> Just to be more precise qca807x can operate in 3 different mode: > (this is controlled by the MODE_CFG bits) > - QSGMII: 5 copper port 4 slots over QSGMII, plus the second SERDES is connected to the MAC using SGMII/1000BaseX? > - PSGMII: 5 copper port 5 slots over QSGMII, the second SERDES is idle? > - PSGMII: 4 copper port + 1 combo (that can be both fiber or copper) 5 slots over QSGMII, with the second SERDES connected to an SFP cage. Are ports 1-4 always connected to the P/Q SGMII. Its only port 5 which can use the second SERDES? Does changing between QSGMII and PSGMII really change the protocol run over the multiplex link? The clock rate is slower, there are only 4 multiplexed slots vs five? Or does it keep using PSGMII and leaves one slot I can see how it is messy to validate, if you only have phy-mode. So maybe MODE_CFG is a package property. You then can validate the phy-mode against MODE_CFG. Andrew
