Re: [RFC-PATCH] net: stmmac: Add KR port support.
From: Andrew Lunn <andrew@lunn.ch>
Date: 2021-07-30 03:02:15
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lkml, netdev
On Thu, Jul 29, 2021 at 04:44:42PM -0700, Daniel Walker wrote:
From: Balamurugan Selvarajan <redacted> For KR port the mii interface is a chip-to-chip interface without a mechanical connector. So PHY inits are not applicable. In this case MAC is configured to operate at forced speed(1000Mbps) and full duplex. Modified driver to accommodate PHY and NON-PHY mode.
I agree with Florian here. Look at all the in kernel examples of a SoC
MAC connected to an Ethernet switch. Some use rgmii, others 1000BaseX
or higher. But they all follow the same scheme, and don't need
invasive MAC driver changes.
Andrew
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