[fedora-arm] Re: uboot dtb overlays: clarification needed
On Sat, Aug 18, 2018 at 8:31 AM, Alessio Ciregia <alciregi(a)gmail.com> wrote:
On Fri, Aug 17, 2018 at 7:54 PM Peter Robinson
<pbrobinson(a)gmail.com> wrote:
> > - The loaded dtb (on a Raspberry Pi 3) is bcm2837-rpi-3-b.dtb: who
> > tell the system to load such dtb?
>
> U-Boot currently tells it to load.
Ok. And, I don't know if the answer is simple, but how U-Boot knows
which dtb it should load?
If it's loading the kernel provided DT that is determined by the
machine identifier in the HW and a static mapping. If using the
config.txt method U-Boot doesn't need to care because the firmware
provides the DT to U-Boot