| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/mmc/socionext,uniphier-sd.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: UniPhier SD/SDIO/eMMC controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Masahiro Yamada <yamada.masahiro@socionext.com> |
| 11 | |
| 12 | properties: |
| 13 | compatible: |
| 14 | description: version 2.91, 3.1, 3.1.1, respectively |
| 15 | enum: |
| 16 | - socionext,uniphier-sd-v2.91 |
| 17 | - socionext,uniphier-sd-v3.1 |
| 18 | - socionext,uniphier-sd-v3.1.1 |
| 19 | |
| 20 | reg: |
| 21 | maxItems: 1 |
| 22 | |
| 23 | interrupts: |
| 24 | maxItems: 1 |
| 25 | |
| 26 | clocks: |
| 27 | maxItems: 1 |
| 28 | |
| 29 | dmas: |
| 30 | maxItems: 1 |
| 31 | |
| 32 | dma-names: |
| 33 | const: rx-tx |
| 34 | |
| 35 | reset-names: |
| 36 | description: | |
| 37 | There are three reset signals at maximum |
| 38 | host: mandatory for all variants |
| 39 | bridge: exist only for version 2.91 |
| 40 | hw: optional. exist if eMMC hw reset line is available |
| 41 | oneOf: |
| 42 | - const: host |
| 43 | - items: |
| 44 | - const: host |
| 45 | - const: bridge |
| 46 | - items: |
| 47 | - const: host |
| 48 | - const: hw |
| 49 | - items: |
| 50 | - const: host |
| 51 | - const: bridge |
| 52 | - const: hw |
| 53 | |
| 54 | resets: |
| 55 | minItems: 1 |
| 56 | maxItems: 3 |
| 57 | |
| 58 | socionext,syscon-uhs-mode: |
| 59 | $ref: /schemas/types.yaml#/definitions/phandle-array |
| 60 | items: |
| 61 | - items: |
| 62 | - description: phandle to syscon that configures UHS mode |
| 63 | - description: ID of SD instance |
| 64 | description: |
| 65 | A phandle to syscon with one argument that configures UHS mode. |
| 66 | The argument is the ID of SD instance. |
| 67 | |
| 68 | allOf: |
| 69 | - $ref: mmc-controller.yaml |
| 70 | |
| 71 | - if: |
| 72 | properties: |
| 73 | compatible: |
| 74 | contains: |
| 75 | const: socionext,uniphier-sd-v2.91 |
| 76 | then: |
| 77 | properties: |
| 78 | reset-names: |
| 79 | contains: |
| 80 | const: bridge |
| 81 | else: |
| 82 | properties: |
| 83 | reset-names: |
| 84 | not: |
| 85 | contains: |
| 86 | const: bridge |
| 87 | |
| 88 | required: |
| 89 | - compatible |
| 90 | - reg |
| 91 | - interrupts |
| 92 | - clocks |
| 93 | - reset-names |
| 94 | - resets |
| 95 | |
| 96 | unevaluatedProperties: false |
| 97 | |
| 98 | examples: |
| 99 | - | |
| 100 | sd: mmc@5a400000 { |
| 101 | compatible = "socionext,uniphier-sd-v2.91"; |
| 102 | reg = <0x5a400000 0x200>; |
| 103 | interrupts = <0 76 4>; |
| 104 | pinctrl-names = "default", "uhs"; |
| 105 | pinctrl-0 = <&pinctrl_sd>; |
| 106 | pinctrl-1 = <&pinctrl_sd_uhs>; |
| 107 | clocks = <&mio_clk 0>; |
| 108 | reset-names = "host", "bridge"; |
| 109 | resets = <&mio_rst 0>, <&mio_rst 3>; |
| 110 | dma-names = "rx-tx"; |
| 111 | dmas = <&dmac 4>; |
| 112 | bus-width = <4>; |
| 113 | cap-sd-highspeed; |
| 114 | sd-uhs-sdr12; |
| 115 | sd-uhs-sdr25; |
| 116 | sd-uhs-sdr50; |
| 117 | }; |