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[qcom-next] arm: dts: qcs6490-rb3gen2: drop pil_reserved_mem reservation - #124

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balajiselvanathan:qc/qcs6490-drop-pil-reserved-mem
Aug 21, 2026
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[qcom-next] arm: dts: qcs6490-rb3gen2: drop pil_reserved_mem reservation#124
varada-qcom merged 1 commit into
qualcomm-linux:qcom-nextfrom
balajiselvanathan:qc/qcs6490-drop-pil-reserved-mem

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The pil-reserved@84300000 node is a coarse 363 MiB carveout inherited from the downstream kernel. The upstream qcs6490-rb3gen2 board DTS already reserves the firmware-bearing parts of that range with fine-grained per-subsystem nodes (camera, wpss, adsp, cdsp, video, cvp, ipa and gpu-microcode), which cover 0x84300000 up to 0x8b31c000 contiguously. The remaining span of the blanket holds no firmware and does not need reserving in U-Boot.

Drop the redundant blanket node so U-Boot can use the DRAM the per-subsystem reservations don't claim.

This is downstream changes, so upstream is not applicable.

The pil-reserved@84300000 node is a coarse 363 MiB carveout inherited
from the downstream kernel. The upstream qcs6490-rb3gen2 board DTS
already reserves the firmware-bearing parts of that range with
fine-grained per-subsystem nodes (camera, wpss, adsp, cdsp, video,
cvp, ipa and gpu-microcode), which cover 0x84300000 up to 0x8b31c000
contiguously. The remaining span of the blanket holds no firmware and
does not need reserving in U-Boot.

Drop the redundant blanket node so U-Boot can use the DRAM the
per-subsystem reservations don't claim.

Signed-off-by: Balaji Selvanathan <balaji.selvanathan@oss.qualcomm.com>
@varada-qcom
varada-qcom merged commit b676654 into qualcomm-linux:qcom-next Aug 21, 2026
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