topic Re: Try PCI linux driver in T2080rdb. Howto? in T-Series

Try PCI linux driver in T2080rdb. Howto?

manolo_ — Tue, 12 Jan 2016 12:28:09 GMT

Hi guys,

I want to do a PCI driver that runs in T2080RDB in order to learn how to do a proper driver. I want to try the device which is in the board (Crypto Coprocessor c293 ). I am having some questions:

Are there any driver for this coprocessor in Linux? I am using the platform Yocto that is given by freescale in order to create my Linux.

If there is not, how can I try this device? Any idea how to start? I just want to access to any memory space or register to check if my driver is right.

Best regards.

Re: Try PCI linux driver in T2080rdb. Howto?

bpe — Wed, 13 Jan 2016 07:01:16 GMT

Well, the crypto processor driver is probably not the simplest PCI device driver. It is built

off-kernel and is part of a separate package. To review it's source code, unpack pkc-host SDK package,

top-level routines are defined in fsl-c2x0_driver.c Additional details can be found here:

https://freescale.sdlproducts.com/LiveContent/content/en-US/QorIQ_SDK_1.9/GUID-EF081117-F5D7-4FB8-AA97-51C300DD8860

Have a great day,
Platon

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Re: Try PCI linux driver in T2080rdb. Howto?

manolo_ — Wed, 13 Jan 2016 10:28:09 GMT

Thanks very much. does that mean that when I build a operative system with yocto, the coprocessor is not working? do I need to implement a driver in order to use this processor?

Re: Try PCI linux driver in T2080rdb. Howto?

bpe — Wed, 13 Jan 2016 12:32:10 GMT

You should follow the instructions from the document I mentioned above to

enable the crypto processor support on your board.

Have a great day,
Platon