I haven’t used the Q8 board, but I have tested the ZU3EG BSP on at least 3
different processor variants (including the dual-core CG variant) across about
5 boards and it has worked without issue. Be warned that u-boot doesn’t support
elf64 (or didn’t last time I checked), so you’ll need to package it as a raw
binary inside a u-boot image. This is the script I use to accomplish that:
$ cat create_image.sh
#!/bin/sh
aarch64-rtems6-objcopy -O binary "$1" rtems.bin
gzip -f rtems.bin
ENTRY=`aarch64-rtems6-nm $1 |grep \ _start|sed -e 's/ .*//'`
mkimage -A arm64 -O rtems -T kernel -C gzip -a 0x$ENTRY -e 0x$ENTRY -n
"$(basename $1)" -d rtems.bin.gz rtems.img
I tend to load the image via TFTP for testing to avoid write cycles on the
flash and for faster turnaround during development.
I suspect that the Q8 might have some system control and other interfaces
exposed via the FPGA fabric similar to the CFC-400X, so that will need some
extra work to support properly.
Let me know if you have any further questions.
Kinsey
From: users On Behalf Of Schweikhardt, Jens
(TSPCE6-TL5)
Sent: Thursday, March 30, 2023 4:03 AM
To: users@rtems.org
Subject: Anyone using Xiphos Q8 (Zynq UltraScale+ MPSoc)?
Hello, world
Is anyone using Xiphos’s Q8 boards? It features a Zynq UltraScale+ MPSoC and
out of the box comes with an SDK for Yocto Linux 2.5 (sumo).
I realize RTEMS has some support for a BSP using the Zynq UltraScale+.
I wonder what the challenges would be using RTEMS instead of Linux.
Is it more than replacing a Linux rootfs image with an RTEMS application image,
providing a device tree and booting via Xilinx’s uboot?
Regards,
Jens
Tesat-Spacecom GmbH & Co. KG
Sitz: Backnang; Registergericht: Amtsgericht Stuttgart HRA 270977
Persoenlich haftender Gesellschafter: Tesat-Spacecom Geschaeftsfuehrungs GmbH;
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