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net: phy: bcm54140: apply the workaround on b0 chips

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The lower three bits of the phy_id specifies the chip stepping. The
workaround is specifically for the B0 stepping. Apply it only on these
chips.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Walle
2020-04-29 01:06:58 +02:00
committed by David S. Miller
parent afcecca56f
commit e9a66851de
1 changed files with 8 additions and 3 deletions
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11
drivers/net/phy/bcm54140.c
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@@ -115,6 +115,9 @@
#define BCM54140_HWMON_IN_ALARM_BIT(ch) ((ch) ? BCM54140_RDB_MON_ISR_3V3 \
: BCM54140_RDB_MON_ISR_1V0)
#define BCM54140_PHY_ID_REV(phy_id) ((phy_id) & 0x7)
#define BCM54140_REV_B0 1
#define BCM54140_DEFAULT_DOWNSHIFT 5
#define BCM54140_MAX_DOWNSHIFT 9
@@ -632,9 +635,11 @@ static int bcm54140_config_init(struct phy_device *phydev)
int ret;
/* Apply hardware errata */
ret = bcm54140_b0_workaround(phydev);
if (ret)
return ret;
if (BCM54140_PHY_ID_REV(phydev->phy_id) == BCM54140_REV_B0) {
ret = bcm54140_b0_workaround(phydev);
if (ret)
return ret;
}
/* Unmask events we are interested in. */
reg &= ~(BCM54140_RDB_INT_DUPLEX |