From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bin Meng Date: Wed, 24 Jun 2015 22:54:30 +0800 Subject: [U-Boot] minnowboard max .dtb file In-Reply-To: <1302F7310B9ED04A864E1F2C0AA459BB2A2DA30E@USA7109MB003.na.xerox.net> References: <1302F7310B9ED04A864E1F2C0AA459BB2A2DA30E@USA7109MB003.na.xerox.net> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de +Simon Hi Tom, On Wed, Jun 24, 2015 at 10:38 PM, Beaman, Thomas 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. > 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. Regards, Bin