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authorYangbo Lu <yangbo.lu@nxp.com>2020-04-10 10:47:05 +0800
committerPetr Štetiar <ynezz@true.cz>2020-05-07 12:53:06 +0200
commitcddd4591404fb4c53dc0b3c0b15b942cdbed4356 (patch)
tree392c1179de46b0f804e3789edca19069b64e6b44 /target/linux/layerscape/patches-5.4/701-net-0342-LF-376-enetc-disable-EEE-autoneg-by-default.patch
parentd1d2c0b5579ea4f69a42246c9318539d61ba1999 (diff)
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layerscape: add patches-5.4
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release which was tagged LSDK-20.04-V5.4. https://source.codeaurora.org/external/qoriq/qoriq-components/linux/ For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in LSDK, port the dts patches from 4.14. The patches are sorted into the following categories: 301-arch-xxxx 302-dts-xxxx 303-core-xxxx 701-net-xxxx 801-audio-xxxx 802-can-xxxx 803-clock-xxxx 804-crypto-xxxx 805-display-xxxx 806-dma-xxxx 807-gpio-xxxx 808-i2c-xxxx 809-jailhouse-xxxx 810-keys-xxxx 811-kvm-xxxx 812-pcie-xxxx 813-pm-xxxx 814-qe-xxxx 815-sata-xxxx 816-sdhc-xxxx 817-spi-xxxx 818-thermal-xxxx 819-uart-xxxx 820-usb-xxxx 821-vfio-xxxx Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0342-LF-376-enetc-disable-EEE-autoneg-by-default.patch')
-rw-r--r--target/linux/layerscape/patches-5.4/701-net-0342-LF-376-enetc-disable-EEE-autoneg-by-default.patch38
1 files changed, 38 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0342-LF-376-enetc-disable-EEE-autoneg-by-default.patch b/target/linux/layerscape/patches-5.4/701-net-0342-LF-376-enetc-disable-EEE-autoneg-by-default.patch
new file mode 100644
index 0000000000..18b4d77dc9
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0342-LF-376-enetc-disable-EEE-autoneg-by-default.patch
@@ -0,0 +1,38 @@
+From cb87015e005f429bff6fc084a61281235ca83d51 Mon Sep 17 00:00:00 2001
+From: Yangbo Lu <yangbo.lu@nxp.com>
+Date: Fri, 6 Dec 2019 12:41:48 +0800
+Subject: [PATCH] LF-376 enetc: disable EEE autoneg by default
+
+The EEE support has not been enabled on ENETC, but it may connect
+to a PHY which supports EEE and advertises EEE by default, while
+its link partner also advertises EEE. If this happens, the PHY enters
+low power mode when the traffic rate is low and causes packet loss.
+This patch disables EEE advertisement by default for any PHY that
+ENETC connects to, to prevent the above unwanted outcome.
+
+Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
+---
+ drivers/net/ethernet/freescale/enetc/enetc.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/net/ethernet/freescale/enetc/enetc.c
++++ b/drivers/net/ethernet/freescale/enetc/enetc.c
+@@ -1369,6 +1369,7 @@ static int enetc_phy_connect(struct net_
+ {
+ struct enetc_ndev_priv *priv = netdev_priv(ndev);
+ struct phy_device *phydev;
++ struct ethtool_eee edata;
+
+ if (!priv->phy_node)
+ return 0; /* phy-less mode */
+@@ -1382,6 +1383,10 @@ static int enetc_phy_connect(struct net_
+
+ phy_attached_info(phydev);
+
++ /* disable EEE autoneg, until ENETC driver supports it */
++ memset(&edata, 0, sizeof(struct ethtool_eee));
++ phy_ethtool_set_eee(phydev, &edata);
++
+ return 0;
+ }
+