tree 517c178c74e02b31866618de48d658806fd52f6e
parent 7a3b09974409b150048ecfc6442f7aab8e830161
author Fabio Estevam <fabio.estevam@freescale.com> 1379470390 -0300
committer Stefano Babic <sbabic@denx.de> 1379692537 +0200

net: fec_mxc: Fix timeouts during tftp transfer

Performing tftp transfers on mx28 results in random timeouts.

Hector Palacios and Robert Hodaszi analyzed the root cause being related to the
wrong alignment of the 'buff' buffer inside fec_recv().

Benoît Thébaudeau provided an excellent analysis of the alignment bug that is
present on older versions, such as GCC 4.5.4:

http://marc.info/?l=u-boot&m=137942904906131&w=2

Use ALLOC_CACHE_ALIGN_BUFFER() to avoid alignment issues from older GCC
versions.

Reported-by: Hector Palacios <hector.palacios@digi.com>
Tested-by: Oliver Metz <oliver@freetz.org>
Tested-by: Hector Palacios <hector.palacios@digi.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Marek Vasut <marex@denx.de>