From: Oleksij Rempel <o.rempel@pengutronix.de>
To: Russell King - ARM Linux admin <linux@armlinux.org.uk>
Cc: Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
netdev@vger.kernel.org, Sascha Hauer <s.hauer@pengutronix.de>,
linux-kernel@vger.kernel.org,
Philippe Schenker <philippe.schenker@toradex.com>,
linux-imx@nxp.com, kernel@pengutronix.de,
David Jander <david@protonic.nl>, Shawn Guo <shawnguo@kernel.org>,
Fabio Estevam <festevam@gmail.com>,
linux-arm-kernel@lists.infradead.org,
Heiner Kallweit <hkallweit1@gmail.com>
Subject: Re: [PATCH v1 5/7] ARM i.MX6q: remove Atheros AR8035 SmartEEE fixup
Date: Mon, 8 Feb 2021 10:20:38 +0100 [thread overview]
Message-ID: <20210208092038.cjmnycyctsapgy7w@pengutronix.de> (raw)
In-Reply-To: <20210203095628.GP1463@shell.armlinux.org.uk>
On Wed, Feb 03, 2021 at 09:56:28AM +0000, Russell King - ARM Linux admin wrote:
> On Wed, Feb 03, 2021 at 10:18:55AM +0100, Oleksij Rempel wrote:
> > This fixup removes the Lpi_en bit.
> >
> > If this patch breaks functionality of your board, use following device
> > tree properties:
> >
> > ethernet-phy@X {
> > reg = <0xX>;
> > eee-broken-1000t;
> > eee-broken-100tx;
> > ....
> > };
>
> That is the historical fix for this problem, but there is a better
> solution now in net-next - configuring the Tw parameter for gigabit
> connections. That solves the random link drop issue when EEE is
> enabled.
Do you mean this properties?
qca,smarteee-tw-us-1g
qca,smarteee-tw-us-100m
Do you have some recommendations, which values can be here used? Are
they same for all MACs? Or, can we calculate this values automatically?
Beside, I have seen this patch: "ARM: dts: imx6qdl-sr-som: fix some
cubox-i platforms"
I had similar issue and it was triggered by the boot loader, which
enabled 60 Ohm on-die termination. The fix was to remove this lines in
the boot loader: wm 32 0x020e07ac 0x00000200 /* 60 Ohm ODT */
> Support for this configuration has only recently been merged into
> net-next and other trees for this merge window, so I ask that you
> hold off at least this patch until the next cycle.
ok.
Regards,
Oleksij
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next prev parent reply other threads:[~2021-02-08 9:22 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-03 9:18 [PATCH v1 0/7] remove different PHY fixups Oleksij Rempel
2021-02-03 9:18 ` [PATCH v1 1/7] ARM i.MX6q: remove PHY fixup for KSZ9031 Oleksij Rempel
2021-02-03 10:24 ` Philippe Schenker
2021-02-03 9:18 ` [PATCH v1 2/7] ARM i.MX6q: remove TX clock delay of ar8031_phy_fixup() Oleksij Rempel
2021-02-03 9:18 ` [PATCH v1 3/7] ARM i.MX6q: remove hand crafted PHY power up in ar8035_phy_fixup() Oleksij Rempel
2021-02-03 9:18 ` [PATCH v1 4/7] ARM i.MX6q: remove clk-out fixup for the Atheros AR8031 and AR8035 PHYs Oleksij Rempel
2021-02-03 9:18 ` [PATCH v1 5/7] ARM i.MX6q: remove Atheros AR8035 SmartEEE fixup Oleksij Rempel
2021-02-03 9:56 ` Russell King - ARM Linux admin
2021-02-08 9:20 ` Oleksij Rempel [this message]
2021-02-08 14:21 ` Russell King - ARM Linux admin
2021-02-03 9:18 ` [PATCH v1 6/7] ARM: imx6sx: remove Atheros AR8031 PHY fixup Oleksij Rempel
2021-02-03 9:18 ` [PATCH v1 7/7] ARM: imx7d: " Oleksij Rempel
2021-02-03 9:28 ` [PATCH v1 0/7] remove different PHY fixups Russell King - ARM Linux admin
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