[PATCH v5 1/9 RESEND] dt-bindings: PCI: Add STM32MP25 PCIe Root Complex bindings

Manivannan Sadhasivam manivannan.sadhasivam at linaro.org
Wed Apr 9 00:27:05 PDT 2025


On Tue, Mar 25, 2025 at 07:59:27AM +0100, Christian Bruel wrote:
> Document the bindings for STM32MP25 PCIe Controller configured in
> root complex mode with one root port.
> 
> Supports 4 INTx and MSI interrupts from the ARM GICv2m controller.
> 
> STM32 PCIe may be in a power domain which is the case for the STM32MP25
> based boards.
> 
> Supports WAKE# from wake-gpios
> 
> Signed-off-by: Christian Bruel <christian.bruel at foss.st.com>

Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam at linaro.org>

One comment below.

> Reviewed-by: Rob Herring (Arm) <robh at kernel.org>
> ---
>  .../bindings/pci/st,stm32-pcie-common.yaml    |  33 ++++++
>  .../bindings/pci/st,stm32-pcie-host.yaml      | 112 ++++++++++++++++++
>  2 files changed, 145 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pci/st,stm32-pcie-common.yaml
>  create mode 100644 Documentation/devicetree/bindings/pci/st,stm32-pcie-host.yaml
> 

[...]

> +    pcie at 48400000 {
> +        compatible = "st,stm32mp25-pcie-rc";
> +        device_type = "pci";
> +        reg = <0x48400000 0x400000>,
> +              <0x10000000 0x10000>;
> +        reg-names = "dbi", "config";
> +        #interrupt-cells = <1>;
> +        interrupt-map-mask = <0 0 0 7>;
> +        interrupt-map = <0 0 0 1 &intc 0 0 GIC_SPI 264 IRQ_TYPE_LEVEL_HIGH>,
> +                        <0 0 0 2 &intc 0 0 GIC_SPI 265 IRQ_TYPE_LEVEL_HIGH>,
> +                        <0 0 0 3 &intc 0 0 GIC_SPI 266 IRQ_TYPE_LEVEL_HIGH>,
> +                        <0 0 0 4 &intc 0 0 GIC_SPI 267 IRQ_TYPE_LEVEL_HIGH>;
> +        #address-cells = <3>;
> +        #size-cells = <2>;
> +        ranges = <0x01000000 0x0 0x00000000 0x10010000 0x0 0x10000>,
> +                 <0x02000000 0x0 0x10020000 0x10020000 0x0 0x7fe0000>,
> +                 <0x42000000 0x0 0x18000000 0x18000000 0x0 0x8000000>;
> +        dma-ranges = <0x42000000 0x0 0x80000000 0x80000000 0x0 0x80000000>;
> +        clocks = <&rcc CK_BUS_PCIE>;
> +        resets = <&rcc PCIE_R>;
> +        msi-parent = <&v2m0>;
> +        access-controllers = <&rifsc 68>;
> +        power-domains = <&CLUSTER_PD>;
> +
> +        pcie at 0,0 {
> +          device_type = "pci";

Indentation is off by 2 spaces.

- Mani

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