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The PCI subsystem links an endpoint Device Tree node to its corresponding pci_dev structure only if the Bus/Device/Function (BDF) encoded in the 'reg' property matches the actual hardware topology. Add the 'reg' property and mark it as required to ensure proper binding between the device_node and the pci_dev. Update the example to reflect this requirement. Signed-off-by: Andrea della Porta <andrea.porta@suse.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/b58bfcd957b2270fcf932d463f2db534b2ae1a6d.1766077285.git.andrea.porta@suse.com Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
144 lines
3.5 KiB
YAML
144 lines
3.5 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/misc/pci1de4,1.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: RaspberryPi RP1 MFD PCI device
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maintainers:
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- A. della Porta <andrea.porta@suse.com>
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description:
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The RaspberryPi RP1 is a PCI multi function device containing
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peripherals ranging from Ethernet to USB controller, I2C, SPI
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and others.
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The peripherals are accessed by addressing the PCI BAR1 region.
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allOf:
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- $ref: /schemas/pci/pci-ep-bus.yaml
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properties:
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compatible:
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additionalItems: true
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maxItems: 3
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items:
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- const: pci1de4,1
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reg:
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maxItems: 1
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description: The PCI Bus-Device-Function address.
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'#interrupt-cells':
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const: 2
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description: |
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Specifies respectively the interrupt number and flags as defined
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in include/dt-bindings/interrupt-controller/irq.h.
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Since all interrupts are active high, only IRQ_TYPE_LEVEL_HIGH
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and IRQ_TYPE_EDGE_RISING can be specified as type flags.
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The supported values for the interrupt number are:
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- IO BANK0: 0
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- IO BANK1: 1
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- IO BANK2: 2
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- AUDIO IN: 3
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- AUDIO OUT: 4
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- PWM0: 5
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- ETH: 6
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- I2C0: 7
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- I2C1: 8
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- I2C2: 9
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- I2C3: 10
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- I2C4: 11
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- I2C5: 12
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- I2C6: 13
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- I2S0: 14
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- I2S1: 15
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- I2S2: 16
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- SDIO0: 17
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- SDIO1: 18
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- SPI0: 19
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- SPI1: 20
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- SPI2: 21
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- SPI3: 22
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- SPI4: 23
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- SPI5: 24
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- UART0: 25
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- TIMER0: 26
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- TIMER1: 27
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- TIMER2: 28
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- TIMER3: 29
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- USB HOST0: 30
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- USB HOST0-0: 31
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- USB HOST0-1: 32
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- USB HOST0-2: 33
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- USB HOST0-3: 34
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- USB HOST1: 35
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- USB HOST1-0: 36
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- USB HOST1-1: 37
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- USB HOST1-2: 38
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- USB HOST1-3: 39
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- DMA: 40
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- PWM1: 41
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- UART1: 42
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- UART2: 43
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- UART3: 44
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- UART4: 45
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- UART5: 46
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- MIPI0: 47
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- MIPI1: 48
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- VIDEO OUT: 49
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- PIO0: 50
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- PIO1: 51
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- ADC FIFO: 52
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- PCIE OUT: 53
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- SPI6: 54
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- SPI7: 55
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- SPI8: 56
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- PROC MISC: 57
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- SYSCFG: 58
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- CLOCKS DEFAULT: 59
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- VBUSCTRL: 60
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interrupt-controller: true
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unevaluatedProperties: false
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required:
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- compatible
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- reg
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- '#interrupt-cells'
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- interrupt-controller
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- pci-ep-bus@1
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examples:
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- |
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pci {
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#address-cells = <3>;
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#size-cells = <2>;
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dev@0,0 {
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compatible = "pci1de4,1";
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reg = <0x10000 0x0 0x0 0x0 0x0>;
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ranges = <0x01 0x00 0x00000000 0x82010000 0x00 0x00 0x00 0x400000>;
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#address-cells = <3>;
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#size-cells = <2>;
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interrupt-controller;
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#interrupt-cells = <2>;
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pci_ep_bus: pci-ep-bus@1 {
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compatible = "simple-bus";
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ranges = <0x00 0x40000000 0x01 0x00 0x00000000 0x00 0x00400000>;
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dma-ranges = <0x10 0x00000000 0x43000000 0x10 0x00000000 0x10 0x00000000>;
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#address-cells = <2>;
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#size-cells = <2>;
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rp1_clocks: clocks@40018000 {
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compatible = "raspberrypi,rp1-clocks";
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reg = <0x00 0x40018000 0x0 0x10038>;
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#clock-cells = <1>;
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clocks = <&clk_rp1_xosc>;
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};
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};
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};
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};
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