Re: [PATCH v2 1/2] arm64: dts: socfpga: Enable the SMMU for SoCFPGA device trees

[Krzysztof Kozlowski <krzk@kernel.org>]

On 15/05/2026 10:00, muhammad.nazim.amirul.nazle.asmade@altera.com wrote:
> From: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@altera.com>
> 
> Enable the SMMU on the SoCFPGA board device trees where it was
> missing. The SoC uses a different memory-mapped base address for
> its peripherals, which requires the System Memory Management Unit
> (SMMU) to be active so that the Secure Device Manager (SDM) can
> correctly access those regions through address translation.
> 
> Signed-off-by: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@altera.com>
> ---
> Changes in v2:
> - Move SMMU enable into the base DTSI file instead of individual DTS files
> 
>  arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi b/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
> index b06c6d5d60ee..64f3739a0c33 100644
> --- a/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
> +++ b/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
> @@ -385,7 +385,7 @@ smmu: iommu@16000000 {
>  			interrupt-names = "eventq", "gerror", "priq";
>  			dma-coherent;
>  			#iommu-cells = <1>;
> -			status = "disabled";
> +			status = "okay";

Which file disabled it?

Best regards,
Krzysztof