// SPDX-License-Identifier: GPL-2.0 /dts-v1/; #include "bcm2835.dtsi" #include "bcm2835-rpi.dtsi" #include "bcm283x-rpi-usb-host.dtsi" / { compatible = "raspberrypi,model-a", "brcm,bcm2835"; model = "Raspberry Pi Model A"; leds { act { gpios = <&gpio 16 GPIO_ACTIVE_LOW>; }; }; }; &gpio { /* * Taken from Raspberry-Pi-Rev-1.0-Model-AB-Schematics.pdf * RPI00021 sheet 02 * * Legend: * "NC" = not connected (no rail from the SoC) * "FOO" = GPIO line named "FOO" on the schematic * "FOO_N" = GPIO line named "FOO" on schematic, active low */ gpio-line-names = "SDA0", "SCL0", "SDA1", "SCL1", "GPIO_GCLK", "CAM_GPIO1", "LAN_RUN", "SPI_CE1_N", "SPI_CE0_N", "SPI_MISO", "SPI_MOSI", "SPI_SCLK", "NC", /* GPIO12 */ "NC", /* GPIO13 */ /* Serial port */ "TXD0", "RXD0", "STATUS_LED_N", "GPIO17", "GPIO18", "NC", /* GPIO19 */ "NC", /* GPIO20 */ "GPIO21", "GPIO22", "GPIO23", "GPIO24", "GPIO25", "NC", /* GPIO26 */ "CAM_GPIO0", /* Binary number representing build/revision */ "CONFIG0", "CONFIG1", "CONFIG2", "CONFIG3", "NC", /* GPIO32 */ "NC", /* GPIO33 */ "NC", /* GPIO34 */ "NC", /* GPIO35 */ "NC", /* GPIO36 */ "NC", /* GPIO37 */ "NC", /* GPIO38 */ "NC", /* GPIO39 */ "PWM0_OUT", "NC", /* GPIO41 */ "NC", /* GPIO42 */ "NC", /* GPIO43 */ "NC", /* GPIO44 */ "PWM1_OUT", "HDMI_HPD_P", "SD_CARD_DET", /* Used by SD Card */ "SD_CLK_R", "SD_CMD_R", "SD_DATA0_R", "SD_DATA1_R", "SD_DATA2_R", "SD_DATA3_R"; pinctrl-0 = <&gpioout &alt0 &i2s_alt2>; /* I2S interface */ i2s_alt2: i2s_alt2 { brcm,pins = <28 29 30 31>; brcm,function = <BCM2835_FSEL_ALT2>; }; }; &hdmi { hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>; }; &pwm { pinctrl-names = "default"; pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>; status = "okay"; }; &uart0 { pinctrl-names = "default"; pinctrl-0 = <&uart0_gpio14>; status = "okay"; };