LWIP buffer alignment

[Tim Harvey]

Hi Jerome,

I'm working with a board that has an IMX ENETC MAC on it
drivers/net/fsl_enetc.c and when configured for LWIP it fails and
warns about RX buffers not being 64B aligned:
WARNING at drivers/net/fsl_enetc.c:776/enetc_setup_rx_bdr()!

I tried changing MEM_ALIGNMENT to 64 in lib/lwip/u-boot/lwipopts.h but
that did not align the buffers to 64B. Where are the lwip buffers
created and do you have any suggestions for working around this?

Best Regards,

Tim