Openbmc u-boot trees (was Re: u-boot:rsa adds rsa3072 algorithm)

[ChiaWei Wang]

> From: Jamin Lin <jamin_lin at aspeedtech.com>
> Sent: Monday, February 7, 2022 3:02 PM
> 
> + Ryan, ChiaWei and Dylan
> 
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> -----Original Message-----
> From: Joel Stanley <joel at jms.id.au>
> Sent: Monday, February 7, 2022 2:03 PM
> To: Jamin Lin <jamin_lin at aspeedtech.com>
> Cc: openbmc at lists.ozlabs.org; Troy Lee <troy_lee at aspeedtech.com>; Steven
> Lee <steven_lee at aspeedtech.com>; Andrew Jeffery <andrew at aj.id.au>
> Subject: Openbmc u-boot trees (was Re: u-boot:rsa adds rsa3072 algorithm)
> 
> Hi Jamin,
> 
> On Mon, 7 Feb 2022 at 02:26, Jamin Lin <jamin_lin at aspeedtech.com> wrote:
> >
> > Hi Joel and OpenBMC team,
> >
> >
> >
> > This patch was applied to u-boot/master,
> > http://patchwork.ozlabs.org/project/uboot/patch/20220119082323.4567-2-
> > jamin_lin at aspeedtech.com/
> >
> > Commit   2a4b0d5890deb0c973f8db7bb03adad96aff1050
> >
> >
> https://github.com/u-boot/u-boot/commit/2a4b0d5890deb0c973f8db7bb03ad
> a
> > d96aff1050
> >
> > Could you please help to backport the patch to the openbmc/u-boot tree?
> 
> Sure, I can do that.
> 
> I'd like to start a discussion about the u-boot trees and how we maintain them.
> Currently we have:
> 
>  - upstream; partial 2600 support
>  - aspeed-master-v2019.04, SDK tree maintained by ASPEED
>  - v2019.04-aspeed-openbmc, openbmc maintained by Joel. Based on SDK tree
> 
> In the past I was putting code in the openbmc tree so we could use it for
> bringup, and trying to send pull requests to the SDK tree.
> 
> Now you're sending patches upstream (excellent!) and sending me requests to
> merge into the openbmc tree.
> 
> I would like to see fewer trees.
> 
> In the short term, one option is we put all of the openbmc patches in the SDK,
> and continue using that for openbmc. Would this work for aspeed?

Yes.
Are we going to do this through PRs as usual?

> 
> In the medium term, we should start using upstream releases. There may still
> be some downstream code (as we have for Linux in our dev branches), but this
> will go to zero over time.

Agree.
We are also working on upstreaming fundamental drivers to U-Boot mainline.
Once it is sufficient for most frequently used booting paths, Aspeed will start using it.

Regards,
Chiawei