref-supply =3D <&voltage_mon_reg>; 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charset="utf-8" Enable MCTP driver on I2C3 bus for MCTP transaction Signed-off-by: Chanh Nguyen --- arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts b/arch/arm/= boot/dts/aspeed-bmc-ampere-mtmitchell.dts index 0b5ea8620063..33e06eafed31 100644 --- a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts +++ b/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts @@ -366,6 +366,13 @@ =20 &i2c3 { status =3D "okay"; + bus-frequency =3D <1000000>; + multi-master; + mctp-controller; + mctp@10 { + compatible =3D "mctp-i2c-controller"; + reg =3D <0x10>; + }; }; =20 &i2c4 { --=20 2.17.1