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 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..9b8d4ec30375
--- /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 (optional)
+ minItems: 4
+ maxItems: 5
+
+ reg-names:
+ items:
+ - const: phy
+ - const: core
+ - const: reader
+ - const: writer
+ - const: irq (optional)
+ minItems: 4
+ maxItems: 5
+
+ clocks:
+ maxItems: 1
+
+ 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
