ar8216: disable EEE by default on AR8327 to fix stability issues (#14597)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 41577

target/linux/generic/files/drivers/net/phy/ar8216.c

@@ -1626,6 +1626,15 @@ ar8327_init_globals(struct ar8xxx_priv *priv)
 	/* Enable MIB counters */
 	ar8xxx_reg_set(priv, AR8327_REG_MODULE_EN,
 		       AR8327_MODULE_EN_MIB);
+
+	/* Disable EEE on all ports due to stability issues */
+	t = priv->read(priv, AR8327_REG_EEE_CTRL);
+	t |= AR8327_EEE_CTRL_DISABLE_PHY(0) |
+	     AR8327_EEE_CTRL_DISABLE_PHY(1) |
+	     AR8327_EEE_CTRL_DISABLE_PHY(2) |
+	     AR8327_EEE_CTRL_DISABLE_PHY(3) |
+	     AR8327_EEE_CTRL_DISABLE_PHY(4);
+	priv->write(priv, AR8327_REG_EEE_CTRL, t);
 }
 
 static void

target/linux/generic/files/drivers/net/phy/ar8216.h

@@ -366,6 +366,9 @@
 #define   AR8327_SGMII_CTRL_EN_RX		BIT(2)
 #define   AR8327_SGMII_CTRL_EN_TX		BIT(3)
 
+#define AR8327_REG_EEE_CTRL			0x100
+#define   AR8327_EEE_CTRL_DISABLE_PHY(_i)	BIT(4 + (_i) * 2)
+
 #define AR8327_REG_PORT_VLAN0(_i)		(0x420 + (_i) * 0x8)
 #define   AR8327_PORT_VLAN0_DEF_SVID		BITS(0, 12)
 #define   AR8327_PORT_VLAN0_DEF_SVID_S		0