Hi Tom, On Wed, Jun 24, 2015 at 11:19 PM, Beaman, Thomas <thomas.bea...@xerox.com> wrote: > Hi Bin, > > Thanks you for the quick response, my responses are embedded below > > On Wed, Jun 24, 2015 at 10:38 PM, Beaman, Thomas <thomas.bea...@xerox.com> > wrote: >>> Hi Bin, >>> >>> I see that you have created a .dts file for the minnowboard max in >>> arch/x86/dts/minnow.dts What I cannot see is how to load and use this >>> file. I cannot find any example of its use. > >> You can read doc/README.fdt-control to understand how dts is compiled to dtb >> and used by U-Boot. > > I am ok with the compiling part , and this readme does explain the U-Boot FDT > usage. Thanks for pointing this out. > >>> In the RAMBOOT line zboot is used to load the kernel and ramdisk, but it >>> does not take a parameter for an FDT file. Any insight you can provide on >>> the use of a dtb file for the minnow max would be appreciated. > >> zboot is used to load linux kernel while a typical x86 kernel does not >> require dtb (although linux x86 supports device tree as its configuration >> source). And you seems to be confused by dtbs. The dtb U-Boot is using is >> not the same one passed to linux kernel on arm/powerpc. > > You are correct I was confused about the usage of the dtb file in U-Boot. I > know it is probably outside the scope of U-Boot, but do you have any pointers > to info on linux x86 kernel usage of a FDT (dtb) file for configuration source
Please check kernel documentation booting-without-of.txt. But I am wondering why do you want to use FDT on Linux x86 kernel? Regards, Bin _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
