From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932592AbaJUNJD (ORCPT ); Tue, 21 Oct 2014 09:09:03 -0400 Received: from down.free-electrons.com ([37.187.137.238]:57948 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932477AbaJUNIt (ORCPT ); Tue, 21 Oct 2014 09:08:49 -0400 From: Boris Brezillon To: David Woodhouse , Brian Norris , linux-mtd@lists.infradead.org Cc: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , devicetree@vger.kernel.org, linux-sunxi@googlegroups.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Yassin Jaffer , Boris Brezillon Subject: [PATCH v7 2/2] mtd: nand: add sunxi NFC dt bindings doc Date: Tue, 21 Oct 2014 15:08:42 +0200 Message-Id: <1413896922-11680-3-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1413896922-11680-1-git-send-email-boris.brezillon@free-electrons.com> References: <1413896922-11680-1-git-send-email-boris.brezillon@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add the sunxi NAND Flash Controller dt bindings documentation. Signed-off-by: Boris Brezillon --- .../devicetree/bindings/mtd/sunxi-nand.txt | 45 ++++++++++++++++++++++ 1 file changed, 45 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..0273adb --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/sunxi-nand.txt @@ -0,0 +1,45 @@ +Allwinner NAND Flash Controller (NFC) + +Required properties: +- compatible : "allwinner,sun4i-a10-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" : AHB gating clock + * "mod" : nand controller clock + +Optional children nodes: +Children nodes represent the available nand chips. + +Optional properties: +- 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-a10-nand"; + reg = <0x01c03000 0x1000>; + interrupts = <0 37 1>; + clocks = <&ahb_gates 13>, <&nand_clk>; + clock-names = "ahb", "mod"; + #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"; + }; +}; -- 1.9.1