LiteSDCard is a small footprint, configurable SDCard core for FPGA based system on chips. Signed-off-by: Gabriel Somlo <gsomlo@xxxxxxxxx> Reviewed-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> --- New in v4: - fixed `dt_binding_check` errors uncovered by Rob's script > New in v3: > - picked up r/b Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> in DT > bindings document (please let me know if that was premature, and > happy to take further review if needed :) > - add dedicated DT property for source clock frequency .../devicetree/bindings/mmc/litex,mmc.yaml | 72 +++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/litex,mmc.yaml diff --git a/Documentation/devicetree/bindings/mmc/litex,mmc.yaml b/Documentation/devicetree/bindings/mmc/litex,mmc.yaml new file mode 100644 index 000000000000..f57cf42b8db7 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/litex,mmc.yaml @@ -0,0 +1,72 @@ +# SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mmc/litex,mmc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: LiteX LiteSDCard device + +maintainers: + - Gabriel Somlo <gsomlo@xxxxxxxxx> + +description: | + LiteSDCard is a small footprint, configurable SDCard core for FPGA based + system on chips. + + The hardware source is Open Source and can be found on at + https://github.com/enjoy-digital/litesdcard/. + +allOf: + - $ref: mmc-controller.yaml# + +properties: + compatible: + const: litex,mmc + + reg: + items: + - description: PHY registers + - description: CORE registers + - description: DMA Reader buffer + - description: DMA Writer buffer + - description: IRQ registers + minItems: 4 + + reg-names: + items: + - const: phy + - const: core + - const: reader + - const: writer + - const: irq + minItems: 4 + + clocks: + maxItems: 1 + description: + Handle to reference clock. + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - reg-names + - clocks + +additionalProperties: false + +examples: + - | + mmc: mmc@12005000 { + compatible = "litex,mmc"; + reg = <0x12005000 0x100>, + <0x12003800 0x100>, + <0x12003000 0x100>, + <0x12004800 0x100>, + <0x12004000 0x100>; + reg-names = "phy", "core", "reader", "writer", "irq"; + clocks = <&reference_clk>; + interrupts = <4>; + }; -- 2.31.1
