On Sun, Jul 15, 2018 at 04:38:51PM -0400, Jacob Feder wrote: > On Sun, Jul 15, 2018 at 09:44:58PM +0200, Greg KH wrote: > > On Sun, Jul 15, 2018 at 12:34:28PM -0400, Jacob Feder wrote: > > > Hi, > > > I have updated this with the recommended changes. I haven't tried out the > > > UIO though. It will be a pretty significant undertaking and I don't want > > > to spend the time on it unless there is a specific reason you think it > > > will be faster. > > > > > > Thanks all. > > > > > > Cheers, > > > Jacob > > > > > > This IP core has read and write AXI-Stream FIFOs, the contents of which can > > > be accessed from the AXI4 memory-mapped interface. This is useful for > > > transferring data from a processor into the FPGA fabric. The driver creates > > > a character device that can be read/written to with standard > > > open/read/write/close. > > > > > > See Xilinx PG080 document for IP details. > > > > > > https://www.xilinx.com/support/documentation/ip_documentation/axi_fifo_mm_s/v4_1/pg080-axi-fifo-mm-s.pdf > > > > > > The driver currently supports only store-forward mode with a 32-bit > > > AXI4 Lite interface. DOES NOT support: > > > - cut-through mode > > > - AXI4 (non-lite) > > > > > > Signed-off-by: Jacob Feder <jacobsfeder@xxxxxxxxx> > > > --- > > > Documentation/devicetree/bindings/axisfifo.txt | 89 ++ > > > > This should live in the directory with the driver until it gets > > accepted into the "main" part of the kernel tree. > > > > Ok will do. > > > > drivers/staging/axisfifo/axis-fifo.c | 1242 ++++++++++++++++++++++++ > > > 2 files changed, 1331 insertions(+) > > > create mode 100644 Documentation/devicetree/bindings/axisfifo.txt > > > create mode 100644 drivers/staging/axisfifo/axis-fifo.c > > > > No Makefile or Kconfig to actually build the driver? > > > > Please fix that up so we can at least test-build the thing :) > > > > thanks, > > > > greg k-h > > Oh... how do I do that exactly? :) I am currently building it with > Petalinux (Xilinx's wrapper for Yocto). I'm guessing there is a makefile > somewhere in the Yocto directory I can give you? No, it needs to be in the directory of the driver itself. Look at how all of the other drivers/staging/*/Makefile look, same for Kconfig. If you need help, just ask and I can easily make one up for you. thanks, greg k-h _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
