enable SPI

Hello everyone
I am new in this field, I try to find out how can I enable spidev. I already saw that in the SPI is active in the xilinx_zynq_defconfig file.
Can anyone guide me how can I enable Spidev ???
I am using 7z020 board.
regards
one update Now i know I have to change my dts file but how?

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0 zedhed over 10 years ago

Hi Sana,

My recommendation would be to start with a devicetree that is known to work, remove the things that you know will not be needed, and test it before adding in your SPI entry.

Creating a devicetree by hand from scratch is a daunting task since the kernel does not offer you much feedback or guidance when something goes wrong. It would be best to start with something that is known to work and make small changes to build up to what you want.

A good place to start would be one of the Official releases from the Xilinx Wiki:

http://www.wiki.xilinx.com/Zynq+2015.2+Release

This comes with a devicetree that works on ZedBoard that you can decompile and see the inner workings of a known good starting point.

Regards,

-Kevin
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0 zedhed over 10 years ago

Hi Sana,

My recommendation would be to start with a devicetree that is known to work, remove the things that you know will not be needed, and test it before adding in your SPI entry.

Creating a devicetree by hand from scratch is a daunting task since the kernel does not offer you much feedback or guidance when something goes wrong. It would be best to start with something that is known to work and make small changes to build up to what you want.

A good place to start would be one of the Official releases from the Xilinx Wiki:

http://www.wiki.xilinx.com/Zynq+2015.2+Release

This comes with a devicetree that works on ZedBoard that you can decompile and see the inner workings of a known good starting point.

Regards,

-Kevin
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