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Linux 4.2 Release – Main Changes, ARM and MIPS Architectures

Linus Torvalds released Linux Kernel 4.2 last Sunday: So judging by how little happened this week, it wouldn’t have been a mistake to release 4.2 last week after all, but hey, there’s certainly a few fixes here, and it’s not like delaying 4.2 for a week should have caused any problems either. So here it is, and the merge window for 4.3 is now open. I already have a few pending early pull requests, but as usual I’ll start processing them tomorrow and give the release some time to actually sit. The shortlog from rc8 is tiny, and appended. The patch is pretty tiny too. Go get it, Linus Some notable changes made to Linux 4.2 include: File systems New features for F2FS including per file encryption CIFS support SMB 3.1.1 (experimental) Cryptography – Jitter Entropy Random Number Generator, Chacha20 stream cipher and Poly1305 authentication (RFC7539),New RSA implementation. See lwn.net […]

DENX Computer Systems Introduces Atmel SAMA5D44 and Freescale i.MX6 System-on-Modules

Embedded World 2015 exhibition and conference will take place in Nuremberg, Germany on February 24-26, 2015, and we should expect interesting news related to MCU, industrial processors, and related development kits and boards next week. DENX Computer Systems has already unveiled two new SoM families with MA5D4 based on Atmel SAMA5D44 Cortex A5 processor, and M6R based on Freescale i.MX 6 Cortex A9 processors. DENX MA5D4 System-on-Module MA5D4 SoM specifications: Processor – Atmel SAMA5D44 Cortex A5 @ 528MHz with 720p hardware video decoder supporting H264/263, VP8, JPEG. System Memory – 128 – 512MB DDR2 RAM Storage – 4 – 32GB eMMC Flash (or optionally 256MB NAND Flash); 4 MB MByte SPI NOR-Flash; I/Os via 230-pin MXM2 edge connector Video Out / Display Support –  HDMI.  TFT controller, overlay support for image composition, resitive Touchscreen controller Camera – CMOS image sensor interface external bus A/D 25/16 bit 2x 10/100MBit Ethernet, IEEE1588 […]

Atmel SAMA5D4 Xplained Ultra Development Board Adds HDMI, 720p Video Decoding

Atmel has introduced an upgrade to their Atmel SAMA5D3 Xplained development board with SAMA5D4 Xplained Ultra replacing SAMA5D36 by SAMA5D44 embedded micro-processor for 720p hardware video decoding support, and adding HDMI output, extra storage and memory, etc… but losing one Ethernet port. Atmel SAMA5D4 Xplained Ultra (XLUT) specifications: MPU – Atmel SAMA5D44 Cortex-A5 Microprocessor @ 536 MHz System Memory – 2x 2Gbit DDR2 memory Storage – 4 Gbit NAND Flash, 1x 4-bit SD card connector (not populated), 1x 4-bit micro SD connector, optional serial EEPROM (SPI), one EEPROM with MAC address and serial number. Connectivity – 1x Ethernet 10/100M Display – 1x LCD interface connector, 1x HDMI port USB –  1x micro USB device connector, 2x USB host connectors Debugging – 1x 20-pin J-TAG connector, 1x EDBG connector (not populated), 1x serial DBGU interface (3.3V) Expansion – Arduino R3-compatible headers, XPRO set of connectors; ADC inputs and CAN interfaces Misc […]

Linux 3.18 Released

Linus Torvalds released Linux Kernel 3.18 last Sunday: It’s been a quiet week, and the patch from rc7 is tiny, so 3.18 is out. I’d love to say that we’ve figured out the problem that plagues 3.17 for a couple of people, but we haven’t. At the same time, there’s absolutely no point in having everybody else twiddling their thumbs when a couple of people are actively trying to bisect an older issue, so holding up the release just didn’t make sense. Especially since that would just have then held things up entirely over the holiday break. So the merge window for 3.19 is open, and DaveJ will hopefully get his bisection done (or at least narrow things down sufficiently that we have that “Ahaa” moment) over the next week. But in solidarity with Dave (and to make my life easier too 😉 let’s try to avoid introducing any _new_ […]

Beyond Debug Key Enables JTAG & UART Debugging, Supports OpenOCD

Beyond Semiconductor, a fabless semiconductor company based in Slovenia which develops their own 32-bit BA2x IP cores, has sent me one of their development tool, namely Beyond Debug Key supporting JTAG and UART interfaces either with BeyondStudio for the company’s BA2x processor, or the open source suite OpenOCD for other processors. Since I don’t have any Beyond Semi boards, I instead configured it, and quickly tried it with Atmel SAMA5D3 Xplained ARM Cortex A5 development board, and OpenOCD (Open On-Chip Debugger). The debug tool comes in the package above describing the key features of the kit: Performance Transfer rate in excess of 600 kB/s 30 MHz maximum JTAG clock Less than 20 μW power draw from target board Compatibility Fully compatible with Beyond BA2x processor family Access any 8-bit, 16-bit, 32-bit or 64-bit processors via JTAG Works with all JTAG compliant devices Software Support OpenOCD for access to a range […]

Atmel Introduces SAMA5D4 Embedded MPUs With 720p Video Decoder And TrustZone Support

Atmel has expanded its SAMA5 Cortex A5 embedded processor family with SAMA5D4 series adding an optional video processing unit capable of decoding H264, VP8 and MPEG4 at 720p / 30fps, as well as support for ARM NEON and TrustZone technology. There are also some other changes with regards to connectivity: no Gigabit Ethernet, more UART interfaces, less SPI interfaces, etc… Key features listed of Atmel SAMA5D4 series:: ARM Cortex-A5 core up to 528MHz (840DMIPS) with NEON & TrustZone support, 2x 32KB L1 cache, and 128KB L2 cache. Optional 720p hardware video decoder supporting H264/263, VP8, JPEG, and MPEG4. Graphic LCD TFT controller with overlays for image composition, resistive touchscreen controller. CMOS image sensor interface. Three high-speed USB ports (configurable as three hosts or two hosts and one device port). Dual EMAC 10/100 with IEEE1588 support (Precision Time Protocol). Other I/Os – 8x UART,  8x SPI, 4x TWI, 2 HS SDIO/SD/MMC, […]

Emtrion SBC-SAMA5D36 ARM Cortex A5 Linux Development Board Comes with Dual Ethernet, HDMI Output

A few months ago, I reviewed Atmel Xplained SAMA5D3 development board powered by SAMA5D36 Cortex A5 processor. The kit is supported by the Yocto Project, so I could build and run Poky distribution with a recent Linux kernel (it support mainline), it features Arduino compatible headers, and I found the board to be a nice platform for headless applications, or applications that require an LCD display. However, if you wanted to connect an HDMI display you’d be out of luck, unless you design your own LCD to HDMI add-on board. Emtrion SBC-SAMA5D36 could be an interesting alternative, as it features very similar specifications, but adds an HDMI output port. Emtrion SBC-SAMA5D36 specifications: MPU – Atmel SAMA5D36 single core Cortex-A5 @  536 MHz System Memory – 256 MB RAM Storage – 512 MB NAND Flash, up to 16 MB NOR Flash, and micro SD Card socket Connectivity – 100Base-TX Ethernet,  10/100/1000Base-TX […]

Linux 3.16 Released

Linus Torvalds announced the release of Linux Kernel 3.16 over the week-end: So nothing particularly exciting happened this week, and 3.16 is out there. And as usual (previous release being the exception) that means that the merge window for 3.17 is obviously open. And for the third time in a row, the timing sucks for me, as I have travel coming up the second week of the merge window. Many other core developers will be traveling too, since it’s just before the kernel summit in Chicago. So we’ll see how the next merge window goes, but I’m not going to worry about it overmuch. If I end up not having time to do all the merges, I might delay things into the week of the kernel summit, but I’ll hope to get most of the big merging done this upcoming week before any travel takes place, so maybe it won’t come […]

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