1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
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 127/806] 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);
|
