proper_device_tree_design

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proper_device_tree_design [2018/11/18 10:31] – [Proper use of .dtsi files] rpjdayproper_device_tree_design [2018/11/18 10:46] (current) – [imx6ul-tx6ul-mainboard.dts] rpjday
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 </file> </file>
  
 +===== Examples of /delete-property/ =====
  
 +==== imx6qp.dtsi ====
 +
 +<file>
 +#include "imx6q.dtsi"
 +
 +/ {
 +        soc {
 +        
 +        ...
 +        
 +};
 +
 +&fec {
 +        /delete-property/interrupts-extended;
 +        interrupts = <0 118 IRQ_TYPE_LEVEL_HIGH>,
 +                     <0 119 IRQ_TYPE_LEVEL_HIGH>;
 +};
 +</file>
 +
 +==== imx6ul-tx6ul-mainboard.dts ====
 +
 +<file>
 +#include "imx6ul.dtsi"
 +#include "imx6ul-tx6ul.dtsi"
 +
 +/ {
 +        model = "Ka-Ro electronics TXUL-0010 Module on TXUL Mainboard";
 +        compatible = "karo,imx6ul-tx6ul", "fsl,imx6ul";
 +
 +        aliases {
 +                lcdif_24bit_pins_a = &pinctrl_disp0_3;
 +                mmc0 = &usdhc1;
 +                /delete-property/ mmc1;
 +                serial2 = &uart3;
 +                serial4 = &uart5;
 +        };
 +        /delete-node/ sound;
 +};
 +
 +...
 +
 +&usdhc1 {
 +        pinctrl-0 = <&pinctrl_usdhc1>;
 +        non-removable;
 +        /delete-property/ cd-gpios;
 +        cap-sdio-irq;
 +};
 +
 +&uart1 {
 +        pinctrl-0 = <&pinctrl_uart1>;
 +        /delete-property/ uart-has-rtscts;
 +};
 +
 +&uart2 {
 +        pinctrl-0 = <&pinctrl_uart2>;
 +        /delete-property/ uart-has-rtscts;
 +        status = "okay";
 +};
 +</file>
 +
 +==== imx6ulz.dtsi ====
 +
 +<code>
 +#include "imx6ull.dtsi"
 +
 +/ {
 +        aliases {
 +                /delete-property/ ethernet0;
 +                /delete-property/ ethernet1;
 +                /delete-property/ i2c2;
 +                /delete-property/ i2c3;
 +                /delete-property/ serial4;
 +                /delete-property/ serial5;
 +                /delete-property/ serial6;
 +                /delete-property/ serial7;
 +                /delete-property/ spi2;
 +                /delete-property/ spi3;
 +        };
 +};
 +
 +/delete-node/ &adc1;
 +/delete-node/ &can1;
 +/delete-node/ &can2;
 +/delete-node/ &ecspi3;
 +/delete-node/ &ecspi4;
 +/delete-node/ &epit2;
 +/delete-node/ &gpt2;
 +/delete-node/ &i2c3;
 +/delete-node/ &i2c4;
 +/delete-node/ &pwm5;
 +/delete-node/ &pwm6;
 +/delete-node/ &pwm7;
 +/delete-node/ &pwm8;
 +/delete-node/ &uart5;
 +/delete-node/ &uart6;
 +/delete-node/ &uart7;
 +/delete-node/ &uart8;
 +</code>
  • proper_device_tree_design.1542537062.txt.gz
  • Last modified: 2018/11/18 10:31
  • by rpjday