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Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Reverse-engineering brings RK3576 NPU support to open-source Rocket driver for mainline Linux

Reverse-engineering brings RK3576 NPU support to open-source Rocket driver for mainline Linux

Rockchip RK3576 open source NPU driver

Back in 2024, we noted that the open-source driver for RK3588’s NPU by Tomeu Vizoso delivered decent performance for object detection. Since then, good progress has been made, and it’s now known as the Rocket driver in mainline Linux. However, the Rockchip RK3576 SoC is not supported by the Rocket driver in mainline yet, despite sharing a similar NPU. The good news is that Ga Hing Woo has been working on mainline Linux support for the Rockchip RK3576 NPU using the Rocket driver stack and has tested the updates on the Radxa ROCK 4D running Linux 7.1-rc5. This required some serious reverse-engineering work due to hidden registers not documented in the TRM. Ga Hing Woo (also written as Jiaxing Hu) sent us an email explaining some of the challenges: Single int8 convolution now comes out byte-exact against a CPU reference on the open stack. Getting there meant reverse-engineering the compute […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Rockchip RK3539 quad-core Cortex-A55 SoC shows up in low-cost Android 14 4K TV stick with AV1 codec support

Rockchip RK3539 quad-core Cortex-A55 SoC shows up in low-cost Android 14 4K TV stick with AV1 codec support

Rockchip RK3539 TV Stick with Voice Remote Remote Control

HS89 T15 4K Android TV stick is powered by the new Rockchip RK3539 quad-core Cortex-A55 SoC with AV1 and H.265 video codecs and HDR10 support, and is equipped with up to 4GB of RAM and a 32GB eMMC flash. The device features a male HDMI 2.1 port, WiFi 6 and Bluetooth 5.4 connectivity, a USB Type-A host port, and a USB-C port for power only, either directly from the TV or through a 5V/2A power adapter. The device also ships with a Bluetooth voice remote control. Let’s have a look at both the streaming device and the RK3539 chip itself since the datasheet is available. HS89 T15 TV stick Let’s start with the HS89 T15 TV stick’s specifications: SoC – Rockchip RK3539 CPU – Quad-core Cortex-A55 @ 1920 MHz GPU – Mali-310 VPU – 4Kp60 AV1, H.265, H.264 video decoding System Memory/Storage options 2GB RAM, 16GB eMMC flash 4GB RAM, […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Linux 7.1 Release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 7.1 Release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 7.1 release

Linus Torvalds has just released Linux 7.1 on LKML: So it’s only Sunday morning back home, but it’s Sunday afternoon where I am right now, so I’m doing the 7.1 release at the regular time – just not in the regular timezone. This obviously means that the merge window opens tomorrow, but I’ll be in yet another timezone by then, so timing will all be a bit irregular. Normally I try to front-load the merge window and do as much as possible the first few days – this time I’m not sure that will work out with my laptop and a couple of long flights without internet, but I’ve made sure that I have fetched the early pull requests (thank you – you know who you are), so I will be able to do some of it off-line. Anyway, possible slight hiccups in the merge window aside, the news today […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Forlinx UP4 – A 40×40 mm LCC + LGA system-on-module family with Rockchip, NXP, and Allwinner CPU options

Forlinx UP4 – A 40×40 mm LCC + LGA system-on-module family with Rockchip, NXP, and Allwinner CPU options

Forlinx UP4 system-on-module

Forlinx Embedded UP4 is a new family of pin-to-pin compatible system-on-modules currently offered with Rockchip RK3568J/RK3562J, NXP i.MX 9352, or Allwinner T527N/T536 processors. The UP4 modules measure just 40×40 mm and expose 487 pins through a hybrid LCC (Leadless Chip Carrier) and LGA (Land Grid Array) design with 1.0mm contact pitch and 1.27mm ball pitch, respectively. This should allow companies to design a single carrier board for multiple CPU variants. Forlinx UP4 specifications: SoC FET-MX9352-UP4 – NXP i.MX 9352 with 2x Arm Cortex-A55 cores @ up to 1.7 GHz, Cortex-M33 real-time core @ 250 MHz, 2D GPU only, 0.5 TOPS Arm Ethos U65 microNPU FET3568-UP4 – Rockchip RK3568B2/J with 4x Arm Cortex-A55 cores @ up to 2.0/1.8 GHz, Arm Mali-G52 MP2 3D GPU, 1 TOPS AI NPU FET3562J-UP4 – Rockchip RK3562J with 4x Arm Cortex-A53 cores @ 1.8 GHz,  Arm Mali-G52-2EE 3D GPU, 1 TOPS NPU FET527N-UP4 – Allwinner T527N […]

Posted on by Debashis Das - 3 Comments on IP67-rated AI security camera feature Rockchip RV1126B or RK3576/J/M SoC for commercial, industrial, and automotive applications

IP67-rated AI security camera feature Rockchip RV1126B or RK3576/J/M SoC for commercial, industrial, and automotive applications

Firefly CQ38W 1126B and CQ38W 3576 AI smart security cameras

Back in January 2024, Firefly released the CT36L AI smart security cameras, built around the Rockchip RV1106G2 SoC with a 0.5 TOPS NPU and Power over Ethernet (PoE) support. Now, Firefly has introduced two new AI cameras, the CQ38W-1126B and CQ38W-3576, which use a similar IP67-rated enclosure but come with much more powerful processors. Both new models no longer support PoE and instead use a 12V DC input, and they also add an RS485 interface. In terms of performance, the CQ38W-1126B is built around the Rockchip RV1126B with a 3 TOPS NPU and can run small multimodal AI models. The higher-end CQ38W-3576 features an octa-core Rockchip RK3576 with a 6 TOPS NPU, making it suitable for more demanding AI workloads, including YOLO and large language models. Both cameras are available with 3MP or 5MP sensors and come in Commercial or Industrial (J-suffix) variants. The 3576 series also adds an Automotive-grade […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 6 Comments on Linux 7.0 Release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 7.0 Release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 7.0

Linus Torvalds has just released Linux 7.0 on LKML: The last week of the release continued the same “lots of small fixes” trend, but it all really does seem pretty benign, so I’ve tagged the final 7.0 and pushed it out. I suspect it’s a lot of AI tool use that will keep finding corner cases for us for a while, so this may be the “new normal” at least for a while. Only time will tell. Anyway, this last week was a little bit of everything: networking (core and drivers), arch fixes, tooling and selftests, and various random fixes all over the place. Let’s keep testing, and obviously tomorrow the merge window for 7.1 opens. I already have four dozen pull requests pending – thank you to all the early people. Linus This follows the Linux 6.19 release about two months ago, which brought us PCIe link encryption and […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 3 Comments on Rockchip RK3538 TV Box SoC and RK3572 mid-range HMI processor are coming soon

Rockchip RK3538 TV Box SoC and RK3572 mid-range HMI processor are coming soon

Rockchip RK3538

While we are eagerly waiting for the RK3668 and RK3688 high-end processors, Rockchip is planning to launch two mid-range SoCs with the RK3538 quad-core Cortex-A55 processor designed for TV boxes, and the RK3572 hexa-core Cortex-A73/A53 SoC for HMI (Human Machine Interface) applications. Rockchip RK3538 TV box SoC Rockchip RK3538 specifications: CPU – Quad-core Arm Cortex-A55 processor with NEON, FPU, ARMv8 Crypto… Cache 32KB L1 instruction cache 32KB L1 data cache and 64KB L2 data cache 512KB unified system L3 cache GPU Arm Mali-G310 3D GPU with support for OpenCL 3.0, OpenGL ES1.1/2.0/3.2, Vulkan 1.2 2D Graphics Engine VPU Decoder H.265, H.264, AV1 (up to two simultaneous 1080p60 channels) VP8, VC1, MPEG-4, MPEG-2, MPEG-1 yp to 1920×1088 @ 60 FPS (1088 is not a typo) H.263 up to 720p60 (M)JPEG up to 8176×8176 @ 76 million pixels per second Encoder – N/A MCU core – RISC-V MCU in PMU domain with […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 5 Comments on Rockchip RK3588 and RK3576 H.264 and H.265 video decoders gain mainline Linux support

Rockchip RK3588 and RK3576 H.264 and H.265 video decoders gain mainline Linux support

Rockchip RK3588 RK3576 main linux H.265 H.264 video decoders

VDPU381 and VDPU383 video decoders are found in Rockchip RK3588 and RK3576 SoCs and variants like the RK3588S and RK3576J. So far, we had to rely on the Rockchip BSP to support hardware video decoding, but Collabora has just announced upstream/mainline Linux support for H.264 (AVC) and H.265 (HEVC) video decoding for RK3588 and RK3576 SoCs. Highlights of H.265/H.264 video decoder implementation on mainline Linux: A 17-patch series adding decoder support, in addition to dt-bindings and device tree nodes New V4L2 HEVC UAPI controls for explicit short-term and long-term RPS (Reference Picture Set) handling Fixing a non-obvious IOMMU restore issue caused by decoder-embedded IOMMU resets Struct-based register programming model to enforce completeness, ordering, and future multi-core readiness The new V4L2 UAPI controls for HEVC long and short-term Reference Picture Set (RPS) are required for the VDPU381 (RK3588) and VDP383 (RK3576) video decoders, contrary to some other decoders (e.g., VeriSilicon) that […]

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