Zion

A custom Yocto / PetaLinux-based platform for Zynq-7000, Zynq UltraScale+ MPSoC, Versal, and Kria SOMs — processing system and programmable logic, engineered as one platform.

• Reproducible, Yocto-built Linux for the AMD adaptive SoC portfolio.
• Validated on Zynq-7000, Zynq UltraScale+ MPSoC, Versal AI Edge, Kria KV260 / KR260.
• Unifies the full boot chain: FSBL / PMU firmware, ATF, U-Boot, kernel, rootfs, bitstream.
• Real-time RPU domain folded into one versioned build.

PS + PL, one system

• Schematic / pin review: MIO / EMIO planning, DDR configuration, power sequencing.
• Custom FSBL and PMU firmware configuration.
• Device tree authoring for PS peripherals and PL IP (overlays per bitstream).
• Board bring-up and smoke test: memory calibration, peripheral checkout, PL configuration check.

Hardware boot, owned

• Multi-stage boot: BootROM → FSBL → ATF → U-Boot → Linux, fully customized.
• Custom bootloader: U-Boot board port, boot.scr logic, QSPI / eMMC / SD boot media strategy.
• Golden boot: fallback boot image in QSPI with multiboot register support.
• Failsafe and rollback: Zynq multiboot + watchdog-driven recovery.

PL-aware kernel

• Kernel customization on xlnx kernel trees, config hardening, mainline alignment.
• PREEMPT_RT porting and latency validation.
• Drivers for PL-attached IP: AXI DMA, AXI GPIO, custom AXI peripherals via UIO or custom kernel modules.
• V4L2 capture pipelines for MIPI CSI and PL-based ISP blocks.

Industry-specific images

• zion-robotics — ROS 2 on KR260, PL-accelerated perception, time-synchronized I/O.
• zion-industrial — Modbus, OPC UA, EtherCAT (PL-assisted), TSN networking.
• zion-automotive — SocketCAN, RT patch, gateway architectures.
• zion-medical — traceable builds, SBOM, IEC 62304-aligned workflow.
• Vision / DSP middleware: GStreamer with PL acceleration, Vitis AI runtime integration.

Bitstream-aware OTA

• A/B update system aware of both Linux images and FPGA bitstreams — atomic update.
• Golden image + golden bitstream recovery path.
• Cloud or on-prem update server, staged rollouts, delta updates.
• Signed, encrypted updates chained to a hardware root of trust.

PS/PL tooling

• Evaluation images for Kria KV260 / KR260 and ZCU boards.
• Application SDK and Yocto eSDK for your teams.
• Cross-debug: JTAG via Vivado HW manager, kgdb, gdbserver.
• Profiling: perf, LTTng, PL / PS interface utilization analysis.

RPU + bitstream

• FreeRTOS and Zephyr on the RPU (lockstep or split mode).
• OpenAMP / RPMsg communication between Linux (APU) and RTOS (RPU).
• Bitstream lifecycle: versioning, signing, packaging into the platform build.
• Runtime bitstream loading via FPGA Manager; partial reconfiguration for live PL updates.

Fuses, keys, goldens

• PL driver development (UIO / custom kernel modules) and userspace APIs.
• Co-validation: PS / PL interface stress testing and timing verification.
• Factory programming of fuses, keys, and golden images.
• Production test covering processors and fabric together.