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Commit 0c2fdc25 authored by Florian Fainelli's avatar Florian Fainelli Committed by David S. Miller
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net: phy: bcm7xxx: add workaround for PHY revision E0 and F0 



PHY revisions E0 and F0 share the same shorter workaround initialization
sequence. Dedicate a special function for these two PHY revisions to
perform the needed workaround sequence.

Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a490631f

drivers/net/phy/bcm7xxx.c

+29 −0
Original line number Diff line number Diff line
@@ -162,6 +162,31 @@ static int bcm7xxx_28nm_d0_afe_config_init(struct phy_device *phydev) 
	return 0;

}



static int bcm7xxx_28nm_e0_plus_afe_config_init(struct phy_device *phydev)

{

	/* AFE_RXCONFIG_1, provide more margin for INL/DNL measurement */

	phy_write_misc(phydev, AFE_RXCONFIG_1, 0x9b2f);



	/* AFE_VDCA_ICTRL_0, set Iq=1101 instead of 0111 for AB symmetry */

	phy_write_misc(phydev, AFE_VDCA_ICTRL_0, 0xa7da);



	/* AFE_HPF_TRIM_OTHERS, set 100Tx/10BT to -4.5% swing and set rCal

	 * offset for HT=0 code

	 */

	phy_write_misc(phydev, AFE_HPF_TRIM_OTHERS, 0x00e3);



	/* CORE_BASE1E, force trim to overwrite and set I_ext trim to 0000 */

	phy_write(phydev, MII_BCM7XXX_CORE_BASE1E, 0x0010);



	/* DSP_TAP10, adjust bias current trim (+0% swing, +0 tick) */

	phy_write_misc(phydev, DSP_TAP10, 0x011b);



	/* Reset R_CAL/RC_CAL engine */

	r_rc_cal_reset(phydev);



	return 0;

}



static int bcm7xxx_apd_enable(struct phy_device *phydev)

{

	int val;
@@ -225,6 +250,10 @@ static int bcm7xxx_28nm_config_init(struct phy_device *phydev) 
	case 0xd0:

		ret = bcm7xxx_28nm_d0_afe_config_init(phydev);

		break;

	case 0xe0:

	case 0xf0:

		ret = bcm7xxx_28nm_e0_plus_afe_config_init(phydev);

		break;

	default:

		break;

	}