Add support for Airoha PCS driver present on AN7581 SoC.
This is needed to configure the Serdes port for the different PHY mode.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

Add Microsemi/Microchip MDIO driver for interfaces found in their network
switches.

Driver is based on the Linux version.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Acked-by: Jerome Forissier <jerome@forissier.org>

In preparation for support of MDIO on AN7581, move the MT7531 MMIO logic
to a dedicated driver and permit usage of the mdio read/write function
to the mtk_eth driver.

This only affect MT7988 that can use MMIO operation to access the Switch
register. The MT7988 code is updated to make use of the external driver.

This permits Airoha driver to make use of DM_MDIO to bind for the MT7531
driver that have the same exact register.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

As no platforms enable the ethernet driver, remove it.

Signed-off-by: Tom Rini <trini@konsulko.com>

The Designware IP integrated in TH1520 SoC requires extra clock
configuration to operate correctly. The Linux kernel's T-Head DWMAC glue
driver is ported and adapted to U-Boot's API.

Signed-off-by: Yao Zi <ziyao@disroot.org>
Acked-by: Leo Yu-Chi Liang <ycliang@andestech.com>

Make the sandbox mock ethernet driver (drivers/net/sandbox.c) compatible
with NET_LWIP by not relying on any of the structures or functions
defined in net-legacy.h. This is done by providing local definitions of
the various protocol structures (Ethernet, ARP, IPv4, ICMP). Drop the
stub driver that was introduced specifically for NET_LWIP
(drivers/net/sandbox-lwip.c).

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

Add airoha Ethernet driver for Airoha AN7581 SoC. This is a majorly
rewritten and simplified version of the Linux airoha_eth.c driver.

It's has been modified to support a single RX/TX ring to reflect U-Boot
implementation with recv and send API.

The struct and the define are kept as similar as possible to upstream
one to not diverge too much.

The AN7581 SoC include an Ethernet Switch based on the Mediatek MT753x
but doesn't require any modification aside from setting the CPU port and
applying the Flood configuration hence it can be handled entirely in the
Ethernet driver.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

The ADI SC598 includes a Designware QoS 5.20a IP block. This
commit adds support for using the existing ethernet QoS driver
with the SC598 SoC.

Co-developed-by: Ian Roberts <ian.roberts@timesys.com>
Signed-off-by: Ian Roberts <ian.roberts@timesys.com>
Co-developed-by: Nathan Barrett-Morrison <nathan.morrison@timesys.com>
Signed-off-by: Nathan Barrett-Morrison <nathan.morrison@timesys.com>
Signed-off-by: Vasileios Bimpikas <vasileios.bimpikas@analog.com>
Signed-off-by: Utsav Agarwal <utsav.agarwal@analog.com>
Signed-off-by: Arturs Artamonovs <arturs.artamonovs@analog.com>
Signed-off-by: Oliver Gaskell <Oliver.Gaskell@analog.com>
Signed-off-by: Greg Malysa <malysagreg@gmail.com>

Weijie Gao <weijie.gao@mediatek.com> says:

This patch series will split the switch initialization code from mtk_eth
driver into their own files and then add new SoC and switch support.

Link: https://lore.kernel.org/r/cover.1736498083.git.weijie.gao@mediatek.com

mtk_eth.c contains not only the ethernet GMAC/DMA driver, but also
some ethernet switch initialization code. As we may add more switch
support in the future, it's better to move them out of mtk_eth.c to
avoid increasing the code complexity.

Since not all switches are supported for a particular board, Kconfig
options are added to allow user to select which switch should be
built into u-boot. If multiple switches are selected, auto-detecting
can also be enabled.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>