Linux v4.12 released, BayLibre contributions

We are happy to announce the Linux v4.12 release on July the 2nd.

Baylibre is pleased to have contributed with the Linux Kernel community to this new version.

An excellent summary of this release can be found at KernelNewbies.

Here is a summary of our contributions, organized by SoC family and a summary graph of contributions by developer.

Amlogic SoC family:

  • Clocks fixups and exports
  • GXL pinctrl fixups and more pins declarations
  • GXBB more pins declarations
  • Add MALI Node for GXBB and GXL
  • Add MALI Clocks support
  • Odroid-c2: Fix USB Hub and and GPIO pin labels
  • Add ADC Laddred buttons on P230 and Q200
  • Add support for HDMI Output on GXBB, GXL and GXM

 

TI DaVinci SoC family:

  • musb for da8xx
    • Add clock for CPPI 4.1 DMA engine
    • CPPI 4.1 DMA fixes
    • Detect aborted transfers
    • Add support of CPPI 4.1 DMA controller to DA8xx
  • Enable ohci for omapl138 lcdk
  • Add support for SATA on dm8168-evm
    • model the SATA refclk
    • add con_id for the SATA clock
    • add and enable the SATA node
    • davinci_all_defconfig: enable SATA modules
  • Fix da850 vpif display pinx
  • Fix davinci SPI DMA handling

Various

  • ASoC: add es7134 DAC driver and bindings
  • Enhancements to the DW-HDMI bridge driver

 

stats-v4.11-v4.12

 

Linux v4.11 released, BayLibre contributions

The v4.11 release of the Linux kernel was made on April 30th.

An excellent summary of this release can be found at KernelNewbies, and below is a summary of our contributions, organized by SoC family and a summary graph of contributions by developer.

Amlogic SoC family:

  • ADC laddered keys for P200 board
  • Export HDMI clocks
  • Add HDMI HPD/DDC pins functions

New boards:

  • Wetek Play (S905)
  • Wetek Hub (S905)

TI DaVinci SoC family:

  • musb for da8xx
    • Manage CPPI 4.1 DMA interrupt in DSPS
    • Clean up
    • Detect aborted transfers
    • Fix host mode suspend
    • Add support of suspend / resume
    • Remove CPPI 3.0 quirk and methods
  • Enable ohci for omapl138 lcdk
  • Add support for SATA on da850-lcdk
    • model the SATA refclk
    • add con_id for the SATA clock
    • add and enable the SATA node
    • davinci_all_defconfig: enable SATA modules
    • ahci-da850: un-hardcode the MPY bits
    • ahci-da850: add a workaround for controller instability
    • ahci-da850: implement a workaround for the softreset quirk
    • ahci-da850: add device tree match table
  • Fix VGA output on da850-lcdk
    • add the vga-bridge node
    • add support for TI ths8135
  • Fix davinci: vpif_capture

 

Linux v4.10 released, BayLibre contributions

The v4.10 release of the Linux kernel was made on February 19th, and BayLibre has (again) made the list of top 20 active employers.

An excellent summary of this release can be found at KernelNewbies, and below is a summary of our contributions, organized by SoC family and a summary graph of contributions by developer.  A special shout-out this development cycle goes to Neil Armstrong for the significant contributions of new DRM/KMS support for Amlogic SoCs.

Amlogic SoC family:

  • DT support for GXL family (S905X, S905D)
  • DT support for GXM family (S912)
  • added SD / eMMC driver
  • SDIO WLAN
  • GPIO IRQ support
  • SCPI
  • CPU DVFS (using SCPI)
  • DRM/KMS: display support (composite)

New boards:corn-kernels

  • Amlogic S905D P230
  • Amlogic S905X P212
  • Nexbox A95 (S905)
  • Nexbox A1 (S912)

TI DaVinci SoC family:

  • VPIF video capture: updated for DT support
  • USB: OHCI: DT support
  • USB: MUSB: DT support, host and device
  • push-buttons: supported with GPIO keys
  • fixed PLL0 rate setting
  • PWM support
  • SATA support
  • PM: suspend/resume suport for DT-based platforms

OXNAS SoCs:

  • Add SMP support
  • Add support for OX820 and Pogoplug V3
  • net: add oxnas support to DWMAC
  • pinctrl: Add SX150X GPIO Extender

Sierra Wireless SoCs:

  • Add support for WP8548 based MangOH Green board
  • Add DT base for MDM9615 SoC

BayLibre-v4.10

Nexbox A1 serial console

The Nexbox A1 which includes an 8-core Amlogic S912 processor, is now supported in v4.10 of the Linux kernel, thanks in part to the work of BayLibre.

If you’d like to help with kernel development on this platform, the first think you’ll need is access to the serial console.  The serial port is not brought out to a connector, but pads are easily accessible on the main board.Nexbox A1 UART pins

Once you open the case, you’ll pads for the UART signals between the heat sink and the edge of the board.

In the photo to the right, wires have been soldered to the pads:

  • Red: VCC (not used)
  • Orange: RX
  • Yellow: TX
  • Black: Ground

Hooking the newly soldered wires up to a USB serial cable such as this one, you’ll see the boot-loader and linux kernel messages on your as soon as you power on the board.  NOTE: signal levels are 3.3V, and no need to hook up the VCC line.

Now you’ll be ready to dive in and help with kernel development on Amlogic processors.   Enjoy!

Nexbox A1

Linux v4.9 released, BayLibre contributions

The v4.9 release of the Linux Kernel has just been announced, and BayLibre has made the top 20 list of companies contributing to the Linux Kernel this release.

As described in the LWN coverage, this is largely due to the inclusion of Greybus in the staging tree, but BayLibre has also been active in several other areas:

peachpitAmlogic SoC family

  • added SPI support for flash controller (spifc)
  • added USB host support
  • added PWM support
  • added secure monitor support and NVMEM
  • added watchdog support
  • added AO clocks and reset
  • added IR/remote support
  • added I2C support
  • added MHU/mailbox support
  • network: added new DWMAC glue supporting GXBB

TI DaVinci SoC family

  • added  LCDK board support
  • Audio support
  • NAND support
  • Ethernet
  • MMC/SD supported

ARM OxNAS SoC family:

  • clocksource driver updates

Fixes, cleanups for BayLibre ACME hardware:

  • gpio: pca953x: code refactoring
  • gpio: fix an incorrect lockdep warning
  • eeprom: at24: check if the chip is functional in probe()

bl-v4-9-status

 

 

BayLibre contributions to the Linux Kernel, v4.8

Version 4.8 of the Linux kernel has just been announced and you can see the always excellent summary of new features at KernelNewbies as well as an overview at LWN.net.

At BayLibre, we’re active in the kernel development community and here’s a brief summary of our contributions merged into v4.8:

Support for the Amlogic 64-bit SoCs:

  • Basic boot, DT support, timers, IRQs
  • Core drivers: clock controller, pin controller, reset controller
  • Ethernet
  • Boards: Amlogic P200 board, Hardkernel Odroid-C2 board

Misc. ARM SoC support

  • Add support for Qualcomm MDM9615
  • TI DaVinci: add support for DA850-LCDK board: NAND, SD/MMC, ethernet
  • Oxford Semiconductor OXNAS family: pinctrl, GPIO, timers

Other Drivers

  • Support to read at24 EEPROMs on BayLibre: ACME boards

In total, 63 patches authored by BayLibre engineers were merged this cycle.  See the kernel git tree for all the details.

bl-changes-v4-8

 

Kernel Recipes 2016

kr-khilman-1
BayLibre was proud to be a sponsor of this this years Kernel Recipes conference in Paris.  Kernel Recipes is a small, technical conference focused on various topics related to the Linux Kernel.

kr-crowdI was a speaker again this year, and  gave a talk about the kernelci.org project.  The talk was a brief overview of the project, its history and ways to contribute.   Slides available here and video recordings are also available.

One of the fun parts of Kernel Recipes was all the speakers and some lucky audience members got caricatures of them drawn by artist Frank Tizzoni.  Here is one of me and one of the crowd, with a bunch more available on Kernel Recipes Twitter feed.