I have been trying to use the memmap kernel command line parameter in uBoot to reserve a block of memory in the HPS DDR for the FPGA to write to.
My experience is that the memmap is being ignored by the kernel.
Is memmap supported in the GSRD v16.1 kernel?
If not, what is the recommended approach to allowing the FPGA to write into the HPS DDR space without crashing the Linux kernel??