rockchip

Posted on by Jean-Luc Aufranc (CNXSoft) - 7 Comments on Rockchip showcases RK3528 TV box SoC and RK3562 tablet SoC

Rockchip showcases RK3528 TV box SoC and RK3562 tablet SoC

Rockchip RK3528 RK3562

Rockchip showcased some new processors at Mobile World Congress 2023: the RK3528 for TV boxes, and the RK3562 for tablets both with a Cortex-A53 CPU subsystem, but the former comes with a Mali-450 GPU, and the latter with a faster Mali-G52 2EE GPU. Both are clearly for entry-level devices, but I’m a little surprised they didn’t go with Cortex-A55 cores instead. Rockchip demonstrated the new processors in a TV box running Android 13 and a tablet with a 144,506 score in the latest Antutu benchmark as shown below. Rockchip RK3528 preliminary specifications: CPU – Arm Cortex-A53 processor (core count unspecified) GPU – Arm Mali-450 GPU with AFBC compression support Memory – LP4, LP4X, LP3, DDR4, DDR3 Video decoding – Up to 8Kp25 Supported OS – Android 13 Rockchip RK3562 preliminary specifications: CPU – Quad-core Cortex-A53 processor @ 2 GHz GPU – Mali-G52 EE AI accelerator – 1 TOPS NPU VPU […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 13 Comments on LibreELEC 11 released with Kodi 20, brings back Amlogic platforms

LibreELEC 11 released with Kodi 20, brings back Amlogic platforms

LibreELEC 11

LibreELEC 11 lightweight media center Linux distribution based on Kodi 20 “Nexus” has just been released with various improvements on x86 and Arm platforms. Kodi 20 was released and available for download in January with AV1 hardware video decoding in Android and x86 (VAAPI) platforms with AV1-capable GPU or VPU, FFMPEG 4.4, Pipewire support in Linux, and a few others. LibreELEC 11 enables you to have a dedicated, and fast booting, HTPC based on a mini PC, a Raspberry Pi SBC, or an Arm-based TV box with all features from the latest Kodi release. LibreELEC 11 supports Raspberry Pi 2 to 4 SBCs, 64-bit x86 hardware, various Allwinner, Rockchip, and Amlogic SBCs and TV boxes with x86, Raspberry Pi, and Rockchip hardware considered more stable and feature complete. LibreELEC 10.0 did away with Amlogic TV boxes and single board computers because of driver issues, but LibreELEC 11.0 brings Amlogic back […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 7 Comments on Linux 6.2 release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 6.2 release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 6.2 release

Linux 6.2 has just been released with Linus Torvalds making the announcement on LKML as usual: So here we are, right on (the extended) schedule, with 6.2 out. Nothing unexpected happened last week, with just a random selection of small fixes spread all over, with nothing really standing out. The shortlog is tiny and appended below, you can scroll through it if you’re bored. Wed have a couple of small things that Thorsten was tracking on the regression side, but I wasn’t going to apply any last-minute patches that weren’t actively pushed by maintainers, so they will have to show up for stable. Nothing seemed even remotely worth trying to delay things for. And this obviously means that the 6.3 merge window will open tomorrow, and I already have 30+ pull requests queued up, which I really appreciate. I like how people have started to take the whole “ready for […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 21 Comments on Year 2022 in review – Top 10 posts and statistics

Year 2022 in review – Top 10 posts and statistics

CNX Software Happy New Year 2023

It’s the last day of the year and the time to look at some of the highlights of 2022, some traffic statistics from CNX Software website, and speculate on what 2023 may bring us. The semiconductors shortage continued in 2022, but things are looking brighter in 2023 with the full reopening of the world mixed with forecasts of difficult economic times that should keep the demand/supply equation in check. On the Arm processor front the biggest news of the year, at least in this corner of the Internet, was the launch of the Rockchip RK3588 octa-core Cortex-A76/A55 processor together with interesting single board computers that we’ll discuss below. Announced last year, the Amlogic A311D2 octa-core Cortex-A73/A53 was finally made available in a few SBC’s, and we finally got some news about the Amlogic S928X Cortex-A76/A55 SoC showcased in 8K TV boxes, but we have yet to see it in action. […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 6 Comments on Linux 6.1 LTS release – Main changes, Arm, RISC-V and MIPS architectures

Linux 6.1 LTS release – Main changes, Arm, RISC-V and MIPS architectures

Linux 6.1 LTS

Linus Torvalds announced the release of Linux 6.1, likely to be an LTS kernel, last Sunday: So here we are, a week late, but last week was nice and slow, and I’m much happier about the state of 6.1 than I was a couple of weeks ago when things didn’t seem to be slowing down. Of course, that means that now we have the merge window from hell, just before the holidays, with me having some pre-holiday travel coming up too. So while delaying things for a week was the right thing to do, it does make the timing for the 6.2 merge window awkward. That said, I’m happy to report that people seem to have taken that to heart, and I already have two dozen pull requests pending for tomorrow in my inbox. And hopefully I’ll get another batch overnight, so that I can try to really get as […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 27 Comments on What is PVTM? Or why your Rockchip RK3588 CPU may not reach 2.4 GHz

What is PVTM? Or why your Rockchip RK3588 CPU may not reach 2.4 GHz

Rockchip PVTM

While the Rockchip RK3588 processor is advertised as reaching 2.4 GHz, not all RK3588 chips may achieve this frequency. The keyword is PVTM (Process-Voltage-Temperature Monitor), and we’ll try to explain why it does, and why some of the RK3588 processors may only be clocked at about 2.3 GHz, while others will run fine at 2.4 GHz. This all started with Rock 5B SBC debug party, where we noticed our boards did not reach the same frequency. Willy Tarreau noted the “pvtm” value was different between our boards: Willy’s board: (Cortex-A76 cluster 1 @ 2,304 MHz, cluster 2 @ 2,352 MHz)

CNXSoft board (Cortex-A76 cluster 1 @ 2,304 MHz, cluster 2 @ 2,304 MHz) :

Thomas Kaiser (tkaiser) board: (Cortex-A76 cluster 1 @ 2,400 MHz, cluster 2 @ 2,400 MHz)

For reference, CPU 0 to 3 are Cortex-A55 cores, CPU 4-5 are two Cortex-A76 cores (cluster 1), and […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Linux 5.18 release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 5.18 release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 5.18 release arm risc-v mips

Linux 5.18 is out! Linus Torvalds has just announced the release on lkml: No unexpected nasty surprises this last week, so here we go with the 5.18 release right on schedule. That obviously means that the merge window for 5.19 will open tomorrow, and I already have a few pull requests pending. Thank you everybody. I’d still like people to run boring old plain 5.18 just to check, before we start with the excitement of all the new features for the merge window. The full shortlog for the last week is below, and nothing really odd stands out. The diffstat looks a bit funny – unusually we have parsic architecture patches being a big part of it due to some last-minute cache flushing fixes, but that is probably more indicative of everything else being pretty small. So outside of the parisc fixes, there’s random driver updates (mellanox mlx5 stands out, […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Linux 5.17 release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 5.17 release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 5.17 changelog

Linus Torvalds has just released Linux 5.17: So we had an extra week of at the end of this release cycle, and I’m happy to report that it was very calm indeed. We could probably have skipped it with not a lot of downside, but we did get a few last-minute reverts and fixes in and avoid some brown-paper bugs that would otherwise have been stable fodder, so it’s all good. And that calm last week can very much be seen from the appended shortlog – there really aren’t a lot of commits in here, and it’s all pretty small. Most of it is in drivers (net, usb, drm), with some core networking, and some tooling updates too. It really is small enough that you can just scroll through the details below, and the one-liner summaries will give a good flavor of what happened last week. Of course, this means […]

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