On Mon, Nov 14, 2016 at 06:58:07PM +0100, Michael Weiser wrote: > The EMAC EMAC_RX_IO_DATA_REG data register is dual-purpose: On one hand > it is used to move actual packet data off the wire. This will be in > wire-format and accepted as such by higher layers such as IP. Therefore > it is correctly read as-is (i.e. raw) using readsl. > > On the other hand it provides metadata about incoming transfers to the > driver such as length and checksum validation status. This data is > little-endian, always and it is interpreted by the driver. Therefore it > needs to be swapped to CPU endianness to make sense to the driver. This > is already done for the "receive header" but not rxhdr. > > Read rxhdr using readl in order for sun4i-emac to work correctly when > running a big-endian kernel. > > Signed-off-by: Michael Weiser <michael.wei...@gmx.de> > Cc: Maxime Ripard <maxime.rip...@free-electrons.com> > Cc: netdev@vger.kernel.org
Acked-by: Maxime Ripard <maxime.rip...@free-electrons.com> Thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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