diff options
Diffstat (limited to 'arch/arm/boot/dts/aspeed-bmc-facebook-elbert.dts')
| -rw-r--r-- | arch/arm/boot/dts/aspeed-bmc-facebook-elbert.dts | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-elbert.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-elbert.dts new file mode 100644 index 000000000..8e1a1d1b2 --- /dev/null +++ b/arch/arm/boot/dts/aspeed-bmc-facebook-elbert.dts @@ -0,0 +1,203 @@ +// SPDX-License-Identifier: GPL-2.0+ +// Copyright (c) 2020 Facebook Inc. + +/dts-v1/; + +#include "ast2600-facebook-netbmc-common.dtsi" + +/ { + model = "Facebook Elbert BMC"; + compatible = "facebook,elbert-bmc", "aspeed,ast2600"; + + aliases { + serial0 = &uart5; + serial1 = &uart1; + serial2 = &uart2; + serial3 = &uart3; + + /* + * 8 child channels of PCA9548 2-0075. + */ + i2c16 = &imux16; + i2c17 = &imux17; + i2c18 = &imux18; + i2c19 = &imux19; + i2c20 = &imux20; + i2c21 = &imux21; + i2c22 = &imux22; + i2c23 = &imux23; + + /* + * 8 child channels of PCA9548 5-0075. + */ + i2c24 = &imux24; + i2c25 = &imux25; + i2c26 = &imux26; + i2c27 = &imux27; + i2c28 = &imux28; + i2c29 = &imux29; + i2c30 = &imux30; + i2c31 = &imux31; + }; + + chosen { + stdout-path = &uart5; + }; + + spi_gpio: spi-gpio { + num-chipselects = <1>; + cs-gpios = <&gpio0 ASPEED_GPIO(X, 0) GPIO_ACTIVE_LOW>; + }; +}; + +&lpc_ctrl { + status = "okay"; +}; + +&kcs2 { + status = "okay"; + aspeed,lpc-io-reg = <0xca8>; +}; + +&kcs3 { + status = "okay"; + aspeed,lpc-io-reg = <0xca2>; +}; + +&i2c2 { + i2c-switch@75 { + compatible = "nxp,pca9548"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x75>; + i2c-mux-idle-disconnect; + + imux16: i2c@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + }; + + imux17: i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + }; + + imux18: i2c@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + }; + + imux19: i2c@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <3>; + }; + + imux20: i2c@4 { + #address-cells = <1>; + #size-cells = <0>; + reg = <4>; + }; + + imux21: i2c@5 { + #address-cells = <1>; + #size-cells = <0>; + reg = <5>; + }; + + imux22: i2c@6 { + #address-cells = <1>; + #size-cells = <0>; + reg = <6>; + }; + + imux23: i2c@7 { + #address-cells = <1>; + #size-cells = <0>; + reg = <7>; + }; + }; +}; + +&i2c5 { + i2c-switch@75 { + compatible = "nxp,pca9548"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x75>; + i2c-mux-idle-disconnect; + + imux24: i2c@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + }; + + imux25: i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + }; + + imux26: i2c@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + }; + + imux27: i2c@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <3>; + }; + + imux28: i2c@4 { + #address-cells = <1>; + #size-cells = <0>; + reg = <4>; + }; + + imux29: i2c@5 { + #address-cells = <1>; + #size-cells = <0>; + reg = <5>; + }; + + imux30: i2c@6 { + #address-cells = <1>; + #size-cells = <0>; + reg = <6>; + }; + + imux31: i2c@7 { + #address-cells = <1>; + #size-cells = <0>; + reg = <7>; + }; + }; +}; + +&i2c11 { + status = "okay"; +}; + +/* + * BMC's "mac3" controller is connected to BCM53134P's IMP_RGMII port + * directly (fixed link, no PHY in between). + * Note: BMC's "mdio0" controller is connected to BCM53134P's MDIO + * interface, and the MDIO channel will be enabled in dts later, when + * BCM53134 is added to "bcm53xx" DSA driver. + */ +&mac3 { + status = "okay"; + phy-mode = "rgmii"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_rgmii4_default>; + fixed-link { + speed = <1000>; + full-duplex; + }; +}; |