[PATCH v7 0/3] arm64: dts: qcom: eliza-evk: Enable PCIe0 and PCIe1 with M.2 and TC9563 switch

Krishna Chaitanya Chundru <[email protected]> Thu, 30 Jul 2026 17:30:15 +0530
Newsgroups org.kernel.vger.linux-pci,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.kernel.vger.linux-pm
Message-ID <[email protected]>
This series enables PCIe for the Eliza EVK board (CQS SoM on EVK carrier).

The Eliza EVK exposes two PCIe ports:

- PCIe0 drives an M.2 E key connector. The 3.3V supply is GPIO-controlled
  via a TCA9538 I/O expander on I2C4. The slot hosts a WLAN module
  (connected over PCIe) and a Bluetooth device (connected over UART5),
  modelled with the pcie-m2-e-connector binding.

- PCIe1 (8GT/s x2) connects to a Toshiba TC9563 PCIe switch, whose
  management interface sits on I2C4 (address 0x77). The TC9563 RESX# and
  PERST# lines are OR-ed internally; reset is driven via a TLMM GPIO on
  the RESX# pin. The iommu-map covers all downstream switch ports
  (SID range 0x1400-0x1408).

The M.2 WLAN module carries a Qualcomm QCC2072 Bluetooth chip. A device-ID
entry is added to the M.2 power sequencer so the serdev node for the BT
UART interface is created on PCI enumeration.

This seris Depends-on:
  https://lore.kernel.org/all/[email protected]/
  https://lore.kernel.org/all/20260630-dts-qcom-eliza-mtp-evk-add-pmics-v1-1-f4f320f7c88b@oss.qualcomm.com/

Signed-off-by: Krishna Chaitanya Chundru <[email protected]>
---
Changes in v7:
- Change the pcie sub nodes under dsp3 from pci to ethernet (Sashiko).
- Update the iommu-map to 2 cells from 1 cell (Mani).
- Link to v6: https://patch.msgid.link/[email protected]

Changes in v6:
- change 0 to 0x0 & remove num-lanes property (Mani)
- Link to v5: https://patch.msgid.link/[email protected]

Changes in v5:
- change from pci to pcie for subnode names (konrad)
- Link to v4: https://patch.msgid.link/[email protected]

Changes in v4:
- Added new line and used pcie port names as pcieN_portM (Konrad).
- Link to v3: https://patch.msgid.link/[email protected]

Changes in v3:
- Clubbed pcie nodes to this series (Bjorn A)
  (https://lore.kernel.org/all/[email protected]/)
- Added comment for PERST (Mani).
- Extended ranges property for pcie1 (Konrad).
- Link to v2: https://patch.msgid.link/[email protected]

Changes in v2:
- Drop patch 3, as this is already applied
- Rebase on top of https://lore.kernel.org/all/[email protected]/
  and remove pincntrl as pincntrl is added in the eliza.dtsi patch and also remove
  pinctrl for resx as this is covered in pcie1_default_state as perst gpio.
- Link to v1: https://patch.msgid.link/[email protected]

---
Krishna Chaitanya Chundru (3):
      arm64: dts: qcom: eliza: Add PCIe PHY and controller nodes
      arm64: dts: qcom: eliza-evk: Add PCIe0 with M.2 E key connector
      arm64: dts: qcom: eliza-evk: Add PCIe1 with TC9563 PCIe switch

 arch/arm64/boot/dts/qcom/eliza-evk.dtsi | 221 +++++++++++++++++
 arch/arm64/boot/dts/qcom/eliza.dtsi     | 413 +++++++++++++++++++++++++++++++-
 2 files changed, 632 insertions(+), 2 deletions(-)
---
base-commit: dc59e4fea9d83f03bad6bddf3fa2e52491777482
change-id: 20260629-eliza_evk-6f30686b161f
prerequisite-patch-id: 9e10dfbe360941cdac0300aaf163149755952f9f
prerequisite-patch-id: fecce0170351baf00cbe8f6b302d1def4d99bbfc
prerequisite-patch-id: 97cd6cb495fdd198f6de7fbe45ef32e4a638ec9c
prerequisite-message-id: <20260630-dts-qcom-eliza-mtp-evk-add-pmics-v1-1-f4f320f7c88b@oss.qualcomm.com>
prerequisite-patch-id: f3615b5c1e2222a2491f862a7fba3994058ecc53

Best regards,
--  
Krishna Chaitanya Chundru <[email protected]>