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 = <®_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-tis@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 = <ðphy>; 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 = <®_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}; 314