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net: add MDIO_MUX DM class

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Adds a class for MDIO MUXes, which control access to a series of
downstream child MDIOs.
MDIO MUX drivers are required to implement a select function used to switch
between child buses.
MUX children are registered as MDIO buses and they can be used just like
regular MDIOs.

Signed-off-by: Alex Marginean <alexm.osslist@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Alex Marginean
2019-07-12 10:13:50 +03:00
committed by Joe Hershberger
parent c38ac2893c
commit 8880edba06
5 changed files with 266 additions and 0 deletions
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12
drivers/net/Kconfig
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@@ -24,6 +24,18 @@ config DM_MDIO
This is currently implemented in net/mdio-uclass.c
Look in include/miiphy.h for details.
config DM_MDIO_MUX
bool "Enable Driver Model for MDIO MUX devices"
depends on DM_MDIO
help
Enable driver model for MDIO MUX devices
Adds UCLASS_MDIO_MUX DM class supporting MDIO MUXes. Useful for
systems that support DM_MDIO and integrate one or multiple muxes on
the MDIO bus.
This is currently implemented in net/mdio-mux-uclass.c
Look in include/miiphy.h for details.
config MDIO_SANDBOX
depends on DM_MDIO && SANDBOX
default y