linux-kernel - [PATCH v6 0/4] qcom: Add support for IQ-9075-evk board

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Message-ID: <20250429054906.113317-1-quic_wasimn@quicinc.com>
Date: Tue, 29 Apr 2025 11:19:00 +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 v6 0/4] 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:
------------------------------------------------------
QCS9075M 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:

v6:
  - Splitting v5 and bringing only rb8/IQ-9075-evk changes.
  - IQ-9075-evk is the new marketing/product name for RB8 and files are
    renamed accordingly.
  - Introduce SoM for qcs9075 SoC.
  - Introduce Memory map changes for IQ9 boards, currently enabled
    for qcs9075 based boards only.
  - Remove l4c regulator as it needs more validation with UFS for
    over-current check.
  - Remove thermal mitigation change, needs more discussion for final
    change.
  - v5:
    https://lore.kernel.org/all/20241229152332.3068172-1-quic_wasimn@quicinc.com/

Pratyush Brahma (1):
  arm64: dts: qcom: iq9: Introduce new memory map for qcs9100/qcs9075

Wasim Nazir (3):
  dt-bindings: arm: qcom: Add bindings for QCS9075 SOC based board
  arm64: dts: qcom: qcs9075: Introduce QCS9075M SOM
  arm64: dts: qcom: Add support for qcs9075 IQ-9075-EVK

 .../devicetree/bindings/arm/qcom.yaml         |   8 +
 arch/arm64/boot/dts/qcom/Makefile             |   1 +
 .../boot/dts/qcom/iq9-reserved-memory.dtsi    | 108 +++++++
 .../boot/dts/qcom/qcs9075-iq-9075-evk.dts     | 268 ++++++++++++++++++
 arch/arm64/boot/dts/qcom/qcs9075-som.dtsi     |  10 +
 5 files changed, 395 insertions(+)
 create mode 100644 arch/arm64/boot/dts/qcom/iq9-reserved-memory.dtsi
 create mode 100644 arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts
 create mode 100644 arch/arm64/boot/dts/qcom/qcs9075-som.dtsi


base-commit: 33035b665157558254b3c21c3f049fd728e72368
--
2.49.0