linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Florian Fainelli <f.fainelli@gmail.com>
To: Daniel Walker <danielwa@cisco.com>,
	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Jose Abreu <joabreu@synopsys.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Russell King <linux@armlinux.org.uk>
Cc: Balamurugan Selvarajan <balamsel@cisco.com>,
	xe-linux-external@cisco.com,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [RFC-PATCH] net: stmmac: Add KR port support.
Date: Thu, 29 Jul 2021 17:10:45 -0700	[thread overview]
Message-ID: <81fca68f-e0c4-ce02-6b2b-e5c22a0c3152@gmail.com> (raw)
In-Reply-To: <20210729234443.1713722-1-danielwa@cisco.com>

On 7/29/21 4:44 PM, Daniel Walker wrote:
> From: Balamurugan Selvarajan <balamsel@cisco.com>
> 
> 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 <balamsel@cisco.com>
> Signed-off-by: Daniel Walker <danielwa@cisco.com>

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

  reply	other threads:[~2021-07-30  0:11 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-29 23:44 Daniel Walker
2021-07-30  0:10 ` Florian Fainelli [this message]
2021-07-30  3:01 ` Andrew Lunn
2021-07-30 14:48   ` Daniel Walker
2021-07-31  2:29     ` Andrew Lunn
2021-07-30 15:11 ` Russell King (Oracle)

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=81fca68f-e0c4-ce02-6b2b-e5c22a0c3152@gmail.com \
    --to=f.fainelli@gmail.com \
    --cc=alexandre.torgue@foss.st.com \
    --cc=balamsel@cisco.com \
    --cc=danielwa@cisco.com \
    --cc=davem@davemloft.net \
    --cc=joabreu@synopsys.com \
    --cc=kuba@kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-stm32@st-md-mailman.stormreply.com \
    --cc=linux@armlinux.org.uk \
    --cc=mcoquelin.stm32@gmail.com \
    --cc=netdev@vger.kernel.org \
    --cc=peppe.cavallaro@st.com \
    --cc=xe-linux-external@cisco.com \
    --subject='Re: [RFC-PATCH] net: stmmac: Add KR port support.' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).