Hi Henri, On 10/21/2016 02:19 AM, Henri Roosen wrote: > Hi, > > Unfortunately commit-3ac72b7b63d5 "net: fec: align IP header in > hardware" breaks networking on an iMX28 system. > > The commit seems valid for iMX6, where it is tested okay and solves the > unaligned accesses. > > On iMX28 I still see unaligned accesses and networking is broken. Can > anyone confirm this? >
Reading the i.MX28 reference manual, it appears that this SoC doesn't have the RACC bit, and I missed removal of the FEC_QUIRK_HAS_RACC flag. Can you try with this patch? diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 692ee24..db5eee9 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -96,7 +96,7 @@ static struct platform_device_id fec_devtype[] = { }, { .name = "imx28-fec", .driver_data = FEC_QUIRK_ENET_MAC | FEC_QUIRK_SWAP_FRAME | - FEC_QUIRK_SINGLE_MDIO | FEC_QUIRK_HAS_RACC, + FEC_QUIRK_SINGLE_MDIO, }, { .name = "imx6q-fec", .driver_data = FEC_QUIRK_ENET_MAC | FEC_QUIRK_HAS_GBIT | Please advise, Eric