This patch documents the Xenon SDHCI controller that we can find in the
Armada 37xx and the Armada 7K and 8K SoCs.
Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
---
.../devicetree/bindings/mmc/sdhci-xenon.txt | 27 ++++++++++++++++++++++
1 file changed, 27 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-xenon.txt
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-xenon.txt b/Documentation/devicetree/bindings/mmc/sdhci-xenon.txt
new file mode 100644
index 000000000000..e8d49fda5f12
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/sdhci-xenon.txt
@@ -0,0 +1,27 @@
+* Marvell sdhci-xenon controller
+
+This file documents differences between the core properties in mmc.txt
+and the properties used by the sdhci-xenon drivers.
+
+Required properties:
+- compatible: Should be "marvell,xenon-sdhci".
+- reg:
+ one register area for the SDHCI registers.
+- interrupts-extended: interrupt number and attributes
+- clocks: array of clocks required for SDHCI.
+- bus-width: max bus width in unit of bit, normally should be 1 bit, 4 bits or 8 bits
+
+Optional properties:
+- non-removable: whether card is non-removable.
+- auto-cmd12: whether cmd12 is sent automatically.
+Example:
+
+sdhci0: sdhci@D8000 {
+ compatible = "marvell,xenon-sdhci";
+ reg = <0xD8000 0x300>;
+ interrupts-extended = <&gic GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
+ non-removable;
+ bus-width = <8>;
+ auto-cmd12;
+ status = "disabled";
+};
--
2.5.0
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