arch/arm/boot/dts/broadcom/bcm2835-rpi-a-plus.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-plus", "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          * This is based on the unreleased schematic for the Model A+.
  22          *
  23          * Legend:
  24          * "FOO" = GPIO line named "FOO" on the schematic
  25          * "FOO_N" = GPIO line named "FOO" on schematic, active low
  26          */
  27         gpio-line-names = "ID_SDA",
  28                           "ID_SCL",
  29                           "SDA1",
  30                           "SCL1",
  31                           "GPIO_GCLK",
  32                           "GPIO5",
  33                           "GPIO6",
  34                           "SPI_CE1_N",
  35                           "SPI_CE0_N",
  36                           "SPI_MISO",
  37                           "SPI_MOSI",
  38                           "SPI_SCLK",
  39                           "GPIO12",
  40                           "GPIO13",
  41                           /* Serial port */
  42                           "TXD0",
  43                           "RXD0",
  44                           "GPIO16",
  45                           "GPIO17",
  46                           "GPIO18",
  47                           "GPIO19",
  48                           "GPIO20",
  49                           "GPIO21",
  50                           "GPIO22",
  51                           "GPIO23",
  52                           "GPIO24",
  53                           "GPIO25",
  54                           "GPIO26",
  55                           "GPIO27",
  56                           "SDA0",
  57                           "SCL0",
  58                           "", /* GPIO30 */
  59                           "", /* GPIO31 */
  60                           "CAM_GPIO1", /* GPIO32 */
  61                           "", /* GPIO33 */
  62                           "", /* GPIO34 */
  63                           "PWR_LOW_N", /* GPIO35 */
  64                           "", /* GPIO36 */
  65                           "", /* GPIO37 */
  66                           "USB_LIMIT", /* GPIO38 */
  67                           "", /* GPIO39 */
  68                           "PWM0_OUT", /* GPIO40 */
  69                           "CAM_GPIO0", /* GPIO41 */
  70                           "", /* GPIO42 */
  71                           "", /* GPIO43 */
  72                           "", /* GPIO44 */
  73                           "PWM1_OUT", /* GPIO45 */
  74                           "HDMI_HPD_N",
  75                           "STATUS_LED",
  76                           /* Used by SD Card */
  77                           "SD_CLK_R",
  78                           "SD_CMD_R",
  79                           "SD_DATA0_R",
  80                           "SD_DATA1_R",
  81                           "SD_DATA2_R",
  82                           "SD_DATA3_R";
  83
  84         pinctrl-names = "default";
  85         pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
  86
  87         /* I2S interface */
  88         i2s_alt0: i2s_alt0 {
  89                 brcm,pins = <18 19 20 21>;
  90                 brcm,function = <BCM2835_FSEL_ALT0>;
  91         };
  92 };
  93
  94 &hdmi {
  95         hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
  96         power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
  97         status = "okay";
  98 };
  99
 100 &led_act {
 101         gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
 102 };
 103
 104 &leds {
 105         led-pwr {
 106                 label = "PWR";
 107                 gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
 108                 default-state = "keep";
 109                 linux,default-trigger = "default-on";
 110         };
 111 };
 112
 113 &pwm {
 114         pinctrl-names = "default";
 115         pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
 116         status = "okay";
 117 };
 118
 119 &sdhost {
 120         pinctrl-names = "default";
 121         pinctrl-0 = <&sdhost_gpio48>;
 122         bus-width = <4>;
 123         status = "okay";
 124 };
 125
 126 &uart0 {
 127         pinctrl-names = "default";
 128         pinctrl-0 = <&uart0_gpio14>;
 129         status = "okay";
 130 };