forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
185 lines
5.3 KiB
185 lines
5.3 KiB
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
|
%YAML 1.2 |
|
--- |
|
$id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml# |
|
$schema: http://devicetree.org/meta-schemas/core.yaml# |
|
|
|
title: Brcmstb PCIe Host Controller Device Tree Bindings |
|
|
|
maintainers: |
|
- Nicolas Saenz Julienne <[email protected]> |
|
|
|
properties: |
|
compatible: |
|
items: |
|
- enum: |
|
- brcm,bcm2711-pcie # The Raspberry Pi 4 |
|
- brcm,bcm4908-pcie |
|
- brcm,bcm7211-pcie # Broadcom STB version of RPi4 |
|
- brcm,bcm7278-pcie # Broadcom 7278 Arm |
|
- brcm,bcm7216-pcie # Broadcom 7216 Arm |
|
- brcm,bcm7445-pcie # Broadcom 7445 Arm |
|
- brcm,bcm7425-pcie # Broadcom 7425 MIPs |
|
- brcm,bcm7435-pcie # Broadcom 7435 MIPs |
|
|
|
reg: |
|
maxItems: 1 |
|
|
|
interrupts: |
|
minItems: 1 |
|
items: |
|
- description: PCIe host controller |
|
- description: builtin MSI controller |
|
|
|
interrupt-names: |
|
minItems: 1 |
|
items: |
|
- const: pcie |
|
- const: msi |
|
|
|
ranges: |
|
minItems: 1 |
|
maxItems: 4 |
|
|
|
dma-ranges: |
|
minItems: 1 |
|
maxItems: 6 |
|
|
|
clocks: |
|
maxItems: 1 |
|
|
|
clock-names: |
|
items: |
|
- const: sw_pcie |
|
|
|
msi-controller: |
|
description: Identifies the node as an MSI controller. |
|
|
|
msi-parent: |
|
description: MSI controller the device is capable of using. |
|
|
|
brcm,enable-ssc: |
|
description: Indicates usage of spread-spectrum clocking. |
|
type: boolean |
|
|
|
aspm-no-l0s: true |
|
|
|
brcm,scb-sizes: |
|
description: u64 giving the 64bit PCIe memory |
|
viewport size of a memory controller. There may be up to |
|
three controllers, and each size must be a power of two |
|
with a size greater or equal to the amount of memory the |
|
controller supports. Note that each memory controller |
|
may have two component regions -- base and extended -- so |
|
this information cannot be deduced from the dma-ranges. |
|
$ref: /schemas/types.yaml#/definitions/uint64-array |
|
items: |
|
minItems: 1 |
|
maxItems: 3 |
|
|
|
required: |
|
- compatible |
|
- reg |
|
- ranges |
|
- dma-ranges |
|
- "#interrupt-cells" |
|
- interrupts |
|
- interrupt-names |
|
- interrupt-map-mask |
|
- interrupt-map |
|
- msi-controller |
|
|
|
allOf: |
|
- $ref: /schemas/pci/pci-bus.yaml# |
|
- $ref: /schemas/interrupt-controller/msi-controller.yaml# |
|
- if: |
|
properties: |
|
compatible: |
|
contains: |
|
const: brcm,bcm4908-pcie |
|
then: |
|
properties: |
|
resets: |
|
items: |
|
- description: reset controller handling the PERST# signal |
|
|
|
reset-names: |
|
items: |
|
- const: perst |
|
|
|
required: |
|
- resets |
|
- reset-names |
|
- if: |
|
properties: |
|
compatible: |
|
contains: |
|
const: brcm,bcm7216-pcie |
|
then: |
|
properties: |
|
resets: |
|
items: |
|
- description: phandle pointing to the RESCAL reset controller |
|
|
|
reset-names: |
|
items: |
|
- const: rescal |
|
|
|
required: |
|
- resets |
|
- reset-names |
|
|
|
unevaluatedProperties: false |
|
|
|
examples: |
|
- | |
|
#include <dt-bindings/interrupt-controller/irq.h> |
|
#include <dt-bindings/interrupt-controller/arm-gic.h> |
|
|
|
scb { |
|
#address-cells = <2>; |
|
#size-cells = <1>; |
|
pcie0: pcie@7d500000 { |
|
compatible = "brcm,bcm2711-pcie"; |
|
reg = <0x0 0x7d500000 0x9310>; |
|
device_type = "pci"; |
|
#address-cells = <3>; |
|
#size-cells = <2>; |
|
#interrupt-cells = <1>; |
|
interrupts = <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>, |
|
<GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>; |
|
interrupt-names = "pcie", "msi"; |
|
interrupt-map-mask = <0x0 0x0 0x0 0x7>; |
|
interrupt-map = <0 0 0 1 &gicv2 GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH |
|
0 0 0 2 &gicv2 GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH |
|
0 0 0 3 &gicv2 GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH |
|
0 0 0 4 &gicv2 GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>; |
|
|
|
msi-parent = <&pcie0>; |
|
msi-controller; |
|
ranges = <0x02000000 0x0 0xf8000000 0x6 0x00000000 0x0 0x04000000>; |
|
dma-ranges = <0x42000000 0x1 0x00000000 0x0 0x40000000 0x0 0x80000000>, |
|
<0x42000000 0x1 0x80000000 0x3 0x00000000 0x0 0x80000000>; |
|
brcm,enable-ssc; |
|
brcm,scb-sizes = <0x0000000080000000 0x0000000080000000>; |
|
|
|
/* PCIe bridge, Root Port */ |
|
pci@0,0 { |
|
#address-cells = <3>; |
|
#size-cells = <2>; |
|
reg = <0x0 0x0 0x0 0x0 0x0>; |
|
compatible = "pciclass,0604"; |
|
device_type = "pci"; |
|
vpcie3v3-supply = <&vreg7>; |
|
ranges; |
|
|
|
/* PCIe endpoint */ |
|
pci-ep@0,0 { |
|
assigned-addresses = |
|
<0x82010000 0x0 0xf8000000 0x6 0x00000000 0x0 0x2000>; |
|
reg = <0x0 0x0 0x0 0x0 0x0>; |
|
compatible = "pci14e4,1688"; |
|
}; |
|
}; |
|
}; |
|
};
|
|
|