src/arm/nxp/imx/imx7d-flex-concentrator.dts

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Device Tree Source for Kamstrup OMNIA Flex Concentrator.
   4  *
   5  * Copyright (C) 2020 Kamstrup A/S
   6  * Author: Bruno Thomsen <bruno.thomsen@gmail.com>
   7  */
   8
   9 /dts-v1/;
  10
  11 #include "imx7d-tqma7.dtsi"
  12
  13 /* One I2C device on TQMa7 SoM is not mounted */
  14 /delete-node/ &ds1339;
  15
  16 / {
  17         model = "Kamstrup OMNIA Flex Concentrator";
  18         compatible = "kam,imx7d-flex-concentrator", "fsl,imx7d";
  19
  20         memory@80000000 {
  21                 device_type = "memory";
  22                 /* 1024 MB - TQMa7D board configuration */
  23                 reg = <0x80000000 0x40000000>;
  24         };
  25
  26         reg_usb_otg2_vbus: regulator-usb-otg2-vbus {
  27                 compatible = "regulator-fixed";
  28                 regulator-name = "VBUS_USBOTG2";
  29                 regulator-min-microvolt = <5000000>;
  30                 regulator-max-microvolt = <5000000>;
  31                 gpio = <&gpio1 7 GPIO_ACTIVE_HIGH>;
  32                 enable-active-high;
  33         };
  34
  35         reg_vref_1v8: regulator-vref-1v8 {
  36                 compatible = "regulator-fixed";
  37                 regulator-name = "VCC1V8_REF";
  38                 regulator-min-microvolt = <1800000>;
  39                 regulator-max-microvolt = <1800000>;
  40                 regulator-always-on;
  41                 vin-supply = <&sw2_reg>;
  42         };
  43
  44         /*
  45          * Human Machine Interface consists of 4 dual red/green LEDs.
  46          * hmi-a:green is controlled directly by the switch-mode power supply.
  47          * hmi-a:red is not used.
  48          */
  49         gpio-leds {
  50                 compatible = "gpio-leds";
  51                 pinctrl-names = "default";
  52                 pinctrl-0 = <&pinctrl_leds>;
  53
  54                 led-0 {
  55                         label = "hmi-b:red:heartbeat-degraded";
  56                         gpios = <&gpio3 6 GPIO_ACTIVE_HIGH>;
  57                 };
  58
  59                 led-1 {
  60                         label = "hmi-b:green:heartbeat-running";
  61                         gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>;
  62                         linux,default-trigger = "heartbeat";
  63                 };
  64
  65                 led-2 {
  66                         label = "hmi-c:red:mesh-error";
  67                         gpios = <&gpio2 29 GPIO_ACTIVE_HIGH>;
  68                 };
  69
  70                 led-3 {
  71                         label = "hmi-c:green:mesh-activity";
  72                         gpios = <&gpio2 30 GPIO_ACTIVE_HIGH>;
  73                 };
  74
  75                 led-4 {
  76                         label = "hmi-d:red:omnia-error";
  77                         gpios = <&gpio2 31 GPIO_ACTIVE_HIGH>;
  78                 };
  79
  80                 led-5 {
  81                         label = "hmi-d:green:omnia-activity";
  82                         gpios = <&gpio4 3 GPIO_ACTIVE_HIGH>;
  83                 };
  84         };
  85
  86         /*
  87          * Errata e10574 board restart workaround.
  88          */
  89         gpio-restart {
  90                 pinctrl-names = "default";
  91                 pinctrl-0 = <&pinctrl_restart>;
  92                 compatible = "gpio-restart";
  93                 gpios = <&gpio7 12 GPIO_ACTIVE_LOW>;
  94                 priority = <200>;
  95         };
  96 };
  97
  98 /*
  99  * Analog signals
 100  * ADC1_IN0: SMPS - 5V output monitor (voltage divider: 1/0.2806)
 101  */
 102 &adc1 {
 103         vref-supply = <&reg_vref_1v8>;
 104         status = "okay";
 105 };
 106
 107 &ecspi2 {
 108         pinctrl-names = "default";
 109         pinctrl-0 = <&pinctrl_ecspi2>;
 110         cs-gpios = <&gpio4 23 GPIO_ACTIVE_LOW>;
 111         status = "okay";
 112
 113         pcf2127: rtc@0 {
 114                 compatible = "nxp,pcf2127";
 115                 reg = <0>;
 116                 spi-max-frequency = <2000000>;
 117                 reset-source;
 118         };
 119 };
 120
 121 &ecspi4 {
 122         pinctrl-names = "default";
 123         pinctrl-0 = <&pinctrl_ecspi4>;
 124         cs-gpios = <&gpio3 3 GPIO_ACTIVE_LOW>;
 125         status = "okay";
 126
 127         /*
 128          * ST chip maximum SPI clock frequency is 33 MHz.
 129          *
 130          * TCG specification - Section 6.4.1 Clocking:
 131          * TPM shall support a SPI clock frequency range of 10-24 MHz.
 132          */
 133         st33htph: tpm@0 {
 134                 compatible = "st,st33htpm-spi", "tcg,tpm_tis-spi";
 135                 reg = <0>;
 136                 spi-max-frequency = <24000000>;
 137         };
 138 };
 139
 140 &fec1 {
 141         pinctrl-names = "default";
 142         pinctrl-0 = <&pinctrl_enet1>;
 143         phy-mode = "rmii";
 144         phy-handle = <&ethphy>;
 145         status = "okay";
 146
 147         /*
 148          * MDIO bus reset is used to generate PHY device reset before
 149          * Ethernet PHY type ID auto-detection. Otherwise this communication
 150          * fails as device does not answer when recommended reset circuit
 151          * is used.
 152          */
 153         mdio {
 154                 #address-cells = <1>;
 155                 #size-cells = <0>;
 156
 157                 reset-delay-us = <100000>;
 158                 reset-post-delay-us = <500000>;
 159                 reset-gpios = <&gpio7 15 GPIO_ACTIVE_LOW>;
 160
 161                 /* Microchip/Micrel KSZ8081RNB */
 162                 ethphy: ethernet-phy@1 {
 163                         compatible = "ethernet-phy-ieee802.3-c22";
 164                         interrupt-parent = <&gpio1>;
 165                         interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
 166                         reg = <1>;
 167                 };
 168         };
 169 };
 170
 171 /*
 172  * Detection signals for internal USB modules.
 173  * Used for robust USB plug and play handling such as USB downstream port
 174  * power-cycle and USB hub reset in case of misbehaving or crashed modules.
 175  *
 176  * SMPS - AC input monitor based on zero crossing.
 177  * Used for last gasp notification.
 178  */
 179 &gpio3 {
 180         gpio-line-names = "", "", "", "", "", "", "", "",
 181         "", "", "", "", "smps-ac-monitor", "", "usb-hub-reset", "",
 182         "", "", "", "", "", "", "", "",
 183         "", "module-b-detection", "", "module-a-detection", "", "", "", "";
 184 };
 185
 186 /*
 187  * Tamper IRQ trigger timestamp reading.
 188  * Used for sealed cover opened/closed notification.
 189  */
 190 &gpio5 {
 191         gpio-line-names = "", "", "", "", "", "", "", "",
 192         "", "", "", "", "rtc-tamper-irq", "", "", "",
 193         "", "", "", "", "", "", "", "",
 194         "", "", "", "", "", "", "", "";
 195 };
 196
 197 &iomuxc {
 198         pinctrl-names = "default";
 199         pinctrl-0 = <&pinctrl_misc>;
 200
 201         pinctrl_ecspi2: ecspi2grp {
 202                 fsl,pins = <
 203                         MX7D_PAD_ECSPI2_MISO__ECSPI2_MISO               0x7c /* X2-15 */
 204                         MX7D_PAD_ECSPI2_MOSI__ECSPI2_MOSI               0x74 /* X2-18 */
 205                         MX7D_PAD_ECSPI2_SCLK__ECSPI2_SCLK               0x74 /* X2-13 */
 206                         MX7D_PAD_ECSPI2_SS0__GPIO4_IO23                 0x74 /* X2-20 */
 207                         /* RTC - Tamper IRQ */
 208                         MX7D_PAD_SD2_CLK__GPIO5_IO12                    0x3c /* X1-92 */
 209                 >;
 210         };
 211
 212         pinctrl_ecspi4: ecspi4grp {
 213                 fsl,pins = <
 214                         MX7D_PAD_LCD_CLK__ECSPI4_MISO                   0x7c /* X2-72 */
 215                         MX7D_PAD_LCD_ENABLE__ECSPI4_MOSI                0x74 /* X2-68 */
 216                         MX7D_PAD_LCD_HSYNC__ECSPI4_SCLK                 0x74 /* X2-76 */
 217                         MX7D_PAD_LCD_VSYNC__GPIO3_IO3                   0x74 /* X2-78 */
 218                 >;
 219         };
 220
 221         pinctrl_enet1: enet1grp {
 222                 fsl,pins = <
 223                         MX7D_PAD_GPIO1_IO10__ENET1_MDIO                 0x03 /* X2-48 */
 224                         MX7D_PAD_GPIO1_IO11__ENET1_MDC                  0x03 /* X2-46 */
 225                         MX7D_PAD_ENET1_RGMII_TD0__ENET1_RGMII_TD0       0x71 /* X2-53 */
 226                         MX7D_PAD_ENET1_RGMII_TD1__ENET1_RGMII_TD1       0x71 /* X2-55 */
 227                         MX7D_PAD_ENET1_RGMII_TX_CTL__ENET1_RGMII_TX_CTL 0x71 /* X2-61 */
 228                         MX7D_PAD_ENET1_RGMII_RD0__ENET1_RGMII_RD0       0x79 /* X2-56 */
 229                         MX7D_PAD_ENET1_RGMII_RD1__ENET1_RGMII_RD1       0x79 /* X2-58 */
 230                         MX7D_PAD_ENET1_RGMII_RX_CTL__ENET1_RGMII_RX_CTL 0x79 /* X2-64 */
 231                         MX7D_PAD_ENET1_RGMII_RXC__ENET1_RX_ER           0x73 /* X2-52 */
 232                         /* PHY reset: SRE_FAST, DSE_X1 */
 233                         MX7D_PAD_ENET1_COL__GPIO7_IO15                  0x00 /* X1-96 */
 234                         /* Clock from PHY to MAC: 100kPU */
 235                         MX7D_PAD_GPIO1_IO12__CCM_ENET_REF_CLK1          0x70 /* X3-4 */
 236                         /* PHY interrupt: 100kPU, HYS */
 237                         MX7D_PAD_GPIO1_IO09__GPIO1_IO9                  0x78 /* X1-80 */
 238                 >;
 239         };
 240
 241         pinctrl_leds: ledsgrp {
 242                 fsl,pins = <
 243                         MX7D_PAD_LCD_DATA01__GPIO3_IO6                  0x14 /* X2-82 */
 244                         MX7D_PAD_EPDC_BDR0__GPIO2_IO28                  0x14 /* X1-82 */
 245                         MX7D_PAD_EPDC_BDR1__GPIO2_IO29                  0x14 /* X1-84 */
 246                         MX7D_PAD_EPDC_PWR_COM__GPIO2_IO30               0x14 /* X1-86 */
 247                         MX7D_PAD_EPDC_PWR_STAT__GPIO2_IO31              0x14 /* X1-88 */
 248                         MX7D_PAD_UART2_TX_DATA__GPIO4_IO3               0x14 /* X1-90 */
 249                 >;
 250         };
 251
 252         pinctrl_misc: miscgrp {
 253                 fsl,pins = <
 254                         /* Module A detection (low = present) */
 255                         MX7D_PAD_LCD_DATA22__GPIO3_IO27                 0x7c /* X2-105 */
 256                         /* Module B detection (low = present) */
 257                         MX7D_PAD_LCD_DATA20__GPIO3_IO25                 0x7c /* X2-103 */
 258                         /* SMPS - AC input monitor (high = failure) */
 259                         MX7D_PAD_LCD_DATA07__GPIO3_IO12                 0x7c /* X2-88 */
 260                         /* USB - Hub reset */
 261                         MX7D_PAD_LCD_DATA09__GPIO3_IO14                 0x74 /* X2-92 */
 262                 >;
 263         };
 264
 265         pinctrl_restart: restartgrp {
 266                 fsl,pins = <
 267                         MX7D_PAD_ENET1_TX_CLK__GPIO7_IO12       0x74 /* X1-94 */
 268                 >;
 269         };
 270
 271         pinctrl_uart4: uart4grp {
 272                 fsl,pins = <
 273                         MX7D_PAD_SAI2_TX_SYNC__UART4_DCE_RX     0x7e /* X3-14 */
 274                         MX7D_PAD_SAI2_TX_BCLK__UART4_DCE_TX     0x76 /* X3-16 */
 275                 >;
 276         };
 277 };
 278
 279 &iomuxc_lpsr {
 280         pinctrl_usbotg2: usbotg2grp {
 281                 fsl,pins = <
 282                         MX7D_PAD_LPSR_GPIO1_IO06__USB_OTG2_OC   0x5c /* X3-11 */
 283                         MX7D_PAD_LPSR_GPIO1_IO07__GPIO1_IO7     0x59 /* X3-9 */
 284                 >;
 285         };
 286
 287 };
 288
 289 &uart4 {
 290         pinctrl-names = "default";
 291         pinctrl-0 = <&pinctrl_uart4>;
 292         assigned-clocks = <&clks IMX7D_UART4_ROOT_SRC>;
 293         assigned-clock-parents = <&clks IMX7D_OSC_24M_CLK>;
 294 };
 295
 296 &usbotg2 {
 297         pinctrl-names = "default";
 298         pinctrl-0 = <&pinctrl_usbotg2>;
 299         vbus-supply = <&reg_usb_otg2_vbus>;
 300         srp-disable;
 301         hnp-disable;
 302         adp-disable;
 303         over-current-active-low;
 304         dr_mode = "host";
 305         status = "okay";
 306 };
 307
 308 /*
 309  * External watchdog feature provided by pcf2127.
 310  */
 311 &wdog1 {
 312         status = "disabled";
 313 };