Commit 0c2fdc25 authored Nov 11, 2014 by Florian Fainelli Committed by David S. Miller Nov 12, 2014

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: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David 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;
		}