linux-kernel - [PATCH] arm64: dts: qcom: qcm6490-fairphone-fp5: Add missing reserved-memory

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Message-Id: <20231229-fp5-reserved-mem-v1-1-87bb818f1397@fairphone.com>
Date: Fri, 29 Dec 2023 13:53:17 +0100
From: Luca Weiss <luca.weiss@...rphone.com>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, 
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Luca Weiss <luca.weiss@...rphone.com>
Subject: [PATCH] arm64: dts: qcom: qcm6490-fairphone-fp5: Add missing
 reserved-memory

It seems we also need to reserve a region of 81 MiB called "removed_mem"
otherwise we can easily hit the following error with higher RAM usage:

  [ 1467.809274] Internal error: synchronous external abort: 0000000096000010 [#2] SMP

Fixes: eee9602ad649 ("arm64: dts: qcom: qcm6490: Add device-tree for Fairphone 5")
Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
---
 arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
index 176898c9dbbd..1e85c43a6fd1 100644
--- a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
+++ b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
@@ -82,6 +82,11 @@ cdsp_mem: cdsp@...00000 {
 			no-map;
 		};
 
+		removed_mem: removed@...00000 {
+			reg = <0x0 0xc0000000 0x0 0x5100000>;
+			no-map;
+		};
+
 		rmtfs_mem: memory@...00000 {
 			compatible = "qcom,rmtfs-mem";
 			reg = <0x0 0xf8500000 0x0 0x600000>;

---
base-commit: 39676dfe52331dba909c617f213fdb21015c8d10
change-id: 20231229-fp5-reserved-mem-b88e822b1127

Best regards,
-- 
Luca Weiss <luca.weiss@...rphone.com>