linux-kernel - [PATCH 2/2] arm64: dts: qcom: ipq5424: enable the download mode support

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Message-ID: <20241204141416.1352545-3-quic_mmanikan@quicinc.com>
Date: Wed, 4 Dec 2024 19:44:16 +0530
From: Manikanta Mylavarapu <quic_mmanikan@...cinc.com>
To: <lee@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <andersson@...nel.org>,
        <konradybcio@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <quic_srichara@...cinc.com>, <quic_varada@...cinc.com>
Subject: [PATCH 2/2] arm64: dts: qcom: ipq5424: enable the download mode support

Enable support for download mode to collect RAM dumps in case
of system crash, facilitating post mortem analysis.

Signed-off-by: Manikanta Mylavarapu <quic_mmanikan@...cinc.com>
---
 arch/arm64/boot/dts/qcom/ipq5424.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/ipq5424.dtsi b/arch/arm64/boot/dts/qcom/ipq5424.dtsi
index 2b9e91da72ac..6226576af155 100644
--- a/arch/arm64/boot/dts/qcom/ipq5424.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq5424.dtsi
@@ -101,6 +101,7 @@ l2_300: l2-cache {
 	firmware {
 		scm {
 			compatible = "qcom,scm-ipq5424", "qcom,scm";
+			qcom,dload-mode = <&tcsr 0x25100>;
 		};
 	};
 
@@ -190,6 +191,11 @@ tcsr_mutex: hwlock@...5000 {
 			#hwlock-cells = <1>;
 		};
 
+		tcsr: syscon@...7000 {
+			compatible = "qcom,tcsr-ipq5424", "syscon";
+			reg = <0 0x01937000 0 0x2a000>;
+		};
+
 		qupv3: geniqup@...0000 {
 			compatible = "qcom,geni-se-qup";
 			reg = <0 0x01ac0000 0 0x2000>;
-- 
2.34.1