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Device trees for PHYTEC products consist of a board dts file which represents the combination of a PHYTEC SOM and PHYTEC carrier board, and expansion boards and other connectable hardware. The board dts file includes other dtsi: the SOM dtsi file, the carrier board dtsi file, the SOM variant dtsi file, and expansion board dtsi files. These dtsi files may be split into common dtsi files to avoid code duplication. The SOM dtsi represents all of the devices that are located on the SOM, such as eMMC flash, through device tree definitions in the file or in other dtsi files that it includes, such as the processor dtsi file. Devices whose signals are routed through the SOM but whose hardware is located on the carrier board, such as SD/MMC, are defined in the carrier board dtsi file or in other dtsi files that it includes. We recommend that you enable or disable the devices defined in these files in the corresponding board dts file (e.g. am57xx-phycore-rdk.dts for the default kit minimal configuration or am57xxam572x-phycore-rdk-10203111i41300111i.dts for that specific SOM variantthe PCM-057-41300111I SOM configuration).

Note
iconfalse
titleExample:

To disable a peripheral such as EEPROM in the default kit, change the status of the i2c_eeprom in arch/arm/boot/dts/am57xx-phycore-rdk.dts from "okay" to "disabled":

Code Block
&i2c_eeprom {
	status = "disabled";
};


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