diff options
Diffstat (limited to 'Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml index dc6256f04b42..7f721fbfb009 100644 --- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml @@ -10,7 +10,7 @@ maintainers: - Shawn Guo <shawnguo@kernel.org> allOf: - - $ref: "mmc-controller.yaml" + - $ref: mmc-controller.yaml description: | The Enhanced Secure Digital Host Controller on Freescale i.MX family @@ -29,15 +29,24 @@ properties: - fsl,imx53-esdhc - fsl,imx6q-usdhc - fsl,imx6sl-usdhc - - fsl,imx6sll-usdhc - fsl,imx6sx-usdhc - - fsl,imx6ull-usdhc - fsl,imx7d-usdhc - fsl,imx7ulp-usdhc - fsl,imx8mm-usdhc - fsl,imxrt1050-usdhc - nxp,s32g2-usdhc - items: + - const: fsl,imx50-esdhc + - const: fsl,imx53-esdhc + - items: + - enum: + - fsl,imx6sll-usdhc + - fsl,imx6ull-usdhc + - const: fsl,imx6sx-usdhc + - items: + - const: fsl,imx7d-usdhc + - const: fsl,imx6sl-usdhc + - items: - enum: - fsl,imx8mq-usdhc - const: fsl,imx7d-usdhc @@ -98,12 +107,12 @@ properties: Specify the number of delay cells for override mode. This is used to set the clock delay for DLL(Delay Line) on override mode 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 + because the signal path is too long on the board. Please refer to eSDHC/uSDHC chapter, DLL (Delay Line) section in RM for details. default: 0 voltage-ranges: - $ref: '/schemas/types.yaml#/definitions/uint32-matrix' + $ref: /schemas/types.yaml#/definitions/uint32-matrix description: | Specify the voltage range in case there are software transparent level shifters on the outputs of the controller. Two cells are required, first @@ -127,7 +136,7 @@ properties: 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 + cell 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. default: 0 |