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From:   Vignesh Viswanathan <quic_viswanat@quicinc.com>
To:     <agross@kernel.org>, <andersson@kernel.org>,
        <konrad.dybcio@linaro.org>, <lee@kernel.org>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <conor+dt@kernel.org>,
        <linux-arm-msm@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>
CC:     <quic_kathirav@quicinc.com>, <quic_anusha@quicinc.com>,
        <quic_sjaganat@quicinc.com>, <quic_srichara@quicinc.com>,
        <quic_varada@quicinc.com>,
        Vignesh Viswanathan <quic_viswanat@quicinc.com>
Subject: [PATCH 2/3] arm64: dts: qcom: enable the download mode support
Date:   Fri, 26 May 2023 16:36:52 +0530
Message-ID: <20230526110653.27777-3-quic_viswanat@quicinc.com>
In-Reply-To: <20230526110653.27777-1-quic_viswanat@quicinc.com>
References: <20230526110653.27777-1-quic_viswanat@quicinc.com>
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Like any other Qualcomm SoCs, IPQ8074 and IPQ6018 also supports the
download mode to collect the RAM dumps if system crashes, to perform
the post mortem analysis. Add support for the same.

Signed-off-by: Vignesh Viswanathan <quic_viswanat@quicinc.com>
---
 arch/arm64/boot/dts/qcom/ipq6018.dtsi | 1 +
 arch/arm64/boot/dts/qcom/ipq8074.dtsi | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/ipq6018.dtsi b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
index f531797f2619..2d77a8336111 100644
--- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
@@ -91,6 +91,7 @@ L2_0: l2-cache {
 	firmware {
 		scm {
 			compatible = "qcom,scm-ipq6018", "qcom,scm";
+			qcom,dload-mode = <&tcsr 0x6100>;
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
index 5b2c1986c8f4..00e559de00fb 100644
--- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
@@ -103,6 +103,7 @@ memory@4ac00000 {
 	firmware {
 		scm {
 			compatible = "qcom,scm-ipq8074", "qcom,scm";
+			qcom,dload-mode = <&tcsr 0x6100>;
 		};
 	};
 
@@ -382,6 +383,11 @@ tcsr_mutex: hwlock@1905000 {
 			#hwlock-cells = <1>;
 		};
 
+		tcsr: syscon@1937000 {
+			compatible = "qcom,tcsr-ipq8074", "syscon";
+			reg = <0x01937000 0x21000>;
+		};
+
 		spmi_bus: spmi@200f000 {
 			compatible = "qcom,spmi-pmic-arb";
 			reg = <0x0200f000 0x001000>,
-- 
2.40.1