Good morning, On Sat, 1 Mar 2025 at 01:49, Felix Kuhlmann <felix-kuhlmann@xxxxxx> wrote: > > Hello everybody, > > I have a question about the AMD Xilinx remoteproc driver. > In the past, the remoteproc driver for Xilinx products weren't part of > mainline. To use them, Xilinx required users to use their own fork, > linux-xlnx. > > This tree contained the driver necessary for using remoteproc with the > R5 cores on the Zynq-family of devices. I have managed to configure the > device tree of my ZynqMP board so that the driver functions correctly. > > This is where the problem lies: I have recently updated the kernel > version to 6.14, using mainline since Xilinx now follows a > "mainline-only" approach. There, I have discovered that the interfaces > inside the driver that get information from the device-tree have changed > significantly. So much in fact, that I have to rewrite the remoteproc > section of my device-tree. > That is expected. > However, there is no updated documentation provided by Xilinx, and with > their most recent documentation, it works on linux-xlnx 5.15, but not on > 6.14 with the driver in its current form. > The driver itself is fairly simple and aligned with the other remoteproc drivers. Even without documentation, it should be relatively easy to see what is expected from the DT. The bindings [1] are up to date and should also provide some guidance. Mathieu [1]. https://elixir.bootlin.com/linux/v6.13.5/source/Documentation/devicetree/bindings/remoteproc/xlnx,zynqmp-r5fss.yaml > Asking in the AMD help forum rarely yields any usable answer, that's why > wanted to ask you if there is any information present that I have > overlooked thus far. > > Looking at the entry under the "Documentation" folder also hasn't > provided me with a satisfying answer, since the driver stopped at random > parts during initialization. > > Thank you in advance and kind regards, > > Felix >
