Like many other mediatek SOCs, the MT7621 SOC and the internal MT7530 switch both supports TRGMII mode. MT7621 TRGMII speed is 1200MBit.
René van Dorst (2): net: ethernet: mediatek: Add MT7621 TRGMII mode support net: dsa: mt7530: Add MT7621 TRGMII mode support drivers/net/dsa/mt7530.c | 15 ++++++-- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 38 ++++++++++++++++++--- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 11 ++++++ 3 files changed, 58 insertions(+), 6 deletions(-) -- 2.20.1