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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);
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