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-rw-r--r--Documentation/devicetree/bindings/mmc/mmci.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/mmci.txt b/Documentation/devicetree/bindings/mmc/mmci.txt
index 6d3c626e017d..4ec921e4bf34 100644
--- a/Documentation/devicetree/bindings/mmc/mmci.txt
+++ b/Documentation/devicetree/bindings/mmc/mmci.txt
@@ -28,6 +28,8 @@ specific for ux500 variant:
- st,sig-pin-fbclk : feedback clock signal pin used.
specific for sdmmc variant:
+- reg : a second base register may be defined if a delay
+ block is present and used for tuning.
- st,sig-dir : signal direction polarity used for cmd, dat0 dat123.
- st,neg-edge : data & command phase relation, generated on
sd clock falling edge.