arch/arm/boot/dts/bcm2708-rpi-zero.dts

   1 /dts-v1/;
   2
   3 #include "bcm2708.dtsi"
   4 #include "bcm2708-rpi.dtsi"
   5 #include "bcm283x-rpi-csi1-2lane.dtsi"
   6 #include "bcm283x-rpi-i2c0mux_0_28.dtsi"
   7
   8 / {
   9         compatible = "raspberrypi,model-zero", "brcm,bcm2835";
  10         model = "Raspberry Pi Zero";
  11
  12         chosen {
  13                 bootargs = "coherent_pool=1M snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1";
  14         };
  15 };
  16
  17 &gpio {
  18         /*
  19          * This is based on the official GPU firmware DT blob.
  20          *
  21          * Legend:
  22          * "NC" = not connected (no rail from the SoC)
  23          * "FOO" = GPIO line named "FOO" on the schematic
  24          * "FOO_N" = GPIO line named "FOO" on schematic, active low
  25          */
  26         gpio-line-names = "ID_SDA",
  27                           "ID_SCL",
  28                           "SDA1",
  29                           "SCL1",
  30                           "GPIO_GCLK",
  31                           "GPIO5",
  32                           "GPIO6",
  33                           "SPI_CE1_N",
  34                           "SPI_CE0_N",
  35                           "SPI_MISO",
  36                           "SPI_MOSI",
  37                           "SPI_SCLK",
  38                           "GPIO12",
  39                           "GPIO13",
  40                           /* Serial port */
  41                           "TXD0",
  42                           "RXD0",
  43                           "GPIO16",
  44                           "GPIO17",
  45                           "GPIO18",
  46                           "GPIO19",
  47                           "GPIO20",
  48                           "GPIO21",
  49                           "GPIO22",
  50                           "GPIO23",
  51                           "GPIO24",
  52                           "GPIO25",
  53                           "GPIO26",
  54                           "GPIO27",
  55                           "SDA0",
  56                           "SCL0",
  57                           "NC", /* GPIO30 */
  58                           "NC", /* GPIO31 */
  59                           "CAM_GPIO1", /* GPIO32 */
  60                           "NC", /* GPIO33 */
  61                           "NC", /* GPIO34 */
  62                           "NC", /* GPIO35 */
  63                           "NC", /* GPIO36 */
  64                           "NC", /* GPIO37 */
  65                           "NC", /* GPIO38 */
  66                           "NC", /* GPIO39 */
  67                           "NC", /* GPIO40 */
  68                           "CAM_GPIO0", /* GPIO41 */
  69                           "NC", /* GPIO42 */
  70                           "NC", /* GPIO43 */
  71                           "NC", /* GPIO44 */
  72                           "NC", /* GPIO45 */
  73                           "HDMI_HPD_N",
  74                           "STATUS_LED_N",
  75                           /* Used by SD Card */
  76                           "SD_CLK_R",
  77                           "SD_CMD_R",
  78                           "SD_DATA0_R",
  79                           "SD_DATA1_R",
  80                           "SD_DATA2_R",
  81                           "SD_DATA3_R";
  82
  83         spi0_pins: spi0_pins {
  84                 brcm,pins = <9 10 11>;
  85                 brcm,function = <4>; /* alt0 */
  86         };
  87
  88         spi0_cs_pins: spi0_cs_pins {
  89                 brcm,pins = <8 7>;
  90                 brcm,function = <1>; /* output */
  91         };
  92
  93         i2c0_pins: i2c0 {
  94                 brcm,pins = <0 1>;
  95                 brcm,function = <4>;
  96         };
  97
  98         i2c1_pins: i2c1 {
  99                 brcm,pins = <2 3>;
 100                 brcm,function = <4>;
 101         };
 102
 103         i2s_pins: i2s {
 104                 brcm,pins = <18 19 20 21>;
 105                 brcm,function = <4>; /* alt0 */
 106         };
 107
 108         audio_pins: audio_pins {
 109                 brcm,pins = <>;
 110                 brcm,function = <>;
 111         };
 112 };
 113
 114 &uart0 {
 115         status = "okay";
 116 };
 117
 118 &spi0 {
 119         pinctrl-names = "default";
 120         pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
 121         cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
 122
 123         spidev0: spidev@0{
 124                 compatible = "spidev";
 125                 reg = <0>;      /* CE0 */
 126                 #address-cells = <1>;
 127                 #size-cells = <0>;
 128                 spi-max-frequency = <125000000>;
 129         };
 130
 131         spidev1: spidev@1{
 132                 compatible = "spidev";
 133                 reg = <1>;      /* CE1 */
 134                 #address-cells = <1>;
 135                 #size-cells = <0>;
 136                 spi-max-frequency = <125000000>;
 137         };
 138 };
 139
 140 &i2c0if {
 141         clock-frequency = <100000>;
 142 };
 143
 144 &i2c1 {
 145         pinctrl-names = "default";
 146         pinctrl-0 = <&i2c1_pins>;
 147         clock-frequency = <100000>;
 148 };
 149
 150 &i2c2 {
 151         clock-frequency = <100000>;
 152 };
 153
 154 &i2s {
 155         pinctrl-names = "default";
 156         pinctrl-0 = <&i2s_pins>;
 157 };
 158
 159 &leds {
 160         act_led: led-act {
 161                 label = "led0";
 162                 linux,default-trigger = "actpwr";
 163                 gpios = <&gpio 47 GPIO_ACTIVE_LOW>;
 164         };
 165 };
 166
 167 &hdmi {
 168         hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
 169 };
 170
 171 &audio {
 172         pinctrl-names = "default";
 173         pinctrl-0 = <&audio_pins>;
 174         brcm,disable-headphones = <1>;
 175 };
 176
 177 &cam1_reg {
 178         gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
 179 };
 180
 181 cam0_reg: &cam_dummy_reg {
 182 };
 183
 184 / {
 185         __overrides__ {
 186                 act_led_gpio = <&act_led>,"gpios:4";
 187                 act_led_activelow = <&act_led>,"gpios:8";
 188                 act_led_trigger = <&act_led>,"linux,default-trigger";
 189         };
 190 };