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

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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@xxxxxxxxxxxxxxx>
---
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

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


But then, are they attached or you just creat the same board with
different configuration?
The PCIe Root Port does involve a different FPGA configuration, but depending on the board, daughter cards and possibly cables are also involved.


Best regards,
Krzysztof


Thanks for the feedback,
Matthew Gerlach




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