[PATCH 0/4] bloblist: fdt: Clean up the code

[Raymond Mao]

Hi Tom and Simon,

On Fri, 28 Mar 2025 at 21:00, Raymond Mao <raymond.mao at linaro.org> wrote:
>
> Hi Tom and Simon,
>
> On Fri, 28 Mar 2025 at 20:02, Tom Rini <trini at konsulko.com> wrote:
> >
> > On Fri, Mar 28, 2025 at 11:38:14PM +0000, Simon Glass wrote:
> > > Hi Tom,
> > >
> > > On Fri, 28 Mar 2025 at 10:18, Tom Rini <trini at konsulko.com> wrote:
> > > >
> > > > On Fri, Mar 28, 2025 at 09:43:54AM -0600, Simon Glass wrote:
> > > >
> > > > > The bloblist code took what I consider to be a wrong turn a year or so
> > > > > ago. As discussed with Tom, this series proposes a way to arrange things
> > > > > so that it is simpler to understand and manage.
> > > > >
> > > > > - Unwind some of the nesting in bloblist_init()
> > > > > - Avoid needing to init the bloblist just to get the FDT
> > > > > - Create a deterministic OF_BLOBLIST option rather than using guesswork
> > > > >
> > > > > It is to be hoped that we can get a platform which uses OF_BLOBLIST into
> > > > > CI at some point. In the meantime, the standard passage series[1] could
> > > > > be resurrected to give some coverage.
> > > > >
> > > > > [1] https://patchwork.ozlabs.org/project/uboot/list/?series=281465&state=*
> > > >
> > > > Based on how it's documented to be run in
> > > > doc/board/armltd/vexpress64.rst in the next branch, have you confirmed
> > > > that platforms using the handoff spec still work?
> > >
> > > I believe so, yes. I don't have that board to test it though. Raymond
> > > may be able to test this series on QEMU?
> >
> > I was pointing you at the docs so that you would have access to testing
> > it. That's part of the docs, running the emulator.
> >
>
> I can help to test the firmware handoff on qemu.
> I have all the necessary changes and unit tests for the OP-TEE repo
> qemu v8 build to test this.
> I will try to find some time early next week to review and test this
> series before turning back to you.
>

Just a follow-up on the testing with TF-A and OP-TEE.
Unfortunately, the patch series breaks the transfer list handoff to
U-Boot completely and just end up with below error when U-Boot boots:
```
No valid device tree binary found at 0000000000000000
initcall failed at call 0000000060097bcc (err=-2)
### ERROR ### Please RESET the board ###
```

U-Boot test version:
'next' branch + this series + my patch [1] to point fdt_addr to gd->fdt_blob.

[1]: https://lore.kernel.org/u-boot/20250331224011.2734284-2-raymond.mao@linaro.org/

Regards,
Raymond

> Regards,
> Raymond
>
> > --
> > Tom