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linux-sg2042
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b44: activate PHY when MAC is off 

Without this patch we can not access the PHY when the MAC is switched
off. This PHY access is needed to configure the switch, which is done
through PHY registers.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hauke Mehrtens 2013-12-20 02:16:11 +01:00 committed by David S. Miller
parent 86f4ea63e6
commit bea69c47f5
1 changed files with 4 additions and 1 deletions
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5
drivers/net/ethernet/broadcom/b44.c
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@ -1360,7 +1360,10 @@ static void b44_halt(struct b44 *bp)
bw32(bp, B44_MAC_CTRL, MAC_CTRL_PHY_PDOWN);
/* now reset the chip, but without enabling the MAC&PHY
* part of it. This has to be done _after_ we shut down the PHY */
b44_chip_reset(bp, B44_CHIP_RESET_PARTIAL);
if (bp->flags & B44_FLAG_EXTERNAL_PHY)
b44_chip_reset(bp, B44_CHIP_RESET_FULL);
else
b44_chip_reset(bp, B44_CHIP_RESET_PARTIAL);
}
/* bp->lock is held. */