linux-kernel - [PATCH 3/6] arm64: dts: qcom: qcm6490-shift-otter: Add missing reserved-memory

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Message-Id: <20250930-otter-further-bringup-v1-3-7fe66f653900@fairphone.com>
Date: Tue, 30 Sep 2025 16:32:21 +0200
From: Luca Weiss <luca.weiss@...rphone.com>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Casey Connolly <casey.connolly@...aro.org>, 
 Alexander Martinz <amartinz@...ftphones.com>
Cc: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Luca Weiss <luca.weiss@...rphone.com>
Subject: [PATCH 3/6] arm64: dts: qcom: qcm6490-shift-otter: Add missing
 reserved-memory

From: Alexander Martinz <amartinz@...ftphones.com>

It seems we also need to reserve a region of 81 MiB called "removed_mem"
otherwise we can easily hit memory errors with higher RAM usage.

Fixes: 249666e34c24 ("arm64: dts: qcom: add QCM6490 SHIFTphone 8")
Signed-off-by: Alexander Martinz <amartinz@...ftphones.com>
Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
---
 arch/arm64/boot/dts/qcom/qcm6490-shift-otter.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcm6490-shift-otter.dts b/arch/arm64/boot/dts/qcom/qcm6490-shift-otter.dts
index 2efcfb631c3683456794b0a0cc5686f00efd329c..ce794ca724db6deb39f7fae47912c3fefe974573 100644
--- a/arch/arm64/boot/dts/qcom/qcm6490-shift-otter.dts
+++ b/arch/arm64/boot/dts/qcom/qcm6490-shift-otter.dts
@@ -118,6 +118,11 @@ cdsp_mem: cdsp@...00000 {
 			no-map;
 		};
 
+		removed_mem: removed@...00000 {
+			reg = <0x0 0xc0000000 0x0 0x5100000>;
+			no-map;
+		};
+
 		rmtfs_mem: rmtfs@...00000 {
 			compatible = "qcom,rmtfs-mem";
 			reg = <0x0 0xf8500000 0x0 0x600000>;

-- 
2.51.0