tree 671f9df5f8e59adcc3f6f2944e0b9f63501b885e
parent 7864a1adf7291993d74923fdd0a45459ce9da27e
author Claudiu Manoil <claudiu.manoil@freescale.com> 1375712409 +0300
committer David S. Miller <davem@davemloft.net> 1375730955 -0700

gianfar: Fix Tx csum generation errata handling

Both [eTSEC76] and [eTSEC12] errata relate to Tx checksum generation
(for some MPC83xx and MCP8548 older revisions). They require the same
workaround: manual checksum computation and insertion, and disabling
the H/W Tx csum acceleration feature (per frame) through Tx FCB
(Frame Control Block) csum offload settings.

The workaround for [eTSEC76] needs to be fixed because it currently
fails to disable H/W Tx csum insertion via FCB. This patch fixes it
and provides a common workaround implementation for both Tx csum errata.

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>