| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /dts-v1/; |
| 3 | #include "bcm2837.dtsi" |
| 4 | #include "bcm2836-rpi.dtsi" |
| 5 | #include "bcm283x-rpi-led-deprecated.dtsi" |
| 6 | #include "bcm283x-rpi-smsc9514.dtsi" |
| 7 | #include "bcm283x-rpi-usb-host.dtsi" |
| 8 | #include "bcm283x-rpi-wifi-bt.dtsi" |
| 9 | |
| 10 | / { |
| 11 | compatible = "raspberrypi,3-model-b", "brcm,bcm2837"; |
| 12 | model = "Raspberry Pi 3 Model B"; |
| 13 | |
| 14 | chosen { |
| 15 | /* 8250 auxiliary UART instead of pl011 */ |
| 16 | stdout-path = "serial1:115200n8"; |
| 17 | }; |
| 18 | |
| 19 | memory@0 { |
| 20 | device_type = "memory"; |
| 21 | reg = <0 0x40000000>; |
| 22 | }; |
| 23 | }; |
| 24 | |
| 25 | &bt { |
| 26 | shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>; |
| 27 | }; |
| 28 | |
| 29 | &firmware { |
| 30 | expgpio: gpio { |
| 31 | compatible = "raspberrypi,firmware-gpio"; |
| 32 | gpio-controller; |
| 33 | #gpio-cells = <2>; |
| 34 | gpio-line-names = "BT_ON", |
| 35 | "WL_ON", |
| 36 | "STATUS_LED", |
| 37 | "LAN_RUN", |
| 38 | "HDMI_HPD_N", |
| 39 | "CAM_GPIO0", |
| 40 | "CAM_GPIO1", |
| 41 | "PWR_LOW_N"; |
| 42 | status = "okay"; |
| 43 | }; |
| 44 | }; |
| 45 | |
| 46 | &gpio { |
| 47 | /* |
| 48 | * Taken from rpi_SCH_3b_1p2_reduced.pdf and |
| 49 | * the official GPU firmware DT blob. |
| 50 | * |
| 51 | * Legend: |
| 52 | * "FOO" = GPIO line named "FOO" on the schematic |
| 53 | * "FOO_N" = GPIO line named "FOO" on schematic, active low |
| 54 | */ |
| 55 | gpio-line-names = "ID_SDA", |
| 56 | "ID_SCL", |
| 57 | "SDA1", |
| 58 | "SCL1", |
| 59 | "GPIO_GCLK", |
| 60 | "GPIO5", |
| 61 | "GPIO6", |
| 62 | "SPI_CE1_N", |
| 63 | "SPI_CE0_N", |
| 64 | "SPI_MISO", |
| 65 | "SPI_MOSI", |
| 66 | "SPI_SCLK", |
| 67 | "GPIO12", |
| 68 | "GPIO13", |
| 69 | /* Serial port */ |
| 70 | "TXD1", |
| 71 | "RXD1", |
| 72 | "GPIO16", |
| 73 | "GPIO17", |
| 74 | "GPIO18", |
| 75 | "GPIO19", |
| 76 | "GPIO20", |
| 77 | "GPIO21", |
| 78 | "GPIO22", |
| 79 | "GPIO23", |
| 80 | "GPIO24", |
| 81 | "GPIO25", |
| 82 | "GPIO26", |
| 83 | "GPIO27", |
| 84 | "", /* GPIO 28 */ |
| 85 | "LAN_RUN_BOOT", |
| 86 | /* Used by BT module */ |
| 87 | "CTS0", |
| 88 | "RTS0", |
| 89 | "TXD0", |
| 90 | "RXD0", |
| 91 | /* Used by Wifi */ |
| 92 | "SD1_CLK", |
| 93 | "SD1_CMD", |
| 94 | "SD1_DATA0", |
| 95 | "SD1_DATA1", |
| 96 | "SD1_DATA2", |
| 97 | "SD1_DATA3", |
| 98 | "PWM0_OUT", |
| 99 | "PWM1_OUT", |
| 100 | "ETH_CLK", |
| 101 | "WIFI_CLK", |
| 102 | "SDA0", |
| 103 | "SCL0", |
| 104 | "SMPS_SCL", |
| 105 | "SMPS_SDA", |
| 106 | /* Used by SD Card */ |
| 107 | "SD_CLK_R", |
| 108 | "SD_CMD_R", |
| 109 | "SD_DATA0_R", |
| 110 | "SD_DATA1_R", |
| 111 | "SD_DATA2_R", |
| 112 | "SD_DATA3_R"; |
| 113 | }; |
| 114 | |
| 115 | &pwm { |
| 116 | pinctrl-names = "default"; |
| 117 | pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>; |
| 118 | status = "okay"; |
| 119 | }; |
| 120 | |
| 121 | &hdmi { |
| 122 | hpd-gpios = <&expgpio 4 GPIO_ACTIVE_LOW>; |
| 123 | power-domains = <&power RPI_POWER_DOMAIN_HDMI>; |
| 124 | status = "okay"; |
| 125 | }; |
| 126 | |
| 127 | &led_act { |
| 128 | gpios = <&expgpio 2 GPIO_ACTIVE_HIGH>; |
| 129 | }; |
| 130 | |
| 131 | /* uart0 communicates with the BT module */ |
| 132 | &uart0 { |
| 133 | pinctrl-names = "default"; |
| 134 | pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>; |
| 135 | }; |
| 136 | |
| 137 | /* uart1 is mapped to the pin header */ |
| 138 | &uart1 { |
| 139 | pinctrl-names = "default"; |
| 140 | pinctrl-0 = <&uart1_gpio14>; |
| 141 | status = "okay"; |
| 142 | }; |
| 143 | |
| 144 | /* SDHOST is used to drive the SD card */ |
| 145 | &sdhost { |
| 146 | pinctrl-names = "default"; |
| 147 | pinctrl-0 = <&sdhost_gpio48>; |
| 148 | status = "okay"; |
| 149 | bus-width = <4>; |
| 150 | }; |
| 151 | |
| 152 | &wifi_pwrseq { |
| 153 | reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>; |
| 154 | }; |