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DeviceTree problem: Enable SPI0, disable UART4

Bienxanh
in Tinkerboard

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However, Armbian is configured to provide only spidev2.0, while TinkerOS can have spidev0.0, spidev0.1, spidev2.0 and spidev2.1 all enabled at the same time as long as you disable UART4 which shares GPIO header pins with SPI0. In the TinkerOS case, there is a config tool which edits a small and straightforward text file in /boot/ containing lines such as "intf:spi0=on" or "intf:uart4=off". The corresponding Armbian file seems to be /boot/armbianEnv.txt - possibly with overlays=... lines and DTS files. There also is a tool called armbian-add-overlay to load (at runtime?) DTS files...

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