Linux Plumbers Conference 2018

Session

Device Tree MC

Nov 14, 2018, 9:00 AM

Pavillion/Ballroom-D (Sheraton Vancouver Wall Center)

Description

Topics
Binding and Devicetree Source/DTB Validation: update and next steps
Binding specification format
Validation Process and Process
How to validate overlays
Devicetree Specification: update and next steps

Reducing devicetree memory and storage size

Overlays

Bootloader and Linux kernel implementation update
Remaining blockers and issues
Use cases
Devicetree compiler (dtc)

Next version of DTB/FDT format
Motivated by desire to replace metadata being encoded as normal data (metadata for overlays)
Other desired changes should be considered
Boot and Run-time Configuration
Pain points and needs
Multi-bus devices

Feedback from the trenches

how DTOs are used in embedded devices in practice
in U-Boot and Linux
in systems with FPGAs
Use of devicetrees in small code/data space (e.g. U-Boot SPL)

Connector node bindings

FPGA issues

Presentation materials

Video

212. Welcome & Introduction

Frank Rowand, Mr Sean Hudson (OpenEmbedded & The Yocto Project)

11/14/18, 9:00 AM

213. Q&A Session 1 + General Discussion

Frank Rowand, Mr Sean Hudson (OpenEmbedded & The Yocto Project)

11/14/18, 9:10 AM

216. json-schema for DT bindings and validation

Mr Rob Herring (Linaro)

11/14/18, 9:25 AM

217. DT memory (kernel), DT memory (bootloader), storage (FDT) size

Frank Rowand, Mr Simon Glass (Google)

11/14/18, 10:15 AM

220. Q&A Session #2

Frank Rowand, Mr Sean Hudson (OpenEmbedded & The Yocto Project)

11/14/18, 10:50 AM

219. New FDT format & Overlays

Frank Rowand

11/14/18, 11:10 AM

214. FPGA + DT

Alan Tull (Intel), Mr Moritz Fischer

11/14/18, 11:40 AM

221. Summary, Action Items, and closing

Frank Rowand, Sean Hudson (OpenEmbedded & The Yocto Project)

11/14/18, 12:10 PM

218. DT Specification update

Mr Rob Herring (Linaro)