Commit 8e31a949 authored by Vignesh Raghavendra's avatar Vignesh Raghavendra Committed by Martin K. Petersen

scsi: dt-bindings: ufs: ti,j721e-ufs.yaml: Add binding for TI UFS wrapper

Add binding documentation of TI wrapper for Cadence UFS Controller.

Link: https://lore.kernel.org/r/20191108164857.11466-2-vigneshr@ti.comReviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarVignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 0eccce86
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/ufs/ti,j721e-ufs.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI J721e UFS Host Controller Glue Driver
maintainers:
- Vignesh Raghavendra <vigneshr@ti.com>
properties:
compatible:
items:
- const: ti,j721e-ufs
reg:
maxItems: 1
description: address of TI UFS glue registers
clocks:
maxItems: 1
description: phandle to the M-PHY clock
power-domains:
maxItems: 1
required:
- compatible
- reg
- clocks
- power-domains
patternProperties:
"^ufs@[0-9a-f]+$":
type: object
description: |
Cadence UFS controller node must be the child node. Refer
Documentation/devicetree/bindings/ufs/cdns,ufshc.txt for binding
documentation of child node
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
ufs_wrapper: ufs-wrapper@4e80000 {
compatible = "ti,j721e-ufs";
reg = <0x0 0x4e80000 0x0 0x100>;
power-domains = <&k3_pds 277>;
clocks = <&k3_clks 277 1>;
assigned-clocks = <&k3_clks 277 1>;
assigned-clock-parents = <&k3_clks 277 4>;
#address-cells = <2>;
#size-cells = <2>;
ufs@4e84000 {
compatible = "cdns,ufshc-m31-16nm", "jedec,ufs-2.0";
reg = <0x0 0x4e84000 0x0 0x10000>;
interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
freq-table-hz = <19200000 19200000>;
power-domains = <&k3_pds 277>;
clocks = <&k3_clks 277 1>;
assigned-clocks = <&k3_clks 277 1>;
assigned-clock-parents = <&k3_clks 277 4>;
clock-names = "core_clk";
};
};
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