f791fb4af4
Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Tim Harvey <tharvey@gateworks.com> [fixes]
68 lines
2.1 KiB
Diff
68 lines
2.1 KiB
Diff
From: Florian Fainelli <f.fainelli@gmail.com>
|
|
Date: Fri, 20 Jan 2017 12:36:34 -0800
|
|
Subject: [PATCH] net: phy: bcm7xxx: Implement EGPHY workaround for 7278
|
|
|
|
Implement the HW design team recommended workaround in for 7278. Since
|
|
the GPHY now returns its revision information in MII_PHYS_ID[23] we need
|
|
to check whether the revision provided in flags is 0 or not.
|
|
|
|
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
---
|
|
|
|
--- a/drivers/net/phy/bcm7xxx.c
|
|
+++ b/drivers/net/phy/bcm7xxx.c
|
|
@@ -163,12 +163,43 @@ static int bcm7xxx_28nm_e0_plus_afe_conf
|
|
return 0;
|
|
}
|
|
|
|
+static int bcm7xxx_28nm_a0_patch_afe_config_init(struct phy_device *phydev)
|
|
+{
|
|
+ /* +1 RC_CAL codes for RL centering for both LT and HT conditions */
|
|
+ bcm_phy_write_misc(phydev, AFE_RXCONFIG_2, 0xd003);
|
|
+
|
|
+ /* Cut master bias current by 2% to compensate for RC_CAL offset */
|
|
+ bcm_phy_write_misc(phydev, DSP_TAP10, 0x791b);
|
|
+
|
|
+ /* Improve hybrid leakage */
|
|
+ bcm_phy_write_misc(phydev, AFE_HPF_TRIM_OTHERS, 0x10e3);
|
|
+
|
|
+ /* Change rx_on_tune 8 to 0xf */
|
|
+ bcm_phy_write_misc(phydev, 0x21, 0x2, 0x87f6);
|
|
+
|
|
+ /* Change 100Tx EEE bandwidth */
|
|
+ bcm_phy_write_misc(phydev, 0x22, 0x2, 0x017d);
|
|
+
|
|
+ /* Enable ffe zero detection for Vitesse interoperability */
|
|
+ bcm_phy_write_misc(phydev, 0x26, 0x2, 0x0015);
|
|
+
|
|
+ r_rc_cal_reset(phydev);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
static int bcm7xxx_28nm_config_init(struct phy_device *phydev)
|
|
{
|
|
u8 rev = PHY_BRCM_7XXX_REV(phydev->dev_flags);
|
|
u8 patch = PHY_BRCM_7XXX_PATCH(phydev->dev_flags);
|
|
int ret = 0;
|
|
|
|
+ /* Newer devices have moved the revision information back into a
|
|
+ * standard location in MII_PHYS_ID[23]
|
|
+ */
|
|
+ if (rev == 0)
|
|
+ rev = phydev->phy_id & ~phydev->drv->phy_id_mask;
|
|
+
|
|
pr_info_once("%s: %s PHY revision: 0x%02x, patch: %d\n",
|
|
phydev_name(phydev), phydev->drv->name, rev, patch);
|
|
|
|
@@ -192,6 +223,9 @@ static int bcm7xxx_28nm_config_init(stru
|
|
case 0x10:
|
|
ret = bcm7xxx_28nm_e0_plus_afe_config_init(phydev);
|
|
break;
|
|
+ case 0x01:
|
|
+ ret = bcm7xxx_28nm_a0_patch_afe_config_init(phydev);
|
|
+ break;
|
|
default:
|
|
break;
|
|
}
|