| Message ID | 1446824889-16144-2-git-send-email-bayi.cheng@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, Nov 06, 2015 at 11:48:07PM +0800, Bayi Cheng wrote: > Add device tree binding documentation for serial flash with > Mediatek serial flash controller > > Signed-off-by: Bayi Cheng <bayi.cheng@mediatek.com> Acked-by: Rob Herring <robh@kernel.org> > --- > .../devicetree/bindings/mtd/mtk-quadspi.txt | 41 ++++++++++++++++++++++ > 1 file changed, 41 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..866b492 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt > @@ -0,0 +1,41 @@ > +* 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> > + > +The SPI Flash must be a child of the nor_flash node and must have a > +compatible property. > + > +Required properties: > +- compatible: May include a device-specific string consisting of the manufacturer > + and name of the chip. Must also include "jedec,spi-nor" for any > + SPI NOR flash that can be identified by the JEDEC READ ID opcode (0x9F). > +- reg : Chip-Select number > + > +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>; > + status = "disabled"; > + > + flash@0 { > + compatible = "jedec,spi-nor"; > + reg = <0>; > + }; > +}; > + > -- > 1.8.1.1.dirty >
diff --git a/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt new file mode 100644 index 0000000..866b492 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt @@ -0,0 +1,41 @@ +* 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> + +The SPI Flash must be a child of the nor_flash node and must have a +compatible property. + +Required properties: +- compatible: May include a device-specific string consisting of the manufacturer + and name of the chip. Must also include "jedec,spi-nor" for any + SPI NOR flash that can be identified by the JEDEC READ ID opcode (0x9F). +- reg : Chip-Select number + +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>; + status = "disabled"; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + }; +}; +
Add device tree binding documentation for serial flash with Mediatek serial flash controller Signed-off-by: Bayi Cheng <bayi.cheng@mediatek.com> --- .../devicetree/bindings/mtd/mtk-quadspi.txt | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/mtk-quadspi.txt