#include "am57xx-beagle-x15-revc.dts" #include "bbx15-pins.h" // https://pastebin.com/raw/tGcpaiyg #include "bbx15-gpios.h" // https://pastebin.com/raw/rELLdW1k &{/chosen} { base_dtb = "am57xx-beagle-x15-custom.dts"; // <-- fill in name of this file base_dtb_timestamp = __TIMESTAMP__; }; // uncomment this line if you want the two ethernet ports to be connected via // internal switch instead of being two independent ports: &mac { /delete-property/ dual_emac; }; //====== EXAMPLE: gpios ====================================== // // For more documentation about gpio-of-helper see: // https://github.com/mvduin/overlay-utils/blob/master/gpio-demo.dtsi // (but note that this is for the BBB and uses different pinmux syntax) / { // Any name is fine as long as it doesn't conflict with existing nodes gpio-demo { compatible = "gpio-of-helper"; pinctrl-names = "default"; pinctrl-0 = <&gpio_demo_pins>; P16.36 { gpio = ; input; dir-changeable; }; P16.43 { gpio = ; input; dir-changeable; }; }; }; &dra7_pmx_core { gpio_demo_pins: gpio-demo { pinctrl-single,pins = < DRA7XX_CORE_IOPAD( P16_36, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P16.36 / gpio 6.03 DRA7XX_CORE_IOPAD( P16_43, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P16.43 / gpio 6.04 >; }; }; //====== EXAMPLE: eCAP pwm output ====================================== // enable subsystem containing ecap0 &epwmss0 { status = "okay"; }; // enable ecap0 and configure its pin &ecap0 { status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&ecap0_pins>; }; &dra7_pmx_core { // pin config block for ecap0 ecap0_pins: ecap0 { pinctrl-single,pins = < DRA7XX_CORE_IOPAD( P18_12, PIN_OUTPUT_PULLDOWN | MUX_MODE10 ) // P18.12 ecap0 >; }; }; //====== EXAMPLE: spi ================================================== &mcspi3 { // enable spi controller and mux pins: status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&mcspi3_pins>; // create spi slave device for chip select 0: spidev@0 { reg = <0>; compatible = "spidev"; spi-max-frequency = <24000000>; spi-cpol; spi-cpha; // configure spi mode 3 by default symlink = "spi/2.0"; // create symlink at /dev/spi/2.0 }; // create spi slave device for chip select 1: spidev@1 { reg = <1>; compatible = "spidev"; spi-max-frequency = <24000000>; spi-cpol; spi-cpha; // configure spi mode 3 by default symlink = "spi/2.1"; // create symlink at /dev/spi/2.1 }; }; &dra7_pmx_core { mcspi3_pins: mcspi3 { // choose an option: #if 1 // spi 2 ioset 4 pinctrl-single,pins = < DRA7XX_CORE_IOPAD( P16_34, PIN_INPUT_PULLUP | MUX_MODE3 ) // P16.34 spi 2 clk DRA7XX_CORE_IOPAD( P16_04, PIN_OUTPUT_PULLUP | MUX_MODE3 ) // P16.04 spi 2 d1 (mosi) DRA7XX_CORE_IOPAD( P16_33, PIN_INPUT_PULLUP | MUX_MODE3 ) // P16.33 spi 2 d0 (miso) DRA7XX_CORE_IOPAD( P16_03, PIN_OUTPUT_PULLUP | MUX_MODE3 ) // P16.03 spi 2 cs0 DRA7XX_CORE_IOPAD( P16_05, PIN_OUTPUT_PULLUP | MUX_MODE3 ) // P16.05 spi 2 cs1 >; #else // spi 2 ioset 6 pinctrl-single,pins = < DRA7XX_CORE_IOPAD( P17_04, PIN_INPUT_PULLUP | MUX_MODE1 ) // P17.04 spi 2 clk DRA7XX_CORE_IOPAD( P17_07, PIN_OUTPUT_PULLUP | MUX_MODE1 ) // P17.07 spi 2 d1 (mosi) DRA7XX_CORE_IOPAD( P17_36, PIN_INPUT_PULLUP | MUX_MODE1 ) // P17.36 spi 2 d0 (miso) DRA7XX_CORE_IOPAD( P17_08, PIN_OUTPUT_PULLUP | MUX_MODE1 ) // P17.08 spi 2 cs0 DRA7XX_CORE_IOPAD( P17_33, PIN_OUTPUT_PULLUP | MUX_MODE1 ) // P17.33 spi 2 cs1 >; #endif }; };