Linux 3.19 Release – Main Changes, ARM and MIPS Architectures

Linus Torvalds released Linux Kernel 3.19 yesterday: So nothing all that exciting happened, and while I was tempted a couple of times to do an rc8, there really wasn’t any reason for it. Just as an example, Sasha Levin used KASan and found an interesting bug in paravirtualized spinlocks, but realistically it’s been around forever, and it’s not even clear that it can really ever trigger in practice. We’ll get it fixed, and mark it for stable, and tempting as it was, it wasn’t really a reason to delay 3.19. And the actual fixes that went in (see appended shortlog) were all fairly small, with the exception of some medium-sized infiniband changes that were all reverting code that just wasn’t ready. So it’s out there – go and get it. And as a result, the merge window for 3.20 is obviously also now open. Linus Linux 3.18 improved performance of the network stack, received BTRFS and EXT-4 file systems improvements, …

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Freescale Unveils QorIQ LS1043A Quad core ARM Cortex A53 Communication Processor for Fanless Networking Equipment

Freescale has introduced the QorIQ LS1043A communications processor, powered by four 64-bit ARM Cortex A53 cores, and destined to be integrated into “intelligent-edge networking equipment including security appliances, SDN (Software Designed Networks) / NFV (Network Functions Virtualization) edge platforms and other fanless, power-efficient applications.” A dual core version named LS1023A is also available. Key features of LS1043A and LS1023A SoCs: CPU – Quad (LS1043A) or Dual (LS1023A) ARM Cortex-A53 64-bit cores @ 1 GHz to 1.5 GHz with 32/32 I/D Cache KB L1 and 1 MB L2 cache. 16,000+ CoreMarks. Networking & High Speed Interfaces: Up to six 1x GbE or 1x 10GbE and five x GbE Four lane SerDes up to 10 GHz multiplexed across controllers supporting: Three PCI Express Gen 2 interfaces SATA 3.0 Interface uQUICC Engine Accelerators and Memory Control DPAA (Data Path Acceleration Architecture) Parse, Classify and Distribution Engines Integrated security engine 32-bit DDR3L/4 controller Other peripherals 3x USB 3.0 interfaces with PHY QuadSPI Integrated Flash Controller (IFC) …

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Freescale LS1021A-IOT IoT Gateway Reference Design Powered by QorIQ LS1021A Dual ARM Cortex A7 SoC

Freescale has just launched a an IoT gateway reference design powered by their QorIQ LS1021A communication processors running Linux/OpenWRT, designed in partnership with TechNexion, and targeting various IoT applications such as building/home management, smart cities, networked industrial services, etc… Beside the dual core Cortex A7 QoirIQ processor, the board features six Gigabit Ethernet ports, two USB 3.0 ports, a SATA 3 port, two mini PCIe connector, an LVDS interface, HDMI output, Arduino UNO compatible headers, and various others expansions headers. LS1021A-IOT IoT gateway Specifications: SoC – Freescale QorIQ LS1021A dual core Cortex A7 communication processor @ 1 GHz (5,000 coremarks) MCU – Freescale Kinetis K20 Cortex M micro-controller System Memory – 1 GB DDR3L Storage – 1 Gb QSPI NOR Flash, SDHC slot (up to 32 GB) populated with a 4GB SD card, 1x mSATA 3 slot Connectivity – 6x Gigabit ports via SGMII (Serial Gigabit Media Independent Interface) and RGMII (Reduced Gigabit Media Independent Interface) interfaces Display I/F 24-bit …

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