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| author | Joachim Eastwood <manabian@gmail.com> | 2012-11-11 13:56:28 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-11-14 18:51:03 -0500 |
| commit | 3629a6cebcdcfe16f3dbbffcaab25583285a7125 (patch) | |
| tree | 3b9a312a6c9919e5f1fd0305a0f09aec1a9d8108 /drivers/net/ethernet/cadence/macb.c | |
| parent | 2dbfdbb912c4b53f022649a7affb0691da1e9bc4 (diff) | |
| download | lwn-3629a6cebcdcfe16f3dbbffcaab25583285a7125.tar.gz lwn-3629a6cebcdcfe16f3dbbffcaab25583285a7125.zip | |
net/macb: clear unused address register
Only the first register set is used for matching but
we support getting the initial hw addr from any of
the registers.
To prevent stale entries and false matches clear unused
register sets. This most important for the at91_ether
driver where u-boot always uses the 2nd register set.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cadence/macb.c')
| -rw-r--r-- | drivers/net/ethernet/cadence/macb.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c index ca34efc62bae..edb2aba9045c 100644 --- a/drivers/net/ethernet/cadence/macb.c +++ b/drivers/net/ethernet/cadence/macb.c @@ -108,6 +108,14 @@ void macb_set_hwaddr(struct macb *bp) macb_or_gem_writel(bp, SA1B, bottom); top = cpu_to_le16(*((u16 *)(bp->dev->dev_addr + 4))); macb_or_gem_writel(bp, SA1T, top); + + /* Clear unused address register sets */ + macb_or_gem_writel(bp, SA2B, 0); + macb_or_gem_writel(bp, SA2T, 0); + macb_or_gem_writel(bp, SA3B, 0); + macb_or_gem_writel(bp, SA3T, 0); + macb_or_gem_writel(bp, SA4B, 0); + macb_or_gem_writel(bp, SA4T, 0); } EXPORT_SYMBOL_GPL(macb_set_hwaddr); |