linux-kernel - [PATCH V7 1/2] arm64: dts: qcom: ipq9574: Enable the download mode support

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Date:   Thu, 11 May 2023 13:28:13 +0530
From:   Poovendhan Selvaraj <quic_poovendh@...cinc.com>
To:     <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <lee@...nel.org>,
        <conor+dt@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
CC:     <quic_srichara@...cinc.com>, <uic_gokulsri@...cinc.com>,
        <quic_sjaganat@...cinc.com>, <quic_kathirav@...cinc.com>,
        <quic_arajkuma@...cinc.com>, <quic_anusha@...cinc.com>,
        <quic_devipriy@...cinc.com>
Subject: [PATCH V7 1/2] arm64: dts: qcom: ipq9574: Enable the download mode support

Enable the support for download mode to collect the crashdumps if
system crashes, to debug crashes extensively.

Signed-off-by: Poovendhan Selvaraj <quic_poovendh@...cinc.com>
---
 arch/arm64/boot/dts/qcom/ipq9574.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
index e2d934fe18c2..ee85258da066 100644
--- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
@@ -69,6 +69,13 @@
 		};
 	};
 
+	firmware {
+		scm {
+			compatible = "qcom,scm-ipq9574", "qcom,scm";
+			qcom,dload-mode = <&tcsr 0x6100>;
+		};
+	};
+
 	memory@...00000 {
 		device_type = "memory";
 		/* We expect the bootloader to fill in the size */
@@ -136,6 +143,11 @@
 			#power-domain-cells = <1>;
 		};
 
+		tcsr: syscon@...7000 {
+			compatible = "qcom,tcsr-ipq9574", "syscon";
+			reg = <0x01937000 0x21000>;
+		};
+
 		sdhc_1: mmc@...4000 {
 			compatible = "qcom,ipq9574-sdhci", "qcom,sdhci-msm-v5";
 			reg = <0x07804000 0x1000>, <0x07805000 0x1000>;
-- 
2.17.1