On 02/15/2016 07:38 PM, Aaro Koskinen wrote: > Hi, > > On Mon, Feb 15, 2016 at 06:52:20PM +0100, Heinrich Schuchardt wrote: >> On 02/15/2016 12:16 PM, Sergei Shtylyov wrote: >>> On 2/15/2016 8:26 AM, Heinrich Schuchardt wrote: >>>> Downstream packages like Debian flash-kernel rely on >>>> /proc/device-tree/model >>>> to determine how to install an updated kernel image. >> >> Would you support a patch having the following strings? >> >> model = "CAVM, Octeon 3860"; >> model = "CAVM, Octeon 6880"; > > The built-in DTBs are shared by multiple completely different boards > (from multiple different manufacturers). How would those strings help > for cases like flash-kernel? > > A. > Hello Aaro, flash-kernel has a database /usr/share/flash-kernel/db/all.db with entries like: Machine: LeMaker Banana Pi Kernel-Flavors: armmp armmp-lpae Boot-Script-Path: /boot/boot.scr DTB-Id: sun7i-a20-bananapi.dtb U-Boot-Script-Name: bootscr.sunxi Required-Packages: u-boot-tools Machine refers to the value of /proc/device-tree/model. DTB-Id is the dtb to be installed. So what flash-kernel does is: - look up value of /proc/device-tree/model - retrieve correlated dtb file name from database - install dtb with this name - create symbolic links for the dtb If multiple boards use the the same dtb that is fine with flash-kernel as long as the value of model is unique per dtb. Best regards Heinrich Schuchardt
