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| author |   Michal Simek <michal.simek@xilinx.com> | 2018-09-25 08:32:50 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-09-25 10:33:06 -0700 |
| commit | bd6207202db8974ca3d3183ca0d5611d45b2973c (patch) | |
| tree | dddcf8937252cdad9cdada68fd9a5f238323e239 /drivers/net/tun.c | |
| parent | Merge branch 'r8169-series-with-smaller-improvements' (diff) | |
| download | linux-dev-bd6207202db8974ca3d3183ca0d5611d45b2973c.tar.xz linux-dev-bd6207202db8974ca3d3183ca0d5611d45b2973c.zip | |
net: macb: Clean 64b dma addresses if they are not detected
Clear ADDR64 dma bit in DMACFG register in case that HW_DMA_CAP_64B is
not detected on 64bit system.
The issue was observed when bootloader(u-boot) does not check macb
feature at DCFG6 register (DAW64_OFFSET) and enabling 64bit dma support
by default. Then macb driver is reading DMACFG register back and only
adding 64bit dma configuration but not cleaning it out.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/tun.c')
0 files changed, 0 insertions, 0 deletions