arch/arm/dts/imx8mn-ddr4-evk.dts

   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                 regulators {
  63                         buck1_reg: BUCK1 {
  64                                 regulator-name = "buck1";
  65                                 regulator-min-microvolt = <700000>;
  66                                 regulator-max-microvolt = <1300000>;
  67                                 regulator-boot-on;
  68                                 regulator-always-on;
  69                                 regulator-ramp-delay = <1250>;
  70                         };
  71
  72                         buck2_reg: BUCK2 {
  73                                 regulator-name = "buck2";
  74                                 regulator-min-microvolt = <700000>;
  75                                 regulator-max-microvolt = <1300000>;
  76                                 regulator-boot-on;
  77                                 regulator-always-on;
  78                                 regulator-ramp-delay = <1250>;
  79                         };
  80
  81                         buck3_reg: BUCK3 {
  82                                 // BUCK5 in datasheet
  83                                 regulator-name = "buck3";
  84                                 regulator-min-microvolt = <700000>;
  85                                 regulator-max-microvolt = <1350000>;
  86                         };
  87
  88                         buck4_reg: BUCK4 {
  89                                 // BUCK6 in datasheet
  90                                 regulator-name = "buck4";
  91                                 regulator-min-microvolt = <3000000>;
  92                                 regulator-max-microvolt = <3300000>;
  93                                 regulator-boot-on;
  94                                 regulator-always-on;
  95                         };
  96
  97                         buck5_reg: BUCK5 {
  98                                 // BUCK7 in datasheet
  99                                 regulator-name = "buck5";
 100                                 regulator-min-microvolt = <1605000>;
 101                                 regulator-max-microvolt = <1995000>;
 102                                 regulator-boot-on;
 103                                 regulator-always-on;
 104                         };
 105
 106                         buck6_reg: BUCK6 {
 107                                 // BUCK8 in datasheet
 108                                 regulator-name = "buck6";
 109                                 regulator-min-microvolt = <800000>;
 110                                 regulator-max-microvolt = <1400000>;
 111                                 regulator-boot-on;
 112                                 regulator-always-on;
 113                         };
 114
 115                         ldo1_reg: LDO1 {
 116                                 regulator-name = "ldo1";
 117                                 regulator-min-microvolt = <1600000>;
 118                                 regulator-max-microvolt = <3300000>;
 119                                 regulator-boot-on;
 120                                 regulator-always-on;
 121                         };
 122
 123                         ldo2_reg: LDO2 {
 124                                 regulator-name = "ldo2";
 125                                 regulator-min-microvolt = <800000>;
 126                                 regulator-max-microvolt = <900000>;
 127                                 regulator-boot-on;
 128                                 regulator-always-on;
 129                         };
 130
 131                         ldo3_reg: LDO3 {
 132                                 regulator-name = "ldo3";
 133                                 regulator-min-microvolt = <1800000>;
 134                                 regulator-max-microvolt = <3300000>;
 135                                 regulator-boot-on;
 136                                 regulator-always-on;
 137                         };
 138
 139                         ldo4_reg: LDO4 {
 140                                 regulator-name = "ldo4";
 141                                 regulator-min-microvolt = <900000>;
 142                                 regulator-max-microvolt = <1800000>;
 143                                 regulator-boot-on;
 144                                 regulator-always-on;
 145                         };
 146
 147                         ldo6_reg: LDO6 {
 148                                 regulator-name = "ldo6";
 149                                 regulator-min-microvolt = <900000>;
 150                                 regulator-max-microvolt = <1800000>;
 151                                 regulator-boot-on;
 152                                 regulator-always-on;
 153                         };
 154                 };
 155         };
 156 };