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

[Krishna Chaitanya Chundru]

On 8/2/2026 9:27 AM, Bjorn Andersson wrote:
> On Thu, Jul 30, 2026 at 05:30:15PM +0530, Krishna Chaitanya Chundru wrote:
>> 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/20260630-eliza-dts-qcs-evk-v4-3-18cbbdba6e7e@xxxxxxxxxxxxxxxx/
>>   https://lore.kernel.org/all/20260630-dts-qcom-eliza-mtp-evk-add-pmics-v1-1-f4f320f7c88b@xxxxxxxxxxxxxxxx/
> As far as I can tell these where merged 3 weeks ago, please help me
> understand what dependencies we're missing.
Sorry, I missed checking this part. As these are already merged there are no
dependencies for this series.

- Krishna Chaitanya.
>
> Regards,
> Bjorn
>
>> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@xxxxxxxxxxxxxxxx>
>> ---
>> 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/20260730-eliza_evk-v6-0-40ece2d33114@xxxxxxxxxxxxxxxx
>>
>> Changes in v6:
>> - change 0 to 0x0 & remove num-lanes property (Mani)
>> - Link to v5: https://patch.msgid.link/20260729-eliza_evk-v5-0-41790a5a24de@xxxxxxxxxxxxxxxx
>>
>> Changes in v5:
>> - change from pci to pcie for subnode names (konrad)
>> - Link to v4: https://patch.msgid.link/20260728-eliza_evk-v4-0-decc7fe5246e@xxxxxxxxxxxxxxxx
>>
>> Changes in v4:
>> - Added new line and used pcie port names as pcieN_portM (Konrad).
>> - Link to v3: https://patch.msgid.link/20260721-eliza_evk-v3-0-92b10038f13d@xxxxxxxxxxxxxxxx
>>
>> Changes in v3:
>> - Clubbed pcie nodes to this series (Bjorn A)
>>   (https://lore.kernel.org/all/20260708-eliza_dt-v2-1-e6281da26408@xxxxxxxxxxxxxxxx/)
>> - Added comment for PERST (Mani).
>> - Extended ranges property for pcie1 (Konrad).
>> - Link to v2: https://patch.msgid.link/20260708-eliza_evk-v2-0-c599246ceba1@xxxxxxxxxxxxxxxx
>>
>> Changes in v2:
>> - Drop patch 3, as this is already applied
>> - Rebase on top of https://lore.kernel.org/all/20260708055017.A90C91F000E9@xxxxxxxxxxxxxxx/
>>   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/20260703-eliza_evk-v1-0-7624440bd76d@xxxxxxxxxxxxxxxx
>>
>> ---
>> 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@xxxxxxxxxxxxxxxx>
>> prerequisite-patch-id: f3615b5c1e2222a2491f862a7fba3994058ecc53
>>
>> Best regards,
>> --  
>> Krishna Chaitanya Chundru <krishna.chundru@xxxxxxxxxxxxxxxx>
>>