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 C754EC4332F for ; Thu, 17 Nov 2022 21:18:57 +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:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=8fp5pbtnBjSqXSTqHjwQTdQs43POU1l1e3RDc+Uc73U=; b=fS9Cls4X2yaQVL SbwyFAltxNoKbHViX3UvF3WZcf7zFWkyj8qhly6uqscR6BkfZns8Tqpn/WMDlik+VaJtKzPbc3y1l FGSPjAZIMXZi6jHEB9qFlppPBDcQ2XlUR4eMBCl0JqOCNdNBlgCTUfRtquc7dnpWIzP1+o2A+Fbdj sua8ExT0frHK+dUV5++AvipQTWo2AkJIaDE7zMNnXUmRqXWBRofhENgxOBaTm9V9Jq8norACULvUH YJg6qZpjV4npcPgFoWKykH1vxBPzrQpu4JyXsopa9CX6iEqzKunu/9/Ik8pdxYdPQDSHF/zKKGwP3 xckj6agdY+4t1+p634zA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ovmGx-00HaQq-N6; Thu, 17 Nov 2022 21:18:12 +0000 Received: from relay10.mail.gandi.net ([217.70.178.230]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ovmFZ-00HZJN-OH for linux-mtd@lists.infradead.org; Thu, 17 Nov 2022 21:16:47 +0000 Received: (Authenticated sender: miquel.raynal@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 8CC7E240007; Thu, 17 Nov 2022 21:16:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1668719804; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=8sSSAG02v9c1rix4dWFafQx0XJFdGQdS3+n8JraUS34=; b=gflZVOYyopBq8lAgrMnCclNfRx+jwt8Cb2LIX1DL/pT53PPG+ygs8wvF9kBQ4bG7d8YIv0 FkThP65GeDLc5gQ9dHcW1KkctjdV4UvQf18VY1LB+/DsS6HZjm/pELXVO5hLqPL7V6Xirl sgPwm9jwIwxYLdiEYX7Qw0272Wi8sHQk8LhdAOBVlDUwMg1NSEHHpzdrtHtX300SZy4m3s 8AIGRF7BVE+5VAu2uvEZiz5teo2rP73QMyjUHXSjZd26ETrdAbB3L8CaHmm47dU0qCUaMl RRi2pdVuGVzDHyOX9Qa0HI1BXXnO9pYCJFFeza0IMk0pPrRYN1TnM6lvHNY43Q== From: Miquel Raynal To: Hamish Martin , miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com Cc: chris.packham@alliedtelesis.co.nz, linux-mtd@lists.infradead.org Subject: Re: [PATCH] mtd: rawnand: marvell: Enable NFC/DEVBUS arbiter Date: Thu, 17 Nov 2022 22:16:42 +0100 Message-Id: <20221117211642.1273750-1-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221109231325.7714-1-hamish.martin@alliedtelesis.co.nz> References: MIME-Version: 1.0 X-linux-mtd-patch-notification: thanks X-linux-mtd-patch-commit: b'c13bf589e5cff0d05ce63c4832de3fab2a19c62d' X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221117_131645_948914_8CEC727D X-CRM114-Status: UNSURE ( 9.00 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org On Wed, 2022-11-09 at 23:13:25 UTC, Hamish Martin wrote: > The CN9130 SoC (an ARMADA 8K type) has both a NAND Flash Controller and > a generic local bus controller (Device Bus Controller) that share common > pins. > With a board design that incorporates both a NAND flash and uses > the Device Bus (in our case for an SRAM) accessing the Device Bus device > fails unless the NfArbiterEn bit is set. Setting the bit enables > arbitration between the Device Bus and the NAND flash. > Since there is no obvious downside in enabling this for designs that > don't require arbitration, we always enable it. > > Signed-off-by: Hamish Martin Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks. Miquel ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/