netdev - RE: [PATCH v4] net: macb: add support for high speed interface

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Message-ID: <DM5PR07MB31966ACD385290E44A8B960BC11B0@DM5PR07MB3196.namprd07.prod.outlook.com>
Date:   Sat, 24 Oct 2020 10:29:45 +0000
From:   Parshuram Raju Thombare <pthombar@...ence.com>
To:     Russell King - ARM Linux admin <linux@...linux.org.uk>
CC:     "andrew@...n.ch" <andrew@...n.ch>,
        "nicolas.ferre@...rochip.com" <nicolas.ferre@...rochip.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "inux-kernel@...r.kernel.org" <inux-kernel@...r.kernel.org>,
        Milind Parab <mparab@...ence.com>
Subject: RE: [PATCH v4] net: macb: add support for high speed interface


>If we configure 10GBASE-R, then you clear the SGMIIEN bit and then
>enable the HS MAC. Can we go back to non-10GBASE-R after that? Should
>the code reverse those actions here?

Yes, when interface mode changes, SGMIIEN, PCSSEL and ENABLE_HS_MAC
bits need to be programmed accordingly. I will make that modification and
send next version.

Regards,
Parshuram Thombare