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

[Sushrut Shree Trivedi <sushrut.trivedi@oss.qualcomm.com>]

On 7/8/2026 1:32 PM, Manivannan Sadhasivam wrote:
> 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@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
ACK'd
>
>>        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@oss.qualcomm.com>
>>
>>

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