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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-314bc4164ddsm32845204eec.9.2026.07.27.08.47.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Jul 2026 08:47:52 -0700 (PDT) From: Kathiravan Thirumoorthy Date: Mon, 27 Jul 2026 21:17:36 +0530 Subject: [PATCH v11 2/3] arm64: dts: qcom: ipq5424: Add the IMEM node Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260727-wdt_reset_reason-v11-2-eeedb22beefe@oss.qualcomm.com> References: <20260727-wdt_reset_reason-v11-0-eeedb22beefe@oss.qualcomm.com> In-Reply-To: <20260727-wdt_reset_reason-v11-0-eeedb22beefe@oss.qualcomm.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Kathiravan Thirumoorthy , Dmitry Baryshkov , Konrad Dybcio X-Mailer: b4 0.15.2 X-Authority-Analysis: v=2.4 cv=eYQNubEH c=1 sm=1 tr=0 ts=6a677da9 cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=EUspDBNiAAAA:8 a=QDJorwyCwNfNgOuVDpwA:9 a=QEXdDO2ut3YA:10 a=_Vgx9l1VpLgwpw_dHYaR:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzI3MDE0OCBTYWx0ZWRfX+sAfNCeJ4Vq9 K5Q8Qp6ggQKaretZxlHYdnnxbvscyl3VA2LY6C3z7rZvdiD5VQjagMwajxRbf9Zj65Ija61uSHD iWZFHsbln5oTE5mhDD3/vAaLWqBhvGs= X-Proofpoint-ORIG-GUID: Bj3sFw9l-sEmuXbVeWwWpP4npyeIqFxl X-Proofpoint-GUID: Bj3sFw9l-sEmuXbVeWwWpP4npyeIqFxl X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzI3MDE0OCBTYWx0ZWRfXyHhFRfI6OYbk yo08pYZB95UEKhLSdqZseVLET+CSVgrCzxcQxqRJKupaqt/irnoxU43VYMGViwsiXoXkZF/SVeL ApacWX5lT1xQVGvTHYzd41SBxooQWqLdqr4lbCopxSDkf3YqG0jxeRvLhJpod9jjBSmAQQGB4q8 Ox4v0SC5GbH+ZugYGBfpteFnK3obhn6pMLMIxmfbsim6ls4f+GzmHZRBMjvuVknp08+wD7S1i7R 4ERxZn9UuqjePdA0MNbifQqhz37ruhXwlAZMEWemxWs64wlyfpmJJMDuXEEbY6PjJa65JFDSQTh OVSqL+5UxCUSRb1uua4Tl43DgG58zf73Pf0QfNalCLkXUdKNwUGEUvMVOSfDrjYdPqhl1tMurFT LbTpev8uBK2du3KVzk92WI1lUfCxoJIhln+T6EHxNV/pLUXkvVA4HTyPjPdQt6NlzKU18KC2asS A35d13s6WoLi4Q+nubw== 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=2026-07-27_04,2026-07-24_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 suspectscore=0 spamscore=0 adultscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 impostorscore=0 malwarescore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607270148 Add the IMEM node to the device tree to extract debugging information like system restart reason, which is populated via IMEM. Define the IMEM region to enable this functionality. As described, overall IMEM region is 112KB but only initial 4KB is accessible by all masters in the SoC. Reviewed-by: Dmitry Baryshkov Reviewed-by: Konrad Dybcio Signed-off-by: Kathiravan Thirumoorthy --- arch/arm64/boot/dts/qcom/ipq5424.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/ipq5424.dtsi b/arch/arm64/boot/dts/qcom/ipq5424.dtsi index 702061e16a58..ed61db0749f8 100644 --- a/arch/arm64/boot/dts/qcom/ipq5424.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq5424.dtsi @@ -730,6 +730,17 @@ ssphy_0: phy@7d000 { status = "disabled"; }; + sram@8600000 { + compatible = "qcom,ipq5424-imem", "mmio-sram"; + reg = <0 0x08600000 0 0x1c000>; + ranges = <0 0 0x08600000 0x1c000>; + + no-memory-wc; + + #address-cells = <1>; + #size-cells = <1>; + }; + usb3: usb3@8af8800 { compatible = "qcom,ipq5424-dwc3", "qcom,dwc3"; reg = <0 0x08af8800 0 0x400>; -- 2.34.1