1 # SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/mmc/litex,mmc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: LiteX LiteSDCard device
8
9 maintainers:
10 - Gabriel Somlo <gsomlo@gmail.com>
11
12 description: |
13 LiteSDCard is a small footprint, configurable SDCard core for FPGA based
14 system on chips.
15
16 The hardware source is Open Source and can be found on at
17 https://github.com/enjoy-digital/litesdcard/.
18
19 allOf:
20 - $ref: mmc-controller.yaml#
21
22 properties:
23 compatible:
24 const: litex,mmc
25
26 reg:
27 items:
28 - description: PHY registers
29 - description: CORE registers
30 - description: DMA Reader buffer
31 - description: DMA Writer buffer
32 - description: IRQ registers
33 minItems: 4
34
35 reg-names:
36 items:
37 - const: phy
38 - const: core
39 - const: reader
40 - const: writer
41 - const: irq
42 minItems: 4
43
44 clocks:
45 maxItems: 1
46 description:
47 Handle to reference clock.
48
49 vmmc-supply:
50 description:
51 Handle to fixed-voltage supply for the card power.
52
53 interrupts:
54 maxItems: 1
55
56 required:
57 - compatible
58 - reg
59 - reg-names
60 - clocks
61 - vmmc-supply
62
63 additionalProperties: false
64
65 examples:
66 - |
67 mmc: mmc@12005000 {
68 compatible = "litex,mmc";
69 reg = <0x12005000 0x100>,
70 <0x12003800 0x100>,
71 <0x12003000 0x100>,
72 <0x12004800 0x100>,
73 <0x12004000 0x100>;
74 reg-names = "phy", "core", "reader", "writer", "irq";
75 clocks = <&reference_clk>;
76 vmmc-supply = <&vreg_mmc>;
77 interrupts = <4>;
78 };
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