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arm64: dts: qcom: ipq5424: Add reserved memory for TF-A

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IPQ5424 supports both TZ and TF-A as secure software options and various
DDR sizes. In most cases, TF-A or TZ is loaded at the same memory
location, but in the 256MB DDR configuration TF-A is loaded at a different
region.

So, add the reserved memory node for TF-A and keep it disabled by default.
During bootup, U-Boot will detect which secure software is running and
enable or disable the node accordingly.

Signed-off-by: Vignesh Viswanathan <quic_viswanat@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250812-atf-reserved-mem-v2-1-1adb94a998c1@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Vignesh Viswanathan
2025-08-12 10:22:12 +05:30
committed by Bjorn Andersson
parent 3d7f446472
commit 8517204c98
1 changed files with 6 additions and 0 deletions
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6
arch/arm64/boot/dts/qcom/ipq5424.dtsi
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@@ -211,6 +211,12 @@
hwlocks = <&tcsr_mutex 3>;
};
tfa@8a832000 {
reg = <0x0 0x8a832000 0x0 0x7d000>;
no-map;
status = "disabled";
};
};
soc@0 {