Message-Id: <20260113-purwa-v3-0-16eefacbdce9@oss.qualcomm.com>
Date: Tue, 13 Jan 2026 18:28:12 +0800
From: YijieYang <yijie.yang@....qualcomm.com>
To: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, yijie.yang@....qualcomm.com,
        Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Subject: [PATCH v3 0/4] Initial patch set for PURWA-IOT-EVK

From: Yijie Yang <yijie.yang@....qualcomm.com>

Introduce the device tree, DT bindings, and driver updates required to enable
the bring-up of the PURWA-IOT-EVK evaluation board. Focus is on two key
hardware components:

PURWA-IOT-SOM — A compact System-on-Module integrating the SoC, GPIOs, and
PMICs. Designed for modularity, it can pair with various carrier boards to
support diverse use cases.

PURWA-IOT-EVK — A carrier board tailored for IoT scenarios, providing
essential peripherals such as UART, on-board PMICs, and USB components.

Together, these components form a flexible and scalable platform. Initial
functionality is achieved through proper device tree configuration and driver
support.

The PURWA-IOT-EVK/SOM shares most of its hardware design with
HAMOA-IOT-EVK/SOM, differing primarily in the BOM. Consequently, the DTS files
are largely similar. Both platforms belong to Qualcomm’s IQ-X family. For more
details on the IQ-X series, see:
https://www.qualcomm.com/internet-of-things/products/iq-x-series

Hardware differences between HAMOA-IOT and PURWA-IOT:
- Display — PURWA uses a different number of clocks and frequency compared to
  HAMOA.
- GPU — PURWA integrates a different GPU.
- USB0 — PURWA uses a PS8833 retimer, while HAMOA employs an FSUSB42 as the
  SBU switch.

Features added and enabled:
- UART
- On-board regulators
- Regulators on the SOM
- PMIC GLINK
- USB0 through USB6 and their PHYs
- Embedded USB (eUSB) repeaters
- USB Type-C mux
- PCIe3, PCIe4, PCIe5, PCIe6a
- Reserved memory regions
- Pinctrl
- NVMe
- ADSP, CDSP
- WLAN, Bluetooth (M.2 interface)
- USB DisplayPort and eDP
- Graphics
- Audio

Signed-off-by: Yijie Yang <yijie.yang@....qualcomm.com>
---
Changes in v2:
- Update the GPU firmware path.
- Update the description in the cover letter.
- Reorder the patches.
- Use separate DTS files for Purwa and Hamoa.
- Update base commit.
- Link to v1: https://lore.kernel.org/all/20251222-purwa-v1-0-14ab9316e5ff@oss.qualcomm.com/

Changes in v3:
- Delete unused PMIC and thermal nodes.
- Add WiFi node.
- Add display backlight node.
- Add connectors and VBUS regulators for USB3 and USB6.
- Enable PCIe3 and PCIe5; add PCIe ports along with reset and wake-up GPIOs.
- Link to v2: https://lore.kernel.org/r/20260109-purwa-v2-0-f39ee10684cb@oss.qualcomm.com

---
Yijie Yang (4):
      dt-bindings: arm: qcom: Document PURWA-IOT-EVK board
      firmware: qcom: scm: Allow QSEECOM on PURWA-IOT-EVK
      arm64: dts: qcom: Add PURWA-IOT-SOM platform
      arm64: dts: qcom: Add base PURWA-IOT-EVK board

 Documentation/devicetree/bindings/arm/qcom.yaml |    6 +
 arch/arm64/boot/dts/qcom/Makefile               |    1 +
 arch/arm64/boot/dts/qcom/purwa-iot-evk.dts      | 1539 +++++++++++++++++++++++
 arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi     |  685 ++++++++++
 drivers/firmware/qcom/qcom_scm.c                |    1 +
 5 files changed, 2232 insertions(+)
---
base-commit: 377054868ffa544991cc491ecc4016589fc58565
change-id: 20251113-purwa-907ec75b4959

Best regards,
--  
Yijie Yang <yijie.yang@....qualcomm.com>

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