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/arm64/freescale/imx8mn-ddr4-evk.dts

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    1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
    2 /*
    3  * Copyright 2019 NXP
    4  */
    5 
    6 /dts-v1/;
    7 
    8 #include "imx8mn.dtsi"
    9 #include "imx8mn-evk.dtsi"
   10 
   11 / {
   12         model = "NXP i.MX8MNano DDR4 EVK board";
   13         compatible = "fsl,imx8mn-ddr4-evk", "fsl,imx8mn";
   14 };
   15 
   16 &A53_0 {
   17         cpu-supply = <&buck2_reg>;
   18 };
   19 
   20 &A53_1 {
   21         cpu-supply = <&buck2_reg>;
   22 };
   23 
   24 &A53_2 {
   25         cpu-supply = <&buck2_reg>;
   26 };
   27 
   28 &A53_3 {
   29         cpu-supply = <&buck2_reg>;
   30 };
   31 
   32 &ddrc {
   33         operating-points-v2 = <&ddrc_opp_table>;
   34 
   35         ddrc_opp_table: opp-table {
   36                 compatible = "operating-points-v2";
   37 
   38                 opp-25M {
   39                         opp-hz = /bits/ 64 <25000000>;
   40                 };
   41 
   42                 opp-100M {
   43                         opp-hz = /bits/ 64 <100000000>;
   44                 };
   45 
   46                 opp-600M {
   47                         opp-hz = /bits/ 64 <600000000>;
   48                 };
   49         };
   50 };
   51 
   52 &i2c1 {
   53         pmic@4b {
   54                 compatible = "rohm,bd71847";
   55                 reg = <0x4b>;
   56                 pinctrl-names = "default";
   57                 pinctrl-0 = <&pinctrl_pmic>;
   58                 interrupt-parent = <&gpio1>;
   59                 interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
   60                 rohm,reset-snvs-powered;
   61 
   62                 #clock-cells = <0>;
   63                 clocks = <&osc_32k 0>;
   64                 clock-output-names = "clk-32k-out";
   65 
   66                 regulators {
   67                         buck1_reg: BUCK1 {
   68                                 regulator-name = "buck1";
   69                                 regulator-min-microvolt = <700000>;
   70                                 regulator-max-microvolt = <1300000>;
   71                                 regulator-boot-on;
   72                                 regulator-always-on;
   73                                 regulator-ramp-delay = <1250>;
   74                         };
   75 
   76                         buck2_reg: BUCK2 {
   77                                 regulator-name = "buck2";
   78                                 regulator-min-microvolt = <700000>;
   79                                 regulator-max-microvolt = <1300000>;
   80                                 regulator-boot-on;
   81                                 regulator-always-on;
   82                                 regulator-ramp-delay = <1250>;
   83                         };
   84 
   85                         buck3_reg: BUCK3 {
   86                                 // BUCK5 in datasheet
   87                                 regulator-name = "buck3";
   88                                 regulator-min-microvolt = <700000>;
   89                                 regulator-max-microvolt = <1350000>;
   90                         };
   91 
   92                         buck4_reg: BUCK4 {
   93                                 // BUCK6 in datasheet
   94                                 regulator-name = "buck4";
   95                                 regulator-min-microvolt = <3000000>;
   96                                 regulator-max-microvolt = <3300000>;
   97                                 regulator-boot-on;
   98                                 regulator-always-on;
   99                         };
  100 
  101                         buck5_reg: BUCK5 {
  102                                 // BUCK7 in datasheet
  103                                 regulator-name = "buck5";
  104                                 regulator-min-microvolt = <1605000>;
  105                                 regulator-max-microvolt = <1995000>;
  106                                 regulator-boot-on;
  107                                 regulator-always-on;
  108                         };
  109 
  110                         buck6_reg: BUCK6 {
  111                                 // BUCK8 in datasheet
  112                                 regulator-name = "buck6";
  113                                 regulator-min-microvolt = <800000>;
  114                                 regulator-max-microvolt = <1400000>;
  115                                 regulator-boot-on;
  116                                 regulator-always-on;
  117                         };
  118 
  119                         ldo1_reg: LDO1 {
  120                                 regulator-name = "ldo1";
  121                                 regulator-min-microvolt = <1600000>;
  122                                 regulator-max-microvolt = <3300000>;
  123                                 regulator-boot-on;
  124                                 regulator-always-on;
  125                         };
  126 
  127                         ldo2_reg: LDO2 {
  128                                 regulator-name = "ldo2";
  129                                 regulator-min-microvolt = <800000>;
  130                                 regulator-max-microvolt = <900000>;
  131                                 regulator-boot-on;
  132                                 regulator-always-on;
  133                         };
  134 
  135                         ldo3_reg: LDO3 {
  136                                 regulator-name = "ldo3";
  137                                 regulator-min-microvolt = <1800000>;
  138                                 regulator-max-microvolt = <3300000>;
  139                                 regulator-boot-on;
  140                                 regulator-always-on;
  141                         };
  142 
  143                         ldo4_reg: LDO4 {
  144                                 regulator-name = "ldo4";
  145                                 regulator-min-microvolt = <900000>;
  146                                 regulator-max-microvolt = <1800000>;
  147                                 regulator-boot-on;
  148                                 regulator-always-on;
  149                         };
  150 
  151                         ldo6_reg: LDO6 {
  152                                 regulator-name = "ldo6";
  153                                 regulator-min-microvolt = <900000>;
  154                                 regulator-max-microvolt = <1800000>;
  155                                 regulator-boot-on;
  156                                 regulator-always-on;
  157                         };
  158                 };
  159         };
  160 };

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