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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-acaa1ccc2dcsm135479366b.132.2025.04.09.11.41.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 09 Apr 2025 11:41:21 -0700 (PDT) Message-ID: <6298f149-caae-49d0-af68-c3d102d0ef7d@oss.qualcomm.com> Date: Wed, 9 Apr 2025 20:41:19 +0200 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 RFC 2/6] arm64: dts: qcom: ipq5424: Add the IMEM node To: Kathiravan Thirumoorthy , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Wim Van Sebroeck , Guenter Roeck Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org References: <20250408-wdt_reset_reason-v1-0-e6ec30c2c926@oss.qualcomm.com> <20250408-wdt_reset_reason-v1-2-e6ec30c2c926@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20250408-wdt_reset_reason-v1-2-e6ec30c2c926@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: cXafsHmH4LIGFg5fsqbcqtsJbbZYFZkq X-Authority-Analysis: v=2.4 cv=Q4vS452a c=1 sm=1 tr=0 ts=67f6bf53 cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=XR8D0OoHHMoA:10 a=EUspDBNiAAAA:8 a=o4o9nyK-Q1O9M6IKefoA:9 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-GUID: cXafsHmH4LIGFg5fsqbcqtsJbbZYFZkq X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-09_06,2025-04-08_04,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 lowpriorityscore=0 spamscore=0 clxscore=1015 phishscore=0 bulkscore=0 adultscore=0 malwarescore=0 mlxscore=0 suspectscore=0 mlxlogscore=789 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2504090123 On 4/8/25 10:49 AM, Kathiravan Thirumoorthy wrote: > 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. Corresponding DTS and driver > changes will be added incrementally. > > Signed-off-by: Kathiravan Thirumoorthy > --- > arch/arm64/boot/dts/qcom/ipq5424.dtsi | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/ipq5424.dtsi b/arch/arm64/boot/dts/qcom/ipq5424.dtsi > index 5d6ed2172b1bb0a57c593f121f387ec917f42419..a772736f314f46d11c473160c522af4edeb900b7 100644 > --- a/arch/arm64/boot/dts/qcom/ipq5424.dtsi > +++ b/arch/arm64/boot/dts/qcom/ipq5424.dtsi > @@ -486,6 +486,15 @@ ssphy_0: phy@7d000 { > status = "disabled"; > }; > > + sram@8600000 { > + compatible = "qcom,ipq5424-imem", "syscon", "simple-mfd"; > + reg = <0 0x08600000 0 0x1000>; > + ranges = <0 0 0x08600000 0x1000>; It looks like this should be a little longer Konrad