openwrt/target/linux/mediatek/patches-6.1/732-net-phy-mxl-gpy-don-t-use-SGMII-AN-if-using-phylink.patch
Daniel Golle 90fbec89be kernel: hack: support inverted LEDs on MaxLinear GPY211 PHY
Add downstream DT property to setup the PHY LEDs of the MaxLinear
GPY211 PHY in such way that the VDD of the LED is driven by the SoC
pin rather than the GND (which is the default).

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2023-12-10 01:21:27 +00:00

64 lines
2.1 KiB
Diff

From a969b663c866129ed9eb217785a6574fbe826f1d Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Thu, 6 Apr 2023 23:36:50 +0100
Subject: [PATCH] net: phy: mxl-gpy: don't use SGMII AN if using phylink
MAC drivers using phylink expect SGMII in-band-status to be switched off
when attached to a PHY. Make sure this is the case also for mxl-gpy which
keeps SGMII in-band-status in case of SGMII interface mode is used.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/net/phy/mxl-gpy.c | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
--- a/drivers/net/phy/mxl-gpy.c
+++ b/drivers/net/phy/mxl-gpy.c
@@ -371,8 +371,11 @@ static bool gpy_2500basex_chk(struct phy
phydev->speed = SPEED_2500;
phydev->interface = PHY_INTERFACE_MODE_2500BASEX;
- phy_modify_mmd(phydev, MDIO_MMD_VEND1, VSPEC1_SGMII_CTRL,
- VSPEC1_SGMII_CTRL_ANEN, 0);
+
+ if (!phydev->phylink)
+ phy_modify_mmd(phydev, MDIO_MMD_VEND1, VSPEC1_SGMII_CTRL,
+ VSPEC1_SGMII_CTRL_ANEN, 0);
+
return true;
}
@@ -396,6 +399,14 @@ static int gpy_config_aneg(struct phy_de
u32 adv;
int ret;
+ /* Disable SGMII auto-negotiation if using phylink */
+ if (phydev->phylink) {
+ ret = phy_modify_mmd(phydev, MDIO_MMD_VEND1, VSPEC1_SGMII_CTRL,
+ VSPEC1_SGMII_CTRL_ANEN, 0);
+ if (ret < 0)
+ return ret;
+ }
+
if (phydev->autoneg == AUTONEG_DISABLE) {
/* Configure half duplex with genphy_setup_forced,
* because genphy_c45_pma_setup_forced does not support.
@@ -486,6 +497,8 @@ static void gpy_update_interface(struct
switch (phydev->speed) {
case SPEED_2500:
phydev->interface = PHY_INTERFACE_MODE_2500BASEX;
+ if (phydev->phylink)
+ break;
ret = phy_modify_mmd(phydev, MDIO_MMD_VEND1, VSPEC1_SGMII_CTRL,
VSPEC1_SGMII_CTRL_ANEN, 0);
if (ret < 0)
@@ -497,7 +510,7 @@ static void gpy_update_interface(struct
case SPEED_100:
case SPEED_10:
phydev->interface = PHY_INTERFACE_MODE_SGMII;
- if (gpy_sgmii_aneg_en(phydev))
+ if (phydev->phylink || gpy_sgmii_aneg_en(phydev))
break;
/* Enable and restart SGMII ANEG for 10/100/1000Mbps link speed
* if ANEG is disabled (in 2500-BaseX mode).