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net: phy: broadcom: Add support for BCM54612E 

This PHY has internal delays enabled after reset. This clears the
internal delay enables unless the interface specifically requests them.

Signed-off-by: Xo Wang <xow@google.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xo Wang 2016-10-21 10:20:13 -07:00 committed by David S. Miller
parent 3cf25904fe
commit d92ead16be
2 changed files with 49 additions and 0 deletions
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48
drivers/net/phy/broadcom.c
View File

@ -337,6 +337,41 @@ static int bcm5481_config_aneg(struct phy_device *phydev)
return ret;
}
static int bcm54612e_config_aneg(struct phy_device *phydev)
{
int ret;
/* First, auto-negotiate. */
ret = genphy_config_aneg(phydev);
/* Clear TX internal delay unless requested. */
if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) &&
(phydev->interface != PHY_INTERFACE_MODE_RGMII_TXID)) {
/* Disable TXD to GTXCLK clock delay (default set) */
/* Bit 9 is the only field in shadow register 00011 */
bcm_phy_write_shadow(phydev, 0x03, 0);
}
/* Clear RX internal delay unless requested. */
if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) &&
(phydev->interface != PHY_INTERFACE_MODE_RGMII_RXID)) {
u16 reg;
/* Errata: reads require filling in the write selector field */
bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
MII_BCM54XX_AUXCTL_MISC_RDSEL_MISC);
reg = phy_read(phydev, MII_BCM54XX_AUX_CTL);
/* Disable RXD to RXC delay (default set) */
reg &= ~MII_BCM54XX_AUXCTL_MISC_RXD_RXC_SKEW;
/* Clear shadow selector field */
reg &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MASK;
bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
MII_BCM54XX_AUXCTL_MISC_WREN | reg);
}
return ret;
}
static int brcm_phy_setbits(struct phy_device *phydev, int reg, int set)
{
int val;
@ -484,6 +519,18 @@ static struct phy_driver broadcom_drivers[] = {
.read_status = genphy_read_status,
.ack_interrupt = bcm_phy_ack_intr,
.config_intr = bcm_phy_config_intr,
}, {
.phy_id = PHY_ID_BCM54612E,
.phy_id_mask = 0xfffffff0,
.name = "Broadcom BCM54612E",
.features = PHY_GBIT_FEATURES |
SUPPORTED_Pause | SUPPORTED_Asym_Pause,
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
.config_init = bcm54xx_config_init,
.config_aneg = bcm54612e_config_aneg,
.read_status = genphy_read_status,
.ack_interrupt = bcm_phy_ack_intr,
.config_intr = bcm_phy_config_intr,
}, {
.phy_id = PHY_ID_BCM54616S,
.phy_id_mask = 0xfffffff0,
@ -600,6 +647,7 @@ static struct mdio_device_id __maybe_unused broadcom_tbl[] = {
{ PHY_ID_BCM5411, 0xfffffff0 },
{ PHY_ID_BCM5421, 0xfffffff0 },
{ PHY_ID_BCM5461, 0xfffffff0 },
{ PHY_ID_BCM54612E, 0xfffffff0 },
{ PHY_ID_BCM54616S, 0xfffffff0 },
{ PHY_ID_BCM5464, 0xfffffff0 },
{ PHY_ID_BCM5481, 0xfffffff0 },

1
include/linux/brcmphy.h
View File

@ -18,6 +18,7 @@
#define PHY_ID_BCM5421 0x002060e0
#define PHY_ID_BCM5464 0x002060b0
#define PHY_ID_BCM5461 0x002060c0
#define PHY_ID_BCM54612E 0x03625e60
#define PHY_ID_BCM54616S 0x03625d10
#define PHY_ID_BCM57780 0x03625d90