From: Alexander Martinz <amartinz@shiftphones.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@shiftphones.com>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.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@88f00000 {
 			no-map;
 		};
 
+		removed_mem: removed@c0000000 {
+			reg = <0x0 0xc0000000 0x0 0x5100000>;
+			no-map;
+		};
+
 		rmtfs_mem: rmtfs@f8500000 {
 			compatible = "qcom,rmtfs-mem";
 			reg = <0x0 0xf8500000 0x0 0x600000>;

-- 
2.51.0

On 9/30/25 4:32 PM, Luca Weiss wrote:
> From: Alexander Martinz <amartinz@shiftphones.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@shiftphones.com>
> Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad