Re: [PATCH v4 6/7] arm64: dts: allwinner: a100: reserve RAM for ATF

[Alexander Sverdlin <alexander.sverdlin@gmail.com>]

Hi Jernej,

On Sat, 2026-06-13 at 11:38 +0200, Jernej Škrabec wrote:
> > > > Add reserved-memory node carving out Trusted Firmware-A region spanning
> > > > fixed 256K from physical address 0x40000000. Even though Allwinner ATF
> > > > itself passes the address range in the fdt to U-Boot, U-Boot currently
> > > > only reserves this memory internally, but doesn't carve out the region
> > > > in the fdt passed to Linux.
> > > > 
> > > > Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
> > > 
> > > NAK. It is job of boot procedure to properly inject TF-A reserved node.
> > > Any issue should be fixed there.
> > 
> > 
> > like in commit 0d17c865118881609ea7e381c7cadbb7979cc596
> > ("arm64: dts: allwinner: Add Allwinner H616 .dtsi file")
> >      Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
> > 
> > ? ;-)
> 
> I was against that too.
> 
> It's time to be fixed in bootloader.

I agree, I was wondering about this shortcut as well... I'll implement
some sort of generic reserved memory handling in U-Boot.

-- 
Alexander Sverdlin.