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Date: Tue, 4 Oct 2011 12:55:16 -0700
From: Grant Grundler <grundler@...omium.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
allan@...x.com.tw, Grant Grundler <grundler@...omium.org>,
"Freddy Xin" <freddy@...x.com.tw>
Subject: [PATCH 1/3] NET: fix phy init for AX88772 USB ethernet
Fix phy initialization for AX88772 (USB 2.0 100BT). Failure was
occasionally DHCP wouldn't work after reboot or suspend/resume cycle.
Remove MONITOR_MODE. In this mode, Received packets are not buffered when
the remote wakeup is enabled.
Signed-off-by: "Freddy Xin" <freddy@...x.com.tw>
Signed-off-by: Grant Grundler <grundler@...omium.org>
Acked-by: Olof Johansson <olofj@...omium.org>
---
drivers/net/usb/asix.c | 116 +++++++++++++++++++++++++----------------------
1 files changed, 62 insertions(+), 54 deletions(-)
diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c
index 6998aa6..a035aa9 100644
--- a/drivers/net/usb/asix.c
+++ b/drivers/net/usb/asix.c
@@ -36,7 +36,7 @@
#include <linux/usb/usbnet.h>
#include <linux/slab.h>
-#define DRIVER_VERSION "14-Jun-2006"
+#define DRIVER_VERSION "26-Sep-2011"
static const char driver_name [] = "asix";
/* ASIX AX8817X based USB 2.0 Ethernet Devices */
@@ -677,12 +677,6 @@ asix_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
}
wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
wolinfo->wolopts = 0;
- if (opt & AX_MONITOR_MODE) {
- if (opt & AX_MONITOR_LINK)
- wolinfo->wolopts |= WAKE_PHY;
- if (opt & AX_MONITOR_MAGIC)
- wolinfo->wolopts |= WAKE_MAGIC;
- }
}
static int
@@ -695,8 +689,6 @@ asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
opt |= AX_MONITOR_LINK;
if (wolinfo->wolopts & WAKE_MAGIC)
opt |= AX_MONITOR_MAGIC;
- if (opt != 0)
- opt |= AX_MONITOR_MODE;
if (asix_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE,
opt, 0, 0, NULL) < 0)
@@ -967,36 +959,18 @@ static int ax88772_link_reset(struct usbnet *dev)
return 0;
}
-static const struct net_device_ops ax88772_netdev_ops = {
- .ndo_open = usbnet_open,
- .ndo_stop = usbnet_stop,
- .ndo_start_xmit = usbnet_start_xmit,
- .ndo_tx_timeout = usbnet_tx_timeout,
- .ndo_change_mtu = usbnet_change_mtu,
- .ndo_set_mac_address = asix_set_mac_address,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_do_ioctl = asix_ioctl,
- .ndo_set_multicast_list = asix_set_multicast,
-};
-
-static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
+static int ax88772_reset(struct usbnet *dev)
{
+
int ret, embd_phy;
u16 rx_ctl;
- struct asix_data *data = (struct asix_data *)&dev->data;
- u8 buf[ETH_ALEN];
- u32 phyid;
-
- data->eeprom_len = AX88772_EEPROM_LEN;
-
- usbnet_get_endpoints(dev,intf);
if ((ret = asix_write_gpio(dev,
AX_GPIO_RSE | AX_GPIO_GPO_2 | AX_GPIO_GPO2EN, 5)) < 0)
goto out;
- /* 0x10 is the phy id of the embedded 10/100 ethernet phy */
embd_phy = ((asix_get_phy_addr(dev) & 0x1f) == 0x10 ? 1 : 0);
+
if ((ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT,
embd_phy, 0, 0, NULL)) < 0) {
dbg("Select PHY #1 failed: %d", ret);
@@ -1011,6 +985,7 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
goto out;
msleep(150);
+
if (embd_phy) {
if ((ret = asix_sw_reset(dev, AX_SWRESET_IPRL)) < 0)
goto out;
@@ -1029,25 +1004,6 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
rx_ctl = asix_read_rx_ctl(dev);
dbg("RX_CTL is 0x%04x setting to 0x0000", rx_ctl);
- /* Get the MAC address */
- if ((ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID,
- 0, 0, ETH_ALEN, buf)) < 0) {
- dbg("Failed to read MAC address: %d", ret);
- goto out;
- }
- memcpy(dev->net->dev_addr, buf, ETH_ALEN);
-
- /* Initialize MII structure */
- dev->mii.dev = dev->net;
- dev->mii.mdio_read = asix_mdio_read;
- dev->mii.mdio_write = asix_mdio_write;
- dev->mii.phy_id_mask = 0x1f;
- dev->mii.reg_num_mask = 0x1f;
- dev->mii.phy_id = asix_get_phy_addr(dev);
-
- phyid = asix_get_phyid(dev);
- dbg("PHYID=0x%08x", phyid);
-
if ((ret = asix_sw_reset(dev, AX_SWRESET_PRL)) < 0)
goto out;
@@ -1058,9 +1014,6 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
msleep(150);
- dev->net->netdev_ops = &ax88772_netdev_ops;
- dev->net->ethtool_ops = &ax88772_ethtool_ops;
-
asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
ADVERTISE_ALL | ADVERTISE_CSMA);
@@ -1086,6 +1039,61 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
rx_ctl = asix_read_medium_status(dev);
dbg("Medium Status is 0x%04x after all initializations", rx_ctl);
+ return 0;
+
+out:
+ return ret;
+
+}
+
+static const struct net_device_ops ax88772_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = usbnet_change_mtu,
+ .ndo_set_mac_address = asix_set_mac_address,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = asix_ioctl,
+ .ndo_set_multicast_list = asix_set_multicast,
+};
+
+static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int ret;
+ struct asix_data *data = (struct asix_data *)&dev->data;
+ u8 buf[ETH_ALEN];
+ u32 phyid;
+
+ data->eeprom_len = AX88772_EEPROM_LEN;
+
+ usbnet_get_endpoints(dev,intf);
+
+ /* Get the MAC address */
+ if ((ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID,
+ 0, 0, ETH_ALEN, buf)) < 0) {
+ dbg("Failed to read MAC address: %d", ret);
+ goto out;
+ }
+ memcpy(dev->net->dev_addr, buf, ETH_ALEN);
+
+ /* Initialize MII structure */
+ dev->mii.dev = dev->net;
+ dev->mii.mdio_read = asix_mdio_read;
+ dev->mii.mdio_write = asix_mdio_write;
+ dev->mii.phy_id_mask = 0x1f;
+ dev->mii.reg_num_mask = 0x1f;
+ dev->mii.phy_id = asix_get_phy_addr(dev);
+
+ phyid = asix_get_phyid(dev);
+ dbg("PHYID=0x%08x", phyid);
+
+ dev->net->netdev_ops = &ax88772_netdev_ops;
+ dev->net->ethtool_ops = &ax88772_ethtool_ops;
+
+ if ((ret = ax88772_reset(dev)) < 0)
+ goto out;
+
/* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
if (dev->driver_info->flags & FLAG_FRAMING_AX) {
/* hard_mtu is still the default - the device does not support
@@ -1093,7 +1101,6 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
dev->rx_urb_size = 2048;
}
return 0;
-
out:
return ret;
}
@@ -1427,7 +1434,7 @@ static const struct driver_info ax88772_info = {
.bind = ax88772_bind,
.status = asix_status,
.link_reset = ax88772_link_reset,
- .reset = ax88772_link_reset,
+ .reset = ax88772_reset,
.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR,
.rx_fixup = asix_rx_fixup,
.tx_fixup = asix_tx_fixup,
@@ -1585,6 +1592,7 @@ static void __exit asix_exit(void)
module_exit(asix_exit);
MODULE_AUTHOR("David Hollis");
+MODULE_VERSION(DRIVER_VERSION);
MODULE_DESCRIPTION("ASIX AX8817X based USB 2.0 Ethernet Devices");
MODULE_LICENSE("GPL");
--
1.7.2.3
--
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