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Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0131-lan78xx-Move-enabling-of-EEE-into-PHY-init-code.patch')
-rw-r--r--target/linux/brcm2708/patches-4.19/950-0131-lan78xx-Move-enabling-of-EEE-into-PHY-init-code.patch64
1 files changed, 64 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0131-lan78xx-Move-enabling-of-EEE-into-PHY-init-code.patch b/target/linux/brcm2708/patches-4.19/950-0131-lan78xx-Move-enabling-of-EEE-into-PHY-init-code.patch
new file mode 100644
index 0000000000..a1dfb00af7
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0131-lan78xx-Move-enabling-of-EEE-into-PHY-init-code.patch
@@ -0,0 +1,64 @@
+From 75ec78040e02200dfc2ad4e35c289086334fbee2 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 5 Apr 2018 14:46:11 +0100
+Subject: [PATCH] lan78xx: Move enabling of EEE into PHY init code
+
+Enable EEE mode as soon as possible after connecting to the PHY, and
+before phy_start. This avoids a second link negotiation, which speeds
+up booting and stops the interface failing to become ready.
+
+See: https://github.com/raspberrypi/linux/issues/2437
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/net/usb/lan78xx.c | 32 ++++++++++++++++----------------
+ 1 file changed, 16 insertions(+), 16 deletions(-)
+
+--- a/drivers/net/usb/lan78xx.c
++++ b/drivers/net/usb/lan78xx.c
+@@ -2189,6 +2189,22 @@ static int lan78xx_phy_init(struct lan78
+ mii_adv = (u32)mii_advertise_flowctrl(dev->fc_request_control);
+ phydev->advertising |= mii_adv_to_ethtool_adv_t(mii_adv);
+
++ if (of_property_read_bool(dev->udev->dev.of_node,
++ "microchip,eee-enabled")) {
++ struct ethtool_eee edata;
++ memset(&edata, 0, sizeof(edata));
++ edata.cmd = ETHTOOL_SEEE;
++ edata.advertised = ADVERTISED_1000baseT_Full |
++ ADVERTISED_100baseT_Full;
++ edata.eee_enabled = true;
++ edata.tx_lpi_enabled = true;
++ if (of_property_read_u32(dev->udev->dev.of_node,
++ "microchip,tx-lpi-timer",
++ &edata.tx_lpi_timer))
++ edata.tx_lpi_timer = 600; /* non-aggressive */
++ (void)lan78xx_set_eee(dev->net, &edata);
++ }
++
+ if (phydev->mdio.dev.of_node) {
+ u32 reg;
+ int len;
+@@ -2666,22 +2682,6 @@ static int lan78xx_open(struct net_devic
+
+ netif_dbg(dev, ifup, dev->net, "phy initialised successfully");
+
+- if (of_property_read_bool(dev->udev->dev.of_node,
+- "microchip,eee-enabled")) {
+- struct ethtool_eee edata;
+- memset(&edata, 0, sizeof(edata));
+- edata.cmd = ETHTOOL_SEEE;
+- edata.advertised = ADVERTISED_1000baseT_Full |
+- ADVERTISED_100baseT_Full;
+- edata.eee_enabled = true;
+- edata.tx_lpi_enabled = true;
+- if (of_property_read_u32(dev->udev->dev.of_node,
+- "microchip,tx-lpi-timer",
+- &edata.tx_lpi_timer))
+- edata.tx_lpi_timer = 600; /* non-aggressive */
+- (void)lan78xx_set_eee(net, &edata);
+- }
+-
+ /* for Link Check */
+ if (dev->urb_intr) {
+ ret = usb_submit_urb(dev->urb_intr, GFP_KERNEL);