dt-bindings: ethernet: eswin: add optional TXD and RXD delay register offsets

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Document two optional cells in eswin,hsp-sp-csr for the TXD and RXD
delay control register offsets.

These registers are used by the driver to clear any residual delay
configuration left by the bootloader, ensuring that MAC-side RGMII delay
settings are applied solely according to the kernel configuration.

Add a reference to the EIC7700X SoC Technical Reference Manual for
background information about the HSP CSR block.

Fixes: 888bd0eca9 ("dt-bindings: ethernet: eswin: Document for EIC7700 SoC")
Signed-off-by: Zhi Li <lizhi2@eswincomputing.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20260518022023.427-1-lizhi2@eswincomputing.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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Zhi Li 2026-05-18 10:20:23 +08:00 • committed by Paolo Abeni

parent 48f6a5356a

commit c36069c6f4

1 changed files with 12 additions and 1 deletions

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Documentation/devicetree/bindings/net/eswin,eic7700-eth.yaml

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