Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932079AbaAHO0c (ORCPT ); Wed, 8 Jan 2014 09:26:32 -0500 Received: from 20.mo3.mail-out.ovh.net ([178.33.47.94]:38863 "EHLO mo3.mail-out.ovh.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755890AbaAHO0Z (ORCPT ); Wed, 8 Jan 2014 09:26:25 -0500 From: Boris BREZILLON To: Maxime Ripard , Rob Landley , Russell King , David Woodhouse , Grant Likely Cc: 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, Boris BREZILLON Subject: [RFC PATCH 6/9] mtd: nand: add sunxi NFC dt bindings doc Date: Wed, 8 Jan 2014 15:22:01 +0100 Message-Id: <1389190924-26226-7-git-send-email-b.brezillon@overkiz.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1389190924-26226-1-git-send-email-b.brezillon@overkiz.com> References: <1389190924-26226-1-git-send-email-b.brezillon@overkiz.com> X-Ovh-Tracer-Id: 6922595577740294339 X-Ovh-Remote: 80.245.18.66 () X-Ovh-Local: 213.186.33.20 (ns0.ovh.net) X-OVH-SPAMSTATE: OK X-OVH-SPAMSCORE: -100 X-OVH-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeejtddrfedtucetufdoteggodetrfcurfhrohhfihhlvgemucfqggfjnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd X-Spam-Check: DONE|U 0.5/N X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeejtddrfedtucetufdoteggodetrfcurfhrohhfihhlvgemucfqggfjnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd 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 | 71 ++++++++++++++++++++ 1 file changed, 71 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..c3206fc --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/sunxi-nand.txt @@ -0,0 +1,71 @@ +Allwinner NAND Flash Controller (NFC) + +Required properties: +- compatible : "allwinner,sun4i-nfc". +- reg : shall contain registers location and length for data and reg. +- interrupts : shall define the NFC interrupt. +- #address-cells: shall be set to 1. Encode the nand CS. +- #size-cells : shall be set to 0. +- clocks : shall reference NFC clocks. +- clock-names : NFC internal clock names. Shall contain : + * "ahb_clk" : AHB gating clock + * "sclk" : NFC clock + +Optional children nodes: +Children nodes represent the available nand chips. + +Required properties: +- reg : shall contain the CS ids (a given chip might use several CS) +- tCLS-min : see Documentation/devicetree/mtd/nand.txt +- tCLH-min : Documentation/devicetree/mtd/nand.txt +- tCS-min : see Documentation/devicetree/mtd/nand.txt +- tCH-min : see Documentation/devicetree/mtd/nand.txt +- tWP-min : see Documentation/devicetree/mtd/nand.txt +- tWH-min : see Documentation/devicetree/mtd/nand.txt +- tALS-min : see Documentation/devicetree/mtd/nand.txt +- tDS-min : see Documentation/devicetree/mtd/nand.txt +- tDH-min : see Documentation/devicetree/mtd/nand.txt +- tRR-min : see Documentation/devicetree/mtd/nand.txt +- tALH-min : see Documentation/devicetree/mtd/nand.txt +- tRP-min : see Documentation/devicetree/mtd/nand.txt +- tREH-min : see Documentation/devicetree/mtd/nand.txt +- tRC-min : see Documentation/devicetree/mtd/nand.txt +- tWC-min : see Documentation/devicetree/mtd/nand.txt + +Optional properties: +- allwinner,rb : shall contain the native Ready/Busy ids. + or +- rb-gpios : shall contain the gpios used as R/B pins. + +see Documentation/devicetree/mtd/nand.txt for generic bindings. + + +Examples: +nfc: nand@01c03000 { + 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"; + + /* nand timings */ + tCLS-min = <6>; + tCLH-min = <3>; + tCS-min = <20>; + tCH-min = <5>; + tWP-min = <8>; + tWH-min = <6>; + tALS-min = <6>; + tDS-min = <6>; + tDH-min = <2>; + tRR-min = <20>; + tALH-min = <3>; + tRP-min = <8>; + tREH-min = <6>; + tRC-min = <16>; + tWC-min = <16>; + }; +}; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/