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Message-Id: <20250804-hamoa_initial-v4-0-19edbb28677b@oss.qualcomm.com>
Date: Mon, 04 Aug 2025 09:37:03 +0800
From: Yijie Yang <yijie.yang@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: Yijie Yang <yijie.yang@....qualcomm.com>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Yingying Tang <quic_yintang@...cinc.com>,
        Shuai Zhang <quic_shuaz@...cinc.com>,
        Yongxing Mou <quic_yongmou@...cinc.com>
Subject: [PATCH v4 0/4] Initial support for Qualcomm Hamoa IOT EVK board

Introduce the device tree, DT bindings, and driver modifications required
to bring up the HAMOA-IOT-EVK evaluation board—based on the X1E80100 SoC—to
a UART shell.
This patch set focuses on two key hardware components: the HAMOA-IOT-SOM
and the HAMOA-IOT-EVK carrier board.
The HAMOA-IOT-SOM is a compact System on Module that integrates the SoC,
GPIOs, and PMICs. It is designed to be modular and can be paired with
various carrier boards to support different use cases.
The HAMOA-IOT-EVK is one such carrier board, designed for IoT scenarios.
It provides essential peripherals such as UART, on-board PMICs, and
USB-related components.
Together, these components form a flexible and scalable platform, and this
patch set enables their initial bring-up through proper device tree
configuration and driver support.

Qualcomm SoCs often have multiple product variants, each identified by a
different SoC ID. For instance, the x1e80100 SoC has closely related
variants such as x1e78100 and x1e001de. This diversity in SoC identifiers
can lead to confusion and unnecessary maintenance complexity in the device
tree and related subsystems.
To address this, code names offer a more consistent and project-agnostic
way to represent SoC families. They tend to remain stable across
development efforts.
This patch series introduces "hamoa" as the codename for the x1e80100 SoC.
Going forward, all x1e80100-related variants—including x1e81000 and others
in the same family—will be represented under the "hamoa" designation in the
device tree.
This improves readability, streamlines future maintenance, and aligns with
common naming practices across Qualcomm-based platforms. 

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
- PCIe6a and its PHY
- PCIe4 and its PHY
- Reserved memory regions
- Pinctrl
- NVMe
- ADSP, CDSP
- WLAN, Bluetooth (M.2 interface)
- USB DisplayPort

DTS Dependency:
https://lore.kernel.org/all/20250724-move-edp-endpoints-v1-3-6ca569812838@oss.qualcomm.com/

Signed-off-by: Yijie Yang <yijie.yang@....qualcomm.com>
---
To: Bjorn Andersson <andersson@...nel.org>
To: Konrad Dybcio <konradybcio@...nel.org>
To: Rob Herring <robh@...nel.org>
To: Krzysztof Kozlowski <krzk+dt@...nel.org>
To: Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org
Cc: devicetree@...r.kernel.org
Cc: linux-kernel@...r.kernel.org

---
Changes in v4:
- Update commit messages.
- Update base commit.
- Update the format of the node mdss_dp3_out.
- Add comments to clarify certain nodes.
- Update the configuration of regulator-wcn-3p3 from regulator-boot-on to regulator-always-on.
- Link to v3: https://lore.kernel.org/r/20250729-hamoa_initial-v3-0-806e092789dc@oss.qualcomm.com

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

 Documentation/devicetree/bindings/arm/qcom.yaml |   6 +
 arch/arm64/boot/dts/qcom/Makefile               |   1 +
 arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts      | 988 ++++++++++++++++++++++++
 arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi     | 609 +++++++++++++++
 drivers/firmware/qcom/qcom_scm.c                |   1 +
 5 files changed, 1605 insertions(+)
---
base-commit: e5955126d3836714f2071a86329e682e3f75872b
change-id: 20250604-hamoa_initial-0cd7036d7271
prerequisite-message-id: <20250724-move-edp-endpoints-v1-3-6ca569812838@....qualcomm.com>
prerequisite-patch-id: c536bf9ec7fd22af9b05b695272997615dfd675f
prerequisite-patch-id: d513e5a08d3be585b9b6a737ef3a1ad275d7caad
prerequisite-patch-id: 605ef6f89dd84f810df11be9d11ee6803a6bf289
prerequisite-patch-id: 2ab2430624acbdd9011f6c0c2a77469fd19fc75a
prerequisite-patch-id: bfbb562513763ce75f2bb5da7f12e7b54ff3919d

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


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