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arm64: dts: qcom: hamoa: Add remoteproc IOMMUS in EL2 device trees

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All the existing variants Hamoa boards are using Gunyah hypervisor
which means that, so far, Linux-based OS could only boot in EL1 on
those devices. However, it is possible for us to boot Linux at EL2
on these devices [1].

When running under Gunyah, the remote processor firmware IOMMU streams
are controlled by Gunyah. However, without Gunyah, the IOMMU is managed
by the consumer of this DeviceTree. Therefore, describe the firmware
streams for each remote processor.

Add remoteproc IOMMUS to the EL2 device trees to generate the
corresponding -el2.dtb files.

[1]
https://docs.qualcomm.com/bundle/publicresource/topics/80-70020-4/boot-developer-touchpoints.html#uefi

Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Signed-off-by: Xin Liu <xin.liu@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260203063244.1498699-1-xin.liu@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Xin Liu 2026-02-02 22:32:44 -08:00 committed by Bjorn Andersson
parent 5044a0b030
commit 47c88db49f
1 changed files with 8 additions and 0 deletions
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arch/arm64/boot/dts/qcom/x1-el2.dtso
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@ -52,6 +52,14 @@ &pcie_smmu {
status = "okay";
};
&remoteproc_adsp {
iommus = <&apps_smmu 0x1000 0x80>;
};
&remoteproc_cdsp {
iommus = <&apps_smmu 0x0c00 0x0>;
};
/*
* The "SBSA watchdog" is implemented in software in Gunyah
* and can't be used when running in EL2.