| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * Copyright (C) 2016 Stefan Wahren <stefan.wahren@i2se.com> |
| 4 | */ |
| 5 | |
| 6 | /dts-v1/; |
| 7 | #include "bcm2835.dtsi" |
| 8 | #include "bcm2835-rpi.dtsi" |
| 9 | #include "bcm2835-rpi-common.dtsi" |
| 10 | #include "bcm283x-rpi-led-deprecated.dtsi" |
| 11 | #include "bcm283x-rpi-usb-otg.dtsi" |
| 12 | |
| 13 | / { |
| 14 | compatible = "raspberrypi,model-zero", "brcm,bcm2835"; |
| 15 | model = "Raspberry Pi Zero"; |
| 16 | |
| 17 | memory@0 { |
| 18 | device_type = "memory"; |
| 19 | reg = <0 0x20000000>; |
| 20 | }; |
| 21 | }; |
| 22 | |
| 23 | &gpio { |
| 24 | /* |
| 25 | * This is based on the official GPU firmware DT blob. |
| 26 | * |
| 27 | * Legend: |
| 28 | * "FOO" = GPIO line named "FOO" on the schematic |
| 29 | * "FOO_N" = GPIO line named "FOO" on schematic, active low |
| 30 | */ |
| 31 | gpio-line-names = "ID_SDA", |
| 32 | "ID_SCL", |
| 33 | "SDA1", |
| 34 | "SCL1", |
| 35 | "GPIO_GCLK", |
| 36 | "GPIO5", |
| 37 | "GPIO6", |
| 38 | "SPI_CE1_N", |
| 39 | "SPI_CE0_N", |
| 40 | "SPI_MISO", |
| 41 | "SPI_MOSI", |
| 42 | "SPI_SCLK", |
| 43 | "GPIO12", |
| 44 | "GPIO13", |
| 45 | /* Serial port */ |
| 46 | "TXD0", |
| 47 | "RXD0", |
| 48 | "GPIO16", |
| 49 | "GPIO17", |
| 50 | "GPIO18", |
| 51 | "GPIO19", |
| 52 | "GPIO20", |
| 53 | "GPIO21", |
| 54 | "GPIO22", |
| 55 | "GPIO23", |
| 56 | "GPIO24", |
| 57 | "GPIO25", |
| 58 | "GPIO26", |
| 59 | "GPIO27", |
| 60 | "SDA0", |
| 61 | "SCL0", |
| 62 | "", /* GPIO30 */ |
| 63 | "", /* GPIO31 */ |
| 64 | "CAM_GPIO1", /* GPIO32 */ |
| 65 | "", /* GPIO33 */ |
| 66 | "", /* GPIO34 */ |
| 67 | "", /* GPIO35 */ |
| 68 | "", /* GPIO36 */ |
| 69 | "", /* GPIO37 */ |
| 70 | "", /* GPIO38 */ |
| 71 | "", /* GPIO39 */ |
| 72 | "", /* GPIO40 */ |
| 73 | "CAM_GPIO0", /* GPIO41 */ |
| 74 | "", /* GPIO42 */ |
| 75 | "", /* GPIO43 */ |
| 76 | "", /* GPIO44 */ |
| 77 | "", /* GPIO45 */ |
| 78 | "HDMI_HPD_N", |
| 79 | "STATUS_LED_N", |
| 80 | /* Used by SD Card */ |
| 81 | "SD_CLK_R", |
| 82 | "SD_CMD_R", |
| 83 | "SD_DATA0_R", |
| 84 | "SD_DATA1_R", |
| 85 | "SD_DATA2_R", |
| 86 | "SD_DATA3_R"; |
| 87 | |
| 88 | pinctrl-names = "default"; |
| 89 | pinctrl-0 = <&gpioout &alt0 &i2s_alt0>; |
| 90 | |
| 91 | /* I2S interface */ |
| 92 | i2s_alt0: i2s_alt0 { |
| 93 | brcm,pins = <18 19 20 21>; |
| 94 | brcm,function = <BCM2835_FSEL_ALT0>; |
| 95 | }; |
| 96 | }; |
| 97 | |
| 98 | &hdmi { |
| 99 | hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; |
| 100 | power-domains = <&power RPI_POWER_DOMAIN_HDMI>; |
| 101 | status = "okay"; |
| 102 | }; |
| 103 | |
| 104 | &led_act { |
| 105 | gpios = <&gpio 47 GPIO_ACTIVE_HIGH>; |
| 106 | }; |
| 107 | |
| 108 | &sdhost { |
| 109 | pinctrl-names = "default"; |
| 110 | pinctrl-0 = <&sdhost_gpio48>; |
| 111 | bus-width = <4>; |
| 112 | status = "okay"; |
| 113 | }; |
| 114 | |
| 115 | &uart0 { |
| 116 | pinctrl-names = "default"; |
| 117 | pinctrl-0 = <&uart0_gpio14>; |
| 118 | status = "okay"; |
| 119 | }; |