14.09.2015 13:32, Russell King - ARM Linux пишет:
I've been bringing up the mainline kernel on a new board, which has an Marvell SoC with a mvneta interface connected to a Marvell DSA switch. The DSA switch is a 88E6176.In the DT block for the interface, I specify: ethernet@... { phy-mode = "sgmii"; status = "okay"; fixed-link { speed = <1000>; full-duplex; }; }; However, this doesn't work without patching mvneta to disable the autonegotiation and forcing the link up: diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 62e48bc0cb23..e1698731e429 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -1010,6 +1010,10 @@ static void mvneta_defaults_set(struct mvneta_port *pp) val |= MVNETA_GMAC_INBAND_AN_ENABLE | MVNETA_GMAC_AN_SPEED_EN | MVNETA_GMAC_AN_DUPLEX_EN; + /* We appear to need the interface forced for DSA switches */ + val &= ~(MVNETA_GMAC_AN_DUPLEX_EN | + MVNETA_GMAC_AN_SPEED_EN); + val |= MVNETA_GMAC_FORCE_LINK_PASS; mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val); val = mvreg_read(pp, MVNETA_GMAC_CLOCK_DIVIDER); val |= MVNETA_GMAC_1MS_CLOCK_ENABLE;
Hello Russell, just to make sure, aren't you missing this by any chance: https://lkml.org/lkml/2015/7/20/710 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
