diff options
| author | Adam Sampson <ats@offog.org> | 2020-11-23 17:47:39 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-30 11:50:52 +0100 |
| commit | 4b008707bac48bcb86f44be74f615aa449fea606 (patch) | |
| tree | 338f523c06e1c2fc5bfaa33d231f6b35f781301f /include/linux/pm_runtime.h | |
| parent | 76c475d5d7881b0796d73d0abd5258a5a8a5d733 (diff) | |
ARM: dts: sun7i: pcduino3-nano: enable RGMII RX/TX delay on PHY
[ Upstream commit a7361b9c4615951f52ffd2b1afa09a1384c7b4e4 ]
The RX/TX delays for the Ethernet PHY on the Linksprite pcDuino 3 Nano
are configured in hardware, using resistors that are populated to pull
the RTL8211E's RXDLY/TXDLY pins low or high as needed.
phy-mode should be set to rgmii-id to reflect this. Previously it was
set to rgmii, which used to work but now results in the delays being
disabled again as a result of the bugfix in commit bbc4d71d6354 ("net:
phy: realtek: fix rtl8211e rx/tx delay config").
Tested on two pcDuino 3 Nano boards purchased in 2015. Without this fix,
Ethernet works unreliably on one board and doesn't work at all on the
other.
Fixes: 061035d456c9 ("ARM: dts: sun7i: Add dts file for pcDuino 3 Nano board")
Signed-off-by: Adam Sampson <ats@offog.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20201123174739.6809-1-ats@offog.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux/pm_runtime.h')
0 files changed, 0 insertions, 0 deletions