From 8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 15 Dec 2015 14:52:16 -0300 Subject: Linux-libre 4.3.2-gnu --- Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt') diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt index 211e7785f..dca56d624 100644 --- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt @@ -15,6 +15,7 @@ Required properties: "fsl,imx6q-usdhc" "fsl,imx6sl-usdhc" "fsl,imx6sx-usdhc" + "fsl,imx7d-usdhc" Optional properties: - fsl,wp-controller : Indicate to use controller internal write protection @@ -27,6 +28,11 @@ Optional properties: transparent level shifters on the outputs of the controller. Two cells are required, first cell specifies minimum slot voltage (mV), second cell specifies maximum slot voltage (mV). Several ranges could be specified. +- fsl,tuning-step: Specify the increasing delay cell steps in tuning procedure. + The uSDHC use one delay cell as default increasing step to do tuning process. + This property allows user to change the tuning step to more than one delay + cells which is useful for some special boards or cards when the default + tuning step can't find the proper delay window within limited tuning retries. Examples: -- cgit v1.2.3-54-g00ecf