Re: [PATCH v5 1/7] arm64: dts: qcom: sc7280: Increase config size to 256MB for ECAM feature

[Konrad Dybcio]

On 3/9/25 6:45 AM, Krishna Chaitanya Chundru wrote:
> PCIe ECAM(Enhanced Configuration Access Mechanism) feature requires
> maximum of 256MB configuration space.
> 
> To enable this feature increase configuration space size to 256MB. If
> the config space is increased, the BAR space needs to be truncated as
> it resides in the same location. To avoid the bar space truncation move
> config space, DBI, ELBI, iATU to upper PCIe region and use lower PCIe
> iregion entirely for BAR region.
> 
> This depends on the commit: '10ba0854c5e6 ("PCI: qcom: Disable mirroring
> of DBI and iATU register space in BAR region")'
> 
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@xxxxxxxxxxxxxxxx>
> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>

Konrad