mmc: pxa-mci: add DT bindings

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/mmc/pxa-mmc.txt b/Documentation/devicetree/bindings/mmc/pxa-mmc.txt
new file mode 100644
index 000000000000..b7025de7dced
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/pxa-mmc.txt
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+* PXA MMC drivers
+
+Driver bindings for the PXA MCI (MMC/SDIO) interfaces
+
+Required properties:
+- compatible: Should be "marvell,pxa-mmc".
+- vmmc-supply: A regulator for VMMC
+
+Optional properties:
+- marvell,detect-delay-ms: sets the detection delay timeout in ms.
+- marvell,gpio-power: GPIO spec for the card power enable pin
+
+This file documents differences between the core properties in mmc.txt
+and the properties used by the pxa-mmc driver.
+
+Examples:
+
+mmc0: mmc@41100000 {
+        compatible = "marvell,pxa-mmc";
+        reg = <0x41100000 0x1000>;
+        interrupts = <23>;
+        cd-gpios = <&gpio 23 0>;
+        wp-gpios = <&gpio 24 0>;
+};
+