Cavium ThunderX Server SoC Features up to 48 ARM 64-bit Cores

ARM SBSA specification for server supports up to 268,435,456 CPU cores for the second level of standardization on one or a combination of SoCs. We’re not quite up there just yet, but Cavium ThunderX is an ARM server SoC with up to 48 cores on a single chip, which is the highest number of cores I’ve ever heard of in an ARM SoC. The company created their own custom processor cores using an ARMv8 architecture license, designing an SoC complies with ARM’s Server Base System Architecture (SBSA) standard with the following key features: ARM based SoC that scales up from 8 to 48 cores with up to 2.5 GHz core frequency with 78K I-Cache, 32K D-Cache, and 16MB L2 cache. Fully cache coherent across dual sockets using Cavium Coherent Processor Interconnect (CCPI) Integrated I/O capacity with 100s of Gigabits of I/O bandwidth 4x DDR3/4 72-bit memory controllers supporting up to 1TB RAM […]

Linaro 14.05 Released with Linux Kernel 3.15, Android 4.4.2, and Ubuntu Trusty

Linaro 14.05 has been released with Linux Kernel 3.15-rc5 (baseline), Linux Kernel 3.10.40 (LSK), Android 4.4.2, and Ubuntu has been switched from Saucy to Trusty. More work has been done on big.LITTLE processing and ARMv8 support with notably completing bootstrapping with Debian 64-bit. New hardware platform have started to pop-up such as TI J6-Vayu which must be an evaluation board for Texas Instruments Jacinto 6 dual core Cortex A15 SoC for automotive application, as well as IFC6410, a Snapdragon 600 development board which got a Ubuntu LEB image. This month also marks the first release of Linaro GCC 4.9 toolchain. Here are the highlights of this release: Linux Linaro 3.15-rc5-2014.05 new Android topic (linaro-android-3.15-experimental) uses the resent AOSP code base GATOR version 5.18 (same version as in 2014.04) uprobes topic removed as all patches have been accepted into mainline updated big-LITTLE-pmu topic from ARM LT updated basic Capri board support […]

ARM Cortex A15/A17 SoCs Comparison – Nvidia Tegra K1 vs Samsung Exynos 5422 vs Rockchip RK3288 vs AllWinner A80

We’re now starting to get quite a few players with ARM Cortex A15 cores on the market, as well as some with ARM Cortex A17. So a comparison table of different quad and octa SoCs might be a useful thing to do. I’ve put aside SoCs such as HiSilicon K3V3, and OMAP5, and focused on the four latest processors: Nvidia Tegra K1 (32-bit), Samsung Exynos 5422, Rockchip RK3288 and AllWinner A80. I haven’t included Mediatek MT6595 and Qualcomm SnapDragon 805, because the two companies mainly focus on smartphones and tablets (although it appears to be slowly changing for Qualcomm), documentation is usually difficult or impossible to find, and in the case of Qualcomm they use their own ARMv7 Krait cores. I’ve highlighted some features in green, in case a particular SoC appears to have an edge. Rockchip RK3288 AllWinner A80 Nvidia Tegra K1 Samsung Exynos 5422 CPU 4x ARM Cortex-A17 […]

Ubuntu 14.04 and Slitaz on Radxa Rock

Various Android and Linux images are available on Radxa Rock download page, but if you’d like to get newer images or other options, two developers have provided binaries and posted instructions to get Ubuntu 14.04 and Slitaz operating systems, the later currently booting with Linux kernel 3.10. Naoki FUKAUMI has published a miniroot how-to install a Ubuntu 14.04 Core (minimal headless installation) on Radxa Rock and Radxa Rock Lite. Installation should be relatively easy as he provide the update.img for both board so your can use the usual method in Windows (RkBatchTool) or upgrade_tool in Linux. If you don’t have serial console, you’ll have need to flash the parameter file requiring RkAndroidTool in Windows, and the same upgrade_tool in Linux. If once the installation and configuration is complete, you want a desktop environment,you can always run “apt-get install lubuntu-desktop” to install LXDE. SliTaz is a lightweight Linux distribution. I previously […]

How to Extract a Device Tree File from Android Firmware Files

Up to now, all our cheap Android devices were based on older Linux kernel (3.0.x, 3.4.x) that still used board files (arch/arm/board, but we’ve recently seen companies like Amlogic and Rockchip release source code with Linux kernel 3.10.x. One of the key differences between these version are the move from board files to flattened device tree and multi-platform support. If it is fully implemented, a single kernel image should be able to boot multiple hardware platforms, and all low level configuration handled by the device tree file. Since I’ve connected the serial port of Tronsmart Vega S89 for debugging, and it’s a slow news day, I thought I might try to boot the Linux kernel I compiled myself, but one of the challenge was to get the device tree file. I’ll show how to extract it from the firmware. It should also be possible to get it directly from the […]

Nvidia Tegra K1 CPU/FPU Performance is Comparable to Intel Celeron “Bay Trail-D” J1900 SoC

Nvidia Jetson TK1 development board powered by Nvidia Tegra K1 quad core ARM Cortex A15 processor and a 192-core Kepler GPU has started shipping, and some people have already received theirs, including Michael Larabel (Phoronix) who ran some benchmarks on the board that comes pre-loaded with Ubuntu 14.04 LTS. We already had some benchmarks comparing Tegra K1 to ARM peers on Android, but it’s the first time Linux benchmarks are available. The benchmarks seems to only involve CPU and FPU, and probably not the GPU at this point, but the results are still interesting, and Michael also pointed links comparing Nvidia Tegra K1 development board performance to some Intel Core i5 based PCs, as well as a platform based on an Intel Celeron J1900, a quad core processor part of Bay Trail Desktop family.  The later is most interesting as we compare systems with similar power requirements. Nvidia Tegra K1 […]

How to Mount Google Drive in Linux with google-drive-ocamlfuse

Ubuntu One is not included in the latest Ubuntu 14.04 LTS, and will be phased out on the 1st of July 2014, with files from users being completely wiped out by the 31st of July. I liked the service to exchange files between my Ubuntu computer and Android phones, and features like automatic upload of pictures. Luckily there are alternative such as Dropbox, Copy.com, and ownCloud, each with their own pros and cons. But today, I’ll show how to easily use your Google Drive in Ubuntu / Debian. Last year, I wrote about insync, a beta service that offers Google drive integration into Linux, but since service went out of beta, the company started to charge $15 per account for consumers (one time year), with business plans starting at $15 per year. If you are interested in this solution you can still give it a try for free for 14 […]

Linaro 14.04 Release with Linux Kernel 3.14 and Android 4.4.2

Linaro 14.04 has been released with Linux Kernel 3.14 (baseline), Linux Kernel 3.10.37 (LSK), and Android 4.4.2. More work has been done on ARMv8 support, and big.LITTLE for both the Linux kernel and Android, as well as work on member hardware platforms such as Origen, Arndale, Arndale Octa, Broadcom Capri, and Hisilicon D01 boards. GCC 4.8-2014.04 Linaro is said to include performance improvements. Linaro Android engineering builds for Nexus 7 and Nexus 10 have been setup, but I can’t quite find the images. They’ve also added the BeagleBone Black to member builds. Here are the highlights of this release: Linaro Stable Kernel (LSK) 3.10.37-2014.04 Updates to Android support (from Google and Linaro) Added Big endian for ARMv7 and ARMv8 Thermal framework DT support Huge pages and transparent huge pages for ARMv8 Tagged pointers for ARMv8 Non-coherent DMA for ARMv8 Other Features big.LITTLE support – ARM MP patch set, IKS (ARMv7 […]