xref: /linux/Documentation/devicetree/bindings/mmc/fsl,esdhc.yaml (revision e7e86d7697c6ed1dbbde18d7185c35b6967945ed) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mmc/fsl,esdhc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale Enhanced Secure Digital Host Controller (eSDHC)
8
9description:
10  The Enhanced Secure Digital Host Controller provides an interface
11  for MMC, SD, and SDIO types of memory cards.
12
13maintainers:
14  - Frank Li <Frank.Li@nxp.com>
15
16properties:
17  compatible:
18    items:
19      - enum:
20          - fsl,mpc8536-esdhc
21          - fsl,mpc8378-esdhc
22          - fsl,p2020-esdhc
23          - fsl,p4080-esdhc
24          - fsl,t1040-esdhc
25          - fsl,t4240-esdhc
26          - fsl,ls1012a-esdhc
27          - fsl,ls1021a-esdhc
28          - fsl,ls1028a-esdhc
29          - fsl,ls1088a-esdhc
30          - fsl,ls1043a-esdhc
31          - fsl,ls1046a-esdhc
32          - fsl,ls2080a-esdhc
33      - const: fsl,esdhc
34
35  reg:
36    maxItems: 1
37
38  interrupts:
39    maxItems: 1
40
41  clocks:
42    maxItems: 1
43
44  clock-frequency:
45    $ref: /schemas/types.yaml#/definitions/uint32
46    description: specifies eSDHC base clock frequency.
47
48  sdhci,wp-inverted:
49    $ref: /schemas/types.yaml#/definitions/flag
50    deprecated: true
51    description:
52      specifies that eSDHC controller reports
53      inverted write-protect state; New devices should use the generic
54      "wp-inverted" property.
55
56  sdhci,1-bit-only:
57    $ref: /schemas/types.yaml#/definitions/flag
58    deprecated: true
59    description:
60      specifies that a controller can only handle
61      1-bit data transfers. New devices should use the generic
62      "bus-width = <1>" property.
63
64  sdhci,auto-cmd12:
65    $ref: /schemas/types.yaml#/definitions/flag
66    description:
67      specifies that a controller can only handle auto CMD12.
68
69  voltage-ranges:
70    $ref: /schemas/types.yaml#/definitions/uint32-matrix
71    items:
72      items:
73        - description: specifies minimum slot voltage (mV).
74        - description: specifies maximum slot voltage (mV).
75    minItems: 1
76    maxItems: 8
77
78  dma-coherent: true
79
80  little-endian:
81    $ref: /schemas/types.yaml#/definitions/flag
82    description:
83      If the host controller is little-endian mode, specify
84      this property. The default endian mode is big-endian.
85
86required:
87  - compatible
88  - reg
89  - interrupts
90
91allOf:
92  - $ref: sdhci-common.yaml#
93
94unevaluatedProperties: false
95
96examples:
97  - |
98    mmc@2e000 {
99        compatible = "fsl,mpc8378-esdhc", "fsl,esdhc";
100        reg = <0x2e000 0x1000>;
101        interrupts = <42 0x8>;
102        interrupt-parent = <&ipic>;
103        /* Filled in by U-Boot */
104        clock-frequency = <100000000>;
105        voltage-ranges = <3300 3300>;
106    };
107