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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D8EB7C4345F for ; Fri, 12 Apr 2024 11:24:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=X8r/vGNdDHuI2dyYv6ZCSGdWPA+yUWD5ny9r7wDXOtg=; b=1M/kgJgDRq7Pfp UmNJRDDTXNv1CcI8iYsc1+g2uciJ3JFpDNNsURBtodAqC/+8pJSP7cDJg+7WCEDCgE3oNM8D8b804 vCac7U+u372U/hGID1Ph6APqqhXshvkMXIhU/aGBmvvxKBSkRz2OvpY4v0/kpLCZlbDmwhL27MY4Y yCYzIWOK9R4h26E3UUb1zY+jBFs84yGZo/4Me0j29+toCeQxPJuPPubP/bVtps0fVzVffVS21ln9e RMn4XRVHQGCIowWovpntJF4gTJZlK4vn5d798C9NVF04U4wRmZmxZIkOOrtEBOPxb5JiXUXMuXYXC y2qfAv30j3vKUa6I4Sfw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rvF1L-0000000GtqV-08el; Fri, 12 Apr 2024 11:24:39 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rvF1H-0000000Gtps-1fcb; Fri, 12 Apr 2024 11:24:36 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 4F78E61D89; Fri, 12 Apr 2024 11:24:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 14499C113CC; Fri, 12 Apr 2024 11:24:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712921073; bh=R3EqEdsxBODVZiR1t4FsAY+uuXyMbJl01zKUTUB4X0I=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=CqQ7kT95yl/1TSCMsM0Ubak214wpR+mfm7iQA7CU/OuTGl4C/gKGQhlCR9OghpH3I 8oC4lxUB6jhgZPWP2FZsD9sgeb9MD1W2BpkZbYpJt3GKkGQl979HM4DiZSyCTrnPms aNEmXpDfsiKmPPMlyVIwPbLKUZ0FFCyQEYA0i2sNDA6/49qNyY7qdg6FXtPwvMJdsA L3hAVRCAY1On5mr7niXzvgTXwT8U9dSP28znSmJ4X3f5bwKfo1zXEyuGFjAn8k7Xfq 5rt4RfJSM2foXL8pqWVpetqDGk03OylwFPQvIsDpdEbwQMuIoGAyjjPqosdAJ++93W kgjBDILRl6VzA== Date: Fri, 12 Apr 2024 16:54:29 +0530 From: Vinod Koul To: Marcel Ziswiler Cc: "linux-phy@lists.infradead.org" , "hongxing.zhu@nxp.com" , "linux-imx@nxp.com" , "robh@kernel.org" , "kishon@kernel.org" , "heiko@sntech.de" , "l.stach@pengutronix.de" , "yang.lee@linux.alibaba.com" , "linux-kernel@vger.kernel.org" , "tharvey@gateworks.com" , "shawnguo@kernel.org" , "kernel@pengutronix.de" , "s.hauer@pengutronix.de" , "mkl@pengutronix.de" , "linux-arm-kernel@lists.infradead.org" , "imx@lists.linux.dev" , "festevam@gmail.com" Subject: Re: [PATCH v1 0/1] phy: freescale: imx8m-pcie: facing pcie link-up instability Message-ID: References: <20240322130646.1016630-1-marcel@ziswiler.com> <171239511427.352254.8525089049107113141.b4-ty@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240412_042435_632665_D98D3E95 X-CRM114-Status: GOOD ( 18.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 07-04-24, 22:22, Marcel Ziswiler wrote: > Hi Vinod > = > On Sat, 2024-04-06 at 14:48 +0530, Vinod Koul wrote: > > = > > On Fri, 22 Mar 2024 14:06:31 +0100, Marcel Ziswiler wrote: > > > In our automated testing setup, we use Delock Mini-PCIe SATA cards [1= ]. > > > While this setup has proven very stable overall we noticed upstream on > > > the i.MX8M Mini fails quite regularly (about 50/50) to bring up the P= CIe > > > link while with NXP's downstream BSP 5.15.71_2.2.2 it always works. As > > > that old downstream stuff was quite different, I first also tried NXP= 's > > > latest downstream BSP 6.1.55_2.2.0 which from a PCIe point of view is > > > fairly vanilla, however, also there the PCIe link-up was not stable. > > > Comparing and debugging I noticed that upstream explicitly configures > > > the AUX_PLL_REFCLK_SEL to I_PLL_REFCLK_FROM_SYSPLL while working > > > downstream [2] leaving it at reset defaults of AUX_IN (PLL clock). > > > Unfortunately, the TRM does not mention any further details about this > > > register (both for the i.MX 8M Mini as well as the Plus). Maybe someb= ody > > > from NXP could further comment on this? > > > = > > > [...] > > = > > Applied, thanks! > > = > > [1/1] phy: freescale: imx8m-pcie: fix pcie link-up instability > > =A0=A0=A0=A0=A0 commit: 3a161017f1de55cc48be81f6156004c151f32677 > = > Sorry, but it is slightly confusing whether v1 or v2 now got applied. I b= elieve v1 but then only the commit > messages differ. However, please note that only v2 included information o= n how to proceed concerning > backporting to stable 6.1.x. V2 was picked, you can check phy tree Somehow b4 sent email for v1 as well -- = ~Vinod _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel