bindings/mmc/fsl-imx-esdhc.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mmc/fsl-imx-esdhc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Shawn Guo <shawnguo@kernel.org>
13   - $ref: "mmc-controller.yaml"
20   by mmc.txt and the properties used by the sdhci-esdhc-imx driver.
25       - enum:
26           - fsl,imx25-esdhc
27           - fsl,imx35-esdhc
28           - fsl,imx51-esdhc
29           - fsl,imx53-esdhc
30           - fsl,imx6q-usdhc
31           - fsl,imx6sl-usdhc
32           - fsl,imx6sx-usdhc
33           - fsl,imx6ull-usdhc
34           - fsl,imx7d-usdhc
35           - fsl,imx7ulp-usdhc
36       - items:
37           - enum:
38               - fsl,imx8mm-usdhc
39               - fsl,imx8mn-usdhc
40               - fsl,imx8mp-usdhc
41               - fsl,imx8mq-usdhc
42               - fsl,imx8qxp-usdhc
43           - const: fsl,imx7d-usdhc
51   fsl,wp-controller:
56   fsl,delay-line:
59       Specify the number of delay cells for override mode.
60       This is used to set the clock delay for DLL(Delay Line) on override mode
63       chapter, DLL (Delay Line) section in RM for details.
66   voltage-ranges:
67     $ref: '/schemas/types.yaml#/definitions/uint32-matrix'
75         - description: value for minimum slot voltage
76         - description: value for maximum slot voltage
79   fsl,tuning-start-tap:
82       Specify the start delay cell point when send first CMD19 in tuning procedure.
85   fsl,tuning-step:
88       Specify the increasing delay cell steps in tuning procedure.
89       The uSDHC use one delay cell as default increasing step to do tuning process.
90       This property allows user to change the tuning step to more than one delay
92       tuning step can't find the proper delay window within limited tuning retries.
95   fsl,strobe-dll-delay-target:
98       Specify the strobe dll control slave delay target.
99       This delay target programming host controller loopback read clock, and this
100       property allows user to change the delay target for the strobe input read clock.
101       If not use this property, driver default set the delay target to value 7.
106   - compatible
107   - reg
108   - interrupts
113   - |
115         compatible = "fsl,imx51-esdhc";
118         fsl,wp-controller;
122         compatible = "fsl,imx51-esdhc";
125         cd-gpios = <&gpio1 6 0>; /* GPIO1_6 */
126         wp-gpios = <&gpio1 5 0>; /* GPIO1_5 */