From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 21 Jan 2026 01:08:04 +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 1viLlU-003ZKY-2T for lore@lore.pengutronix.de; Wed, 21 Jan 2026 01:08:04 +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 1viLlT-0003md-OO for lore@pengutronix.de; Wed, 21 Jan 2026 01:08:04 +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=7fQFHV8vdxSgNGnHNJaXr7M6h5i3sJ5leaN/WEhtik4=; b=a3kbj/z1H+pTzvpJUX0IzShmUw pOkPiT6GVUQ3hY8kNZDlwVPAxJK1JmxleVhKZwOrvZKXqPttBUFWNubyngvkMBjh2AbymDqJraA3m OmxYZd/g0G7hLSJpwJzh80AmE6WS7gcWTmSpe6P80C2rK78XZeZeU0pzpl6RNyePalssXUeiZnAJA mXp4u54evw8XhMGGk9PhhMV2ith2NUAuzuMS3J3QCzIgqhtfp6fislnk2Wa2ZA6p5xtcyjZ+rEr6B NMLoGRpzVxlb62j5HsM3B1c382vAeKciTAVLMb2Qsdm0mYPwftzQOlp7BC/XTAu4VKlpQ2Y9VOI+0 aXAYjkwA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1viLkm-00000004eOP-1CES; Wed, 21 Jan 2026 00:07:20 +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 1viLkj-00000004eNu-0Nzz for barebox@lists.infradead.org; Wed, 21 Jan 2026 00:07:18 +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 1viLkd-0003gx-Az; Wed, 21 Jan 2026 01:07:11 +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 1viLkd-001fJV-2d; Wed, 21 Jan 2026 01:07:11 +0100 Received: from mfe by pty.whiteo.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1viLkd-005QBZ-09; Wed, 21 Jan 2026 01:07:11 +0100 Date: Wed, 21 Jan 2026 01:07:11 +0100 From: Marco Felsch To: Ahmad Fatoum Cc: barebox@lists.infradead.org Message-ID: <20260121000711.dyjo4pd56c6frd4x@pengutronix.de> References: <20260120181333.3375979-1-a.fatoum@pengutronix.de> <20260120181333.3375979-2-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260120181333.3375979-2-a.fatoum@pengutronix.de> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260120_160717_156801_12EBFA0B X-CRM114-Status: GOOD ( 26.30 ) 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=-4.0 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) Hi Ahmad, On 26-01-20, Ahmad Fatoum wrote: > The board hangs occasionally on PCI probe after: > > phy7: lane number 0, val 1 > > On other boots, it continues to: > > rockchip-dw-pcie 3c0800000.pcie@fe280000.of: Phy link never came up > > In both cases, the hang affects the second PCIe host controller > to probe and the first probe never hangs: > > rockchip-dw-pcie 3c0000000.pcie@fe260000.of: Phy link never came up > > This hang happens on the very first read access to the PCI controller > at register PCIE_ATU_VIEWPORT. Reading Linux code, the first access > seems to be to PCIE_VERSION_NUMBER (0x8F8), but accessing that in > barebox equally hangs from time to time. > > My board doesn't have any PCIe devices connected and this hang > doesn't happen in Linux and doesn't happen on the QNAP > TS433-eU, which is also RK3568, but actually has PCIe devices, which are > probed normally. > > Disable the device in barebox, so the board is usable with > rockchip_v8_defconfig, which enables the PCI driver. > barebox,status is used, so the Linux device tree is not affected. The barebox internal device-tree is passed to Linux? Else we just can make use of the "normal" status field since it would be not propagated to Linux as well. 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 > > > -- #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 |