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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
# Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/ti,j721e-pci-ep.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI J721E PCI EP (PCIe Wrapper)
maintainers:
- Kishon Vijay Abraham I <kishon@ti.com>
properties:
compatible:
oneOf:
- const: ti,j721e-pcie-ep
- const: ti,j784s4-pcie-ep
- description: PCIe EP controller in AM64
items:
- const: ti,am64-pcie-ep
- const: ti,j721e-pcie-ep
- description: PCIe EP controller in J7200
items:
- const: ti,j7200-pcie-ep
- const: ti,j721e-pcie-ep
reg:
maxItems: 4
reg-names:
items:
- const: intd_cfg
- const: user_cfg
- const: reg
- const: mem
ti,syscon-pcie-ctrl:
$ref: /schemas/types.yaml#/definitions/phandle-array
items:
- items:
- description: Phandle to the SYSCON entry
- description: pcie_ctrl register offset within SYSCON
description: Specifier for configuring PCIe mode and link speed.
power-domains:
maxItems: 1
clocks:
maxItems: 1
description: clock-specifier to represent input to the PCIe
clock-names:
items:
- const: fck
dma-coherent:
description: Indicates that the PCIe IP block can ensure the coherency
interrupts:
maxItems: 1
interrupt-names:
items:
- const: link_state
allOf:
- $ref: cdns-pcie-ep.yaml#
- if:
properties:
compatible:
enum:
- ti,am64-pcie-ep
then:
properties:
num-lanes:
const: 1
- if:
properties:
compatible:
enum:
- ti,j7200-pcie-ep
- ti,j721e-pcie-ep
then:
properties:
num-lanes:
minimum: 1
maximum: 2
- if:
properties:
compatible:
enum:
- ti,j784s4-pcie-ep
then:
properties:
num-lanes:
minimum: 1
maximum: 4
required:
- compatible
- reg
- reg-names
- ti,syscon-pcie-ctrl
- max-link-speed
- num-lanes
- power-domains
- clocks
- clock-names
- max-functions
- phys
- phy-names
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/soc/ti,sci_pm_domain.h>
bus {
#address-cells = <2>;
#size-cells = <2>;
pcie0_ep: pcie-ep@d000000 {
compatible = "ti,j721e-pcie-ep";
reg = <0x00 0x02900000 0x00 0x1000>,
<0x00 0x02907000 0x00 0x400>,
<0x00 0x0d000000 0x00 0x00800000>,
<0x00 0x10000000 0x00 0x08000000>;
reg-names = "intd_cfg", "user_cfg", "reg", "mem";
ti,syscon-pcie-ctrl = <&pcie0_ctrl 0x4070>;
max-link-speed = <3>;
num-lanes = <2>;
power-domains = <&k3_pds 239 TI_SCI_PD_EXCLUSIVE>;
clocks = <&k3_clks 239 1>;
clock-names = "fck";
max-functions = /bits/ 8 <6>;
dma-coherent;
phys = <&serdes0_pcie_link>;
phy-names = "pcie-phy";
};
};
|
