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([2405:201:c409:b03f:7465:278f:83b:3aef]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c6e52fd0c81sm4897105a12.4.2026.02.15.06.19.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 15 Feb 2026 06:19:18 -0800 (PST) Message-ID: Date: Sun, 15 Feb 2026 19:49:12 +0530 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 2/2] arm64: dts: qcom: qcs6490-rb3gen2-industrial-mezzanine: Add second TC9563 PCIe switch node for PCIe1 To: Konrad Dybcio , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Dmitry Baryshkov References: <20260212-industrial-mezzanine-pcie-v3-0-1e152937a76a@oss.qualcomm.com> <20260212-industrial-mezzanine-pcie-v3-2-1e152937a76a@oss.qualcomm.com> <97af21d5-7457-4dc1-bd47-2e34e6df094e@oss.qualcomm.com> Content-Language: en-US From: Sushrut Shree Trivedi In-Reply-To: <97af21d5-7457-4dc1-bd47-2e34e6df094e@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjE1MDExNyBTYWx0ZWRfX9jKsuapQPKHn CmT3/czgL0fyacrRh9uqBVYeZdkudBHmKvHNFTU/Nj01hwnBzM8NrW9sqIqrS1II/6srW5j5Qnl k442K9bllmudtkE1hikKDIM98nKBnKExO0p1B0gSNn61v73kFNrElSqjKTDie2j6evbXtbvLjZQ ta/Kzw16S0ESH8dTvi7ChqUJfJiNGE4TVZbm2ufhbm/vMVeAabQanNnIDODM2QHjkVMJ8r7oXZt Lg3VIi2WS3AWZ7yO/AdA3xdF70XygHjHjQJD8pos0TqlI+mLytyqQmdpA9PQE+2e54FtohBoCgJ mNcXhMwT4sYqj51CtPxhjVSEkGZdBmoj084MPg8V3t9GPE6scRVJJ0Ldswv7Zm4vhrEWTIbeZ03 5wRZujMMCN0QA4pDE83Wzs+yLhXEV+LDi8UZf5xBUhk3rWVdhYHf8FAMQqpKxzthUDEWfF1/h0l MZQoBq9K75gXfdluCIw== X-Proofpoint-ORIG-GUID: Y9pe3MH4ktV05chhK1ow8zBUSCqfLUnm X-Authority-Analysis: v=2.4 cv=DJOCIiNb c=1 sm=1 tr=0 ts=6991d5e7 cx=c_pps a=JL+w9abYAAE89/QcEU+0QA==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=EUspDBNiAAAA:8 a=84ae-n4OvFXSi56mcEoA:9 a=QEXdDO2ut3YA:10 a=324X-CrmTo6CU4MGRt3R:22 X-Proofpoint-GUID: Y9pe3MH4ktV05chhK1ow8zBUSCqfLUnm X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-15_05,2026-02-13_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 lowpriorityscore=0 adultscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602150117 On 2/12/2026 5:16 PM, Konrad Dybcio wrote: > On 2/12/26 11:44 AM, Sushrut Shree Trivedi wrote: >> Add a node for the second TC9563 PCIe switch on PCIe1, which is connected >> in cascade to the first TC9563 switch via the former's downstream port. >> >> Two embedded Ethernet devices are present on one of the downstream >> ports of this second switch as well. All the ports present in the >> node represent the downstream ports and embedded endpoints. >> >> The second TC9563 is powered up via the same LDO regulators as the first >> one, and these can be controlled via two GPIOs, which are already present >> as fixed regulators. This TC9563 can also be configured through I2C. >> >> Signed-off-by: Sushrut Shree Trivedi >> --- >> +&pcie1 { >> + iommu-map = <0x0 &apps_smmu 0x1c80 0x1>, >> + <0x100 &apps_smmu 0x1c81 0x1>, >> + <0x208 &apps_smmu 0x1c84 0x1>, >> + <0x210 &apps_smmu 0x1c85 0x1>, >> + <0x218 &apps_smmu 0x1c86 0x1>, >> + <0x300 &apps_smmu 0x1c87 0x1>, >> + <0x408 &apps_smmu 0x1c90 0x1>, >> + <0x410 &apps_smmu 0x1c91 0x1>, >> + <0x418 &apps_smmu 0x1c92 0x1>, >> + <0x500 &apps_smmu 0x1c93 0x1>, >> + <0x600 &apps_smmu 0x1c94 0x1>, >> + <0x700 &apps_smmu 0x1c95 0x1>, >> + <0x701 &apps_smmu 0x1c96 0x1>, >> + <0x800 &apps_smmu 0x1c97 0x1>, >> + <0x900 &apps_smmu 0x1c98 0x1>, >> + <0x901 &apps_smmu 0x1c99 0x1>; > This map is not just an extension of the existing one - is that > intentional? Yeah, I created a new map just for readability. Should I instead just add new mappings and keep the older core-kit map intact ? > > Konrad