From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Agner Subject: [PATCH 3/5] mtd: nand: vf610_nfc: add device tree bindings Date: Thu, 5 Mar 2015 00:10:22 +0100 Message-ID: <1425510624-22250-4-git-send-email-stefan@agner.ch> References: <1425510624-22250-1-git-send-email-stefan@agner.ch> Return-path: In-Reply-To: <1425510624-22250-1-git-send-email-stefan@agner.ch> Sender: linux-kernel-owner@vger.kernel.org To: dwmw2@infradead.org, computersforpeace@gmail.com Cc: robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, shawn.guo@linaro.org, kernel@pengutronix.de, boris.brezillon@free-electrons.com, marb@ixxat.de, aaron@tastycactus.com, bpringlemeir@nbsps.com, linux-mtd@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Stefan Agner List-Id: devicetree@vger.kernel.org Signed-off-by: Bill Pringlemeir Signed-off-by: Stefan Agner --- .../devicetree/bindings/mtd/vf610-nfc.txt | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/vf610-nfc.txt diff --git a/Documentation/devicetree/bindings/mtd/vf610-nfc.txt b/Documentation/devicetree/bindings/mtd/vf610-nfc.txt new file mode 100644 index 0000000..54207f8 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/vf610-nfc.txt @@ -0,0 +1,38 @@ +Freescale's NAND flash controller (NFC) + +This variant of the Freescale NAND flash controller (NFC) is on Vybrid (vf610), +MPC5125, MCF54418 and Kinetis K70. + +Required properties: +- compatible: "fsl,vf610-nfc" +- reg: Address range of the mtd chip +- interrupts: Should contain the STMMAC interrupts +- nand-bus-width: see nand.txt +- nand-ecc-mode: see nand.txt +- nand-on-flash-bbt: see nand.txt +- clock-frequency : Optional clock rate to NFC in Hz +- #address-cells, #size-cells : Must be present if the device has sub-nodes + representing partitions. + +Required properties for hardware ECC: +- nand-ecc-strength: supported strengths are 24 and 32 (see nand.txt) +- nand-ecc-step-size: step size equals page size, currently only 2k pages are + supported + +Example: + + nfc: nand@400e0000 { + compatible = "fsl,vf610-nfc"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x400e0000 0x4000>; + interrupts = ; + clocks = <&clks VF610_CLK_NFC>; + clock-names = "nfc"; + clock-frequency = <33000000>; + nand-bus-width = <8>; + nand-ecc-mode = "hw"; + nand-on-flash-bbt; + nand-ecc-strength = <32>; + nand-ecc-step-size = <2048>; + }; -- 2.3.0