diff options
| author | Dong Aisheng <aisheng.dong@nxp.com> | 2016-07-12 03:46:16 -0400 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-07-25 04:34:55 -0400 |
| commit | 152f05c783438b57bb42e8171aa871c49ae5b2d5 (patch) | |
| tree | 05a8e6463849e3c1135e2fa0e68dece66a784ed3 | |
| parent | d87fc96636884430278bc3b425a5a6e2c071a377 (diff) | |
doc: dt: fsl-imx-esdhc: add set tuning start point binding
add tuning start point binding
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt index dca56d6248f5..3e29050ec769 100644 --- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt | |||
| @@ -28,6 +28,8 @@ Optional properties: | |||
| 28 | transparent level shifters on the outputs of the controller. Two cells are | 28 | transparent level shifters on the outputs of the controller. Two cells are |
| 29 | required, first cell specifies minimum slot voltage (mV), second cell | 29 | required, first cell specifies minimum slot voltage (mV), second cell |
| 30 | specifies maximum slot voltage (mV). Several ranges could be specified. | 30 | specifies maximum slot voltage (mV). Several ranges could be specified. |
| 31 | - fsl,tuning-start-tap: Specify the start dealy cell point when send first CMD19 | ||
| 32 | in tuning procedure. | ||
| 31 | - fsl,tuning-step: Specify the increasing delay cell steps in tuning procedure. | 33 | - fsl,tuning-step: Specify the increasing delay cell steps in tuning procedure. |
| 32 | The uSDHC use one delay cell as default increasing step to do tuning process. | 34 | The uSDHC use one delay cell as default increasing step to do tuning process. |
| 33 | This property allows user to change the tuning step to more than one delay | 35 | This property allows user to change the tuning step to more than one delay |