linux-imx

staging: fsl_ppfe/eth: handle ls1012a errata_a010897

On LS1012A rev 1.0, Jumbo frames are not supported as it causes
the PFE controller to hang. A reset of the entire chip is required
to resume normal operation.

To handle this errata, frames with length > 1900 are truncated for
rev 1.0 of LS1012A.

Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>