arch/arm/boot/dts/broadcom/bcm2835-rpi-a.dts

   1 // SPDX-License-Identifier: GPL-2.0
   2 /dts-v1/;
   3 #include "bcm2835.dtsi"
   4 #include "bcm2835-rpi.dtsi"
   5 #include "bcm2835-rpi-common.dtsi"
   6 #include "bcm283x-rpi-led-deprecated.dtsi"
   7 #include "bcm283x-rpi-usb-host.dtsi"
   8
   9 / {
  10         compatible = "raspberrypi,model-a", "brcm,bcm2835";
  11         model = "Raspberry Pi Model A";
  12
  13         memory@0 {
  14                 device_type = "memory";
  15                 reg = <0 0x10000000>;
  16         };
  17 };
  18
  19 &gpio {
  20         /*
  21          * Taken from Raspberry-Pi-Rev-1.0-Model-AB-Schematics.pdf
  22          * RPI00021 sheet 02
  23          *
  24          * Legend:
  25          * "FOO" = GPIO line named "FOO" on the schematic
  26          * "FOO_N" = GPIO line named "FOO" on schematic, active low
  27          */
  28         gpio-line-names = "SDA0",
  29                           "SCL0",
  30                           "SDA1",
  31                           "SCL1",
  32                           "GPIO_GCLK",
  33                           "CAM_GPIO1",
  34                           "LAN_RUN",
  35                           "SPI_CE1_N",
  36                           "SPI_CE0_N",
  37                           "SPI_MISO",
  38                           "SPI_MOSI",
  39                           "SPI_SCLK",
  40                           "", /* GPIO12 */
  41                           "", /* GPIO13 */
  42                           /* Serial port */
  43                           "TXD0",
  44                           "RXD0",
  45                           "STATUS_LED_N",
  46                           "GPIO17",
  47                           "GPIO18",
  48                           "", /* GPIO19 */
  49                           "", /* GPIO20 */
  50                           "GPIO21",
  51                           "GPIO22",
  52                           "GPIO23",
  53                           "GPIO24",
  54                           "GPIO25",
  55                           "", /* GPIO26 */
  56                           "CAM_GPIO0",
  57                           /* Binary number representing build/revision */
  58                           "CONFIG0",
  59                           "CONFIG1",
  60                           "CONFIG2",
  61                           "CONFIG3",
  62                           "", /* GPIO32 */
  63                           "", /* GPIO33 */
  64                           "", /* GPIO34 */
  65                           "", /* GPIO35 */
  66                           "", /* GPIO36 */
  67                           "", /* GPIO37 */
  68                           "", /* GPIO38 */
  69                           "", /* GPIO39 */
  70                           "PWM0_OUT",
  71                           "", /* GPIO41 */
  72                           "", /* GPIO42 */
  73                           "", /* GPIO43 */
  74                           "", /* GPIO44 */
  75                           "PWM1_OUT",
  76                           "HDMI_HPD_P",
  77                           "SD_CARD_DET",
  78                           /* Used by SD Card */
  79                           "SD_CLK_R",
  80                           "SD_CMD_R",
  81                           "SD_DATA0_R",
  82                           "SD_DATA1_R",
  83                           "SD_DATA2_R",
  84                           "SD_DATA3_R";
  85
  86         pinctrl-names = "default";
  87         pinctrl-0 = <&gpioout &alt0 &i2s_alt2>;
  88
  89         /* I2S interface */
  90         i2s_alt2: i2s_alt2 {
  91                 brcm,pins = <28 29 30 31>;
  92                 brcm,function = <BCM2835_FSEL_ALT2>;
  93         };
  94 };
  95
  96 &hdmi {
  97         hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
  98         power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
  99         status = "okay";
 100 };
 101
 102 &led_act {
 103         gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
 104 };
 105
 106 &pwm {
 107         pinctrl-names = "default";
 108         pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
 109         status = "okay";
 110 };
 111
 112 &sdhost {
 113         pinctrl-names = "default";
 114         pinctrl-0 = <&sdhost_gpio48>;
 115         bus-width = <4>;
 116         status = "okay";
 117 };
 118
 119 &uart0 {
 120         pinctrl-names = "default";
 121         pinctrl-0 = <&uart0_gpio14>;
 122         status = "okay";
 123 };