From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 21 Jan 2026 11:16:11 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1viVFz-003j6T-2G for lore@lore.pengutronix.de; Wed, 21 Jan 2026 11:16:11 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1viVFy-0000Cd-It for lore@pengutronix.de; Wed, 21 Jan 2026 11:16:11 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=oZoE0tx4V/4yd5k1qP7YTPv6QL3UBrW2IhVvyMy1l6Q=; b=kAvJdm5sif6wGdekBQ5bwPwSbZ jsqOfJlb2UHuiGe5BIqhJt7ZlIcZSZShrpXf2tb/w302msCHTCiH6OiE4jgeWviP1x8utjW6Ea8T8 Vp6B47TiXNkMURu6dF6+J4uixAnL9M5/7ocQX8AWF/eynBDIbSliUFrIFS+Y131zg9XPMDuUYm3EF EvLN3L0j7rWOOIgOC7ZBaB368Py9bGlRxSY7OnWci5AR4Wa7lPMnw+/SurqDQ3Syq7k2PYdSctd05 9Q0NyFGEPhqG5ikKSRCK4OjVYE5WGjTnOY416fzX/kw6ZKLmdNGYCU5Yr5OGBGqFRT57hD81QJqAw 9t9VbzCQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1viVFI-00000005FfY-49WW; Wed, 21 Jan 2026 10:15:28 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1viVFG-00000005Fec-0gS7 for barebox@lists.infradead.org; Wed, 21 Jan 2026 10:15:27 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1viVFA-0008TY-Nl; Wed, 21 Jan 2026 11:15:20 +0100 Received: from pty.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::c5]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1viVFB-001jVm-0h; Wed, 21 Jan 2026 11:15:20 +0100 Received: from mfe by pty.whiteo.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1viVFA-0075Xv-1Q; Wed, 21 Jan 2026 11:15:20 +0100 Date: Wed, 21 Jan 2026 11:15:20 +0100 From: Marco Felsch To: Ahmad Fatoum Cc: barebox@lists.infradead.org Message-ID: <20260121101520.xsc6ujwuswpxcufh@pengutronix.de> References: <20260120181333.3375979-1-a.fatoum@pengutronix.de> <20260120181333.3375979-2-a.fatoum@pengutronix.de> <20260121000711.dyjo4pd56c6frd4x@pengutronix.de> <20260121091620.ihi23jg65xbjoupt@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260121_021526_199627_39F2974A X-CRM114-Status: GOOD ( 38.03 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-3.9 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH 2/2] arm: dts: rk356x: rock3a: disable pcie3x2 X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) On 26-01-21, Ahmad Fatoum wrote: > Hello Marco, > > On 1/21/26 10:16, Marco Felsch wrote: > > On 26-01-21, Ahmad Fatoum wrote: > >> With barebox as EFI loader, we always install the barebox DT in a configuration > >> table and leaves it to grub or whatever to decide whether it wants to use it or > >> if it wants to use another DT it finds itself. > > > > Ah, thanks for the explanation :) this wasn't clear to me. Maybe it's > > worth a comment when to use this within the barebox,status description. > > Whether the barebox DT is used for Linux or not is inconsequential though. > We want the barebox DT to be always _usable_ for Linux, even if it's not > used. I thus intentionally didn't list when barebox passes along its own > DT in the binding doc. Get your point but at least your patch here wasn't clear to me in the first place. Therefore my question :) Now with the new barebox,status it isn't clear when to use this. This could be sovled either via policy like: use barebox,status if you're going to toogle the status of an upstream-dt within the barebox. Or via a comment within the DT to make it clear, why barebox,status is used. > > That beeing said, is it worth tying to make it barebox unspecific and > > try to upstream the binding. I had something like bootloader,status or > > bl33,status in my mind. > > I don't think the prospects for upstreaming are favorable. This doesn't describe > hardware, but the fact that the barebox driver needs further work. Good point! > Normally, you would disable drivers that don't work for board, but we can't do that in > a multi defconfig, so we need to disable the device on a per-board basis. > > This is different than secure-status, where device availability is actually > dependent on the security mode of the system. Right, I just wanted to point out, that downstream bindings or downstream behaviors hit us hard in the past. That beeing said, I don't see a problem for barebox,status. Regards, Marco > > Cheers, > Ahmad > > > > >> The support for the Android fastboot's protocol boot command also doesn't pass > >> a DT and expects the bootloader to pass its. > > > > Good to know :) > > > > Thanks, > > Marco > > > >> > >> Cheers, > >> Ahmad > >>> > >>> Regards, > >>> Marco > >>> > >>>> Signed-off-by: Ahmad Fatoum > >>>> --- > >>>> arch/arm/dts/rk3568-rock-3a.dts | 4 ++++ > >>>> 1 file changed, 4 insertions(+) > >>>> > >>>> diff --git a/arch/arm/dts/rk3568-rock-3a.dts b/arch/arm/dts/rk3568-rock-3a.dts > >>>> index bcbfab14a580..b7258d7e61b3 100644 > >>>> --- a/arch/arm/dts/rk3568-rock-3a.dts > >>>> +++ b/arch/arm/dts/rk3568-rock-3a.dts > >>>> @@ -55,3 +55,7 @@ environment_sd: partition@408000 { > >>>> }; > >>>> }; > >>>> }; > >>>> + > >>>> +&pcie3x2 { > >>>> + barebox,status = "disabled"; > >>>> +}; > >>>> -- > >>>> 2.47.3 > >>>> > >>>> > >>>> > >>> > >> > >> > >> -- > >> Pengutronix e.K. | | > >> Steuerwalder Str. 21 | http://www.pengutronix.de/ | > >> 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | > >> Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | > >> > > > > > -- > Pengutronix e.K. | | > Steuerwalder Str. 21 | http://www.pengutronix.de/ | > 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | > Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | > -- #gernperDu #CallMeByMyFirstName Pengutronix e.K. | | Steuerwalder Str. 21 | https://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-9 |