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Commit d92ead16 authored by Xo Wang's avatar Xo Wang Committed by David S. Miller
Browse files

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: default avatarXo Wang <xow@google.com>
Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Reviewed-by: default avatarJoel Stanley <joel@jms.id.au>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3cf25904

drivers/net/phy/broadcom.c

+48 −0
Original line number Diff line number Diff line
@@ -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 },

include/linux/brcmphy.h

+1 −0
Original line number Diff line number Diff line
@@ -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