ubuntu News - Page 159 of 187 - CNX Software

May 21, 2014May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

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 […]

May 18, 2014May 21, 2017 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

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 […]

May 12, 2014May 12, 2014 by Jean-Luc Aufranc (CNXSoft) - 57 Comments

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 […]

May 3, 2014May 3, 2014 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

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 […]

April 28, 2014April 28, 2014 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

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 […]

April 25, 2014 by Jean-Luc Aufranc (CNXSoft) - No Comments

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 […]

April 21, 2014April 21, 2014 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

SolidRun HummingBoard is a Raspberry Pi Compatible Board Powered by Freescale i.MX6

Yesterday, I wrote about Banana Pi, an AllWinner A20 powered development board that’s mechanically and electrically compatible with the Raspberry Pi so that you can keep using your existing R-Pi accessories. It turns out another company is working on a similar concept. Solidrun who has brought us Cubox and Cubox-i in the past, will soon launch HummingBoard, a Raspberry Pi compatible board powered by Freescale i.MX6 solo/dual/quad SoC, bring even more power than the AllWinner A20 dual core Cortex A7 SoC found in the Banana Pi. The HummingBoard, previously known as Carrier One, is composed of a baseboard and SolidRun microSOM (micro System-on-Module) have comes with the followings specifications: SoC = Freescale i.MX6 Quad @ 1 GHz with Vivante GC2000 3D GPU. The microSoM also comes in solo and dual flavors, and although it’s likely the HummingBoard will be sold with these variants too, it’s not 100% confirmed System Memory […]

April 20, 2014May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 36 Comments

Banana Pi is a Raspberry Pi Compatible Board fitted with an AllWinner A20 SoC

So you’ve got a Raspberry Pi board, an enclosure, and a few add-on boards. Your application would however do with some more processing power, or you’d like to run Android, but you don’t want to have to purchase accessories all over again for another board. Banana Pi could be the solution, as it’s apparently [Update: it’s not. See comments] mechanically and electrically compatible with the Raspberry Pi, and comes with a dual core Cortex A7 AllWinner A20 SoC with 1GB RAM, a Gigabit Ethernet port, and a SATA port, among other things. The board does indeed look familiar, with all external connectors at the exact same positions, but the hardware specs are fairly different: SoC- Allwinner A20 dual core Cortex A7 processor @ 1 GHz with Mali-400MP2 GPU System Memory – 1 GB RAM Storage – SD card slot, SATA connector Video output – HDMI, Composite, and LVDS/RGB Audio I/O […]