Re: (subset) [PATCH v8 0/5] PCI: dwc: Add ECAM support with iATU configuration

[Krishna Chaitanya Chundru]

On 10/28/2025 4:07 AM, Bjorn Andersson wrote:
> On Thu, 28 Aug 2025 13:04:21 +0530, Krishna Chaitanya Chundru wrote:
> > The current implementation requires iATU for every configuration
> > space access which increases latency & cpu utilization.
> >
> > Designware databook 5.20a, section 3.10.10.3 says about CFG Shift Feature,
> > which shifts/maps the BDF (bits [31:16] of the third header DWORD, which
> > would be matched against the Base and Limit addresses) of the incoming
> > CfgRd0/CfgWr0 down to bits[27:12]of the translated address.
> >
> > [...]
> Applied, thanks!
>
> [1/5] arm64: dts: qcom: sc7280: Increase config size to 256MB for ECAM feature
>        commit: 03e928442d469f7d8dafc549638730647202d9ce

Hi Bjorn,

Can you revert this change, this is regression due to this series due to 
that we have change the logic,
we need to update the dtsi accordingly, I will send a separate for all 
controllers to enable this ECAM feature.

- Krishna Chaitanya.


> Best regards,