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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
# Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/ti,j721e-pci-host.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI J721E PCI Host (PCIe Wrapper)
maintainers:
- Kishon Vijay Abraham I <kishon@ti.com>
properties:
compatible:
oneOf:
- const: ti,j721e-pcie-host
- const: ti,j784s4-pcie-host
- description: PCIe controller in AM64
items:
- const: ti,am64-pcie-host
- const: ti,j721e-pcie-host
- description: PCIe controller in J7200
items:
- const: ti,j7200-pcie-host
- const: ti,j721e-pcie-host
reg:
maxItems: 4
reg-names:
items:
- const: intd_cfg
- const: user_cfg
- const: reg
- const: cfg
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:
minItems: 1
maxItems: 2
description: |+
clock-specifier to represent input to the PCIe for 1 item.
2nd item if present represents reference clock to the connector.
clock-names:
minItems: 1
items:
- const: fck
- const: pcie_refclk
dma-coherent: true
vendor-id:
const: 0x104c
device-id:
enum:
- 0xb00d
- 0xb00f
- 0xb010
- 0xb013
msi-map: true
interrupts:
maxItems: 1
interrupt-names:
items:
- const: link_state
interrupt-controller:
type: object
additionalProperties: false
properties:
interrupt-controller: true
'#interrupt-cells':
const: 1
interrupts:
maxItems: 1
allOf:
- $ref: cdns-pcie-host.yaml#
- if:
properties:
compatible:
enum:
- ti,am64-pcie-host
then:
properties:
num-lanes:
const: 1
- if:
properties:
compatible:
enum:
- ti,j7200-pcie-host
- ti,j721e-pcie-host
then:
properties:
num-lanes:
minimum: 1
maximum: 2
- if:
properties:
compatible:
enum:
- ti,j784s4-pcie-host
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
- vendor-id
- device-id
- msi-map
- dma-ranges
- ranges
- reset-gpios
- phys
- phy-names
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/soc/ti,sci_pm_domain.h>
#include <dt-bindings/gpio/gpio.h>
bus {
#address-cells = <2>;
#size-cells = <2>;
pcie0_rc: pcie@2900000 {
compatible = "ti,j721e-pcie-host";
reg = <0x00 0x02900000 0x00 0x1000>,
<0x00 0x02907000 0x00 0x400>,
<0x00 0x0d000000 0x00 0x00800000>,
<0x00 0x10000000 0x00 0x00001000>;
reg-names = "intd_cfg", "user_cfg", "reg", "cfg";
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";
device_type = "pci";
#address-cells = <3>;
#size-cells = <2>;
bus-range = <0x0 0xf>;
vendor-id = <0x104c>;
device-id = <0xb00d>;
msi-map = <0x0 &gic_its 0x0 0x10000>;
dma-coherent;
reset-gpios = <&exp1 6 GPIO_ACTIVE_HIGH>;
phys = <&serdes0_pcie_link>;
phy-names = "pcie-phy";
ranges = <0x01000000 0x0 0x10001000 0x00 0x10001000 0x0 0x0010000>,
<0x02000000 0x0 0x10011000 0x00 0x10011000 0x0 0x7fef000>;
dma-ranges = <0x02000000 0x0 0x0 0x0 0x0 0x10000 0x0>;
};
};
|
