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: 329607 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 51E0A2C00B5 for ; Thu, 13 Mar 2014 05:08:33 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755855AbaCLSIJ (ORCPT ); Wed, 12 Mar 2014 14:08:09 -0400 Received: from mail-we0-f179.google.com ([74.125.82.179]:48818 "EHLO mail-we0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756194AbaCLSIC (ORCPT ); Wed, 12 Mar 2014 14:08:02 -0400 Received: by mail-we0-f179.google.com with SMTP id x48so11625227wes.38 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 Cc: Boris BREZILLON , devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mtd@lists.infradead.org, dev@linux-sunxi.org 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> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org 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>; + }; +};