net: axienet: Cleanup DMA device reset and halt process

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The Xilinx DMA blocks each have their own reset register, but they both
reset the entire DMA engine, so only one of them needs to be reset.

Also, when stopping the device, we need to not just command the DMA
blocks to stop, but wait for them to stop, and trigger a device reset
to ensure that they are completely stopped.

Signed-off-by: Robert Hancock <hancock@sedsystems.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Robert Hancock 2019-06-06 16:28:12 -06:00 • committed by David S. Miller

parent 7789e9ed05

commit 489d4d7713

2 changed files with 42 additions and 14 deletions

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2

drivers/net/ethernet/xilinx/xilinx_axienet.h

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54

drivers/net/ethernet/xilinx/xilinx_axienet_main.c

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