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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/mmc/socionext,uniphier-sd.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: UniPhier SD/SDIO/eMMC controller
maintainers:
- Masahiro Yamada <yamada.masahiro@socionext.com>
properties:
compatible:
description: version 2.91, 3.1, 3.1.1, respectively
enum:
- socionext,uniphier-sd-v2.91
- socionext,uniphier-sd-v3.1
- socionext,uniphier-sd-v3.1.1
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
maxItems: 1
dmas:
maxItems: 1
dma-names:
const: rx-tx
reset-names:
description: |
There are three reset signals at maximum
host: mandatory for all variants
bridge: exist only for version 2.91
hw: optional. exist if eMMC hw reset line is available
oneOf:
- const: host
- items:
- const: host
- const: bridge
- items:
- const: host
- const: hw
- items:
- const: host
- const: bridge
- const: hw
resets:
minItems: 1
maxItems: 3
socionext,syscon-uhs-mode:
$ref: /schemas/types.yaml#/definitions/phandle-array
items:
- items:
- description: phandle to syscon that configures UHS mode
- description: ID of SD instance
description:
A phandle to syscon with one argument that configures UHS mode.
The argument is the ID of SD instance.
allOf:
- $ref: mmc-controller.yaml
- if:
properties:
compatible:
contains:
const: socionext,uniphier-sd-v2.91
then:
properties:
reset-names:
contains:
const: bridge
else:
properties:
reset-names:
not:
contains:
const: bridge
required:
- compatible
- reg
- interrupts
- clocks
- reset-names
- resets
unevaluatedProperties: false
examples:
- |
sd: mmc@5a400000 {
compatible = "socionext,uniphier-sd-v2.91";
reg = <0x5a400000 0x200>;
interrupts = <0 76 4>;
pinctrl-names = "default", "uhs";
pinctrl-0 = <&pinctrl_sd>;
pinctrl-1 = <&pinctrl_sd_uhs>;
clocks = <&mio_clk 0>;
reset-names = "host", "bridge";
resets = <&mio_rst 0>, <&mio_rst 3>;
dma-names = "rx-tx";
dmas = <&dmac 4>;
bus-width = <4>;
cap-sd-highspeed;
sd-uhs-sdr12;
sd-uhs-sdr25;
sd-uhs-sdr50;
};
|
