On 10.1.2017 18:52, Stephen Warren wrote: > On 01/10/2017 09:58 AM, Alexander Graf wrote: >> On 01/10/2017 05:47 PM, Ryan Harkin wrote: >>> On 10 January 2017 at 16:35, Alexander Graf <ag...@suse.de> wrote: >>>> On 01/10/2017 05:31 PM, york sun wrote: >>>>> On 01/10/2017 05:02 AM, Alexander Graf wrote: >>>>>> On 01/10/2017 01:58 PM, Michal Simek wrote: >>>>>>> U-Boot configured via DTB can use the same DTB for booting the >>>>>>> kernel. >>>>>>> When OF_CONTROL is used fdtcontroladdr is setup and can be use for >>>>>>> boot. >>>>>>> >>>>>>> Signed-off-by: Michal Simek <michal.si...@xilinx.com> >>>>>>> --- >>>>>>> >>>>>>> Didn't check if there is any side effect or not but it looks weird >>>>>>> when >>>>>>> you have DT driver u-boot that you have to load dtb again. >>>>>> I agree, and I think it's very reasonable to try and use the same >>>>>> device >>>>>> tree for U-Boot and Linux. >>>>>> >>> Would this prevent the user loading a DTB into ram and using bootm to >>> over-ride the built-in DTB? >>> >>> I have a background task to refactor u-boot support for ARM Ltd >>> boards. One of many options I was considering was to have a minimal >>> DTB to configure the platform with only the nodes needed for u-boot. >>> The ARM Ltd device trees fluctuate so much, I wouldn't be able to >>> commit to one DTB that will work forever... >> >> No, it's only meant as a fallback when no manual device tree is >> provided. In an ideal world however, device trees are static and >> complete, so you could just put a final dt into U-Boot and have it >> propagated all the way through. > > Can the commit message be updated to reflect this? From the commit > message, it sounds like the control FDT will always be used. Something > like "arm: bootm: fall back to U-Boot's FDT blob when booting kernel" > would sound a lot less scary.
Sure not a problem to change it. Plus there must be a solution for c&p dtb to location where can be resized. Thanks, Michal _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot