Rockchip RK1808 Cortex-A35 NPU Delivers up to 3.0 TOPS

RK1808 NPU AIoT Solution

Rockchip RK3399Pro was expected to be the first processor from the company featuring an NPU (Neural Processing Unit) to accelerate artificial intelligence workloads, but eventually went through a redesign, and the community found it gave birth to RK1808 NPU by looking at a device tree file in the Linux kernel. Rockchip has now made the NPU official at CES 2019, and we now know a little bit more. Here are the specifications shared by the company: Dual-core Arm Cortex-A35 CPU NPU computing performance up to 3.0TOPs supporting INT8/INT16/FP16 hybrid operation VPU supporting 1080P video codec Built-in 2MB system-level SRAM Display – MIPI/RGB video output Camera – MIPI/CIF/BT1120 Camera video signal input with built-in ISP Audio Microphone array support with hardware VAD function for low-power monitoring and far-field wake-up Audio output I/O PWM/I2C/SPI /UART USB3.0/USB2.0 PCIe interface Support for Gigabit Ethernet and external WiFi/Bluetooth modules Manufacturing – 22nm FD-SOI process It shares many similar functions as standard media SoCs, but it …

Linux 4.11 Release – Main Changes, ARM & MIPS Architecture

Linus Torvalds has just released Linux 4.11: So after that extra week with an rc8, things were pretty calm, and I’m much happier releasing a final 4.11 now. We still had various smaller fixes the last week, but nothing that made me go “hmm..”. Shortlog appended for people who want to peruse the details, but it’s a mix all over, with about half being drivers (networking dominates, but some sound fixlets too), with the rest being some arch updates, generic networking, and filesystem (nfs[d]) fixes. But it’s all really small, which is what I like to see the last week of the release cycle. And with this, the merge window is obviously open. I already have two pull request for 4.12 in my inbox, I expect that overnight I’ll get a lot more. Linux 4.10 added Virtual GPU support, perf c2c’ tool, improved writeback management, a faster initial WiFi connection (802.11ai), and more. Some notable changes for Linux 4.11 include: …

Linux 4.10 Release – Main Changes, ARM & MIPS Architectures

Linus Torvalds has just released Linux 4.10: So there it is, the final 4.10 release. It’s been quiet since rc8, but we did end up fixing several small issues, so the extra week was all good. On the whole, 4.10 didn’t end up as small as it initially looked. After the huge release that was 4.9, I expected things to be pretty quiet, but it ended up very much a fairly average release by modern kernel standards. So we have about 13,000 commits (not counting merges – that would be another 1200+ commits if you count those). The work is all over, obviously – the shortlog below is just the changes in the last week, since rc8. Go out and verify that it’s all good, and I’ll obviously start pulling stuff for 4.11 on Monday. Linus Linux 4.9 added Greybus staging support, improved security thanks to virtually mapped kernel stacks, and memory protection keys, included various file systems improvements, and …

Rockchip RV1108 Cortex A7 + DSP SoC is Made for Audio & Video Conference and Recording Applications

[Update May 2017: Rockchip are rename RK1108 to RV1108.] Rockchip has introduced RV1108 ARM Cortex A7 SoC with a 600 MHz DSP targeting visual communication, consumer electronics, automotive DVR, and security applications thanks to its 8-channel I2S audio codec and 1440p H.264 video encoder and decoder. Detailed specifications can be found on the official Rockchip Wiki: CPU – Single-core ARM Cortex-A7 Core processor with NEON and FPU,  32KB/32KB L1 I-Cache/D-Cache, Unified 128KB L2 Cache, and Trustzone Video/Image DSP – Up to 600 MHz, 32KB I-TCM and 32KB I-cache, 128KB D-TCM Memory 12KB internal SRAM DDR3/DDR3L interface – 16 Bits data width, 1 ranks (chip selects), up to 512 MB RAM NAND Flash Interface – 8-bit async NAND flash, 16-bit hardware ECC eMMC Interface – Compatible with standard iNAND interface, eMMC 4.51 standard. SD/MMC Interface – Compatible with SD 3.0, MMC 4.41 System Component 2x 64-bit timers with interrupt-based operation 8x PWMs with interrupt-based operation WatchDog timer Video Video decoder of …