1 files changed, 40 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.4/704-v4.20-net-phy-Stop-with-excessive-soft-reset.patch b/target/linux/generic/backport-5.4/704-v4.20-net-phy-Stop-with-excessive-soft-reset.patch
new file mode 100644
index 0000000000..00ef6b7a1d
--- /dev/null
+++ b/target/linux/generic/backport-5.4/704-v4.20-net-phy-Stop-with-excessive-soft-reset.patch
@@ -0,0 +1,40 @@
+From 1541649a9dd79e9b941d399de564475e426a2d0b Mon Sep 17 00:00:00 2001
+From: Florian Fainelli <f.fainelli@gmail.com>
+Date: Tue, 25 Sep 2018 11:28:45 -0700
+Subject: [PATCH 602/660] net: phy: Stop with excessive soft reset
+
+While consolidating the PHY reset in phy_init_hw() an unconditionaly
+BMCR soft-reset I became quite trigger happy with those. This was later
+on deactivated for the Generic PHY driver on the premise that a prior
+software entity (e.g: bootloader) might have applied workarounds in
+commit 0878fff1f42c ("net: phy: Do not perform software reset for
+Generic PHY").
+
+Since we have a hook to wire-up a soft_reset callback, just use that and
+get rid of the call to genphy_soft_reset() entirely. This speeds up
+initialization and link establishment for most PHYs out there that do
+not require a reset.
+
+Fixes: 87aa9f9c61ad ("net: phy: consolidate PHY reset in phy_init_hw()")
+Tested-by: Wang, Dongsheng <dongsheng.wang@hxt-semitech.com>
+Tested-by: Chris Healy <cphealy@gmail.com>
+Tested-by: Andrew Lunn <andrew@lunn.ch>
+Tested-by: Clemens Gruber <clemens.gruber@pqgruber.com>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
+---
+ drivers/net/phy/phy_device.c | 2 --
+ 1 file changed, 2 deletions(-)
+
+--- a/drivers/net/phy/phy_device.c
++++ b/drivers/net/phy/phy_device.c
+@@ -886,8 +886,6 @@ int phy_init_hw(struct phy_device *phyde
+ 
+ 	if (phydev->drv->soft_reset)
+ 		ret = phydev->drv->soft_reset(phydev);
+-	else
+-		ret = genphy_soft_reset(phydev);
+ 
+ 	if (ret < 0)
+ 		return ret;