macb: support DMA bus widths > 32 bits

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Some GEM implementations may support DMA bus widths up to 128 bits.  We
can get the maximum supported DMA bus width from the design
configuration register so use that to program the device up.

Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Tested-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

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Jamie Iles 2011-03-09 16:29:59 +00:00

parent a494ed8e25

commit 757a03c6e0

2 changed files with 42 additions and 0 deletions

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23

drivers/net/ethernet/cadence/macb.c

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19

drivers/net/ethernet/cadence/macb.h

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