On Wed, Aug 19, 2009 at 09:45:13AM +0800, tiejun.chen wrote: >Josh Boyer wrote: >> On Tue, Aug 18, 2009 at 10:28:02AM +0800, Tiejun Chen wrote: >>> Summary: powerpc/405ex: Support cuImage for PPC405EX >>> Reviewers: Benjmain and linux-ppc >>> ---------------------------------------------------- >>> These patch series are used to support cuImage on the kilauea board based >>> on PPC405ex. >>> >>> Tested on the amcc kilauea board: >> >> Hm. The U-Boot version that ships on the AMCC Kilauea board is FDT aware, so >> cuImage shouldn't be needed at all. I'm slightly confused why we need this. > >That the newer u-boot can aware extra on Kilauea is really as you said. But I >think I/we need to consider some other requirements for 405EX, such as only >using one image for convenient on embedded system, and u-boot don't pass dtb >for >kernel since it will be isolated with one customer software layer. > >And actually to support old U-boot compatibility is original *goal* of >implementing cuImage in kernel as we know. Right?
Yes. Supporting _old_ U-Boot compatibility. Not FDT aware U-Boot :). >As Documentation/powerpc/bootwrapper.txt I think the kernel should support more >image variant to satisfy different requirement. Sometimes that is also beyond >we >can discuss here. > >> Are you using it for some other board derived from 405EX that doesn't have >> an FDT aware U-Boot? >> > >Yes, this is really another factor. Anyway thinks your comments. That's fine then. I have no real problems with having a cuImage that works on Kilauea. I just wouldn't want to promote it as the default because the cuImage wrapper is a bit of a hack. Anyway, I'll review the patches soon. Thanks for the explanation. josh _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
