diff options
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.patch | 64 |
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); |