linux-kernel - [PATCH v10 0/3] qcom: Add support for IQ-9075-evk board

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Message-ID: <20250612155437.146925-1-quic_wasimn@quicinc.com>
Date: Thu, 12 Jun 2025 21:24:31 +0530
From: Wasim Nazir <quic_wasimn@...cinc.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: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@...cinc.com,
        kernel@....qualcomm.com, Wasim Nazir <quic_wasimn@...cinc.com>
Subject: [PATCH v10 0/3] qcom: Add support for IQ-9075-evk board

This series:

Add support for Qualcomm's iq9-evk board using QCS9075 SOC.

QCS9075 is compatible IoT-industrial grade variant of SA8775p SOC.
Unlike QCS9100, it doesn't have safety monitoring feature of
Safety-Island(SAIL) subsystem, which affects thermal management.

In QCS9100 SOC, the safety subsystem monitors all thermal sensors and
does corrective action for each subsystem based on sensor violation
to comply safety standards. But as QCS9075 is non-safe SOC it requires
conventional thermal mitigation for thermal management.
In this series thermal mitigation changes are not included as it needs
more discussion whether to include the change in DT or in drivers.

Below are detailed informations on IQ-9075-evk HW:
------------------------------------------------------
QCS9075 SOM is stacked on top of IQ-9075-evk board.
On top of IQ-9075-evk board additional mezzanine boards can be stacked
in future.
IQ-9075-evk is single board supporting these peripherals:
  - Storage: 2 × 128 GB UFS, micro-SD card, EEPROMs for MACs,
    eMMC on mezzanine card
  - Audio/Video, Camera & Display ports
  - Connectivity: RJ45 2.5GbE, WLAN/Bluetooth, CAN/CAN-FD
  - Sensors: IMU
  - PCIe ports
  - USB & UART ports

Currently basic features are enabled to support 'boot to shell'.

---
Changelog:

v10:
  - Introduce SoC device tree file for qcs9075.
  - Squash new memory map changes to SoC DT file.
  - After moving memory map changes to SoC DT file, the qcs9075-som DT
    file is now empty. Therefore, remove it and move the remaining PMIC
    changes to the board file. Moreover, there is no point in keeping it,
    since it was introduced to accommodate the memory map differences
    which is taken care by SoC DT file.
  - v9-link: [1]

v9:
  - Retain earlier tags from Rob Herring [2] & Krzysztof Kozlowski [3]
  - v8-link: [4]

v8:
  - Squash UFS support [5] into initial board support patch.
  - Remove uart10 pinctrl settings from board, it is moved to sa8775p.dtsi.
  - Arrange ufs nodes in alphabetical order.
  - v7-link: [6]

[1] https://lore.kernel.org/all/20250530092850.631831-1-quic_wasimn@quicinc.com/
[2] https://lore.kernel.org/all/173142574295.951085.7523517676553074543.robh@kernel.org/
[3] https://lore.kernel.org/all/20250430-enlightened-enchanted-jellyfish-7049d0@kuoka/
[4] https://lore.kernel.org/all/20250528122753.3623570-1-quic_wasimn@quicinc.com/
[5] https://lore.kernel.org/all/20250513084309.10275-1-quic_sayalil@quicinc.com/
[6] https://lore.kernel.org/all/20250521140807.3837019-1-quic_wasimn@quicinc.com/

Wasim Nazir (3):
  dt-bindings: arm: qcom: Add bindings for QCS9075 SOC based board
  arm64: dts: qcom: Add qcs9075 IoT SOC devicetree
  arm64: dts: qcom: Add support for qcs9075 IQ-9075-EVK

 .../devicetree/bindings/arm/qcom.yaml         |   7 +
 arch/arm64/boot/dts/qcom/Makefile             |   1 +
 .../boot/dts/qcom/qcs9075-iq-9075-evk.dts     | 290 ++++++++++++++++++
 arch/arm64/boot/dts/qcom/qcs9075.dtsi         | 116 +++++++
 4 files changed, 414 insertions(+)
 create mode 100644 arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts
 create mode 100644 arch/arm64/boot/dts/qcom/qcs9075.dtsi


base-commit: b27cc623e01be9de1580eaa913508b237a7a9673
--
2.49.0