On Fri, May 20, 2016 at 04:28:23PM +0200, Sebastian Frias wrote: > Hi, > > Some bootloaders (like U-boot) support several HW devices: serial, > network, NAND, USB, etc. most of which are also supported by Linux. > > So the question is: is code shared? I mean, I understand that the > drivers need to talk to the appropriate API, and such API could be > different between Linux and U-boot. > But putting that aside, would it be naive to imagine that some "core" > functionality could be shared? Or would that part be so small it is > not worth the effort? > > Since many companies use both, U-boot and Linux, I would figure they > try their best to optimize engineering resources and share code, > right? > In that case, I also wonder how do they share DT descriptions that > right now are being stored in the Linux kernel tree. > > We'd like to share code/DT for obvious reasons, what would you guys > suggest?
So, in all cases, Linux is always the primary. In some cases in U-Boot we port drivers over (NAND is a good example here). In other cases, things are similar enough that it's having done it in one place it's easy enough to do it again in the other. -- Tom
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