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 <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>

Author: Manikanta Mylavarapu

arch/arm64/boot/dts/qcom/ipq5424.dtsi

@@ -101,6 +101,7 @@
 	firmware {
 		scm {
 			compatible = "qcom,scm-ipq5424", "qcom,scm";
+			qcom,dload-mode = <&tcsr 0x25100>;
 		};
 	};
 
@@ -204,6 +205,11 @@
 			#hwlock-cells = <1>;
 		};
 
+		tcsr: syscon@1937000 {
+			compatible = "qcom,tcsr-ipq5424", "syscon";
+			reg = <0 0x01937000 0 0x2a000>;
+		};
+
 		qupv3: geniqup@1ac0000 {
 			compatible = "qcom,geni-se-qup";
 			reg = <0 0x01ac0000 0 0x2000>;