On Tue, Oct 08, 2024 at 01:23:05PM +1300, Chris Packham wrote: > Add a dtschema for the SPI-NAND controller on the RTL9300 SoCs. The > controller supports > * Serial/Dual/Quad data with > * PIO and DMA data read/write operation > * Configurable flash access timing > > Signed-off-by: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx> > --- > > Notes: > Changes in v2: > - Add clocks > - For now I've kept realtek,rtl9300-snand to identify the IP block used > in the various rtl930x chips. If the consensus is to drop this I can > send a v3 with an updated driver to add the chip specific complatibles. > > .../bindings/spi/realtek,rtl9300-snand.yaml | 69 +++++++++++++++++++ > 1 file changed, 69 insertions(+) > create mode 100644 Documentation/devicetree/bindings/spi/realtek,rtl9300-snand.yaml > > diff --git a/Documentation/devicetree/bindings/spi/realtek,rtl9300-snand.yaml b/Documentation/devicetree/bindings/spi/realtek,rtl9300-snand.yaml > new file mode 100644 > index 000000000000..2d01464e85e5 > --- /dev/null > +++ b/Documentation/devicetree/bindings/spi/realtek,rtl9300-snand.yaml > @@ -0,0 +1,69 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/spi/realtek,rtl9300-snand.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: SPI-NAND Flash Controller for Realtek RTL9300 SoCs > + > +maintainers: > + - Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx> > + > +description: > + The Realtek RTL9300 SoCs have a built in SPI-NAND controller. It supports > + typical SPI-NAND page cache operations in single, dual or quad IO mode. > + > +properties: > + compatible: > + items: > + - enum: > + - realtek,rtl9301-snand > + - realtek,rtl9302b-snand > + - realtek,rtl9302c-snand > + - realtek,rtl9303-snand > + - const: realtek,rtl9300-snand > + > + reg: > + items: > + - description: SPI NAND controller registers address and size Just 'maxItems: 1'. The description is fairly obvious. > + > + interrupts: > + items: > + - description: SPI NAND controller interrupt Same here. > + > + clocks: > + items: > + - description: SPI NAND controller reference clock And here. > + > + clock-names: > + items: > + - const: spi > + > +required: > + - compatible > + - reg > + - interrupts > + - clocks > + > +allOf: > + - $ref: /schemas/spi/spi-controller.yaml# > + > +unevaluatedProperties: false > + > +examples: > + - | > + spi@1a400 { > + compatible = "realtek,rtl9302c-snand", "realtek,rtl9300-snand"; > + reg = <0x1a400 0x44>; > + interrupt-parent = <&intc>; > + interrupts = <19>; > + clocks = <&lx_clk>; > + clock-names = "spi"; > + #address-cells = <1>; > + #size-cells = <0>; > + > + flash@0 { > + compatible = "spi-nand"; > + reg = <0>; > + }; > + }; > -- > 2.46.2 >
