From: davem@davemloft.net (David Miller)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] net-next: stmmac: dwmac-sun8i: ensure the EPHY is properly reseted
Date: Mon, 05 Jun 2017 11:23:37 -0400 (EDT) [thread overview]
Message-ID: <20170605.112337.1925463603967545555.davem@davemloft.net> (raw)
In-Reply-To: <20170604175323.62124-1-icenowy@aosc.io>
From: Icenowy Zheng <icenowy@aosc.io>
Date: Mon, 5 Jun 2017 01:53:23 +0800
> The EPHY may be already enabled by bootloaders which have Ethernet
> capability (e.g. current U-Boot). Thus it should be reseted properly
> before doing the enabling sequence in the dwmac-sun8i driver, otherwise
> the EMAC reset process may fail if no cable is plugged, and then fail
> the dwmac-sun8i probing.
>
> Tested on Orange Pi PC, One and Zero. All the boards fail to have
> dwmac-sun8i probed with "EMAC reset timeout" without cable plugged
> before, and with this fix they're now all able to successfully probe the
> EMAC without cable plugged and then use the connection after a cable is
> hot-plugged in.
>
> Fixes: 9f93ac8d408 ("net-next: stmmac: Add dwmac-sun8i")
> Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Applied, thanks.
prev parent reply other threads:[~2017-06-05 15:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-04 17:53 [PATCH] net-next: stmmac: dwmac-sun8i: ensure the EPHY is properly reseted Icenowy Zheng
2017-06-05 11:10 ` [linux-sunxi] " Corentin Labbe
2017-06-05 12:44 ` Andrew Lunn
2017-06-05 14:19 ` David Miller
2017-06-05 15:23 ` David Miller [this message]
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