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Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt index 9046ba06c47a..aa470163902c 100644 --- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt @@ -17,6 +17,8 @@ Optional properties: to select a proper data sampling window in case the clock quality is not good due to signal path is too long on the board. Please refer to eSDHC/uSDHC chapter, DLL (Delay Line) section in RM for details. +- tuning-step : The delay cell steps in tuning procedure. + Some boards need to set the tuning-step to make sure it can pass tuning procedure. Examples: @@ -26,6 +28,7 @@ esdhc@70004000 { interrupts = <1>; fsl,cd-controller; fsl,wp-controller; + tuning-step = <2>; }; esdhc@70008000 { |