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charset="utf-8" Define the I2C alias ports for the riser cards. Besides that, it also adds the i2c muxes to switch to the i2c alias ports. Signed-off-by: Chanh Nguyen --- .../aspeed/aspeed-bmc-ampere-mtmitchell.dts | 52 +++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts b/ar= ch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts index 1679911e4fd8..0703b77e438b 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts @@ -29,6 +29,18 @@ aliases { i2c30 =3D &ocpslot_0; i2c31 =3D &ocpslot_1; =20 + /* + * i2c bus 32-33 assigned to Riser slot 0-1 + */ + i2c32 =3D &i2c_riser0; + i2c33 =3D &i2c_riser1; + + /* + * i2c bus 38-39 assigned to FRU on Riser slot 0-1 + */ + i2c38 =3D &i2c_riser0_chn_0; + i2c39 =3D &i2c_riser1_chn_0; + /* * I2C NVMe alias port */ @@ -551,6 +563,46 @@ ocpslot_1_temp: temperature-sensor@1f { reg =3D <0x1f>; }; }; + + i2c_riser0: i2c@2 { + #address-cells =3D <1>; + #size-cells =3D <0>; + reg =3D <0x2>; + + i2c-mux@72 { + compatible =3D "nxp,pca9546"; + #address-cells =3D <1>; + #size-cells =3D <0>; + reg =3D <0x72>; + i2c-mux-idle-disconnect; + + i2c_riser0_chn_0: i2c@0 { + #address-cells =3D <1>; + #size-cells =3D <0>; + reg =3D <0x0>; + }; + }; + }; + + i2c_riser1: i2c@3 { + #address-cells =3D <1>; + #size-cells =3D <0>; + reg =3D <0x3>; + + i2c-mux@72 { + compatible =3D "nxp,pca9546"; + #address-cells =3D <1>; + #size-cells =3D <0>; + reg =3D <0x72>; + i2c-mux-idle-disconnect; + + i2c_riser1_chn_0: i2c@0 { + #address-cells =3D <1>; + #size-cells =3D <0>; + reg =3D <0x0>; + }; + }; + }; }; }; =20 --=20 2.43.0