From patchwork Mon Aug 7 01:46:39 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Packham X-Patchwork-Id: 9884225 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 864AB603B4 for ; Mon, 7 Aug 2017 01:55:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7609C1FF83 for ; Mon, 7 Aug 2017 01:55:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 694D32855E; Mon, 7 Aug 2017 01:55:12 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 073501FF83 for ; Mon, 7 Aug 2017 01:55:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=hFrupgHvRv8tSCGU21AABTCYRpl8eulwG2v5in1bI0c=; b=P+LemkeTXaYteJ4VYCEIoGXCZl jUEBBLEV0687pmFUN7dJggLg5fMlF+g6gA4m5gHqXvAYqT3PvsEPEdEuYgatDkqy+zUjJhN2t+Zlr fA70rStlnqRUBnQydqujzp0allPthsFth9r0KVanrA6tB89DhPQXcHvpp7ALyesABYU0/DhyulsNH 3RPHcJcYnBIGupAm1yL5v2IthMjAc+tWwR0kdMGO4Ehtsk+OrhF9+r5ZhaeCM9htdfKwDFUf2uwhm PasmfFykGCWkL3B8kQW13iDk71ZsVpy9tdYlJqZWpZ+xJAqq9KbHiyMFW8+Xx+cAy2VoseYAykEL2 aJxWqRzg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1deXG7-0002Qe-QL; Mon, 07 Aug 2017 01:55:07 +0000 Received: from gate2.alliedtelesis.co.nz ([202.36.163.20]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1deXFo-00020J-FD for linux-arm-kernel@lists.infradead.org; Mon, 07 Aug 2017 01:54:50 +0000 Received: from mmarshal3.atlnz.lc (mmarshal3.atlnz.lc [10.32.18.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by gate2.alliedtelesis.co.nz (Postfix) with ESMTPS id A6EEE84482; Mon, 7 Aug 2017 13:46:50 +1200 (NZST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alliedtelesis.co.nz; s=mail; t=1502070410; bh=EwQm71dnDKWaZ5c8SeT2ii3F68dmoxwwgHphlEqsrkA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=gj/fa402N0jeHlv+gO5d0tHqRpN6aIU3BebRp77KLBIsG3bIeC0FG6mMiy3koj0nR 3QUIJpwizExdM0tJAthv9smpaMyjEtA5KyPZDmAXHFPPoRnCPj++9BlHZn75NBt0nw 0o2bVllJE/cAGTGPOQUB15YHbcvObXL2PAZ6n4wI= Received: from smtp (Not Verified[10.32.16.33]) by mmarshal3.atlnz.lc with Trustwave SEG (v7, 5, 8, 10121) id ; Mon, 07 Aug 2017 13:46:51 +1200 Received: from chrisp-dl.ws.atlnz.lc (chrisp-dl.ws.atlnz.lc [10.33.22.30]) by smtp (Postfix) with ESMTP id 6A19C13EF3B; Mon, 7 Aug 2017 13:46:53 +1200 (NZST) Received: by chrisp-dl.ws.atlnz.lc (Postfix, from userid 1030) id 88A561E1D59; Mon, 7 Aug 2017 13:46:45 +1200 (NZST) From: Chris Packham To: robh+dt@kernel.org, gregory.clement@free-electrons.com, bp@alien8.de, jlu@pengutronix.de, linux-arm-kernel@lists.infradead.org, linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RESEND PATCH 2/4] dt-bindings: add "reduced-width" property for Armada XP SDRAM controller Date: Mon, 7 Aug 2017 13:46:39 +1200 Message-Id: <20170807014641.4003-3-chris.packham@alliedtelesis.co.nz> X-Mailer: git-send-email 2.13.0 In-Reply-To: <20170807014641.4003-1-chris.packham@alliedtelesis.co.nz> References: <20170807014641.4003-1-chris.packham@alliedtelesis.co.nz> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170806_185448_689653_9B9408A8 X-CRM114-Status: UNSURE ( 6.66 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Chris Packham MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Some SoC implementations that use this controller have a reduced pin count so the meaning of "full" and "half" with change. Signed-off-by: Chris Packham --- .../bindings/memory-controllers/mvebu-sdram-controller.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/memory-controllers/mvebu-sdram-controller.txt b/Documentation/devicetree/bindings/memory-controllers/mvebu-sdram-controller.txt index 89657d1d4cd4..3041868321c8 100644 --- a/Documentation/devicetree/bindings/memory-controllers/mvebu-sdram-controller.txt +++ b/Documentation/devicetree/bindings/memory-controllers/mvebu-sdram-controller.txt @@ -13,6 +13,12 @@ Required properties: - reg: a resource specifier for the register space, which should include all SDRAM controller registers as per the datasheet. +Optional properties: + - marvell,reduced-width: some SoCs that use this SDRAM controller have + a reduced pin count. On such systems "full" width is 32-bits and + "half" width is 16-bits. Set this property to indicate that the SoC + used is such a system. + Example: sdramc@1400 {