Category: kernel

capes, kernel, linux, u-boot6 Comments

Using Device Tree Overlays, example on BeagleBone Cape add-on boards

mopdenacker

The concept of Device Tree overlays The Device Tree language is a way to describe hardware that is present in a system and cannot be automatically detected. That’s the case of devices directly implemented on a System on a Chip, such as serial ports, Ethernet or Nand flash controllers. That’s also the case of devices connected to a number of buses, such as I2C and SPI, that do not provide mechanisms for dynamic enumeration and identification of devices. For a given CPU architecture (ARM, PowerPC, etc), such a description allows to have a unique kernel supporting many different systems with … Continue reading Using Device Tree Overlays, example on BeagleBone Cape add-on boards

beagleboard, kernel, linux, omap, omap35x, open sourceLeave a comment

Several OMAP/Beagle patches land upstream for Linux 2.6.33

jkridner

I’m feeling pretty happy and excited today looking at the patches Linus Torvalds has recently merged into the Linux kernel mainline, such as a huge patch set from Tony Lindgren[1]. I’m particularly happy to see that DSS2 is there[2], so there shouldn’t be any more confusion about what display driver to use on OMAP. The USB EHCI (host port) driver also finally got merged[5]. I also see a large number of power management patches being included. Baseline support for several OMAP3 systems has also been included, including the Always Innovating Touch Book[3], AM3517 EVM[6], IGEPv2[7], CM-T35[8], OMAP3630 Zoom-3[9] and some … Continue reading Several OMAP/Beagle patches land upstream for Linux 2.6.33