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Andre Baron

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    Andre Baron reacted to richardk in RK3328 - how to enable SPI   
    Just to summarize:
     
    1. Use dtc to de-compile the existing rockchip-spi-spidev.dtbo to .dts:
        dtc -I dtb -O dts /boot/dtb/rockchip/overlay/rockchip-spi-spidev.dtbo -o rockchip-spi-spidev.dts
    2. Edit the resulting rockchip-spi-spidev.dts and change instances of ff1c to ff19, and 3399 to 3328
    3. (optional?) remove references to spi1, spi2, spi3
    4. Compile rockchip-spi-spidev.dts back to dtbo
        dtc -I dts -O dtb rockchip-spi-spidev.dts -o /boot/dtb/rockchip/overlay/rockchip-spi-spidev.dtbo
    5. Extract rockchip-fixup.script from /boot/dtb/rockchip/overlay/rockchip-fixup.scr
        (just use a text editor, and delete everything before "# overlays fixup script")
    6. Edit rockchip-fixup.script and change instances of ff1c to ff19
    7. Recompose rockchip-fixup.scr
       mkimage -A arm -T script -C none -d rockchip-fixup.script /boot/dtb/rockchip/overlay/rockchip-fixup.scr
     
    Now, you can use armbian-config to add spidev, and reboot.
     

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