On Fri, Jul 26, 2024 at 12:08:19PM +0530, Nava kishore Manne wrote: > Adds sysfs interface as part of the of-fpga-region. This newly added > sysfs interface uses Device Tree Overlay (DTO) files to configure/reprogram > an FPGA while an operating system is running.This solution will not change > the existing sequence When a DT overlay that targets an FPGA Region is > applied. > - Disable appropriate FPGA bridges. > - Program the FPGA using the FPGA manager. > - Enable the FPGA bridges. > - The Device Tree overlay is accepted into the live tree. > - Child devices are populated. > > When the overlay is removed, the child nodes will be removed, and the FPGA > Region will disable the bridges. > > Usage: > To configure/reprogram an FPGA region: > echo "fpga.dtbo" > /sys/class/fpga_region/<region>/device/load IIRC, last time we are considering some generic interface for both OF & non-OF FPGA region, but this is still OF specific. Thanks, Yilun
