From patchwork Wed Mar 12 18:07:41 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris BREZILLON X-Patchwork-Id: 3820191 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 5FEE09F2BB for ; Wed, 12 Mar 2014 18:15:56 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7DB6E2025B for ; Wed, 12 Mar 2014 18:15:55 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9458620163 for ; Wed, 12 Mar 2014 18:15:54 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WNnfS-0001Wi-NQ; Wed, 12 Mar 2014 18:14:15 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WNnaY-00069b-8R; Wed, 12 Mar 2014 18:09:10 +0000 Received: from bombadil.infradead.org ([2001:1868:205::9]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WNnZu-00065n-4M; Wed, 12 Mar 2014 18:08:30 +0000 Received: from mail-we0-f177.google.com ([74.125.82.177]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WNnZs-0006bC-Jt; Wed, 12 Mar 2014 18:08:29 +0000 Received: by mail-we0-f177.google.com with SMTP id u57so11428155wes.22 for ; Wed, 12 Mar 2014 11:08:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=J5rX0Ft7zwSxpRmFB1ltomQQkQ0QwTy8Lq6xr2Yanjs=; b=EgmHcx20EwRyWZ1fmDLTE5AqRgbKlWQRW5/PJVHAyGbCQnMZEpSr94rGoE0j2XY1LO 5rJh3euMk7rsApTUWeym/bTqtuyQm+5Y1zWtXNk9DeN1FMaqbRUk+w2jc7TxUq4bjfkh eDwsul72hApHn1M/AYad55h4lkdHLfPPSrfAuiLG7StmhyB2KJbie0IwVlaH6GbpVDhO w0XN6BX6crqQ4FK7wfFVteyiKELh6L9XolgP3Ws9NF+hkVG/3Wex46WbzKUyUw2DGyjh 0vyiIc3nuIk5rEUKA/+UyE+bR8ZUtma1m7Q2vQMrhvxt1uGmaCzV4J9tMZUODz2PcrLo g5AQ== X-Received: by 10.180.185.232 with SMTP id ff8mr8562700wic.25.1394647681641; Wed, 12 Mar 2014 11:08:01 -0700 (PDT) Received: from localhost.localdomain (col31-4-88-188-80-5.fbx.proxad.net. [88.188.80.5]) by mx.google.com with ESMTPSA id bj3sm71576119wjb.14.2014.03.12.11.07.59 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 12 Mar 2014 11:08:01 -0700 (PDT) From: Boris BREZILLON To: Maxime Ripard , Rob Herring , David Woodhouse , Grant Likely , Brian Norris , Jason Gunthorpe , Arnd Bergmann Subject: [PATCH v3 6/9] mtd: nand: add sunxi NFC dt bindings doc Date: Wed, 12 Mar 2014 19:07:41 +0100 Message-Id: <1394647664-8258-7-git-send-email-b.brezillon.dev@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1394647664-8258-1-git-send-email-b.brezillon.dev@gmail.com> References: <1394647664-8258-1-git-send-email-b.brezillon.dev@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140312_110828_818771_D0DEF35D X-CRM114-Status: UNSURE ( 9.96 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.8 (/) Cc: devicetree@vger.kernel.org, Boris BREZILLON , linux-doc@vger.kernel.org, dev@linux-sunxi.org, linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_MED, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add the sunxi NAND Flash Controller dt bindings documentation. Signed-off-by: Boris BREZILLON --- .../devicetree/bindings/mtd/sunxi-nand.txt | 48 ++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/sunxi-nand.txt diff --git a/Documentation/devicetree/bindings/mtd/sunxi-nand.txt b/Documentation/devicetree/bindings/mtd/sunxi-nand.txt new file mode 100644 index 0000000..4bf5b07 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/sunxi-nand.txt @@ -0,0 +1,48 @@ +Allwinner NAND Flash Controller (NFC) + +Required properties: +- compatible : "allwinner,sun4i-nand". +- reg : shall contain registers location and length for data and reg. +- interrupts : shall define the nand controller interrupt. +- #address-cells: shall be set to 1. Encode the nand CS. +- #size-cells : shall be set to 0. +- clocks : shall reference nand controller clocks. +- clock-names : nand controller internal clock names. Shall contain : + * "ahb_clk" : AHB gating clock + * "sclk" : nand controller clock + +Optional children nodes: +Children nodes represent the available nand chips. + +Optional properties: +- onfi,nand-timing-mode : mandatory if the chip does not support the ONFI + standard. +- allwinner,rb : shall contain the native Ready/Busy ids. + or +- rb-gpios : shall contain the gpios used as R/B pins. +- nand-ecc-mode : one of the supported ECC modes ("hw", "hw_syndrome", "soft", + "soft_bch" or "none") + +see Documentation/devicetree/mtd/nand.txt for generic bindings. + + +Examples: +nfc: nand@01c03000 { + compatible = "allwinner,sun4i-nand"; + reg = <0x01c03000 0x1000>; + interrupts = <0 37 1>; + clocks = <&ahb_gates 13>, <&nand_clk>; + clock-names = "ahb_clk", "sclk"; + #address-cells = <1>; + #size-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>; + status = "okay"; + + nand@0 { + reg = <0>; + allwinner,rb = <0>; + nand-ecc-mode = "soft_bch"; + onfi,nand-timing-mode = <4>; + }; +};