[PATCH 0/2] Add support for loading images above 4GB

[Simon Glass]

Hi Michal,

On Mon, 7 Sep 2020 at 03:01, Michal Simek <michal.simek at xilinx.com> wrote:
>
> Hi Simon,
>
> On 07. 09. 20 3:43, Simon Glass wrote:
> > Hi Michal,
> >
> > On Thu, 3 Sep 2020 at 06:30, Michal Simek <michal.simek at xilinx.com> wrote:
> >>
> >> Hi,
> >>
> >> On 03. 09. 20 13:16, Heinrich Schuchardt wrote:
> >>> On 9/3/20 1:03 PM, Michal Simek wrote:
> >>>> Hi,
> >>>>
> >>>> We have several use cases where customers want to partition memory by
> >>>> putting NS images above 4GB. On Xilinx arm 64bit SOC 0-2GB can be used for
> >>>> others CPU in the systems (like R5) or for secure sw.
> >>>> Currently there is limitation in SPL to record load/entry addresses in
> >>>> 64bit format because they are recorded in 32bit only.
> >>>> This series add support for it.
> >>>> Patches have been tested on Xilinx ZynqMP zcu102 board in SD bootmode with
> >>>> images generated by binman. Because u-boot is using
> >>>> CONFIG_POSITION_INDEPENDENT it can be put to others 4k aligned addresses
> >>>> and there is no real need to build it to certain offset.
> >>>>
> >>>> Thanks,
> >>>> Michal
> >>>
> >>> Hello Michal,
> >>>
> >>> does this series require changes to doc/uImage.FIT/source_file_format.txt?
> >>
> >> I am not changing fit format. I am just changing how SPL records
> >> loadables in DT fit-images node. And also series is using FIT functions
> >> for reading these properties (at least in this version).
> >
> > Well I think there should be some mention of the 32/64 bit issue added
> > to the FIT docs. How about adding an example with 64-bit addresses?
>
> git grep "fit-images" doc/
> and output is 0. It means we really don't have any documentation for
> fit-images embed node.
> It means we should create one.
>
> /fit-images are related to loadables property that's why I think make
> sense to document them together.
>
> What about doc/uImage.FIT/howto.txt?

Sounds good.

Regards,
Simon