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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8f6e9a6a24sm143792066b.20.2026.02.12.01.40.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 12 Feb 2026 01:40:57 -0800 (PST) Message-ID: <84c15561-965e-4915-a4e2-71eeed79fbcd@oss.qualcomm.com> Date: Thu, 12 Feb 2026 10:40:55 +0100 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 v1] arm64: dts: qcom: hamoa-iot-som: Add firmware-name to QUPv3 nodes To: Xueyao An , 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 References: <20260212082558.2811953-1-xueyao.an@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260212082558.2811953-1-xueyao.an@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjEyMDA3MCBTYWx0ZWRfXxMZZPKbpzsnI bRf32b92iBYV0TSuOv3aZ004D1A/YjHwg01PHhDFVpa31+/jSBpgRWbbUe9GnuitfpV+wyYazhb KIWVDC/gUDzvVKP2OOaLX9tzjhPZ8ePjxm3jWb1TAUnkPVDJBhJ5hWTwRvX9FLjHaMvc4lM+x5H 943cSXfjFxtc12tLNLzldd4OdLDs+MG8z+Ld9FOunxq0oDfEmnfIEvErFhiVe9htdiWT+u84vqd QR7Iobn1yzsQz1KgJazTIkhH+Iru6E+aMyZWB5bAUqs9xQd2vehR88UsbVAG7uitlqSi5X8aNRS 4hvW5JxumuFaOtbuzVbdKNCBs0uFp5k8UFpTZLu78HYOv33EAVsXKHzV4gbqmQ1FXrWCvfvmsM+ mnYtbua5weoHTRZFI890nB/2LqYGzlpgVePUR2hJLvOGW3Rb87891FSZIUg45y6Wr60OUCk1C1k GfksFAhmy7+dNTjKRnw== X-Proofpoint-ORIG-GUID: Rh6Nhwoq2bOn8ALl53R8g0BWH1_-zPcF X-Authority-Analysis: v=2.4 cv=dLCrWeZb c=1 sm=1 tr=0 ts=698da02b cx=c_pps a=50t2pK5VMbmlHzFWWp8p/g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 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=B4HikTB3W-0rk1GVoTwA:9 a=QEXdDO2ut3YA:10 a=zZCYzV9kfG8A:10 a=IoWCM6iH3mJn3m4BftBB:22 X-Proofpoint-GUID: Rh6Nhwoq2bOn8ALl53R8g0BWH1_-zPcF 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=2026-02-12_03,2026-02-11_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 phishscore=0 lowpriorityscore=0 adultscore=0 impostorscore=0 priorityscore=1501 spamscore=0 suspectscore=0 clxscore=1015 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602120070 On 2/12/26 9:25 AM, Xueyao An wrote: > Traditionally, firmware loading for Serial Engines (SE) in the QUP hardware > of Qualcomm SoCs has been managed by TrustZone (TZ). While this approach > ensures secure SE assignment and access control, it limits flexibility for > developers who need to enable various protocols on different SEs. > > Add the firmware-name property to QUPv3 nodes in the device tree to enable > firmware loading from the Linux environment. Handle SE assignments and > access control permissions directly within Linux, removing the dependency > on TrustZone. > > Signed-off-by: Xueyao An > --- Reviewed-by: Konrad Dybcio Konrad