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From:   Mukesh Ojha <quic_mojha@quicinc.com>
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CC:     <linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
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        "Mukesh Ojha" <quic_mojha@quicinc.com>
Subject: [PATCH v4 16/21] arm64: dts: qcom: sm8450: Add Qualcomm ramoops minidump node
Date:   Wed, 28 Jun 2023 18:04:43 +0530
Message-ID: <1687955688-20809-17-git-send-email-quic_mojha@quicinc.com>
In-Reply-To: <1687955688-20809-1-git-send-email-quic_mojha@quicinc.com>
References: <1687955688-20809-1-git-send-email-quic_mojha@quicinc.com>
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This enable dynamic reserve memory for Qualcomm ramoops device,
which will be used to save ramoops frontend data and this region
gets dumped on crash via Qualcomm's minidump infrastructure.
qcom_pstore_minidump is the associated driver for this node.

Signed-off-by: Mukesh Ojha <quic_mojha@quicinc.com>
---
 arch/arm64/boot/dts/qcom/sm8450.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
index d59ea8ee7111..0b1dedee606b 100644
--- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
@@ -390,6 +390,12 @@
 		};
 	};
 
+	ramoops-minidump {
+		compatible = "qcom,sm8450-ramoops", "qcom,ramoops";
+		console-size = <0x200000>;
+		memory-region = <&qcom_ramoops>;
+	};
+
 	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
@@ -623,6 +629,12 @@
 			reg = <0x0 0xed900000 0x0 0x3b00000>;
 			no-map;
 		};
+
+		qcom_ramoops: ramoops {
+			alloc-ranges = <0x0 0x00000000 0xffffffff 0xffffffff>;
+			size = <0x0 0x200000>;
+			no-map;
+		};
 	};
 
 	smp2p-adsp {
-- 
2.7.4