diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0123-lan78xx-Read-initial-EEE-status-from-DT.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0123-lan78xx-Read-initial-EEE-status-from-DT.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0123-lan78xx-Read-initial-EEE-status-from-DT.patch b/target/linux/brcm2708/patches-4.19/950-0123-lan78xx-Read-initial-EEE-status-from-DT.patch new file mode 100644 index 0000000000..a1a9fa6c88 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0123-lan78xx-Read-initial-EEE-status-from-DT.patch @@ -0,0 +1,40 @@ +From 26c3806ff17c6a7ed61ba127af36271390e86c89 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Fri, 9 Mar 2018 12:01:00 +0000 +Subject: [PATCH] lan78xx: Read initial EEE status from DT + +Add two new DT properties: +* microchip,eee-enabled - a boolean to enable EEE +* microchip,tx-lpi-timer - time in microseconds to wait before entering + low power state + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + drivers/net/usb/lan78xx.c | 16 ++++++++++++++++ + 1 file changed, 16 insertions(+) + +--- a/drivers/net/usb/lan78xx.c ++++ b/drivers/net/usb/lan78xx.c +@@ -2657,6 +2657,22 @@ 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); |