arch/arm/boot/dts/broadcom/bcm2708-rpi-zero-w.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 #include "bcm2708-rpi-bt.dtsi"
   8 #include "bcm283x-rpi-led-deprecated.dtsi"
   9
  10 / {
  11         compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
  12         model = "Raspberry Pi Zero W";
  13
  14         chosen {
  15                 bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_headphones=0";
  16         };
  17
  18         aliases {
  19                 serial0 = &uart1;
  20                 serial1 = &uart0;
  21                 mmc1 = &mmcnr;
  22         };
  23 };
  24
  25 &gpio {
  26         /*
  27          * This is based on the official GPU firmware DT blob.
  28          *
  29          * Legend:
  30          * "NC" = not connected (no rail from the SoC)
  31          * "FOO" = GPIO line named "FOO" on the schematic
  32          * "FOO_N" = GPIO line named "FOO" on schematic, active low
  33          */
  34         gpio-line-names = "ID_SDA",
  35                           "ID_SCL",
  36                           "SDA1",
  37                           "SCL1",
  38                           "GPIO_GCLK",
  39                           "GPIO5",
  40                           "GPIO6",
  41                           "SPI_CE1_N",
  42                           "SPI_CE0_N",
  43                           "SPI_MISO",
  44                           "SPI_MOSI",
  45                           "SPI_SCLK",
  46                           "GPIO12",
  47                           "GPIO13",
  48                           /* Serial port */
  49                           "TXD1",
  50                           "RXD1",
  51                           "GPIO16",
  52                           "GPIO17",
  53                           "GPIO18",
  54                           "GPIO19",
  55                           "GPIO20",
  56                           "GPIO21",
  57                           "GPIO22",
  58                           "GPIO23",
  59                           "GPIO24",
  60                           "GPIO25",
  61                           "GPIO26",
  62                           "GPIO27",
  63                           "SDA0",
  64                           "SCL0",
  65                           /* Used by BT module */
  66                           "CTS0",
  67                           "RTS0",
  68                           "TXD0",
  69                           "RXD0",
  70                           /* Used by Wifi */
  71                           "SD1_CLK",
  72                           "SD1_CMD",
  73                           "SD1_DATA0",
  74                           "SD1_DATA1",
  75                           "SD1_DATA2",
  76                           "SD1_DATA3",
  77                           "CAM_GPIO1", /* GPIO40 */
  78                           "WL_ON", /* GPIO41 */
  79                           "NC", /* GPIO42 */
  80                           "WIFI_CLK", /* GPIO43 */
  81                           "CAM_GPIO0", /* GPIO44 */
  82                           "BT_ON", /* GPIO45 */
  83                           "HDMI_HPD_N",
  84                           "STATUS_LED_N",
  85                           /* Used by SD Card */
  86                           "SD_CLK_R",
  87                           "SD_CMD_R",
  88                           "SD_DATA0_R",
  89                           "SD_DATA1_R",
  90                           "SD_DATA2_R",
  91                           "SD_DATA3_R";
  92
  93         spi0_pins: spi0_pins {
  94                 brcm,pins = <9 10 11>;
  95                 brcm,function = <4>; /* alt0 */
  96         };
  97
  98         spi0_cs_pins: spi0_cs_pins {
  99                 brcm,pins = <8 7>;
 100                 brcm,function = <1>; /* output */
 101         };
 102
 103         i2c0_pins: i2c0 {
 104                 brcm,pins = <0 1>;
 105                 brcm,function = <4>;
 106         };
 107
 108         i2c1_pins: i2c1 {
 109                 brcm,pins = <2 3>;
 110                 brcm,function = <4>;
 111         };
 112
 113         i2s_pins: i2s {
 114                 brcm,pins = <18 19 20 21>;
 115                 brcm,function = <4>; /* alt0 */
 116         };
 117
 118         sdio_pins: sdio_pins {
 119                 brcm,pins = <34 35 36 37 38 39>;
 120                 brcm,function = <7>; /* ALT3 = SD1 */
 121                 brcm,pull = <0 2 2 2 2 2>;
 122         };
 123
 124         bt_pins: bt_pins {
 125                 brcm,pins = <43>;
 126                 brcm,function = <4>; /* alt0:GPCLK2 */
 127                 brcm,pull = <0>; /* none */
 128         };
 129
 130         uart0_pins: uart0_pins {
 131                 brcm,pins = <30 31 32 33>;
 132                 brcm,function = <7>; /* alt3=UART0 */
 133                 brcm,pull = <2 0 0 2>; /* up none none up */
 134         };
 135
 136         uart1_pins: uart1_pins {
 137                 brcm,pins;
 138                 brcm,function;
 139                 brcm,pull;
 140         };
 141
 142         uart1_bt_pins: uart1_bt_pins {
 143                 brcm,pins = <32 33 30 31>;
 144                 brcm,function = <BCM2835_FSEL_ALT5>; /* alt5=UART1 */
 145                 brcm,pull = <0 2 2 0>;
 146         };
 147
 148         audio_pins: audio_pins {
 149                 brcm,pins = <>;
 150                 brcm,function = <>;
 151         };
 152 };
 153
 154 &mmcnr {
 155         pinctrl-names = "default";
 156         pinctrl-0 = <&sdio_pins>;
 157         bus-width = <4>;
 158         status = "okay";
 159         #address-cells = <1>;
 160         #size-cells = <0>;
 161
 162         brcmf: wifi@1 {
 163                 reg = <1>;
 164                 compatible = "brcm,bcm4329-fmac";
 165         };
 166 };
 167
 168 &uart0 {
 169         pinctrl-names = "default";
 170         pinctrl-0 = <&uart0_pins &bt_pins>;
 171         status = "okay";
 172 };
 173
 174 &uart1 {
 175         pinctrl-names = "default";
 176         pinctrl-0 = <&uart1_pins>;
 177         status = "okay";
 178 };
 179
 180 &spi0 {
 181         pinctrl-names = "default";
 182         pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
 183         cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
 184
 185         spidev0: spidev@0{
 186                 compatible = "spidev";
 187                 reg = <0>;      /* CE0 */
 188                 #address-cells = <1>;
 189                 #size-cells = <0>;
 190                 spi-max-frequency = <125000000>;
 191         };
 192
 193         spidev1: spidev@1{
 194                 compatible = "spidev";
 195                 reg = <1>;      /* CE1 */
 196                 #address-cells = <1>;
 197                 #size-cells = <0>;
 198                 spi-max-frequency = <125000000>;
 199         };
 200 };
 201
 202 &i2c0if {
 203         clock-frequency = <100000>;
 204 };
 205
 206 &i2c1 {
 207         pinctrl-names = "default";
 208         pinctrl-0 = <&i2c1_pins>;
 209         clock-frequency = <100000>;
 210 };
 211
 212 &i2c2 {
 213         clock-frequency = <100000>;
 214 };
 215
 216 &i2s {
 217         pinctrl-names = "default";
 218         pinctrl-0 = <&i2s_pins>;
 219 };
 220
 221 &led_act {
 222         gpios = <&gpio 47 GPIO_ACTIVE_LOW>;
 223         default-state = "off";
 224         linux,default-trigger = "actpwr";
 225 };
 226
 227 &hdmi {
 228         hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
 229 };
 230
 231 &vchiq {
 232         pinctrl-names = "default";
 233         pinctrl-0 = <&audio_pins>;
 234 };
 235
 236 &cam1_reg {
 237         gpio = <&gpio 44 GPIO_ACTIVE_HIGH>;
 238 };
 239
 240 cam0_reg: &cam_dummy_reg {
 241 };
 242
 243 i2c_arm: &i2c1 {};
 244 i2c_vc: &i2c0 {};
 245 i2c_csi_dsi0: &i2c0 {};
 246
 247 / {
 248         __overrides__ {
 249                 audio = <&chosen>,"bootargs{on='snd_bcm2835.enable_hdmi=1',off='snd_bcm2835.enable_hdmi=0'}";
 250
 251                 act_led_gpio = <&led_act>,"gpios:4";
 252                 act_led_activelow = <&led_act>,"gpios:8";
 253                 act_led_trigger = <&led_act>,"linux,default-trigger";
 254         };
 255 };