linux-kernel - [PATCH V2 1/2] arm64: dts: qcom: ipq5332: enable the download mode support

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Message-ID: <20230210060401.24383-2-quic_kathirav@quicinc.com>
Date:   Fri, 10 Feb 2023 11:34:00 +0530
From:   Kathiravan T <quic_kathirav@...cinc.com>
To:     <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <lee@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     <quic_varada@...cinc.com>, <quic_srichara@...cinc.com>,
        Kathiravan T <quic_kathirav@...cinc.com>
Subject: [PATCH V2 1/2] arm64: dts: qcom: ipq5332: enable the download mode support

Enable the support for download mode to collect the RAM dumps if
system crashes, to perform the post mortem analysis.

Signed-off-by: Kathiravan T <quic_kathirav@...cinc.com>
---
Changes in V2:
	- Mapped the entire TCSR_REGS region and updated the offset in
	  qcom,dload-mode property

 arch/arm64/boot/dts/qcom/ipq5332.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/ipq5332.dtsi b/arch/arm64/boot/dts/qcom/ipq5332.dtsi
index bdf33ef30e10..ad6481dd57ba 100644
--- a/arch/arm64/boot/dts/qcom/ipq5332.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq5332.dtsi
@@ -70,6 +70,7 @@
 	firmware {
 		scm {
 			compatible = "qcom,scm-ipq5332", "qcom,scm";
+			qcom,dload-mode = <&tcsr 0x6100>;
 		};
 	};
 
@@ -142,6 +143,11 @@
 				 <0>;
 		};
 
+		tcsr: syscon@...7000 {
+			compatible = "qcom,tcsr-ipq5332", "syscon";
+			reg = <0x01937000 0x21000>;
+		};
+
 		sdhc: mmc@...4000 {
 			compatible = "qcom,ipq5332-sdhci", "qcom,sdhci-msm-v5";
 			reg = <0x07804000 0x1000>, <0x07805000 0x1000>;
-- 
2.17.1