diff options
| author | Maxime Chevallier <maxime.chevallier@bootlin.com> | 2023-06-01 16:14:51 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-06-05 09:56:36 +0100 |
| commit | 642af0f92cbe01c4b05eb38a0fe94867a3798b34 (patch) | |
| tree | 02476954314f58e1eb89f23151df3876d6fb4cd2 /drivers/net/mdio/Makefile | |
| parent | f69de8aa4752adae750892c71711a5b806ec0dff (diff) | |
| download | linux-next-642af0f92cbe01c4b05eb38a0fe94867a3798b34.tar.gz linux-next-642af0f92cbe01c4b05eb38a0fe94867a3798b34.zip | |
net: mdio: Introduce a regmap-based mdio driver
There exists several examples today of devices that embed an ethernet
PHY or PCS directly inside an SoC. In this situation, either the device
is controlled through a vendor-specific register set, or sometimes
exposes the standard 802.3 registers that are typically accessed over
MDIO.
As phylib and phylink are designed to use mdiodevices, this driver
allows creating a virtual MDIO bus, that translates mdiodev register
accesses to regmap accesses.
The reason we use regmap is because there are at least 3 such devices
known today, 2 of them are Altera TSE PCS's, memory-mapped, exposed
with a 4-byte stride in stmmac's dwmac-socfpga variant, and a 2-byte
stride in altera-tse. The other one (nxp,sja1110-base-tx-mdio) is
exposed over SPI.
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/mdio/Makefile')
| -rw-r--r-- | drivers/net/mdio/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/mdio/Makefile b/drivers/net/mdio/Makefile index 7d4cb4c11e4e..1015f0db4531 100644 --- a/drivers/net/mdio/Makefile +++ b/drivers/net/mdio/Makefile @@ -19,6 +19,7 @@ obj-$(CONFIG_MDIO_MOXART) += mdio-moxart.o obj-$(CONFIG_MDIO_MSCC_MIIM) += mdio-mscc-miim.o obj-$(CONFIG_MDIO_MVUSB) += mdio-mvusb.o obj-$(CONFIG_MDIO_OCTEON) += mdio-octeon.o +obj-$(CONFIG_MDIO_REGMAP) += mdio-regmap.o obj-$(CONFIG_MDIO_SUN4I) += mdio-sun4i.o obj-$(CONFIG_MDIO_THUNDER) += mdio-thunder.o obj-$(CONFIG_MDIO_XGENE) += mdio-xgene.o |