linux-kernel - Re: [PATCH 0/3] arm64: dts: qcom: qcm6490: Introduce Particle Tachyon

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Message-ID: <2tnzsjw3xy5jct4bcmahcwhjbzlmyxgcx6fzlz5qrzxume2uoy@phpcz6mnydlt>
Date: Thu, 11 Sep 2025 03:01:35 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Bjorn Andersson <bjorn.andersson@....qualcomm.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] arm64: dts: qcom: qcm6490: Introduce Particle Tachyon

On Wed, Sep 10, 2025 at 06:05:36PM -0500, Bjorn Andersson wrote:
> Introduce the Particle Tachyon board (https://www.particle.io/tachyon/),
> a single board compute with 5G connectivity and AI accelerator.
> 
> The boards currently ships with the Android Boot Loader, but replacing
> this with abl2esp allows writing a EFI System Parition and OS partitions
> to all of LUN0, and a more UEFI boot experience. A prebuilt version of
> abl2esp is provided at [1], as abl2esp-v6.elf.
> 
> With a (very) recent version of QDL, a flash programmer from a Tachyon
> software release, and a full distro image, this can be achieved with:
> 
>   qdl prog_firehose_ddr.elf write abl_a abl2esp-v6.elf write abl_b abl2esp-v6.elf write 0 image.raw
> 
> The following firmware files are currently used, on top of what's in
> linux-firmware already:
>   qcom/qcm6490/particle/tachyon/a660_zap.mbn
>   qcom/qcm6490/particle/tachyon/adsp.mbn
>   qcom/qcm6490/particle/tachyon/cdsp.mbn
>   qcom/qcm6490/particle/tachyon/ipa_fws.mbn
>   qcom/qcm6490/particle/tachyon/modem.mbn

Is it locked? Would it be possible to Particle-signed firmware into
linux-firmware?

> 
> In addition to bug fixes that has landed in v6.17-rc this depends on
> [2], which is available in linux-next.
> 
> [1] https://github.com/qualcomm/abl2esp/releases/tag/v1.0
> [2] https://lore.kernel.org/all/20250811-sc7280-mdss-reset-v1-0-83ceff1d48de@oss.qualcomm.com/
> 
> Signed-off-by: Bjorn Andersson <bjorn.andersson@....qualcomm.com>
> ---
> Bjorn Andersson (3):
>       dt-bindings: vendor-prefixes: Add Particle Industries
>       dt-bindings: arm: qcom: Add Particle Tachyon
>       arm64: dts: qcom: qcm6490: Introduce the Particle Tachyon
> 
>  Documentation/devicetree/bindings/arm/qcom.yaml    |   1 +
>  .../devicetree/bindings/vendor-prefixes.yaml       |   2 +
>  arch/arm64/boot/dts/qcom/Makefile                  |   1 +
>  .../boot/dts/qcom/qcm6490-particle-tachyon.dts     | 877 +++++++++++++++++++++
>  4 files changed, 881 insertions(+)
> ---
> base-commit: 5f540c4aade9f1d58fb7b9490b4b7d5214ec9746
> change-id: 20250910-tachyon-e3548941397d
> 
> Best regards,
> -- 
> Bjorn Andersson <bjorn.andersson@....qualcomm.com>
> 

-- 
With best wishes
Dmitry