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ARM: dts: aspeed: mtmitchell: Add Riser cards

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Define the I2C alias ports for the riser cards.

Add the i2c muxes to switch to the i2c alias ports and
the eeprom nodes to read the FRU contents on riser cards.

Signed-off-by: Chanh Nguyen <chanh@os.amperecomputing.com>
Link: https://lore.kernel.org/r/20240806071806.1666550-4-chanh@os.amperecomputing.com
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>
This commit is contained in:
Chanh Nguyen 2024-08-06 07:18:04 +00:00 committed by Joel Stanley
parent f90607680b
commit 0aa7ca5e8f
1 changed files with 64 additions and 0 deletions
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64
arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts
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@ -29,6 +29,18 @@ aliases {
i2c30 = &ocpslot_0;
i2c31 = &ocpslot_1;
/*
* i2c bus 32-33 assigned to Riser slot 0-1
*/
i2c32 = &i2c_riser0;
i2c33 = &i2c_riser1;
/*
* i2c bus 38-39 assigned to FRU on Riser slot 0-1
*/
i2c38 = &i2c_riser0_chn_0;
i2c39 = &i2c_riser1_chn_0;
/*
* I2C NVMe alias port
*/
@ -551,6 +563,58 @@ ocpslot_1_temp: temperature-sensor@1f {
reg = <0x1f>;
};
};
i2c_riser0: i2c@2 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0x2>;
i2c-mux@72 {
compatible = "nxp,pca9546";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x72>;
i2c-mux-idle-disconnect;
i2c_riser0_chn_0: i2c@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0x0>;
eeprom@50 {
compatible = "atmel,24c02";
reg = <0x50>;
pagesize = <16>;
};
};
};
};
i2c_riser1: i2c@3 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0x3>;
i2c-mux@72 {
compatible = "nxp,pca9546";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x72>;
i2c-mux-idle-disconnect;
i2c_riser1_chn_0: i2c@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0x0>;
eeprom@50 {
compatible = "atmel,24c02";
reg = <0x50>;
pagesize = <16>;
};
};
};
};
};
};