From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Krishna Chaitanya Chundru <krishna.chundru@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 <mani@kernel.org>,
Bartosz Golaszewski <brgl@kernel.org>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
linux-pm@vger.kernel.org
Subject: Re: [PATCH v2 2/2] arm64: dts: qcom: eliza-evk: Add PCIe1 with TC9563 PCIe switch
Date: Wed, 8 Jul 2026 15:16:31 +0200 [thread overview]
Message-ID: <5bfb3aea-4836-488b-aaa9-ad770baa9c95@oss.qualcomm.com> (raw)
In-Reply-To: <20260708-eliza_evk-v2-2-c599246ceba1@oss.qualcomm.com>
On 7/8/26 8:17 AM, Krishna Chaitanya Chundru wrote:
> The Eliza EVK board connects PCIe1 (8GT/s x2) to a Toshiba TC9563
> PCIe switch. Enable PCIe1 and its QMP PHY nodes.
>
> TC9563 uses I2C (at address 0x77 on I2C4) for its management interface.
>
> Override the base iommu-map with the expanded set covering all the
> switch's downstream ports (0x1400-0x1408 SID range).
>
> The TC9563 RESX# and PERST# are OR-ed internally to assert reset on the
> switch. Use TC9563 RESX# pin via a TLMM GPIO and skip wiring PERST#
> from the PCIe controller.
>
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
next prev parent reply other threads:[~2026-07-08 13:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-08 6:17 [PATCH v2 0/2] arm64: dts: qcom: eliza-evk: Enable PCIe0 and PCIe1 with M.2 and TC9563 switch Krishna Chaitanya Chundru
2026-07-08 6:17 ` [PATCH v2 1/2] arm64: dts: qcom: eliza-evk: Add PCIe0 with M.2 E key connector Krishna Chaitanya Chundru
2026-07-09 13:06 ` Manivannan Sadhasivam
2026-07-08 6:17 ` [PATCH v2 2/2] arm64: dts: qcom: eliza-evk: Add PCIe1 with TC9563 PCIe switch Krishna Chaitanya Chundru
2026-07-08 13:16 ` Konrad Dybcio [this message]
2026-07-09 13:07 ` Manivannan Sadhasivam
2026-07-08 15:35 ` [PATCH v2 0/2] arm64: dts: qcom: eliza-evk: Enable PCIe0 and PCIe1 with M.2 and TC9563 switch Bjorn Andersson
2026-07-09 5:55 ` Krishna Chaitanya Chundru
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