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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F294BC7618E for ; Fri, 21 Apr 2023 09:09:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231666AbjDUJJe (ORCPT ); Fri, 21 Apr 2023 05:09:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230480AbjDUJJb (ORCPT ); Fri, 21 Apr 2023 05:09:31 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 89F4D1B1; Fri, 21 Apr 2023 02:09:30 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 1DBE664EAE; Fri, 21 Apr 2023 09:09:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4B13CC433EF; Fri, 21 Apr 2023 09:09:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1682068169; bh=VCPEu+xt9KicucItLEUpvnOVJheKg0NzwoZBIA+/Eyk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HnxCzY/fmW73ctJv/i0sjGtgquKsDr0J9kYzqljAwycgah/KuPkJWbTHWpZEHubc5 aU+jg5FAPvueIcN5XWBgDfCogy31nqrc5KETCP9cHD4RUiXjySifgOsoiPvJyYPy++ 8o6BAePNG+p6ItB37BgOVvRzGa/p0io5EnQtLcW3dbtyln8r54A4Pd0HYMPqRfxIrk tUaxnBOf33LtlqJFhZm8XUQyYf+gRP2loZE6YN6hIkXNOO3a2nKtyQBj/gbnBpN33E BkYEPTh/FOI9OUa3T/C4NoeCCTA8NuaQP2oo6OoQwaVbwU7xCsevEYAsGsuzSHfcot HeFrTilNDwyXw== From: Lorenzo Pieralisi To: tjoseph@cadence.com, robh@kernel.org, kw@linux.com, bhelgaas@google.com, nadeem@cadence.com, Siddharth Vadapalli Cc: Lorenzo Pieralisi , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, vigneshr@ti.com, srk@ti.com, nm@ti.com Subject: Re: [PATCH v2] PCI: cadence: Fix Gen2 Link Retraining process Date: Fri, 21 Apr 2023 11:09:22 +0200 Message-Id: <168206814625.77926.12605918077768300523.b4-ty@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230315070800.1615527-1-s-vadapalli@ti.com> References: <20230315070800.1615527-1-s-vadapalli@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 15 Mar 2023 12:38:00 +0530, Siddharth Vadapalli wrote: > The Link Retraining process is initiated to account for the Gen2 defect in > the Cadence PCIe controller in J721E SoC. The errata corresponding to this > is i2085, documented at: > https://www.ti.com/lit/er/sprz455c/sprz455c.pdf > > The existing workaround implemented for the errata waits for the Data Link > initialization to complete and assumes that the link retraining process > at the Physical Layer has completed. However, it is possible that the > Physical Layer training might be ongoing as indicated by the > PCI_EXP_LNKSTA_LT bit in the PCI_EXP_LNKSTA register. > > [...] Applied to controller/cadence, thanks! [1/1] PCI: cadence: Fix Gen2 Link Retraining process https://git.kernel.org/pci/pci/c/eac223e85208 Thanks, Lorenzo