Re: [PATCH v2 0/5] arm64: dts: qcom: nord: Add PCIe and WLAN support

[Bjorn Andersson <andersson@kernel.org>]

On Tue, Sep 15, 2026 at 09:56:27AM +0800, Shawn Guo wrote:
> This series enables PCIe on the Qualcomm Nord SoC and brings up the WLAN
> modules on the two reference boards.
> 
> Nord has four PCIe controllers fed by a single quadfurcated Gen5 QMP
> multi-PHY.  The link topology (x16, x8+x8, x8+x4+x4 or x8+x4+x2+x2) is
> selected by firmware through a TCSR register that the PHY driver reads at
> probe time, so the DT only describes the PHY ports and hands the driver
> the TCSR handle.  Patch 1 adds the PHY, the four controllers and the PCIe
> SMMU; patches 2 and 3 enable them on the IQ10 Robotics Reference Design
> and the Ride Embedded board respectively, along with the per-port PERST#
> and WAKE# lines.
> 
> Patches 4 and 5 add the WCN7850 WLAN module sitting on PCIe2 on both
> boards.  The two boards power the module differently: the Ride Embedded
> connectivity adapter card derives the core rails from the module DBUs
> gated by PWR_CORE and PWR_CTRL1, whereas the RRD generates them with
> discrete on-board bucks behind a single core power enable.  Both are
> described as they are wired.
> 
> This depends on the Nord Gen5x16 multi-PHY driver support [1], without
> which the PHY does not probe.
> 
> Dependencies:
> - PCIe and PHY: https://lore.kernel.org/all/20260909-nord-v3-0-b0a82721c547@oss.qualcomm.com/

This doesn't look like it will be merged, please retest and resubmit
once the dependencies has been accepted.

Thanks,
Bjorn

> - DTS prerequisite: https://lore.kernel.org/all/20260904081619.593602-1-shengchao.guo@oss.qualcomm.com/
> 
> Changes for v2:
> - Add missing leading zero for pcie_smmu reg property
> - Link to v1: https://lore.kernel.org/all/20260914071944.164217-1-shengchao.guo@oss.qualcomm.com/
> 
> Krishna Chaitanya Chundru (3):
>   arm64: dts: qcom: nord: Add PCIe PHY and controller nodes
>   arm64: dts: qcom: nord-rrd: Enable PCIe controllers and PHY
>   arm64: dts: qcom: nord-ride-embedded: Enable PCIe controllers and PHY
> 
> Shawn Guo (1):
>   arm64: dts: qcom: nord-rrd: Add WCN7850 WLAN support
> 
> Yu Zhang(Yuriy) (1):
>   arm64: dts: qcom: nord-ride-embedded: Add WCN7850 WLAN support
> 
>  arch/arm64/boot/dts/qcom/nord-embedded.dtsi   | 926 +++++++++++++++++-
>  .../boot/dts/qcom/nord-ride-embedded.dts      | 151 +++
>  arch/arm64/boot/dts/qcom/nord-rrd.dts         | 158 +++
>  arch/arm64/boot/dts/qcom/nord.dtsi            | 297 ++++++
>  4 files changed, 1528 insertions(+), 4 deletions(-)
> 
> -- 
> 2.43.0
>