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Revision tags: v00.04.15, v00.04.14, v00.04.13, v00.04.12, v00.04.11, v00.04.10, v00.04.09, v00.04.08, v00.04.07, v00.04.06, v00.04.05, v00.04.04, v00.04.03, v00.04.02, v00.04.01, v00.04.00, v2021.04, v00.03.03, v2021.01, v2020.10, v2020.07, v00.02.13, v2020.04, v2020.01, v2019.10, v00.02.05, v00.02.04, v00.02.03, v00.02.02, v00.02.01, v2019.07, v00.02.00, v2019.04, v2018.07, v2018.03, v2018.01, v2017.11 |
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db40c1aa |
| 23-Mar-2017 |
Hannes Schmelzer <hannes.schmelzer@br-automation.com> |
drivers/net/phy: add fixed-phy / fixed-link support
This patch adds support for having a "fixed-link" to some other MAC
(like some embedded switch-device).
For this purpose we introduce a new phy-d
drivers/net/phy: add fixed-phy / fixed-link support
This patch adds support for having a "fixed-link" to some other MAC
(like some embedded switch-device).
For this purpose we introduce a new phy-driver, called "Fixed PHY".
Fixed PHY works only with CONFIG_DM_ETH enabled, since the fixed-link is
described with a subnode below ethernet interface.
Most ethernet drivers (unfortunately not all are following same scheme
for searching/attaching phys) are calling "phy_connect(...)" for getting
a phy-device.
At this point we link in, we search here for a subnode called "fixed-
link", once found we start phy_device_create(...) with the special phy-
id PHY_FIXED_ID (0xa5a55a5a).
During init the "Fixed PHY" driver has registered with this id and now
gets probed, during probe we get all the details about fixed-link out of
dts, later on the phy reports this values.
Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
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