I need to use flashrom utility for flashing my bios rom. And flashrom need spi and spi device should be in spidev0.0 how can i do that in pine64? I searched a lot but i couldnt found. Someone said i should change device tree but i dont know how. Thanks a lot.
There are two ways to go about this. The SPI interface is by default no configured on the pins, because UART3/4 are mapped there. If you are not using Armbian, you need to manually change your devicetree to configure SPI pins. If you are using Armbian, you can use the boot-time overlay via your ArmbianEnv configugration as outlined here:
http://forum.pine64.org/showthread.php?t...3#pid25663
I did that but still there is nothing like spidev0.0 under /dev directory