From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Jiawen Wu <jiawenwu@trustnetic.com>
Cc: 'Simon Horman' <simon.horman@corigine.com>,
kabel@kernel.org, andrew@lunn.ch, hkallweit1@gmail.com,
davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com, netdev@vger.kernel.org
Subject: Re: [PATCH net] net: phy: marvell10g: fix 88x3310 power up
Date: Wed, 19 Jul 2023 09:27:16 +0100 [thread overview]
Message-ID: <ZLeeZMU4HeiHthQ2@shell.armlinux.org.uk> (raw)
In-Reply-To: <01b401d9ba16$aacf75f0$006e61d0$@trustnetic.com>
On Wed, Jul 19, 2023 at 03:57:30PM +0800, Jiawen Wu wrote:
> > According to this read though (which is in get_mactype), the write
> > didn't take effect.
> >
> > If you place a delay of 1ms after phy_clear_bits_mmd() in
> > mv3310_power_up(), does it then work?
>
> Yes, I just experimented, it works well.
Please send a patch adding it, with a comment along the lines of:
/* Sometimes, the power down bit doesn't clear immediately, and
* a read of this register causes the bit not to clear. Delay
* 1ms to allow the PHY to come out of power down mode before
* the next access.
*/
Thanks.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
next prev parent reply other threads:[~2023-07-19 8:27 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-12 6:26 [PATCH net] net: phy: marvell10g: fix 88x3310 power up Jiawen Wu
2023-07-13 10:26 ` Simon Horman
2023-07-13 10:35 ` Russell King (Oracle)
2023-07-13 10:45 ` Simon Horman
2023-07-13 10:53 ` Russell King (Oracle)
2023-07-13 11:30 ` Jiawen Wu
2023-07-13 11:41 ` Russell King (Oracle)
2023-07-13 11:50 ` Jiawen Wu
2023-07-17 10:51 ` Jiawen Wu
2023-07-17 12:22 ` Russell King (Oracle)
2023-07-18 9:12 ` Jiawen Wu
2023-07-18 9:49 ` Russell King (Oracle)
2023-07-18 9:58 ` Jiawen Wu
2023-07-18 11:47 ` Russell King (Oracle)
2023-07-19 2:29 ` Jiawen Wu
2023-07-19 3:53 ` Jiawen Wu
2023-07-19 6:50 ` Russell King (Oracle)
2023-07-19 7:57 ` Jiawen Wu
2023-07-19 8:27 ` Russell King (Oracle) [this message]
2023-07-19 8:38 ` Jiawen Wu
2023-07-19 8:52 ` Russell King (Oracle)
2023-07-13 12:18 ` Simon Horman
2023-07-13 10:46 ` Russell King (Oracle)
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