[RISC-V][Devboards Program] August 7, 2025 - East-friendly

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Greg Sterling

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Aug 6, 2025, 3:28:22 PMAug 6

to RISC-V Development Board Program

All,

Our next meeting will be tomorrow, August 7, 2025. Local times can be found by logging into LFX at https://lfx.linuxfoundation.org/tools/ or going to the Tech Meetings calendar at https://tech.riscv.org/calendar/.

The agenda will focus on standard topics:

Program updates from RISC-V
Board and Project updates
Future Board Program Discussion
What's cool? (time permitting)

Any topics, updates, or information can as always either be raised at the beginning of the meeting or by adding it to our agenda document, Dev Board Group Minutes. Please note we have migrated to Confluence for meeting minutes. Please reach out if you have any issues viewing the meeting minutes.

Thanks, and I look forward to seeing you tomorrow!

Greg Sterling (RISC-V International)

Greg Sterling

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Aug 7, 2025, 11:08:45 AMAug 7

to RISC-V Development Board Program

Thanks everybody for another great meeting! Meeting minutes are provided below.

Greg Sterling (RISC-V International)

Board Updates:

· Beagle, SiFive, StarFive, RIOS, Allwinner, Microchip, Microsemi, SpacemIT, Milk-V

· https://linuxgizmos.com/waveshare-expands-esp32-p4-platform-with-compact-poe-ready-dev-kit-variant/

· https://www.cnx-software.com/2025/08/07/visionfive-2-lite-low-cost-risc-v-sbc/

o Kickstarter Linkhttps://www.kickstarter.com/projects/starfive/visionfive-2-lite-unlock-risc-v-sbc-at-199

· Three high-performance RISC-V processors to watch - link

o UltraRISC - DP1000

§ CPU

§ 8x 64-bit RISC-V UR-CP100 “RV64GCBHX” cores up to 2.0 GHz

§ Two 4x core cluster design with 4MB L3 cache each, and a total of 16MB cache.

§ SPECCPU2006 single-core INT @ 10.4/GHz; single-core FP @ 12/GHz

§ Fully RVA22 compliant, and “Compliant with RVA23 excluding V extension.”

§ Supports Hardware Virtualization, RISC-V RV64 ISA H(v1.0) Extension

§ Memory – UDIMM DDR4-3200 ECC memory support, up to 64GB

§ Networking – GMAC

§ High-speed expansion interfaces

§ 1x PCIe 4.0 x16

§ 2x PCIe 4.0 x4

§ Other I/Os – 1x QSPI, 2x SPI, 4x I2C, 4x UART, 40x GPIO, eSPI/LPC

o Zhihe A210

§ CPU

§ 8-core 64-bit RISC-V CPU

§ Unified Computing Architecture (UCA) with unified memory and unified operators for enhanced computational efficiency.

§ Fully compatible with the RVA23 Profile

§ Up to 12 TOPS (INT8) AI inference capability (they don’t seem to use a separate NPU)

§ Memory – DDR memory optimized with large-capacity storage to support Mixture of Experts (MoE) model architectures (e.g., DeepSeek).

o SpacemiT K3

§ X100 core specifications:

§ RVA23 64-bit RISC-V processor

§ 2.5 TOPS @ INT8 AI computing power compliant with RISC-V IME extension

§ RISC-V Vector 1.0 standard, providing 256-bit vector computing bandwidth

§ Supports RISC-V Vector Crypto extension

§ Performance

§ 2.5GHz @ 12nm

§ 9.0 SPECint2006/GHz with SpacemIT LLVM Compiler

§ 7.7 CoreMarks/MHz with SpacemIT LLVM Compiler

§ Microarchitecture

§ 12-stage four-issue out-of-order execution

§ Multi-core, multi-cluster processor, up to 64 cores

§ Support intra-cluster and inter-cluster consistency

§ Supports virtualization

§ Supports RISC-V Hypervisor extension

§ Supports AIA specification

§ Supports forming a complete virtualization system in combination with IOMMU

§ Other Server-level Features

§ Support RAS features and RISC-V standard RERI information reporting

§ Capable of providing a secure computing environment and resisting Meltdown and Spectre attacks

§ Support instruction trace for efficient program trajectory tracking

Program Updates:

· oreboot

· Firmware

· Operating System

o BSD - FreeBSD, NetBSD

§ https://www.phoronix.com/news/NetBSD-11.0-Released

o Linux - AlmaLinux, Arch Linux, Alpine Linux, Debian, Fedora, SUSE, Canonical

§ https://www.notebookcheck.net/Debian-13-Trixie-OS-officially-adds-64-bit-RISC-V-support.1077476.0.html

§ Current release supports RVA20

§ To support RVA23 requires hardware for builder/test systems

§ DietPi 9.15 Released - link

§ New images for Orange Pi 3 (non LTS version)

§ New script converting Debian Bookworm to Trixie (Trixie scheduled on 2025-08-09)

§ NanoPi R5C: MAC address is now static (also after rebooting)

§ Moonlight (GUI): Unlocked for all ARM and RISC-V systems (excluding ARMv6 RPi)

§ Unbound: Improvements of installation and cron-job setting

§ Ubuntu

§ Adding support for FML13v01, and Pine64 Star64 to 24.04 release

o Kernel

§ https://www.cnx-software.com/2025/07/28/linux-6-16-release-main-changes-arm-risc-v-and-mips-architectures/

§ https://www.phoronix.com/news/T-HEAD-GPU-Power-Sequence

o Android - AOSP

o OpenEuler, seL4, NixOS, R9, Managarm

· Images

o Development - Gentoo, Fedoravforce.org (Mirror US)

· Applications

· Virtualization

· RISC-V

o Do we like the current Confluence Doc for notes or would we like to go back to the Google Doc?

o NA Summit - registration

§ DevZone Demo Suggestions

o Developer Board Status

§ Monthly Status Report

§ Final Status Report

o Dev Boards

§ SiFive Premiere P550

§ Milk-V Megrez

§ Banana Pi F3/Orange Pi RV2

§ Check on ESWIN P550 cost and availability ($100’ish?)

What’s cool?:

· nVidia’s CUDA to support RISC-V - link, link and link

· PLCT got ROCm running on SG2044 (Radeon RX 7900XTX):

o https://docs.google.com/presentation/d/1huYCnf3TGJkY6iqMFutoQvg8QqD4b2TyjAEtBMdLgb8/edit?slide=id.g36d9ae8c3f3_37_0#slide=id.g36d9ae8c3f3_37_0

o https://github.com/revyos/sg2044-vendor-kernel/commits/sg2044-upstream-v6.15.y

o https://github.com/orgs/revyos-rocm/repositories

· https://cloud-v.co/risc-v-cicd

o Github/Gitlab runners are available for 90 days. Reach out to clo...@10xengineers.ai if you need the 90 day restriction lifted.

Miscellaneous notes:

· https://www.tomshardware.com/tablets/worlds-first-risc-v-tablet-is-finally-fully-baked-pinetab-v-now-ships-with-completely-functional-linux-for-usd149