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[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 (/) X-Spam-Report: SpamAssassin version 3.3.2 on bombadil.infradead.org summary: Content analysis details: (-0.8 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (b.brezillon.dev[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [74.125.82.177 listed in list.dnswl.org] -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 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-mtd@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.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>; + }; +};