arch/arm/boot/dts/aspeed-bmc-facebook-cmm.dts

   1 // SPDX-License-Identifier: GPL-2.0+
   2 // Copyright (c) 2018 Facebook Inc.
   3 /dts-v1/;
   4
   5 #include "ast2500-facebook-netbmc-common.dtsi"
   6
   7 / {
   8         model = "Facebook Backpack CMM BMC";
   9         compatible = "facebook,cmm-bmc", "aspeed,ast2500";
  10
  11         aliases {
  12                 /*
  13                  * Override the default uart aliases to avoid breaking
  14                  * the legacy applications.
  15                  */
  16                 serial0 = &uart5;
  17                 serial1 = &uart1;
  18                 serial2 = &uart3;
  19                 serial3 = &uart4;
  20
  21                 /*
  22                  * Hardcode the bus number of i2c switches' channels to
  23                  * avoid breaking the legacy applications.
  24                  */
  25                 i2c16 = &imux16;
  26                 i2c17 = &imux17;
  27                 i2c18 = &imux18;
  28                 i2c19 = &imux19;
  29                 i2c20 = &imux20;
  30                 i2c21 = &imux21;
  31                 i2c22 = &imux22;
  32                 i2c23 = &imux23;
  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                 i2c32 = &imux32;
  42                 i2c33 = &imux33;
  43                 i2c34 = &imux34;
  44                 i2c35 = &imux35;
  45                 i2c36 = &imux36;
  46                 i2c37 = &imux37;
  47                 i2c38 = &imux38;
  48                 i2c39 = &imux39;
  49         };
  50
  51         chosen {
  52                 stdout-path = &uart1;
  53                 bootargs = "console=ttyS1,9600n8 root=/dev/ram rw earlyprintk";
  54         };
  55
  56         ast-adc-hwmon {
  57                 compatible = "iio-hwmon";
  58                 io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>,
  59                               <&adc 4>, <&adc 5>, <&adc 6>, <&adc 7>;
  60         };
  61 };
  62
  63 &uart1 {
  64         pinctrl-0 = <&pinctrl_txd1_default
  65                      &pinctrl_rxd1_default
  66                      &pinctrl_ncts1_default
  67                      &pinctrl_ndcd1_default
  68                      &pinctrl_ndsr1_default
  69                      &pinctrl_ndtr1_default
  70                      &pinctrl_nrts1_default>;
  71 };
  72
  73 &uart3 {
  74         pinctrl-0 = <&pinctrl_txd3_default
  75                      &pinctrl_rxd3_default
  76                      &pinctrl_ncts3_default
  77                      &pinctrl_ndcd3_default
  78                      &pinctrl_nri3_default>;
  79 };
  80
  81 &uart4 {
  82         status = "okay";
  83         pinctrl-names = "default";
  84         pinctrl-0 = <&pinctrl_txd4_default
  85                      &pinctrl_rxd4_default>;
  86 };
  87
  88 /*
  89  * I2C bus reserved for communication with COM-E.
  90  */
  91 &i2c0 {
  92         status = "okay";
  93 };
  94
  95 /*
  96  * I2C bus to Line Cards and Fabric Cards.
  97  */
  98 &i2c1 {
  99         status = "okay";
 100
 101         i2c-switch@77 {
 102                 compatible = "nxp,pca9548";
 103                 #address-cells = <1>;
 104                 #size-cells = <0>;
 105                 reg = <0x77>;
 106
 107                 imux16: i2c@0 {
 108                         #address-cells = <1>;
 109                         #size-cells = <0>;
 110                         reg = <0>;
 111                 };
 112
 113                 imux17: i2c@1 {
 114                         #address-cells = <1>;
 115                         #size-cells = <0>;
 116                         reg = <1>;
 117                 };
 118
 119                 imux18: i2c@2 {
 120                         #address-cells = <1>;
 121                         #size-cells = <0>;
 122                         reg = <2>;
 123                 };
 124
 125                 imux19: i2c@3 {
 126                         #address-cells = <1>;
 127                         #size-cells = <0>;
 128                         reg = <3>;
 129                 };
 130
 131                 imux20: i2c@4 {
 132                         #address-cells = <1>;
 133                         #size-cells = <0>;
 134                         reg = <4>;
 135                 };
 136
 137                 imux21: i2c@5 {
 138                         #address-cells = <1>;
 139                         #size-cells = <0>;
 140                         reg = <5>;
 141                 };
 142
 143                 imux22: i2c@6 {
 144                         #address-cells = <1>;
 145                         #size-cells = <0>;
 146                         reg = <6>;
 147                 };
 148
 149                 imux23: i2c@7 {
 150                         #address-cells = <1>;
 151                         #size-cells = <0>;
 152                         reg = <7>;
 153                 };
 154         };
 155 };
 156
 157 /*
 158  * I2C bus to Power Distribution Board.
 159  */
 160 &i2c2 {
 161         status = "okay";
 162
 163         i2c-switch@71 {
 164                 compatible = "nxp,pca9548";
 165                 #address-cells = <1>;
 166                 #size-cells = <0>;
 167                 reg = <0x71>;
 168
 169                 imux24: i2c@0 {
 170                         #address-cells = <1>;
 171                         #size-cells = <0>;
 172                         reg = <0>;
 173                 };
 174
 175                 imux25: i2c@1 {
 176                         #address-cells = <1>;
 177                         #size-cells = <0>;
 178                         reg = <1>;
 179                 };
 180
 181                 imux26: i2c@2 {
 182                         #address-cells = <1>;
 183                         #size-cells = <0>;
 184                         reg = <2>;
 185                 };
 186
 187                 imux27: i2c@3 {
 188                         #address-cells = <1>;
 189                         #size-cells = <0>;
 190                         reg = <3>;
 191                 };
 192
 193                 imux28: i2c@4 {
 194                         #address-cells = <1>;
 195                         #size-cells = <0>;
 196                         reg = <4>;
 197                 };
 198
 199                 imux29: i2c@5 {
 200                         #address-cells = <1>;
 201                         #size-cells = <0>;
 202                         reg = <5>;
 203                 };
 204
 205                 imux30: i2c@6 {
 206                         #address-cells = <1>;
 207                         #size-cells = <0>;
 208                         reg = <6>;
 209                 };
 210
 211                 imux31: i2c@7 {
 212                         #address-cells = <1>;
 213                         #size-cells = <0>;
 214                         reg = <7>;
 215                 };
 216         };
 217 };
 218
 219 /*
 220  * I2c bus connected with temperature sensors on CMM.
 221  */
 222 &i2c3 {
 223         status = "okay";
 224 };
 225
 226 /*
 227  * I2C bus reserved for communication with COM-E.
 228  */
 229 &i2c4 {
 230         status = "okay";
 231 };
 232
 233 /*
 234  * I2c bus connected with ADM1278.
 235  */
 236 &i2c5 {
 237         status = "okay";
 238 };
 239
 240 /*
 241  * I2c bus connected with I/O Expander.
 242  */
 243 &i2c6 {
 244         status = "okay";
 245 };
 246
 247 /*
 248  * I2c bus connected with I/O Expander and EPROMs.
 249  */
 250 &i2c7 {
 251         status = "okay";
 252 };
 253
 254 /*
 255  * I2C bus to Fan Control Board.
 256  */
 257 &i2c8 {
 258         status = "okay";
 259
 260         i2c-switch@77 {
 261                 compatible = "nxp,pca9548";
 262                 #address-cells = <1>;
 263                 #size-cells = <0>;
 264                 reg = <0x77>;
 265
 266                 imux32: i2c@0 {
 267                         #address-cells = <1>;
 268                         #size-cells = <0>;
 269                         reg = <0>;
 270                 };
 271
 272                 imux33: i2c@1 {
 273                         #address-cells = <1>;
 274                         #size-cells = <0>;
 275                         reg = <1>;
 276                 };
 277
 278                 imux34: i2c@2 {
 279                         #address-cells = <1>;
 280                         #size-cells = <0>;
 281                         reg = <2>;
 282                 };
 283
 284                 imux35: i2c@3 {
 285                         #address-cells = <1>;
 286                         #size-cells = <0>;
 287                         reg = <3>;
 288                 };
 289
 290                 imux36: i2c@4 {
 291                         #address-cells = <1>;
 292                         #size-cells = <0>;
 293                         reg = <4>;
 294                 };
 295
 296                 imux37: i2c@5 {
 297                         #address-cells = <1>;
 298                         #size-cells = <0>;
 299                         reg = <5>;
 300                 };
 301
 302                 imux38: i2c@6 {
 303                         #address-cells = <1>;
 304                         #size-cells = <0>;
 305                         reg = <6>;
 306                 };
 307
 308                 imux39: i2c@7 {
 309                         #address-cells = <1>;
 310                         #size-cells = <0>;
 311                         reg = <7>;
 312                 };
 313         };
 314 };
 315
 316 /*
 317  * I2C bus to CMM CPLD.
 318  */
 319 &i2c13 {
 320         status = "okay";
 321 };
 322
 323 &adc {
 324         status = "okay";
 325 };
 326
 327 &ehci0 {
 328         status = "okay";
 329 };
 330
 331 &ehci1 {
 332         status = "okay";
 333 };
 334
 335 &vhub {
 336         status = "disabled";
 337 };
 338
 339 &sdhci0 {
 340         status = "okay";
 341
 342         pinctrl-names = "default";
 343         pinctrl-0 = <&pinctrl_sd1_default>;
 344 };
 345
 346 &sdhci1 {
 347         status = "disabled";
 348 };