From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bayi Cheng Subject: [PATCH v4 1/3] doc: dt: add documentation for Mediatek spi-nor controller Date: Tue, 13 Oct 2015 17:39:18 +0800 Message-ID: <1444729160-26433-2-git-send-email-bayi.cheng@mediatek.com> References: <1444729160-26433-1-git-send-email-bayi.cheng@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1444729160-26433-1-git-send-email-bayi.cheng@mediatek.com> Sender: linux-kernel-owner@vger.kernel.org To: David Woodhouse , Brian Norris Cc: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Matthias Brugger , Daniel Kurtz , Sascha Hauer , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org, srv_heupstream@mediatek.com, Bayi Cheng List-Id: devicetree@vger.kernel.org Add device tree binding documentation for serial flash with Mediatek serial flash controller Signed-off-by: Bayi Cheng --- .../devicetree/bindings/mtd/mtk-quadspi.txt | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/mtk-quadspi.txt diff --git a/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt new file mode 100644 index 0000000..8fff0ed --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt @@ -0,0 +1,30 @@ +* MTD SPI nor driver for MTK MT81xx (and similar) serial flash controller + +Required properties: +- compatible: should be "mediatek,mt8173-nor"; +- reg: physical base address and length of the controller's register +- clocks: the phandle of the clock needed by the nor controller +- clock-names: the name of the clocks + the clocks needed "spi" and "sf". "spi" is used for spi bus, + and "sf" is used for controller, these are the clocks witch + hardware needs to enabling nor flash and nor flash controller. + See Documentation/devicetree/bindings/clock/clock-bindings.txt for details. +- #address-cells: should be <1> +- #size-cells: should be <0> + +Example: + +nor_flash: spi@1100d000 { + compatible = "mediatek,mt8173-nor"; + reg = <0 0x1100d000 0 0xe0>; + clocks = <&pericfg CLK_PERI_SPI>, + <&topckgen CLK_TOP_SPINFI_IFR_SEL>; + clock-names = "spi", "sf"; + #address-cells = <1>; + #size-cells = <0>; + + flash@0 { + .... + }; +}; + -- 1.8.1.1.dirty