0001 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/mmc/socionext,uniphier-sd.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: UniPhier SD/SDIO/eMMC controller
0008
0009 maintainers:
0010 - Masahiro Yamada <yamada.masahiro@socionext.com>
0011
0012 properties:
0013 compatible:
0014 description: version 2.91, 3.1, 3.1.1, respectively
0015 enum:
0016 - socionext,uniphier-sd-v2.91
0017 - socionext,uniphier-sd-v3.1
0018 - socionext,uniphier-sd-v3.1.1
0019
0020 reg:
0021 maxItems: 1
0022
0023 interrupts:
0024 maxItems: 1
0025
0026 clocks:
0027 maxItems: 1
0028
0029 dmas:
0030 maxItems: 1
0031
0032 dma-names:
0033 const: rx-tx
0034
0035 reset-names:
0036 description: |
0037 There are three reset signals at maximum
0038 host: mandatory for all variants
0039 bridge: exist only for version 2.91
0040 hw: optional. exist if eMMC hw reset line is available
0041 oneOf:
0042 - const: host
0043 - items:
0044 - const: host
0045 - const: bridge
0046 - items:
0047 - const: host
0048 - const: hw
0049 - items:
0050 - const: host
0051 - const: bridge
0052 - const: hw
0053
0054 resets:
0055 minItems: 1
0056 maxItems: 3
0057
0058 allOf:
0059 - $ref: mmc-controller.yaml
0060
0061 - if:
0062 properties:
0063 compatible:
0064 contains:
0065 const: socionext,uniphier-sd-v2.91
0066 then:
0067 properties:
0068 reset-names:
0069 contains:
0070 const: bridge
0071 else:
0072 properties:
0073 reset-names:
0074 not:
0075 contains:
0076 const: bridge
0077
0078 required:
0079 - compatible
0080 - reg
0081 - interrupts
0082 - clocks
0083 - reset-names
0084 - resets
0085
0086 unevaluatedProperties: false
0087
0088 examples:
0089 - |
0090 sd: mmc@5a400000 {
0091 compatible = "socionext,uniphier-sd-v2.91";
0092 reg = <0x5a400000 0x200>;
0093 interrupts = <0 76 4>;
0094 pinctrl-names = "default", "uhs";
0095 pinctrl-0 = <&pinctrl_sd>;
0096 pinctrl-1 = <&pinctrl_sd_uhs>;
0097 clocks = <&mio_clk 0>;
0098 reset-names = "host", "bridge";
0099 resets = <&mio_rst 0>, <&mio_rst 3>;
0100 dma-names = "rx-tx";
0101 dmas = <&dmac 4>;
0102 bus-width = <4>;
0103 cap-sd-highspeed;
0104 sd-uhs-sdr12;
0105 sd-uhs-sdr25;
0106 sd-uhs-sdr50;
0107 };
