linux-kernel - Re: [PATCH v7 2/7] dt-bindings: intel: document Agilex PCIe Root Port

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Message-ID: <3894efe9-fb8a-4a6f-bc50-ed54b6f7614d@kernel.org>
Date: Tue, 18 Feb 2025 08:25:39 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: matthew.gerlach@...ux.intel.com
Cc: lpieralisi@...nel.org, kw@...ux.com, manivannan.sadhasivam@...aro.org,
 robh@...nel.org, bhelgaas@...gle.com, krzk+dt@...nel.org,
 conor+dt@...nel.org, dinguyen@...nel.org, joyce.ooi@...el.com,
 linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, matthew.gerlach@...era.com,
 peter.colberg@...era.com
Subject: Re: [PATCH v7 2/7] dt-bindings: intel: document Agilex PCIe Root Port

On 17/02/2025 16:47, matthew.gerlach@...ux.intel.com wrote:
> 
> 
> On Sun, 16 Feb 2025, Krzysztof Kozlowski wrote:
> 
>> On Sat, Feb 15, 2025 at 09:53:54AM -0600, Matthew Gerlach wrote:
>>> The Agilex7f devkit can support PCIe End Points with the appropriate
>>> daughter card.
>>>
>>> Signed-off-by: Matthew Gerlach <matthew.gerlach@...ux.intel.com>
>>> ---
>>> v7:
>>>  - New patch to series.
>>> ---
>>>  Documentation/devicetree/bindings/arm/intel,socfpga.yaml | 1 +
>>>  1 file changed, 1 insertion(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/arm/intel,socfpga.yaml b/Documentation/devicetree/bindings/arm/intel,socfpga.yaml
>>> index 2ee0c740eb56..0da5810c9510 100644
>>> --- a/Documentation/devicetree/bindings/arm/intel,socfpga.yaml
>>> +++ b/Documentation/devicetree/bindings/arm/intel,socfpga.yaml
>>> @@ -20,6 +20,7 @@ properties:
>>>                - intel,n5x-socdk
>>>                - intel,socfpga-agilex-n6000
>>>                - intel,socfpga-agilex-socdk
>>> +              - intel,socfpga-agilex7f-socdk-pcie-root-port
>>
>> Compatible should represent the board, so what is here exactly the
>> board? 7f? Agilex7f? socdk? Or is it standard agilex-socdk but with some
>> things attached?
> 
> The board is the Agilex 7 FPGA F-Series Transceiver-Soc Development Kit:
> https://www.intel.com/content/www/us/en/products/details/fpga/development-kits/agilex/si-agf014.html

Isn't Agilex7 a SoC? I don't see it in the list of compatibles.

> 
> There is not a single, standard agilex-socdk board. There are currently 
> three variants. In addition to the F-Series socdk, there are I-Series and 
> M-Series devkits:
> https://www.intel.com/content/www/us/en/products/details/fpga/development-kits/agilex/si-agi027.html
> https://www.intel.com/content/www/us/en/products/details/fpga/development-kits/agilex/agm039.html

Pages above show distinctive names for the boards, so I am confused why
they are not used.



Best regards,
Krzysztof