Add device tree binding documentation for serial flash with Mediatek serial flash controller Signed-off-by: Bayi Cheng <bayi.cheng@xxxxxxxxxxxx> --- Documentation/devicetree/bindings/mtd/mtk_nor.txt | 25 +++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/mtk_nor.txt diff --git a/Documentation/devicetree/bindings/mtd/mtk_nor.txt b/Documentation/devicetree/bindings/mtd/mtk_nor.txt new file mode 100644 index 0000000..0eca0cd --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/mtk_nor.txt @@ -0,0 +1,25 @@ +* MTD SPI nor driver for MTK MT81xx (and similar) serial flash controller + +MTK MT81xx serial flash controller is designed for serial Flash device. +It supports one Flash device with signal mode, dual mode and quad mode. + +Required properties: +- compatible: should be "mediatek,mt8173-nor"; +- reg: physical base address and length of the controller's register +- clocks: spi nor source clock +- clock-names: "spi_clk", "axi_clk", "mux_clk", "sf_clk" + +See Documentation/devicetree/bindings/clock/clock-bindings.txt +and Documentation/mtd/spi-nor.txt for details. + +Example: +nor_flash: nor@1100d000 { + compatible = "mediatek,mt8173-nor"; + reg = <0 0x1100d000 0 0xe0>; + clocks = <&pericfg CLK_PERI_SPI>, + <&topckgen CLK_TOP_AXI_SEL>, + <&topckgen CLK_TOP_UNIVPLL2_D8>, + <&topckgen CLK_TOP_SPINFI_IFR_SEL>; + clock-names = "spi_clk", "axi_clk", "mux_clk", "sf_clk"; +}; + -- 1.8.1.1.dirty -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html