xref: /linux/Documentation/devicetree/bindings/mmc/fsl,esdhc.yaml (revision c94cd9508b1335b949fd13ebd269313c65492df0) 
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,ls1028a-esdhc
28          - fsl,ls1088a-esdhc
29          - fsl,ls1043a-esdhc
30          - fsl,ls1046a-esdhc
31          - fsl,ls2080a-esdhc
32      - const: fsl,esdhc
33
34  reg:
35    maxItems: 1
36
37  interrupts:
38    maxItems: 1
39
40  clocks:
41    maxItems: 1
42
43  clock-frequency:
44    $ref: /schemas/types.yaml#/definitions/uint32
45    description: specifies eSDHC base clock frequency.
46
47  sdhci,wp-inverted:
48    $ref: /schemas/types.yaml#/definitions/flag
49    deprecated: true
50    description:
51      specifies that eSDHC controller reports
52      inverted write-protect state; New devices should use the generic
53      "wp-inverted" property.
54
55  sdhci,1-bit-only:
56    $ref: /schemas/types.yaml#/definitions/flag
57    deprecated: true
58    description:
59      specifies that a controller can only handle
60      1-bit data transfers. New devices should use the generic
61      "bus-width = <1>" property.
62
63  sdhci,auto-cmd12:
64    $ref: /schemas/types.yaml#/definitions/flag
65    description:
66      specifies that a controller can only handle auto CMD12.
67
68  voltage-ranges:
69    $ref: /schemas/types.yaml#/definitions/uint32-matrix
70    items:
71      items:
72        - description: specifies minimum slot voltage (mV).
73        - description: specifies maximum slot voltage (mV).
74    minItems: 1
75    maxItems: 8
76
77  dma-coherent: true
78
79  little-endian:
80    $ref: /schemas/types.yaml#/definitions/flag
81    description:
82      If the host controller is little-endian mode, specify
83      this property. The default endian mode is big-endian.
84
85required:
86  - compatible
87  - reg
88  - interrupts
89
90allOf:
91  - $ref: sdhci-common.yaml#
92
93unevaluatedProperties: false
94
95examples:
96  - |
97    mmc@2e000 {
98        compatible = "fsl,mpc8378-esdhc", "fsl,esdhc";
99        reg = <0x2e000 0x1000>;
100        interrupts = <42 0x8>;
101        interrupt-parent = <&ipic>;
102        /* Filled in by U-Boot */
103        clock-frequency = <100000000>;
104        voltage-ranges = <3300 3300>;
105    };
106