u-boot.git/drivers/net, branch v2023.10

net: sni_netsec: Add workaround for timeout error

2023-09-22T19:54:35+00:00

The NETSEC GMAC occasionally falls into a weird state where
MAC_REG_DESC_SOFT_RST has never been cleared and shows errors like the
below when networking commands are issued:

    => ping 192.168.1.1
    ethernet@522d0000 Waiting for PHY auto negotiation to complete... done
    netsec_wait_while_busy: timeout
    Using ethernet@522d0000 device

    ARP Retry count exceeded; starting again
    ping failed; host 192.168.1.1 is not alive

It happens on not only 'ping' but also 'dhcp', 'tftp' and so on.

Luckily, restarting the NETSEC GMAC and trying again seems to fix the
problematic state. So first ensure that we haven't entered the state by
checking MAC_REG_DESC_SOFT_RST to be cleared; otherwise, restarting
NETSEC/PHY and trying again would work as a workaround.

Signed-off-by: Ryosuke Saito 
Tested-by: Masahisa Kojima

net: mediatek: add support for MediaTek MT7988 SoC

2023-08-03T13:40:50+00:00

This patch adds support for MediaTek MT7988.

MT7988 features MediaTek NETSYS v3, including three GMACs, and two
of them supports 10Gbps USXGMII.

MT7988 embeds a MT7531 switch (not MCM) which supports accessing
internal registers through MMIO instead of MDIO.

Signed-off-by: Weijie Gao

net: mediatek: add support for NETSYS v3

2023-08-03T13:40:50+00:00

This patch adds support for NETSYS v3 hardware.
Comparing to NETSYS v2, NETSYS v3 has three GMACs.

Signed-off-by: Weijie Gao

net: mediatek: add USXGMII support

2023-08-03T13:40:50+00:00

This patch adds support for USXGMII of SoC.

Signed-off-by: Weijie Gao

net: mediatek: add support for GMAC/USB3 PHY mux mode for MT7981

2023-08-03T13:40:50+00:00

MT7981 has its GMAC2 PHY shared with USB3. To enable GMAC2, mux
register must be set to connect the SGMII phy to GMAC2.

Signed-off-by: Weijie Gao

net: mediatek: add support for SGMII 1Gbps auto-negotiation mode

2023-08-03T13:40:50+00:00

Existing SGMII support of mtk-eth is actually a MediaTek-specific
2.5Gbps high-speed SGMII (HSGMII) which does not support
auto-negotiation mode.

This patch adds SGMII 1Gbps auto-negotiation mode and rename the
existing HSGMII to 2500basex.

Signed-off-by: Weijie Gao

net: mediatek: add missing static qualifier

2023-08-03T13:40:50+00:00

mt7531_mmd_ind_read and mt753x_switch_init are defined without static.
Since they're not used outside this file, we should add them back.

Signed-off-by: Weijie Gao 

fixup to add static qualifier

net: mediatek: fix direct MDIO clause 45 access via SoC

2023-08-03T13:40:50+00:00

The original direct MDIO clause 45 access via SoC is missing the
data output. This patch adds it back to ensure MDIO clause 45 can
work properly for external PHYs.

Signed-off-by: Weijie Gao

net: mediatek: optimize the switch reset delay wait time

2023-08-03T13:40:50+00:00

Not all switches requires 1 second delay after deasserting reset.
MT7531 requires only maximum 200ms.

This patch defines dedicated reset wait time for each switch chip, and will
significantly improve the boot time for boards using MT7531.

Signed-off-by: Weijie Gao

net: mediatek: connect switch to PSE only when starting eth is requested

2023-08-03T13:40:50+00:00

So far the switch is initialized in probe stage and is connected to PSE
unconditionally. This will cause all packets being flooded to PSE and may
cause PSE hang before entering linux.

This patch changes the connection between switch and PSE:
- Still initialize switch in probe stage, but disconnect it with PSE
- Connect switch with PSE on eth start
- Disconnect on eth stop

Signed-off-by: Weijie Gao