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- // 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;
- };
- };
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