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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/samsung,ufs-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Samsung SoC series UFS PHY
maintainers:
- Alim Akhtar <alim.akhtar@samsung.com>
properties:
"#phy-cells":
const: 0
compatible:
enum:
- samsung,exynos7-ufs-phy
- samsung,exynosautov9-ufs-phy
- tesla,fsd-ufs-phy
reg:
maxItems: 1
reg-names:
items:
- const: phy-pma
clocks:
minItems: 1
maxItems: 4
clock-names:
minItems: 1
maxItems: 4
samsung,pmu-syscon:
$ref: /schemas/types.yaml#/definitions/phandle-array
maxItems: 1
items:
minItems: 1
items:
- description: phandle for PMU system controller interface, used to
control pmu registers bits for ufs m-phy
- description: offset of the pmu control register
description:
It can be phandle/offset pair. The second cell which can represent an
offset is optional.
required:
- "#phy-cells"
- compatible
- reg
- reg-names
- clocks
- clock-names
- samsung,pmu-syscon
allOf:
- if:
properties:
compatible:
contains:
const: samsung,exynos7-ufs-phy
then:
properties:
clocks:
items:
- description: PLL reference clock
- description: symbol clock for input symbol (rx0-ch0 symbol clock)
- description: symbol clock for input symbol (rx1-ch1 symbol clock)
- description: symbol clock for output symbol (tx0 symbol clock)
clock-names:
items:
- const: ref_clk
- const: rx1_symbol_clk
- const: rx0_symbol_clk
- const: tx0_symbol_clk
else:
properties:
clocks:
items:
- description: PLL reference clock
clock-names:
items:
- const: ref_clk
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/exynos7-clk.h>
ufs_phy: ufs-phy@15571800 {
compatible = "samsung,exynos7-ufs-phy";
reg = <0x15571800 0x240>;
reg-names = "phy-pma";
samsung,pmu-syscon = <&pmu_system_controller>;
#phy-cells = <0>;
clocks = <&clock_fsys1 SCLK_COMBO_PHY_EMBEDDED_26M>,
<&clock_fsys1 PHYCLK_UFS20_RX1_SYMBOL_USER>,
<&clock_fsys1 PHYCLK_UFS20_RX0_SYMBOL_USER>,
<&clock_fsys1 PHYCLK_UFS20_TX0_SYMBOL_USER>;
clock-names = "ref_clk", "rx1_symbol_clk",
"rx0_symbol_clk", "tx0_symbol_clk";
};
...
|
