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

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Message-ID: <nweaxuma3dkhzcc46ztfhmxxrchgidxjprc2tz5eahle6sxsuy@qvczmexs4qnn>
Date: Thu, 11 Sep 2025 14:19:39 -0500
From: Bjorn Andersson <andersson@...nel.org>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: Bjorn Andersson <bjorn.andersson@....qualcomm.com>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...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 Thu, Sep 11, 2025 at 03:01:35AM +0300, Dmitry Baryshkov wrote:
> 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?

It doesn't look that way.

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

That is something that would have to be discussed...

Regards,
Bjorn

> 
> > 
> > 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