[PATCH v9 2/3] dt-bindings: mmc: Add bindings for LiteSDCard
From: Gabriel Somlo <gsomlo@gmail.com>
Date: 2022-01-08 16:11:47
Also in:
linux-mmc, lkml
Subsystem:
litex platform, multimedia card (mmc), secure digital (sd) and sdio subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Karol Gugala, Mateusz Holenko, Gabriel Somlo, Joel Stanley, Ulf Hansson, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
LiteSDCard is a small footprint, configurable SDCard core for FPGA based SoCs. Signed-off-by: Gabriel Somlo <gsomlo@gmail.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Joel Stanley <joel@jms.id.au> --- .../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@gmail.com> + +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>; + };
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2.31.1