Re: [PATCH v2 0/2] arm64: dts: qcom: qcs6490-rb3gen2-industrial-mezzanine: Add TC9563 PCIe switch nodes

[Sushrut Shree Trivedi]

Hi,

Apologies for the error, this is v1 series.

Thanks

On 2/3/2026 10:01 AM, Sushrut Shree Trivedi wrote:
> Add nodes for the two additional TC9563 PCIe switches present on the
> QCOM RB3Gen2 Industrial Mezzanine platform.
>
> One of the TC9563 is connected directly to the PCIe0 root-port while
> the second TC9563 switch is connected in cascade fashion to another
> already available TC9563 switch on PCIe1 via the former's downstream
> port (DSP). The final PCIe hierarchy on the Industrial Mezz platform
> would look something like below:
>
>                     ┌────────────────────────────┐
>                     │                            │
>                     │                            │
>                     │                            │
>                     │            SoC             │
>                     │                            │
>                     │    PCIe0           PCIe1   │
>                     │    ┌───┐           ┌───┐   │
>                     └────└─┬─┘───────────└─┬─┘───┘
>                            │               │
>                            │               │
>                            │               │
>           ┌────────────────┘               └────────────────┐
>           │                                                 │
>           │                                                 │
>           │                                                 │
> ┌────────┴─────────┐                            ┌──────────┴───────┐
> │       USP        │                            │        USP       │
> │                  │                            │                  │
> │      TC9563      │                            │      TC9563      │
> │                  │                            │                  │
> │                  │                            │                  │
> │ DSP1  DSP2  DSP3 │                            │ DSP1  DSP2  DSP3 │
> └──┬──────┬─────┬──┘                            └───┬─────┬─────┬──┘
>     │      │     │                                   │     │     │
>     │      │     │                                   │     │     │
>     │      │     │                                   │     │     │
>     │      │     │                                   │     EP    ETHERNET
>     │      │     │                                   │
>     │      │     │                                   └──────┐
>     EP     EP    ETHERNET                                   │
>                                                             │
>                                                             │
>                                                   ┌─────────┴────────┐
>                                                   │        USP       │
>                                                   │                  │
>                                                   │      TC9563      │
>                                                   │                  │
>                                                   │                  │
>                                                   │ DSP1  DSP2  DSP3 │
>                                                   └──┬──────┬─────┬──┘
>                                                      │      │     │
>                                                      │      │     │
>                                                      │      │     │
>                                                      │      │     │
>                                                      │      │     │
>                                                      EP     EP    ETHERNET
>                                                                                         
>                                                                                         
>
> Signed-off-by: Sushrut Shree Trivedi <sushrut.trivedi@xxxxxxxxxxxxxxxx>
> ---
> Changes in v2:
> - EDITME: describe what is new in this series revision.
> - EDITME: use bulletpoints and terse descriptions.
> - Link to v1: https://lore.kernel.org/r/20260131-industrial-mezzanine-pcie-v1-0-b3c2905dd768@xxxxxxxxxxxxxxxx
>
> ---
> Sushrut Shree Trivedi (2):
>        arm64: dts: qcom: qcs6490-rb3gen2-industrial-mezzanine: Add TC9563 PCIe switch node for PCIe0
>        arm64: dts: qcom: qcs6490-rb3gen2-industrial-mezzanine: Add second TC9563 PCIe switch node for PCIe1
>
>   .../qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso | 234 +++++++++++++++++++++
>   arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts       |  12 +-
>   2 files changed, 240 insertions(+), 6 deletions(-)
> ---
> base-commit: 4f938c7d3b25d87b356af4106c2682caf8c835a2
> change-id: 20260131-industrial-mezzanine-pcie-75dd851f5b04
>
> Best regards,