Re: [RFC-PATCH] net: stmmac: Add KR port support.

On 7/29/21 4:44 PM, 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.

Cc: xe-linux-external@cisco.com
Signed-off-by: Balamurugan Selvarajan <redacted>
Signed-off-by: Daniel Walker <redacted>

You are not adding KR support per-se, you are just hacking the driver so
it is happy with an unspecified phy_interface_t value and assuming
1000Mbits/sec, this is not going to work.

Just add KR/backplane properly or use a fixed-link property hardcoded
for 1000Mbits/sec and be done with it with no hacking, which would be
just way better than what is proposed here.
-- 
Florian