Re: [PATCH v2 1/3] doc: dt: add documentation for Mediatek spi-nor controller
From: Rob Herring <robh@kernel.org>
Date: 2015-09-21 18:53:45
Also in:
linux-arm-kernel, linux-devicetree, lkml
On 09/18/2015 01:58 AM, Bayi Cheng wrote:
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Add device tree binding documentation for serial flash with Mediatek serial flash controller Signed-off-by: Bayi Cheng <redacted> --- .../devicetree/bindings/mtd/mtk_quadspi.txt | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/mtk_quadspi.txtdiff --git a/Documentation/devicetree/bindings/mtd/mtk_quadspi.txt b/Documentation/devicetree/bindings/mtd/mtk_quadspi.txt new file mode 100644 index 0000000..380b907 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/mtk_quadspi.txt@@ -0,0 +1,27 @@ +* 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 QuadSPI controller
QuadSPI? Please document number of clocks and their use/function.
+- clock-names: the name of the clocks
+ 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 {
+ ....
+ };
+};
+