From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 69F57CDB477 for ; Wed, 11 Oct 2023 18:36:13 +0000 (UTC) Received: from mailout4.zoneedit.com (mailout4.zoneedit.com [64.68.198.64]) by mx.groups.io with SMTP id smtpd.web10.24454.1697049369340954712 for ; Wed, 11 Oct 2023 11:36:10 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: denix.org, ip: 64.68.198.64, mailfrom: denis@denix.org) Received: from localhost (localhost [127.0.0.1]) by mailout4.zoneedit.com (Postfix) with ESMTP id 8847240CBB; Wed, 11 Oct 2023 18:36:08 +0000 (UTC) Received: from mailout4.zoneedit.com ([127.0.0.1]) by localhost (zmo14-pco.easydns.vpn [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id arz3496hGsT8; Wed, 11 Oct 2023 18:36:08 +0000 (UTC) Received: from mail.denix.org (pool-100-15-87-159.washdc.fios.verizon.net [100.15.87.159]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mailout4.zoneedit.com (Postfix) with ESMTPSA id 67B2F40C8E; Wed, 11 Oct 2023 18:36:06 +0000 (UTC) Received: by mail.denix.org (Postfix, from userid 1000) id 6D666163CD8; Wed, 11 Oct 2023 14:36:05 -0400 (EDT) Date: Wed, 11 Oct 2023 14:36:05 -0400 From: Denys Dmytriyenko To: Ross Burton Cc: Jon Mason , "meta-arm@lists.yoctoproject.org" Subject: Re: [meta-arm] [PATCH 1/2] arm/boot-wrapper-aarch64: remove recipe Message-ID: <20231011183605.GG2408@denix.org> References: <20231011130203.3871606-1-jon.mason@arm.com> <20231011170803.GF2408@denix.org> <515F76C4-6343-422A-AAF9-13B90492C599@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <515F76C4-6343-422A-AAF9-13B90492C599@arm.com> User-Agent: Mutt/1.5.20 (2009-06-14) Content-Transfer-Encoding: quoted-printable List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 11 Oct 2023 18:36:13 -0000 X-Groupsio-URL: https://lists.yoctoproject.org/g/meta-arm/message/5111 On Wed, Oct 11, 2023 at 05:28:29PM +0000, Ross Burton wrote: > On 11 Oct 2023, at 18:08, Denys Dmytriyenko via lists.yoctoproject.org = wrote: > >=20 > > On Wed, Oct 11, 2023 at 08:02:02AM -0500, Jon Mason wrote: > >> fvp-baser was the only user of this recipe. Since that has been > >> removed, remove this as well. > >=20 > > Is *common* meta-arm layer now being relegated to only serve ARM's ow= n BSP? > >=20 > > I don't know what fvp-baser is or was, but I do know that boot-wrappe= r-aarch64=20 > > is commonly used by other BSPs for early stages of new platform devel= opment=20 > > and board bringup, and/or custom bootflows. > >=20 > > Removing this crucial common component sends the wrong message=E2=80=A6 >=20 > It=E2=80=99s aim is to be a common source of recipes, certainly. >=20 > Can you point us at a BSP layer that uses this recipe? Unfortunately, early stages of new platform development and board bringup= =20 activities aren't done in the open and are not public. By the time a new=20 platform is made public, it usually has all the other pieces of the boot=20 chain integrated - U-boot/EFI, TF-A, OPTEE, etc. Back when I was still with TI we used boot-wrapper-aarch64 to bring up th= e=20 new K3 family of processors and the first 2 platforms - AM65x (A53) and=20 J721e (A72). Though it was before meta-arm was established, so I maintain= ed=20 own version of the recipe inside internal-only layers. A similar situation was with TF-A and OPTEE where BSPs would have own rec= ipes=20 for those components back then. But the only difference is that those wou= ld=20 eventually have to become public, and hence we all worked hard to unify t= hose=20 recipes under meta-arm around early 2020. I'd argue same applies to this=20 boot-wrapper-aarch64 recipe, although it's less visible. I know it's been added to meta-arm as part of Gem5 and you never heard of= =20 anyone else using it, but it is still useful and having a common recipe f= or=20 it is quite beneficial and probably worth a bit extra maintenance burden.= .. --=20 Denys