linux/arch/arm64/boot
Vladimir Oltean 25501d8d3a arm64: dts: lx2160abluebox3: update RGMII delays for sja1105 switch
In the new behavior, the sja1105 driver expects there to be explicit
RGMII delays present on the fixed-link ports, otherwise it will complain
that it falls back to legacy behavior, which is to apply RGMII delays
incorrectly derived from the phy-mode string.

In this case, the legacy behavior of the driver is to apply both RX and
TX delays. To preserve that, add explicit 2 nanosecond delays, which are
identical with what the driver used to add (a 90 degree phase shift).
The delays from the phy-mode are ignored by new kernels (it's still
RGMII as long as it's "rgmii*" something), and the explicit
{rx,tx}-internal-delay-ps properties are ignored by old kernels, so the
change works both ways.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-11-21 10:37:17 +08:00
..
dts arm64: dts: lx2160abluebox3: update RGMII delays for sja1105 switch 2021-11-21 10:37:17 +08:00
.gitignore
install.sh
Makefile arm64: move the (z)install rules to arch/arm64/Makefile 2021-08-03 16:19:03 +01:00