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Zedboard dma test

This project is aimed to test the xilinx dma IP instanced in the PL. It has been instanced with scatter-gather interface and with the IP streaming interfaces connected back-to-back. For better understanding the dma behaviour, ILA have been added for any interface.

U-boot.elf

The u-boot.elf here used has been cloned from the u-boot repository, master branch. Just types

$ make zynq_zed_defconfig
$ make

The u-boot file u-boot in the main directory of the cloned u-boot repository must be used as u-boot.elf.

Linux Kernel

The linux kernel used has been cloned from xilinx linux kernel with tag xilinx-v2015.1. Just types

$ make ARCH=arm xilinx_zynq_defconfig
$ make ARCH=arm menuconfig

Include the xilinx dma driver and also the xilinx dma test. Then, compile the kernel with:

$ make ARCH=arm UIMAGE_LOADADDR=0x8000 uImage

A maintained EDL version of working linux kernel is also here: EDL linux branch

Devicetree

The devicetree here used has been cloned from xilinx devicetree with tag xilinx-v2015.1. Use the cloned directory as reference for the Xilinx tools reference in Xilinx SDK tool.

Vivado

These instructions needs to be followed to build the fpga bitstream.

  • Open a new project for the Zedboard in vivado and call it fpga
  • Create a Block Design and call it system
  • from the tcl command bar types: source ../__reference_stuff__/whole_design.tcl (for 2015.2 vivado version) or source ../__reference_stuff__/whole_design_2015.4.tcl (for 2015.4 vivado version)
  • use the ../__reference_stuff__/sytem_wrapper.v as top design.
  • Generate the bitstream
  • export the hardware (with the bitstream flagged).
  • launch SDK
  • From SDK, set the repository as in Devicetree Section here above.
  • Create a New Application and call it FSBL. Use the Zynq FSBL as template.
  • Create a New Board Support Package in such a way to create the devicetree.
  • From the boot_image directory types:
> ./launch_bootgen
> ./start_script_device_tree
  • Now in the boot_image you should have BOOT.bin, devicetree.dtb. Put them with the uImage as in Linux Kernel Section into the FAT partition of the SD card.

Development

Want to contribute? Great!

Todos

TBD

License

TBD