diff options
| author | Chanh Nguyen <chanh@os.amperecomputing.com> | 2024-08-06 07:18:04 +0000 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2024-08-22 13:07:14 +0930 |
| commit | 0aa7ca5e8fb36c03abf1cbb3bf9358e4d079b7db (patch) | |
| tree | 7753a086302d47b84d152b2fb3fbbed5337ccabb | |
| parent | f90607680b36df0751119304371d91b21b7fa952 (diff) | |
ARM: dts: aspeed: mtmitchell: Add Riser cards
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>
| -rw-r--r-- | arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts index 1679911e4fd8..4d2f6e5348ce 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts @@ -30,6 +30,18 @@ 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 */ i2c100 = &backplane_0; @@ -551,6 +563,58 @@ 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>; + }; + }; + }; + }; }; }; |