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Tue, 28 Jul 2026 01:08:15 -0700 (PDT) X-Received: by 2002:a05:620a:a01b:b0:931:23a:83ca with SMTP id af79cd13be357-933027200admr143511085a.4.1785226094885; Tue, 28 Jul 2026 01:08:14 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c1c32a798a5sm720897566b.9.2026.07.28.01.08.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 28 Jul 2026 01:08:13 -0700 (PDT) Message-ID: <3e5470ae-887a-45be-963f-ee3ab10d36d0@oss.qualcomm.com> Date: Tue, 28 Jul 2026 10:08:11 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 3/3] arm64: dts: qcom: eliza-evk: Add PCIe1 with TC9563 PCIe switch To: Krishna Chaitanya Chundru , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Manivannan Sadhasivam , Bartosz Golaszewski 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 References: <20260728-eliza_evk-v4-0-decc7fe5246e@oss.qualcomm.com> <20260728-eliza_evk-v4-3-decc7fe5246e@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260728-eliza_evk-v4-3-decc7fe5246e@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwNzI4MDA2OSBTYWx0ZWRfX2vy3ssDnBYUZ mfOvJ2q71OMhdP0FTCyb5VpAW8049jq1BAPnwkt/f3AvBFhiVQDWflgMC8tLNJd24pS9v4R7r+A nmSn4rKlhk83i63QOP/eIVFHSXH4JX8= X-Proofpoint-GUID: Izkr7r8N63pDTHuRFQINs1HEX12CJIF1 X-Proofpoint-ORIG-GUID: Izkr7r8N63pDTHuRFQINs1HEX12CJIF1 X-Authority-Analysis: v=2.4 cv=KLJqylFo c=1 sm=1 tr=0 ts=6a686370 cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=EUspDBNiAAAA:8 a=6pHcnep46kEejBPVP2gA:9 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzI4MDA2OSBTYWx0ZWRfX16OH15PHYsMS 3AmQmrH1eQsTdFJP7+sUDn1EyxTNQLAEauawULSQWHZuGooGagAVWOjqo7+TS1u7NP4vuLkfv6j Ww9qP441HoHPp8mMAyCceF+IVLrC3R76z2WjttYHDXm0YcpNP+lmEtTMdjfad1I/coCXBOgIDtb Ibt4Cw/2vNtBiHhQzc04yriy+kFzPS9uzglayPYs9lRaz0cs6Hv9vPBDaMvumhXhiFNnLcNSb+F NXo+4HWJNVCuEoKory5dulFt6wX3YQlcv9yHGEBYpNFRErwENS26BIY4FJwJ2beP672U5mcpzOV /ogxMpGQfbuQcHSDaTIuxKzeFKS7fYMvagDOxy60TfqXHiVKQpkh4MQ7wrx7FkE+1MtwAhtVHp5 39ODU8oN683dpv0d7kkNjs7GfFBCM4vP4ZKxH6pc/I/IkbN+g38w+ZB2L4eg8CiAdvULnU4/SIs zh6UFLJjgV0uJ/dG3kA== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-28_02,2026-07-27_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 suspectscore=0 spamscore=0 impostorscore=0 lowpriorityscore=0 malwarescore=0 adultscore=0 bulkscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607280069 On 7/28/26 9:06 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 > --- Reviewed-by: Konrad Dybcio Konrad