linux-kernel - [PATCH v3 0/2] arm64: dts: qcom: qcs6490: Introduce Radxa Dragon Q6A

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Message-Id: <20250915-radxa-dragon-q6a-v3-0-a6c32d988ed7@radxa.com>
Date: Mon, 15 Sep 2025 09:31:42 +0800
From: Xilin Wu <sophon@...xa.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, Xilin Wu <sophon@...xa.com>, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v3 0/2] arm64: dts: qcom: qcs6490: Introduce Radxa Dragon
 Q6A

Radxa Dragon Q6A (https://docs.radxa.com/en/dragon/q6a) is a single board
computer, based on the Qualcomm QCS6490 platform.

The board ships with a modified version of the Qualcomm Linux boot
firmware, which is stored on the onboard SPI NOR flash. This allows
booting standard EFI-based bootloaders from SD/eMMC/USB/UFS/NVMe. It
supports replaceable UFS 3.1/eMMC modules for easy user upgrades.

The board schematic is available at [1].

Features enabled and working:

- Three USB-A 2.0 ports
- RTL8111K Ethernet connected to PCIe0
- eMMC module
- SD card
- M.2 M-Key 2230 PCIe 3.0 x2
- Headphone jack
- Onboard thermal sensors
- QSPI controller for updating boot firmware
- ADSP remoteproc (Type-C and charging features disabled in firmware)
- CDSP remoteproc (for AI applications using QNN)
- Venus video encode and decode accelerator

Features available with additional DT overlays:
- CSI cameras
- DSI display

Features that will be submitted separately once the required bindings are
merged:

- USB-A 3.0 port
- UFS 3.1 module
- HDMI 2.0 port including audio
- Configurable I2C/SPI/UART from 40-Pin GPIO

ALSA UCM and Audioreach topology patches are available at [2] and [3].

[1]: https://docs.radxa.com/en/dragon/q6a/download
[2]: https://github.com/alsa-project/alsa-ucm-conf/pull/601
[3]: https://github.com/linux-msm/audioreach-topology/pull/24

Signed-off-by: Xilin Wu <sophon@...xa.com>
---
Changes in v3:
- Dropped patches for USB/HDMI, UFS and GPIO.
- Removed Reviewed-by tag from the board DTS patch as it was significantly
  modified.
- Link to v2: https://lore.kernel.org/r/20250914-radxa-dragon-q6a-v2-0-045f7e92b3bb@radxa.com

Changes in v2:
- Move codec before cpu in sound node to get sorted.
- Drop patch dependencies in cover letter
- Separate the changes that have unmet dependencies, and mark them as DNM
- Link to v1: https://lore.kernel.org/r/20250912-radxa-dragon-q6a-v1-0-8ccdbf9cd19b@radxa.com

---
Xilin Wu (2):
      dt-bindings: arm: qcom: Add Radxa Dragon Q6A
      arm64: dts: qcom: qcs6490: Introduce Radxa Dragon Q6A

 Documentation/devicetree/bindings/arm/qcom.yaml    |   1 +
 arch/arm64/boot/dts/qcom/Makefile                  |   1 +
 .../boot/dts/qcom/qcs6490-radxa-dragon-q6a.dts     | 961 +++++++++++++++++++++
 3 files changed, 963 insertions(+)
---
base-commit: 590b221ed4256fd6c34d3dea77aa5bd6e741bbc1
change-id: 20250912-radxa-dragon-q6a-eedcdeaf3e66

Best regards,
-- 
Xilin Wu <sophon@...xa.com>