Device Tree overlays and U-Boot extension board management, Köry Maincent скачать в хорошем качестве

Device Tree overlays and U-Boot extension board management, Köry Maincent

The Device Tree is the data structure that describes the hardware components of an embedded board, now used on a vast majority of CPU architectures. In this talk, we will start by introducing the mechanism of Device Tree Overlays, which are a way of extending the Device Tree itself to describe additional hardware. We will show how Device Tree Overlays are written, compiled, and applied to a base Device Tree, and what is the status of Device Tree Overlays support in U-Boot and Linux. We will take the example of the BeagleBoard.org project, showing how Device Tree overlays are used to make CAPE extension boards compatible with different boards. Finally we will describe our proposal, already submitted to the community, to add an extension board management facility to U-Boot, which automatically detects, loads and applies the appropriate Device Tree Overlays depending on the extension boards that are detected. Slides: https://bootlin.com/pub/conferences/2... #embedded #linux #uboot #beagleboard #devicetree Bootlin's embedded Linux system development training course: https://bootlin.com/training/embedded... Bootlin's Linux kernel driver development training course: https://bootlin.com/training/kernel/ Bootlin's Yocto Project and OpenEmbedded system development training course: https://bootlin.com/training/yocto/ Bootlin's Buildroot system development training course: https://bootlin.com/training/buildroot/ Bootlin's Linux graphics stack training course: https://bootlin.com/training/graphics/ Bootlin Embedded Linux boot time optimization training course: https://bootlin.com/training/boot-time/