[PATCH 0/9] PCI: qcom: Add PCIe support for Shikra SoC

[Manivannan Sadhasivam]

On Wed, Jul 01, 2026 at 12:32:42AM +0530, Sushrut Shree Trivedi wrote:
> Add PCIe support for Shikra target, by adding dt-bindings for phy,
> controller and corresponding phy & controller drivers/device-tree
> changes.
> 
> Shikra RC is connected to TC9563 PCIe switch on all three
> EVK variants: CQS, CQM and IQS. The individual downstream ports
> of TC9563 connect like below:
> 
> DSP1: M.2 B-Key for 5G Modem
> DSP2: M.2 M-Key for NVMe
> DSP3: Embedded ethernet device
> 
> Power and reset to M.2 B and M.2 M slot are controlled via
> TC9563 GPIO's. Hence, add DT nodes to enable TC9563 switch
> and include corresponding changes to configure power/reset
> to TC9563 endpoints as part of power on sequence.
> 
> Signed-off-by: Sushrut Shree Trivedi <sushrut.trivedi at oss.qualcomm.com>
> ---
> Sushrut Shree Trivedi (9):
>       dt-bindings: phy: sc8280xp-qmp-pcie: Document Shikra PCIe phy
>       dt-bindings: PCI: qcom: Document the Shikra PCIe Controller
>       dt-bindings: PCI: Add bindings for endpoint gpios
>       PCI: qcom: Add support for Shikra
>       phy: qcom: qmp-pcie: Add QMP PCIe PHY support for Shikra
>       PCI/pwrctrl: tc9563: Add API to control endpoint power and reset

TC9563 should be modeled as a GPIO controller to drive the PERST# and power-on
GPIOs. There is a patch series under review [1] that adds this support. So it
doesn't make sense to duplicate the effort here (which itself is hackish). So
please drop all the switch related patches from this series and resubmit them
once the above mentioned series from Alex gets merged.

But you can continue with the Shikra PCIe RC/PHY patches.

- Mani

[1] https://lore.kernel.org/all/20260605010022.968612-1-elder@riscstar.com

>       arm64: dts: qcom: shikra: Add PCIe PHY and controller nodes
>       arm64: dts: qcom: shikra-evk: Add TC9563 PCIe switch node for PCIe
>       arm64: dts: qcom: shikra-(cqm/cqs/iqs)-evk: Enable PCIe PHY node
> 
>  .../devicetree/bindings/pci/qcom,shikra-pcie.yaml  | 211 +++++++++++++++++++++
>  .../devicetree/bindings/pci/toshiba,tc9563.yaml    |  22 ++-
>  .../bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml   |   2 +
>  arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts        |   7 +
>  arch/arm64/boot/dts/qcom/shikra-cqs-evk.dts        |   7 +
>  arch/arm64/boot/dts/qcom/shikra-evk.dtsi           | 152 +++++++++++++++
>  arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts        |   7 +
>  arch/arm64/boot/dts/qcom/shikra.dtsi               | 154 +++++++++++++++
>  drivers/pci/controller/dwc/pcie-qcom.c             |   1 +
>  drivers/pci/pwrctrl/pci-pwrctrl-tc9563.c           | 152 ++++++++++++---
>  drivers/phy/qualcomm/phy-qcom-qmp-pcie.c           |  73 +++++++
>  11 files changed, 764 insertions(+), 24 deletions(-)
> ---
> base-commit: 565fa02f75448ce1ddd18bda6b31ad985cf75411
> change-id: 20260701-shikra-upstream-14b8668f1001
> 
> Best regards,
> -- 
> Sushrut Shree Trivedi <sushrut.trivedi at oss.qualcomm.com>
> 
> 

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