arch/arm/boot/dts/bcm2711-rpi-4-b.dts

   1 // SPDX-License-Identifier: GPL-2.0
   2 /dts-v1/;
   3 #include "bcm2711.dtsi"
   4 #include "bcm2835-rpi.dtsi"
   5 #include "bcm283x-rpi-usb-peripheral.dtsi"
   6
   7 / {
   8         compatible = "raspberrypi,4-model-b", "brcm,bcm2711";
   9         model = "Raspberry Pi 4 Model B";
  10
  11         chosen {
  12                 /* 8250 auxiliary UART instead of pl011 */
  13                 stdout-path = "serial1:115200n8";
  14         };
  15
  16         /* Will be filled by the bootloader */
  17         memory@0 {
  18                 device_type = "memory";
  19                 reg = <0 0 0>;
  20         };
  21
  22         aliases {
  23                 emmc2bus = &emmc2bus;
  24                 ethernet0 = &genet;
  25                 pcie0 = &pcie0;
  26         };
  27
  28         leds {
  29                 act {
  30                         gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
  31                 };
  32
  33                 pwr {
  34                         label = "PWR";
  35                         gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
  36                         default-state = "keep";
  37                         linux,default-trigger = "default-on";
  38                 };
  39         };
  40
  41         wifi_pwrseq: wifi-pwrseq {
  42                 compatible = "mmc-pwrseq-simple";
  43                 reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
  44         };
  45
  46         sd_io_1v8_reg: sd_io_1v8_reg {
  47                 compatible = "regulator-gpio";
  48                 regulator-name = "vdd-sd-io";
  49                 regulator-min-microvolt = <1800000>;
  50                 regulator-max-microvolt = <3300000>;
  51                 regulator-boot-on;
  52                 regulator-always-on;
  53                 regulator-settling-time-us = <5000>;
  54                 gpios = <&expgpio 4 GPIO_ACTIVE_HIGH>;
  55                 states = <1800000 0x1
  56                           3300000 0x0>;
  57                 status = "okay";
  58         };
  59
  60         sd_vcc_reg: sd_vcc_reg {
  61                 compatible = "regulator-fixed";
  62                 regulator-name = "vcc-sd";
  63                 regulator-min-microvolt = <3300000>;
  64                 regulator-max-microvolt = <3300000>;
  65                 regulator-boot-on;
  66                 enable-active-high;
  67                 gpio = <&expgpio 6 GPIO_ACTIVE_HIGH>;
  68         };
  69 };
  70
  71 &firmware {
  72         firmware_clocks: clocks {
  73                 compatible = "raspberrypi,firmware-clocks";
  74                 #clock-cells = <1>;
  75         };
  76
  77         expgpio: gpio {
  78                 compatible = "raspberrypi,firmware-gpio";
  79                 gpio-controller;
  80                 #gpio-cells = <2>;
  81                 gpio-line-names = "BT_ON",
  82                                   "WL_ON",
  83                                   "PWR_LED_OFF",
  84                                   "GLOBAL_RESET",
  85                                   "VDD_SD_IO_SEL",
  86                                   "CAM_GPIO",
  87                                   "SD_PWR_ON",
  88                                   "";
  89                 status = "okay";
  90         };
  91
  92         reset: reset {
  93                 compatible = "raspberrypi,firmware-reset";
  94                 #reset-cells = <1>;
  95         };
  96 };
  97
  98 &gpio {
  99         /*
 100          * Parts taken from rpi_SCH_4b_4p0_reduced.pdf and
 101          * the official GPU firmware DT blob.
 102          *
 103          * Legend:
 104          * "FOO" = GPIO line named "FOO" on the schematic
 105          * "FOO_N" = GPIO line named "FOO" on schematic, active low
 106          */
 107         gpio-line-names = "ID_SDA",
 108                           "ID_SCL",
 109                           "SDA1",
 110                           "SCL1",
 111                           "GPIO_GCLK",
 112                           "GPIO5",
 113                           "GPIO6",
 114                           "SPI_CE1_N",
 115                           "SPI_CE0_N",
 116                           "SPI_MISO",
 117                           "SPI_MOSI",
 118                           "SPI_SCLK",
 119                           "GPIO12",
 120                           "GPIO13",
 121                           /* Serial port */
 122                           "TXD1",
 123                           "RXD1",
 124                           "GPIO16",
 125                           "GPIO17",
 126                           "GPIO18",
 127                           "GPIO19",
 128                           "GPIO20",
 129                           "GPIO21",
 130                           "GPIO22",
 131                           "GPIO23",
 132                           "GPIO24",
 133                           "GPIO25",
 134                           "GPIO26",
 135                           "GPIO27",
 136                           "RGMII_MDIO",
 137                           "RGMIO_MDC",
 138                           /* Used by BT module */
 139                           "CTS0",
 140                           "RTS0",
 141                           "TXD0",
 142                           "RXD0",
 143                           /* Used by Wifi */
 144                           "SD1_CLK",
 145                           "SD1_CMD",
 146                           "SD1_DATA0",
 147                           "SD1_DATA1",
 148                           "SD1_DATA2",
 149                           "SD1_DATA3",
 150                           /* Shared with SPI flash */
 151                           "PWM0_MISO",
 152                           "PWM1_MOSI",
 153                           "STATUS_LED_G_CLK",
 154                           "SPIFLASH_CE_N",
 155                           "SDA0",
 156                           "SCL0",
 157                           "RGMII_RXCLK",
 158                           "RGMII_RXCTL",
 159                           "RGMII_RXD0",
 160                           "RGMII_RXD1",
 161                           "RGMII_RXD2",
 162                           "RGMII_RXD3",
 163                           "RGMII_TXCLK",
 164                           "RGMII_TXCTL",
 165                           "RGMII_TXD0",
 166                           "RGMII_TXD1",
 167                           "RGMII_TXD2",
 168                           "RGMII_TXD3";
 169 };
 170
 171 &pwm1 {
 172         pinctrl-names = "default";
 173         pinctrl-0 = <&pwm1_0_gpio40 &pwm1_1_gpio41>;
 174         status = "okay";
 175 };
 176
 177 /* SDHCI is used to control the SDIO for wireless */
 178 &sdhci {
 179         #address-cells = <1>;
 180         #size-cells = <0>;
 181         pinctrl-names = "default";
 182         pinctrl-0 = <&emmc_gpio34>;
 183         bus-width = <4>;
 184         non-removable;
 185         mmc-pwrseq = <&wifi_pwrseq>;
 186         status = "okay";
 187
 188         brcmf: wifi@1 {
 189                 reg = <1>;
 190                 compatible = "brcm,bcm4329-fmac";
 191         };
 192 };
 193
 194 /* EMMC2 is used to drive the SD card */
 195 &emmc2 {
 196         vqmmc-supply = <&sd_io_1v8_reg>;
 197         vmmc-supply = <&sd_vcc_reg>;
 198         broken-cd;
 199         status = "okay";
 200 };
 201
 202 &genet {
 203         phy-handle = <&phy1>;
 204         phy-mode = "rgmii-rxid";
 205         status = "okay";
 206 };
 207
 208 &genet_mdio {
 209         phy1: ethernet-phy@1 {
 210                 /* No PHY interrupt */
 211                 reg = <0x1>;
 212         };
 213 };
 214
 215 /* uart0 communicates with the BT module */
 216 &uart0 {
 217         pinctrl-names = "default";
 218         pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>;
 219         uart-has-rtscts;
 220         status = "okay";
 221
 222         bluetooth {
 223                 compatible = "brcm,bcm43438-bt";
 224                 max-speed = <2000000>;
 225                 shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
 226         };
 227 };
 228
 229 /* uart1 is mapped to the pin header */
 230 &uart1 {
 231         pinctrl-names = "default";
 232         pinctrl-0 = <&uart1_gpio14>;
 233         status = "okay";
 234 };
 235
 236 &vchiq {
 237         interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
 238 };