The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/src/arm/aspeed-bmc-facebook-elbert.dts

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    1 // SPDX-License-Identifier: GPL-2.0+
    2 // Copyright (c) 2020 Facebook Inc.
    3 
    4 /dts-v1/;
    5 
    6 #include "ast2600-facebook-netbmc-common.dtsi"
    7 
    8 / {
    9         model = "Facebook Elbert BMC";
   10         compatible = "facebook,elbert-bmc", "aspeed,ast2600";
   11 
   12         aliases {
   13                 serial0 = &uart5;
   14                 serial1 = &uart1;
   15                 serial2 = &uart2;
   16                 serial3 = &uart3;
   17 
   18                 /*
   19                  * 8 child channels of PCA9548 2-0075.
   20                  */
   21                 i2c16 = &imux16;
   22                 i2c17 = &imux17;
   23                 i2c18 = &imux18;
   24                 i2c19 = &imux19;
   25                 i2c20 = &imux20;
   26                 i2c21 = &imux21;
   27                 i2c22 = &imux22;
   28                 i2c23 = &imux23;
   29 
   30                 /*
   31                  * 8 child channels of PCA9548 5-0075.
   32                  */
   33                 i2c24 = &imux24;
   34                 i2c25 = &imux25;
   35                 i2c26 = &imux26;
   36                 i2c27 = &imux27;
   37                 i2c28 = &imux28;
   38                 i2c29 = &imux29;
   39                 i2c30 = &imux30;
   40                 i2c31 = &imux31;
   41         };
   42 
   43         chosen {
   44                 stdout-path = &uart5;
   45         };
   46 
   47         spi_gpio: spi-gpio {
   48                 num-chipselects = <1>;
   49                 cs-gpios = <&gpio0 ASPEED_GPIO(X, 0) GPIO_ACTIVE_LOW>;
   50         };
   51 };
   52 
   53 &lpc_ctrl {
   54         status = "okay";
   55 };
   56 
   57 &kcs2 {
   58         status = "okay";
   59         aspeed,lpc-io-reg = <0xca8>;
   60 };
   61 
   62 &kcs3 {
   63         status = "okay";
   64         aspeed,lpc-io-reg = <0xca2>;
   65 };
   66 
   67 &i2c2 {
   68         i2c-switch@75 {
   69                 compatible = "nxp,pca9548";
   70                 #address-cells = <1>;
   71                 #size-cells = <0>;
   72                 reg = <0x75>;
   73                 i2c-mux-idle-disconnect;
   74 
   75                 imux16: i2c@0 {
   76                         #address-cells = <1>;
   77                         #size-cells = <0>;
   78                         reg = <0>;
   79                 };
   80 
   81                 imux17: i2c@1 {
   82                         #address-cells = <1>;
   83                         #size-cells = <0>;
   84                         reg = <1>;
   85                 };
   86 
   87                 imux18: i2c@2 {
   88                         #address-cells = <1>;
   89                         #size-cells = <0>;
   90                         reg = <2>;
   91                 };
   92 
   93                 imux19: i2c@3 {
   94                         #address-cells = <1>;
   95                         #size-cells = <0>;
   96                         reg = <3>;
   97                 };
   98 
   99                 imux20: i2c@4 {
  100                         #address-cells = <1>;
  101                         #size-cells = <0>;
  102                         reg = <4>;
  103                 };
  104 
  105                 imux21: i2c@5 {
  106                         #address-cells = <1>;
  107                         #size-cells = <0>;
  108                         reg = <5>;
  109                 };
  110 
  111                 imux22: i2c@6 {
  112                         #address-cells = <1>;
  113                         #size-cells = <0>;
  114                         reg = <6>;
  115                 };
  116 
  117                 imux23: i2c@7 {
  118                         #address-cells = <1>;
  119                         #size-cells = <0>;
  120                         reg = <7>;
  121                 };
  122         };
  123 };
  124 
  125 &i2c5 {
  126         i2c-switch@75 {
  127                 compatible = "nxp,pca9548";
  128                 #address-cells = <1>;
  129                 #size-cells = <0>;
  130                 reg = <0x75>;
  131                 i2c-mux-idle-disconnect;
  132 
  133                 imux24: i2c@0 {
  134                         #address-cells = <1>;
  135                         #size-cells = <0>;
  136                         reg = <0>;
  137                 };
  138 
  139                 imux25: i2c@1 {
  140                         #address-cells = <1>;
  141                         #size-cells = <0>;
  142                         reg = <1>;
  143                 };
  144 
  145                 imux26: i2c@2 {
  146                         #address-cells = <1>;
  147                         #size-cells = <0>;
  148                         reg = <2>;
  149                 };
  150 
  151                 imux27: i2c@3 {
  152                         #address-cells = <1>;
  153                         #size-cells = <0>;
  154                         reg = <3>;
  155                 };
  156 
  157                 imux28: i2c@4 {
  158                         #address-cells = <1>;
  159                         #size-cells = <0>;
  160                         reg = <4>;
  161                 };
  162 
  163                 imux29: i2c@5 {
  164                         #address-cells = <1>;
  165                         #size-cells = <0>;
  166                         reg = <5>;
  167                 };
  168 
  169                 imux30: i2c@6 {
  170                         #address-cells = <1>;
  171                         #size-cells = <0>;
  172                         reg = <6>;
  173                 };
  174 
  175                 imux31: i2c@7 {
  176                         #address-cells = <1>;
  177                         #size-cells = <0>;
  178                         reg = <7>;
  179                 };
  180         };
  181 };
  182 
  183 &i2c11 {
  184         status = "okay";
  185 };

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