am437x-idk-evm.dts

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    1 // SPDX-License-Identifier: GPL-2.0-only
    2 /*
    3  * Copyright (C) 2014 Texas Instruments Incorporated - https://www.ti.com/
    4  */
    5 
    6 /dts-v1/;
    7 
    8 #include "am4372.dtsi"
    9 #include <dt-bindings/pinctrl/am43xx.h>
   10 #include <dt-bindings/pwm/pwm.h>
   11 #include <dt-bindings/gpio/gpio.h>
   12 #include <dt-bindings/input/input.h>
   13 
   14 / {
   15         model = "TI AM437x Industrial Development Kit";
   16         compatible = "ti,am437x-idk-evm","ti,am4372","ti,am43";
   17 
   18         chosen {
   19                 stdout-path = &uart0;
   20         };
   21 
   22         v24_0d: fixed-regulator-v24_0d {
   23                 compatible = "regulator-fixed";
   24                 regulator-name = "V24_0D";
   25                 regulator-min-microvolt = <24000000>;
   26                 regulator-max-microvolt = <24000000>;
   27                 regulator-always-on;
   28                 regulator-boot-on;
   29         };
   30 
   31         v3_3d: fixed-regulator-v3_3d {
   32                 compatible = "regulator-fixed";
   33                 regulator-name = "V3_3D";
   34                 regulator-min-microvolt = <3300000>;
   35                 regulator-max-microvolt = <3300000>;
   36                 regulator-always-on;
   37                 regulator-boot-on;
   38                 vin-supply = <&v24_0d>;
   39         };
   40 
   41         vdd_corereg: fixed-regulator-vdd_corereg {
   42                 compatible = "regulator-fixed";
   43                 regulator-name = "VDD_COREREG";
   44                 regulator-min-microvolt = <1100000>;
   45                 regulator-max-microvolt = <1100000>;
   46                 regulator-always-on;
   47                 regulator-boot-on;
   48                 vin-supply = <&v24_0d>;
   49         };
   50 
   51         vdd_core: fixed-regulator-vdd_core {
   52                 compatible = "regulator-fixed";
   53                 regulator-name = "VDD_CORE";
   54                 regulator-min-microvolt = <1100000>;
   55                 regulator-max-microvolt = <1100000>;
   56                 regulator-always-on;
   57                 regulator-boot-on;
   58                 vin-supply = <&vdd_corereg>;
   59         };
   60 
   61         v1_8dreg: fixed-regulator-v1_8dreg{
   62                 compatible = "regulator-fixed";
   63                 regulator-name = "V1_8DREG";
   64                 regulator-min-microvolt = <1800000>;
   65                 regulator-max-microvolt = <1800000>;
   66                 regulator-always-on;
   67                 regulator-boot-on;
   68                 vin-supply = <&v24_0d>;
   69         };
   70 
   71         v1_8d: fixed-regulator-v1_8d{
   72                 compatible = "regulator-fixed";
   73                 regulator-name = "V1_8D";
   74                 regulator-min-microvolt = <1800000>;
   75                 regulator-max-microvolt = <1800000>;
   76                 regulator-always-on;
   77                 regulator-boot-on;
   78                 vin-supply = <&v1_8dreg>;
   79         };
   80 
   81         v1_5dreg: fixed-regulator-v1_5dreg{
   82                 compatible = "regulator-fixed";
   83                 regulator-name = "V1_5DREG";
   84                 regulator-min-microvolt = <1500000>;
   85                 regulator-max-microvolt = <1500000>;
   86                 regulator-always-on;
   87                 regulator-boot-on;
   88                 vin-supply = <&v24_0d>;
   89         };
   90 
   91         v1_5d: fixed-regulator-v1_5d{
   92                 compatible = "regulator-fixed";
   93                 regulator-name = "V1_5D";
   94                 regulator-min-microvolt = <1500000>;
   95                 regulator-max-microvolt = <1500000>;
   96                 regulator-always-on;
   97                 regulator-boot-on;
   98                 vin-supply = <&v1_5dreg>;
   99         };
  100 
  101         gpio_keys: gpio-keys {
  102                 compatible = "gpio-keys";
  103                 pinctrl-names = "default";
  104                 pinctrl-0 = <&gpio_keys_pins_default>;
  105 
  106                 switch-0 {
  107                         label = "power-button";
  108                         linux,code = <KEY_POWER>;
  109                         gpios = <&gpio4 2 GPIO_ACTIVE_LOW>;
  110                 };
  111         };
  112 
  113         /* fixed 32k external oscillator clock */
  114         clk_32k_rtc: clk_32k_rtc {
  115                 #clock-cells = <0>;
  116                 compatible = "fixed-clock";
  117                 clock-frequency = <32768>;
  118         };
  119 
  120         leds-iio {
  121                 status = "disabled";
  122                 compatible = "gpio-leds";
  123                 led-out0 {
  124                         label = "out0";
  125                         gpios = <&tpic2810 0 GPIO_ACTIVE_HIGH>;
  126                         default-state = "off";
  127                 };
  128 
  129                 led-out1 {
  130                         label = "out1";
  131                         gpios = <&tpic2810 1 GPIO_ACTIVE_HIGH>;
  132                         default-state = "off";
  133                 };
  134 
  135                 led-out2 {
  136                         label = "out2";
  137                         gpios = <&tpic2810 2 GPIO_ACTIVE_HIGH>;
  138                         default-state = "off";
  139                 };
  140 
  141                 led-out3 {
  142                         label = "out3";
  143                         gpios = <&tpic2810 3 GPIO_ACTIVE_HIGH>;
  144                         default-state = "off";
  145                 };
  146 
  147                 led-out4 {
  148                         label = "out4";
  149                         gpios = <&tpic2810 4 GPIO_ACTIVE_HIGH>;
  150                         default-state = "off";
  151                 };
  152 
  153                 led-out5 {
  154                         label = "out5";
  155                         gpios = <&tpic2810 5 GPIO_ACTIVE_HIGH>;
  156                         default-state = "off";
  157                 };
  158 
  159                 led-out6 {
  160                         label = "out6";
  161                         gpios = <&tpic2810 6 GPIO_ACTIVE_HIGH>;
  162                         default-state = "off";
  163                 };
  164 
  165                 led-out7 {
  166                         label = "out7";
  167                         gpios = <&tpic2810 7 GPIO_ACTIVE_HIGH>;
  168                         default-state = "off";
  169                 };
  170         };
  171 };
  172 
  173 &am43xx_pinmux {
  174         gpio_keys_pins_default: gpio_keys_pins_default {
  175                 pinctrl-single,pins = <
  176                         AM4372_IOPAD(0x9b8, PIN_INPUT | MUX_MODE7)      /* cam0_field.gpio4_2 */
  177                 >;
  178         };
  179 
  180         i2c0_pins_default: i2c0_pins_default {
  181                 pinctrl-single,pins = <
  182                         AM4372_IOPAD(0x988, PIN_INPUT | SLEWCTRL_FAST | MUX_MODE0) /* i2c0_sda.i2c0_sda */
  183                         AM4372_IOPAD(0x98c, PIN_INPUT | SLEWCTRL_FAST | MUX_MODE0) /* i2c0_scl.i2c0_scl */
  184                 >;
  185         };
  186 
  187         i2c0_pins_sleep: i2c0_pins_sleep {
  188                 pinctrl-single,pins = <
  189                         AM4372_IOPAD(0x988, PIN_INPUT_PULLDOWN | MUX_MODE7)
  190                         AM4372_IOPAD(0x98c, PIN_INPUT_PULLDOWN | MUX_MODE7)
  191                 >;
  192         };
  193 
  194         i2c2_pins_default: i2c2_pins_default {
  195                 pinctrl-single,pins = <
  196                         AM4372_IOPAD(0x9e8, PIN_INPUT | SLEWCTRL_FAST | MUX_MODE3) /* cam1_data1.i2c2_scl */
  197                         AM4372_IOPAD(0x9ec, PIN_INPUT | SLEWCTRL_FAST | MUX_MODE3) /* cam1_data0.i2c2_sda */
  198                 >;
  199         };
  200 
  201         i2c2_pins_sleep: i2c2_pins_sleep {
  202                 pinctrl-single,pins = <
  203                         AM4372_IOPAD(0x9e8, PIN_INPUT_PULLDOWN | MUX_MODE7)
  204                         AM4372_IOPAD(0x9ec, PIN_INPUT_PULLDOWN | MUX_MODE7)
  205                 >;
  206         };
  207 
  208         mmc1_pins_default: pinmux_mmc1_pins_default {
  209                 pinctrl-single,pins = <
  210                         AM4372_IOPAD(0x900, PIN_INPUT | MUX_MODE0) /* mmc0_clk.mmc0_clk */
  211                         AM4372_IOPAD(0x904, PIN_INPUT | MUX_MODE0) /* mmc0_cmd.mmc0_cmd */
  212                         AM4372_IOPAD(0x9f0, PIN_INPUT | MUX_MODE0) /* mmc0_dat3.mmc0_dat3 */
  213                         AM4372_IOPAD(0x9f4, PIN_INPUT | MUX_MODE0) /* mmc0_dat2.mmc0_dat2 */
  214                         AM4372_IOPAD(0x9f8, PIN_INPUT | MUX_MODE0) /* mmc0_dat1.mmc0_dat1 */
  215                         AM4372_IOPAD(0x9fc, PIN_INPUT | MUX_MODE0) /* mmc0_dat0.mmc0_dat0 */
  216                         AM4372_IOPAD(0x960, PIN_INPUT | MUX_MODE7) /* spi0_cs1.gpio0_6 */
  217                 >;
  218         };
  219 
  220         mmc1_pins_sleep: pinmux_mmc1_pins_sleep {
  221                 pinctrl-single,pins = <
  222                         AM4372_IOPAD(0x900, PIN_INPUT_PULLDOWN | MUX_MODE7)
  223                         AM4372_IOPAD(0x904, PIN_INPUT_PULLDOWN | MUX_MODE7)
  224                         AM4372_IOPAD(0x9f0, PIN_INPUT_PULLDOWN | MUX_MODE7)
  225                         AM4372_IOPAD(0x9f4, PIN_INPUT_PULLDOWN | MUX_MODE7)
  226                         AM4372_IOPAD(0x9f8, PIN_INPUT_PULLDOWN | MUX_MODE7)
  227                         AM4372_IOPAD(0x9fc, PIN_INPUT_PULLDOWN | MUX_MODE7)
  228                         AM4372_IOPAD(0x960, PIN_INPUT_PULLDOWN | MUX_MODE7)
  229                 >;
  230         };
  231 
  232         spi1_pins_default: spi1_pins_default {
  233                 pinctrl-single,pins = <
  234                         AM4372_IOPAD(0x908, PIN_INPUT | MUX_MODE2)      /* mii1_col.spi1_sclk */
  235                         AM4372_IOPAD(0x910, PIN_INPUT | MUX_MODE2)      /* mii1_rx_er.spi1_d1 */
  236                         AM4372_IOPAD(0x944, PIN_OUTPUT | MUX_MODE2)     /* rmii1_ref_clk.spi1_cs0 */
  237                         AM4372_IOPAD(0x90c, PIN_OUTPUT | MUX_MODE7)     /* mii1_crs.gpio3_1 */
  238                 >;
  239         };
  240 
  241         spi1_pins_sleep: spi1_pins_sleep {
  242                 pinctrl-single,pins = <
  243                         AM4372_IOPAD(0x908, PIN_INPUT_PULLDOWN | MUX_MODE7)
  244                         AM4372_IOPAD(0x910, PIN_INPUT_PULLDOWN | MUX_MODE7)
  245                         AM4372_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE7)
  246                         AM4372_IOPAD(0x90c, PIN_INPUT_PULLDOWN | MUX_MODE7)
  247                 >;
  248         };
  249 
  250         ecap0_pins_default: backlight_pins_default {
  251                 pinctrl-single,pins = <
  252                         AM4372_IOPAD(0x964, PIN_OUTPUT | MUX_MODE0) /* ecap0_in_pwm0_out.ecap0_in_pwm0_out */
  253                 >;
  254         };
  255 
  256         cpsw_default: cpsw_default {
  257                 pinctrl-single,pins = <
  258                         AM4372_IOPAD(0x92c, PIN_OUTPUT_PULLDOWN | MUX_MODE2)    /* mii1_txclk.rgmii1_tclk */
  259                         AM4372_IOPAD(0x914, PIN_OUTPUT_PULLDOWN | MUX_MODE2)    /* mii1_txen.rgmii1_tctl */
  260                         AM4372_IOPAD(0x928, PIN_OUTPUT_PULLDOWN | MUX_MODE2)    /* mii1_txd0.rgmii1_td0 */
  261                         AM4372_IOPAD(0x924, PIN_OUTPUT_PULLDOWN | MUX_MODE2)    /* mii1_txd1.rgmii1_td1 */
  262                         AM4372_IOPAD(0x920, PIN_OUTPUT_PULLDOWN | MUX_MODE2)    /* mii1_txd0.rgmii1_td2 */
  263                         AM4372_IOPAD(0x91c, PIN_OUTPUT_PULLDOWN | MUX_MODE2)    /* mii1_txd1.rgmii1_td3 */
  264                         AM4372_IOPAD(0x930, PIN_INPUT_PULLDOWN | MUX_MODE2)     /* mii1_rxclk.rmii1_rclk */
  265                         AM4372_IOPAD(0x918, PIN_INPUT_PULLDOWN | MUX_MODE2)     /* mii1_rxdv.rgmii1_rctl */
  266                         AM4372_IOPAD(0x940, PIN_INPUT_PULLDOWN | MUX_MODE2)     /* mii1_rxd0.rgmii1_rd0 */
  267                         AM4372_IOPAD(0x93c, PIN_INPUT_PULLDOWN | MUX_MODE2)     /* mii1_rxd1.rgmii1_rd1 */
  268                         AM4372_IOPAD(0x938, PIN_INPUT_PULLDOWN | MUX_MODE2)     /* mii1_rxd0.rgmii1_rd2 */
  269                         AM4372_IOPAD(0x934, PIN_INPUT_PULLDOWN | MUX_MODE2)     /* mii1_rxd1.rgmii1_rd3 */
  270                 >;
  271         };
  272 
  273         cpsw_sleep: cpsw_sleep {
  274                 pinctrl-single,pins = <
  275                         AM4372_IOPAD(0x92c, PIN_INPUT_PULLDOWN | MUX_MODE7)
  276                         AM4372_IOPAD(0x914, PIN_INPUT_PULLDOWN | MUX_MODE7)
  277                         AM4372_IOPAD(0x928, PIN_INPUT_PULLDOWN | MUX_MODE7)
  278                         AM4372_IOPAD(0x924, PIN_INPUT_PULLDOWN | MUX_MODE7)
  279                         AM4372_IOPAD(0x920, PIN_INPUT_PULLDOWN | MUX_MODE7)
  280                         AM4372_IOPAD(0x91c, PIN_INPUT_PULLDOWN | MUX_MODE7)
  281                         AM4372_IOPAD(0x930, PIN_INPUT_PULLDOWN | MUX_MODE7)
  282                         AM4372_IOPAD(0x918, PIN_INPUT_PULLDOWN | MUX_MODE7)
  283                         AM4372_IOPAD(0x940, PIN_INPUT_PULLDOWN | MUX_MODE7)
  284                         AM4372_IOPAD(0x93c, PIN_INPUT_PULLDOWN | MUX_MODE7)
  285                         AM4372_IOPAD(0x938, PIN_INPUT_PULLDOWN | MUX_MODE7)
  286                         AM4372_IOPAD(0x934, PIN_INPUT_PULLDOWN | MUX_MODE7)
  287                 >;
  288         };
  289 
  290         davinci_mdio_default: davinci_mdio_default {
  291                 pinctrl-single,pins = <
  292                         /* MDIO */
  293                         AM4372_IOPAD(0x948, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)       /* mdio_data.mdio_data */
  294                         AM4372_IOPAD(0x94c, PIN_OUTPUT_PULLUP | MUX_MODE0)                      /* mdio_clk.mdio_clk */
  295                 >;
  296         };
  297 
  298         davinci_mdio_sleep: davinci_mdio_sleep {
  299                 pinctrl-single,pins = <
  300                         /* MDIO reset value */
  301                         AM4372_IOPAD(0x948, PIN_INPUT_PULLDOWN | MUX_MODE7)
  302                         AM4372_IOPAD(0x94c, PIN_INPUT_PULLDOWN | MUX_MODE7)
  303                 >;
  304         };
  305 
  306         qspi_pins_default: qspi_pins_default {
  307                 pinctrl-single,pins = <
  308                         AM4372_IOPAD(0x87c, PIN_OUTPUT_PULLUP | MUX_MODE3)      /* gpmc_csn0.qspi_csn */
  309                         AM4372_IOPAD(0x888, PIN_OUTPUT | MUX_MODE2)             /* gpmc_csn3.qspi_clk */
  310                         AM4372_IOPAD(0x890, PIN_INPUT_PULLUP | MUX_MODE3)       /* gpmc_advn_ale.qspi_d0 */
  311                         AM4372_IOPAD(0x894, PIN_INPUT_PULLUP | MUX_MODE3)       /* gpmc_oen_ren.qspi_d1 */
  312                         AM4372_IOPAD(0x898, PIN_INPUT_PULLUP | MUX_MODE3)       /* gpmc_wen.qspi_d2 */
  313                         AM4372_IOPAD(0x89c, PIN_INPUT_PULLUP | MUX_MODE3)       /* gpmc_be0n_cle.qspi_d3 */
  314                 >;
  315         };
  316 
  317         qspi_pins_sleep: qspi_pins_sleep{
  318                 pinctrl-single,pins = <
  319                         AM4372_IOPAD(0x87c, PIN_INPUT_PULLDOWN | MUX_MODE7)
  320                         AM4372_IOPAD(0x888, PIN_INPUT_PULLDOWN | MUX_MODE7)
  321                         AM4372_IOPAD(0x890, PIN_INPUT_PULLDOWN | MUX_MODE7)
  322                         AM4372_IOPAD(0x894, PIN_INPUT_PULLDOWN | MUX_MODE7)
  323                         AM4372_IOPAD(0x898, PIN_INPUT_PULLDOWN | MUX_MODE7)
  324                         AM4372_IOPAD(0x89c, PIN_INPUT_PULLDOWN | MUX_MODE7)
  325                 >;
  326         };
  327 };
  328 
  329 &i2c0 {
  330         status = "okay";
  331         pinctrl-names = "default", "sleep";
  332         pinctrl-0 = <&i2c0_pins_default>;
  333         pinctrl-1 = <&i2c0_pins_sleep>;
  334         clock-frequency = <400000>;
  335 
  336         at24@50 {
  337                 compatible = "atmel,24c256";
  338                 pagesize = <64>;
  339                 reg = <0x50>;
  340         };
  341 
  342         tps: tps62362@60 {
  343                 compatible = "ti,tps62362";
  344                 reg = <0x60>;
  345                 regulator-name = "VDD_MPU";
  346                 regulator-min-microvolt = <950000>;
  347                 regulator-max-microvolt = <1330000>;
  348                 regulator-boot-on;
  349                 regulator-always-on;
  350                 ti,vsel0-state-high;
  351                 ti,vsel1-state-high;
  352                 vin-supply = <&v3_3d>;
  353         };
  354 };
  355 
  356 &i2c2 {
  357         status = "okay";
  358         pinctrl-names = "default", "sleep";
  359         pinctrl-0 = <&i2c2_pins_default>;
  360         pinctrl-1 = <&i2c2_pins_sleep>;
  361         clock-frequency = <100000>;
  362 
  363         tpic2810: tpic2810@60 {
  364                 compatible = "ti,tpic2810";
  365                 reg = <0x60>;
  366                 gpio-controller;
  367                 #gpio-cells = <2>;
  368         };
  369 };
  370 
  371 &spi1 {
  372         status = "okay";
  373         pinctrl-names = "default", "sleep";
  374         pinctrl-0 = <&spi1_pins_default>;
  375         pinctrl-1 = <&spi1_pins_sleep>;
  376         ti,pindir-d0-out-d1-in;
  377 
  378         sn65hvs882: sn65hvs882@0 {
  379                 compatible = "pisosr-gpio";
  380                 gpio-controller;
  381                 #gpio-cells = <2>;
  382 
  383                 load-gpios = <&gpio3 1 GPIO_ACTIVE_LOW>;
  384 
  385                 reg = <0>;
  386                 spi-max-frequency = <1000000>;
  387                 spi-cpol;
  388         };
  389 };
  390 
  391 &epwmss0 {
  392         status = "okay";
  393 };
  394 
  395 &ecap0 {
  396         status = "okay";
  397         pinctrl-names = "default";
  398         pinctrl-0 = <&ecap0_pins_default>;
  399 };
  400 
  401 &gpio0 {
  402         status = "okay";
  403 };
  404 
  405 &gpio1 {
  406         status = "okay";
  407 };
  408 
  409 &gpio3 {
  410         status = "okay";
  411 };
  412 
  413 &gpio4 {
  414         status = "okay";
  415 };
  416 
  417 &gpio5 {
  418         status = "okay";
  419 };
  420 
  421 &mmc1 {
  422         status = "okay";
  423         pinctrl-names = "default", "sleep";
  424         pinctrl-0 = <&mmc1_pins_default>;
  425         pinctrl-1 = <&mmc1_pins_sleep>;
  426         vmmc-supply = <&v3_3d>;
  427         bus-width = <4>;
  428         cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
  429 };
  430 
  431 &qspi {
  432         status = "okay";
  433         pinctrl-names = "default", "sleep";
  434         pinctrl-0 = <&qspi_pins_default>;
  435         pinctrl-1 = <&qspi_pins_sleep>;
  436 
  437         spi-max-frequency = <48000000>;
  438         flash@0 {
  439                 compatible = "mx66l51235l";
  440                 spi-max-frequency = <48000000>;
  441                 reg = <0>;
  442                 spi-cpol;
  443                 spi-cpha;
  444                 spi-tx-bus-width = <1>;
  445                 spi-rx-bus-width = <4>;
  446                 #address-cells = <1>;
  447                 #size-cells = <1>;
  448 
  449                 /*
  450                  * MTD partition table.  The ROM checks the first 512KiB for a
  451                  * valid file to boot(XIP).
  452                  */
  453                 partition@0 {
  454                         label = "QSPI.U_BOOT";
  455                         reg = <0x00000000 0x000080000>;
  456                 };
  457                 partition@1 {
  458                         label = "QSPI.U_BOOT.backup";
  459                         reg = <0x00080000 0x00080000>;
  460                 };
  461                 partition@2 {
  462                         label = "QSPI.U-BOOT-SPL_OS";
  463                         reg = <0x00100000 0x00010000>;
  464                 };
  465                 partition@3 {
  466                         label = "QSPI.U_BOOT_ENV";
  467                         reg = <0x00110000 0x00010000>;
  468                 };
  469                 partition@4 {
  470                         label = "QSPI.U-BOOT-ENV.backup";
  471                         reg = <0x00120000 0x00010000>;
  472                 };
  473                 partition@5 {
  474                         label = "QSPI.KERNEL";
  475                         reg = <0x00130000 0x0800000>;
  476                 };
  477                 partition@6 {
  478                         label = "QSPI.FILESYSTEM";
  479                         reg = <0x00930000 0x36D0000>;
  480                 };
  481         };
  482 };
  483 
  484 &mac_sw {
  485         pinctrl-names = "default", "sleep";
  486         pinctrl-0 = <&cpsw_default>;
  487         pinctrl-1 = <&cpsw_sleep>;
  488         status = "okay";
  489 };
  490 
  491 &davinci_mdio_sw {
  492         pinctrl-names = "default", "sleep";
  493         pinctrl-0 = <&davinci_mdio_default>;
  494         pinctrl-1 = <&davinci_mdio_sleep>;
  495 
  496         ethphy0: ethernet-phy@0 {
  497                 reg = <0>;
  498         };
  499 };
  500 
  501 &cpsw_port1 {
  502         phy-handle = <&ethphy0>;
  503         phy-mode = "rgmii-rxid";
  504         ti,dual-emac-pvid = <1>;
  505 };
  506 
  507 &cpsw_port2 {
  508         status = "disabled";
  509 };
  510 
  511 &rtc {
  512         clocks = <&clk_32k_rtc>, <&clk_32768_ck>;
  513         clock-names = "ext-clk", "int-clk";
  514         status = "okay";
  515 };
  516 
  517 &wdt {
  518         status = "okay";
  519 };
  520 
  521 &cpu {
  522         cpu0-supply = <&tps>;
  523 };
  524 
  525 &cpu0_opp_table {
  526         /*
  527          * Supply voltage supervisor on board will not allow opp50 so
  528          * disable it and set opp100 as suspend OPP.
  529          */
  530         opp50-300000000 {
  531                 status = "disabled";
  532         };
  533 
  534         opp100-600000000 {
  535                 opp-suspend;
  536         };
  537 };
  538 
  539 &pruss1_mdio {
  540         status = "disabled";
  541 };
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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/src/arm/am437x-idk-evm.dts

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/src/arm/am437x-idk-evm.dts
