From: Sushrut Shree Trivedi <sushrut.trivedi@oss.qualcomm.com>
To: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Subject: Re: [PATCH v3 0/2] arm64: dts: qcom: qcs6490-rb3gen2-industrial-mezzanine: Add TC9563 PCIe switch nodes
Date: Tue, 24 Feb 2026 12:03:51 +0530 [thread overview]
Message-ID: <40eb66b5-7f3d-4df5-b6db-719168d85b72@oss.qualcomm.com> (raw)
In-Reply-To: <3c06c3cd-cc10-4e2c-9001-9e0a4174d489@oss.qualcomm.com>
On 2/12/2026 5:18 PM, Konrad Dybcio wrote:
> On 2/12/26 11:44 AM, Sushrut Shree Trivedi wrote:
>> Add nodes for the two additional TC9563 PCIe switches present on the
>> QCOM RB3Gen2 Industrial Mezzanine platform.
>>
>> One of the TC9563 is connected directly to the PCIe0 root-port while
>> the second TC9563 switch is connected in cascade fashion to another
>> already available TC9563 switch on PCIe1 via the former's downstream
>> port (DSP). The final PCIe hierarchy on the Industrial Mezz platform
> ^ +Mani is that PCIe terminology, or is that a Toshiba-ism?
The PCIe Spec actually uses the DSP terminology
under r6.2 sec 7.9.29: Streamlined Virtual Channel
Extended Capability (SVC)
"If the SVC Extended Capability structure is implemented in a
USP containing one or more Switch USP Functions, it must be
implemented in all associated Switch DSP Functions"
Sushrut
>
> Konrad
prev parent reply other threads:[~2026-02-24 6:34 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-12 10:44 [PATCH v3 0/2] arm64: dts: qcom: qcs6490-rb3gen2-industrial-mezzanine: Add TC9563 PCIe switch nodes Sushrut Shree Trivedi
2026-02-12 10:44 ` [PATCH v3 1/2] arm64: dts: qcom: qcs6490-rb3gen2-industrial-mezzanine: Add TC9563 PCIe switch node for PCIe0 Sushrut Shree Trivedi
2026-02-12 11:47 ` Konrad Dybcio
2026-02-13 16:40 ` Dmitry Baryshkov
2026-02-12 10:44 ` [PATCH v3 2/2] arm64: dts: qcom: qcs6490-rb3gen2-industrial-mezzanine: Add second TC9563 PCIe switch node for PCIe1 Sushrut Shree Trivedi
2026-02-12 11:46 ` Konrad Dybcio
2026-02-15 14:19 ` Sushrut Shree Trivedi
2026-02-16 11:28 ` Konrad Dybcio
2026-02-18 10:00 ` Sushrut Shree Trivedi
2026-02-18 10:43 ` Konrad Dybcio
2026-02-18 10:43 ` Konrad Dybcio
2026-02-12 11:48 ` [PATCH v3 0/2] arm64: dts: qcom: qcs6490-rb3gen2-industrial-mezzanine: Add TC9563 PCIe switch nodes Konrad Dybcio
2026-02-24 6:33 ` Sushrut Shree Trivedi [this message]
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