linux-kernel - [PATCH 2/2] arm64: dts: qcom: ipq5018: enable the download mode support

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Message-Id: <20250512-ipq5018-syscon-v1-2-eb1ad2414c3c@outlook.com>
Date: Mon, 12 May 2025 18:36:47 +0400
From: George Moussalem via B4 Relay <devnull+george.moussalem.outlook.com@...nel.org>
To: Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 George Moussalem <george.moussalem@...look.com>
Subject: [PATCH 2/2] arm64: dts: qcom: ipq5018: enable the download mode
 support

From: George Moussalem <george.moussalem@...look.com>

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

Signed-off-by: George Moussalem <george.moussalem@...look.com>
---
 arch/arm64/boot/dts/qcom/ipq5018.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/ipq5018.dtsi b/arch/arm64/boot/dts/qcom/ipq5018.dtsi
index 8914f2ef0bc47fda243b19174f77ce73fc10757d..0abb00cfe4ce2f9bdea73deebedad8297f56322c 100644
--- a/arch/arm64/boot/dts/qcom/ipq5018.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq5018.dtsi
@@ -79,6 +79,7 @@ opp-1008000000 {
 	firmware {
 		scm {
 			compatible = "qcom,scm-ipq5018", "qcom,scm";
+			qcom,dload-mode = <&tcsr 0x6100>;
 			qcom,sdi-enabled;
 		};
 	};
@@ -187,6 +188,11 @@ tcsr_mutex: hwlock@...5000 {
 			#hwlock-cells = <1>;
 		};
 
+		tcsr: syscon@...7000 {
+			compatible = "qcom,tcsr-ipq5018", "syscon";
+			reg = <0x01937000 0x21000>;
+		};
+
 		sdhc_1: mmc@...4000 {
 			compatible = "qcom,ipq5018-sdhci", "qcom,sdhci-msm-v5";
 			reg = <0x7804000 0x1000>;

-- 
2.49.0