xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net/macb: clear unused address register

Browse Source 
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>
This commit is contained in:
Joachim Eastwood
2012-11-11 13:56:28 +00:00
committed by David S. Miller
parent 2dbfdbb912
commit 3629a6cebc
2 changed files with 14 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/ethernet/cadence/macb.c
View File

@@ -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);