As promised in yesterday’s post about kernel version 3.10.9, this post contains a table of functionality present on kernel based primarily on the main-line linux-next tree from 2013-11-05.
The updates to that kernel needed to get this functionality are in our boundary-imx_3.12.0 branch on Github, and at the bottom of this post, we’ll describe the changes in broad strokes.
As shown in the table, there is a substantial amount of functionality available, but some key pieces such as VPU, GPU, touch screen, and camera support are not yet available.
|Function||4.1.0 kernel||SABRE Lite||Nitrogen6Q||Nitrogen6-Lite|
|SD Card||Yes||Yes||Yes||not yet|
|Ethernet||Yes||Yes, sometimes stops working on nfs boot||Yes, sometimes stops working on nfs boot||not yet|
|USB Host||Yes||Yes||Yes||not yet|
|USB Slave||Yes||Yes||Yes||not yet|
|USB OTG||Yes||Yes||Yes||not yet|
|Audio out||Yes||Yes||Yes||not yet|
|GPIO Buttons||Yes||Yes||Yes||not yet|
|Wi-Fi||Yes||N/A||not yet||not yet|
|BT||Yes||N/A||not yet||not yet|
|Freescale LVDS||Yes||Yes||Yes||not yet|
|1024×600 LVDS||Yes||Yes||Yes||not yet|
|800×480 RGB||Yes||Yes||Yes||not yet|
|Composite video out||Yes||not yet||not yet||not yet|
|eGalax (Hannstar)||Yes||not yet||not yet||not yet|
|ft5x06 (7″ PCAP)||Yes||not yet||not yet||not yet|
|tsc2004 (7″ Resistive)||Yes||not yet||not yet||not yet|
|OV5642 parallel||Yes||not yet||not yet||not yet|
|OV5640 MIPI||Yes||not yet||not yet||not yet|
|ADV Composite video||Yes||not yet||not yet||not yet|
|Thermal sensor||Yes||Yes||Yes||not yet|
If you look at the commit log for boundary-imx_3.12.0, you’ll see a commit with the comment
Add linux-next specific files for 20131105. This commit represents linux-next as of November 5, 2013, and each of the commits below this in the list are staged for release into the next kernel release of the Linux kernel.
Above that, you’ll see a series of four patches by Marek Vasut regarding PCIe. These have been posted to the linux-arm mailing list, but have not yet been merged into linux-next.
As of this writing, there are 19 additional patches including three from Fabio Estevam, one from Peter Chen, and 15 by Troy Kisky. These patches have not yet been reviewed on linux-arm and have a high likelihood of changing during the process.