From mboxrd@z Thu Jan 1 00:00:00 1970 From: Russell King - ARM Linux admin Subject: Re: [PATCH 02/10] ARM: disable CONFIG_IDE in footbridge_defconfig Date: Mon, 22 Mar 2021 16:59:56 +0000 Message-ID: <20210322165956.GY1463@shell.armlinux.org.uk> References: <20210318045706.200458-1-hch@lst.de> <20210318045706.200458-3-hch@lst.de> <20210319170753.GV1463@shell.armlinux.org.uk> <20210319175311.GW1463@shell.armlinux.org.uk> <20210322145403.GA30942@lst.de> <20210322151503.GX1463@shell.armlinux.org.uk> <20210322151823.GA2764@lst.de> Mime-Version: 1.0 Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender: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-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=/wzJhKM6WR08BxO9Rx9F+4jrBkWZ2G6YTLOBTI0aOD0=; b=UkTSwJFrJA41g1Jpc9MQFy2W/ 3nnqiHqPlY4LT6afefhGXkSe38OlG4Cj6N+5xVV14AJBJMevjOhRDBP5Y3UOkxdynEVHg/OYNa8R9 k1/Nszw3tb5VViTAXoO8RddWSZ2JAGCMwtfo7bPOdavpFJB531CmzgpFgVkNHM5D/nlPV8yMZMbPB jx251IdjkhlJbqWh8gNG9EgWx+ciuVMhdCeGv8/y6BoKRw/c8QrVMWOfCmb5xLEBSqjRksgFiN0j7 oAzOcBF7RbmQ1Hf2ihsxu7hF9Hfsxg7Dzj4O0i88qDZM0GQrqiY+kBQSCFMb1WkgPYx6Cg9N9lZeE hSdnyA1hg==; Content-Disposition: inline In-Reply-To: <20210322151823.GA2764@lst.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane-mx.org@lists.ozlabs.org Sender: "Linuxppc-dev" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Christoph Hellwig Cc: Jens Axboe , Thomas Bogendoerfer , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-ide@vger.kernel.org, linux-m68k@lists.linux-m68k.org, Ivan Kokshaysky , linux-alpha@vger.kernel.org, Geert Uytterhoeven , Matt Turner , linuxppc-dev@lists.ozlabs.org, "David S. Miller" , linux-arm-kernel@lists.infradead.org, Richard Henderson On Mon, Mar 22, 2021 at 04:18:23PM +0100, Christoph Hellwig wrote: > On Mon, Mar 22, 2021 at 03:15:03PM +0000, Russell King - ARM Linux admin wrote: > > It gets worse than that though - due to a change to remove > > pcibios_min_io from the generic code, moving it into the ARM > > architecture code, this has caused a regression that prevents the > > legacy resources being registered against the bus resource. So even > > if they are there, they cause probe failures. I haven't found a > > reasonable way to solve this yet, but until there is, there is no > > way that the PATA driver can be used as the "legacy mode" support > > is effectively done via the PCI code assigning virtual IO port > > resources. > > > > I'm quite surprised that the CY82C693 even works on Alpha - I've > > asked for a lspci for that last week but nothing has yet been > > forthcoming from whoever responded to your patch for Alpha - so I > > can't compare what I'm seeing with what's happening with Alpha. > > That sounds like something we could fix with a quirk for function 2 > in the PCI resource assignment code. Can you show what vendor and > device ID function 2 has so that I could try to come up with one? I already have a quirk in arch/arm/kernel/bios32.c for this - but it is no longer sufficient due to changes in the PCI layer, where much of this is documented. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!