Have you gone through the bindings documentation for spi driver? What are the pin configuration for your hardware sli? Br
On Fri, 18 Aug 2023 at 6:40 PM, Muni Sekhar <munisekhar...@gmail.com> wrote: > Dear Linux Kernel Community, > > I hope this email finds you well. > I am writing to seek your guidance and assistance regarding the > development of a new SPI device driver for our hardware system. > Our hardware, implemented on an FPGA, features an SPI interface that > acts as a Master, offering two distinct modes for data transmission > and reception. > This hardware is connected to the Linux system via the PCIe bus. > This hardware offers two modes for communication: using registers for > debugging purposes and utilizing DMA channels for high-bandwidth > applications. Both modes leverage the PCIe interface for data > exchange. > The hardware boasts several noteworthy features, including support for > multiple speed settings, SPI port switching, configurable sample edge > programming, and adjustable SPI transfer sizes. > > As we embark on the task of developing a device driver for this SPI > interface, we intend to follow best practices and leverage existing > resources within the Mainline Linux kernel tree. To achieve this, we > plan to refer to and adapt existing SPI drivers. > We kindly request your recommendations on which existing SPI driver > within the Mainline Linux kernel tree would serve as the most suitable > reference for our endeavor. Your invaluable expertise would greatly > aid us in ensuring the success of this driver development process. > Thank you for your time and consideration. We eagerly anticipate your > guidance and insights. > > Warm regards, > Sekhar > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies@kernelnewbies.org > https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >
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