sh_eth: add EDMR.NBST support

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The R-Car V3H (AKA R8A77980) GEther controller adds the DMA burst mode bit
(NBST) in EDMR and the manual tells to always set it before doing any DMA.

Based on the original (and large) patch by Vladimir Barinov.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Sergei Shtylyov 2018-05-18 21:31:28 +03:00 • committed by David S. Miller

parent 230c184679

commit 93f0fa7519

2 changed files with 6 additions and 0 deletions

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4

drivers/net/ethernet/renesas/sh_eth.c

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2

drivers/net/ethernet/renesas/sh_eth.h

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