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net-next:asix: reduce AX88772 init time by about 2 seconds

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ax88772_reset takes about 2 seconds and is called twice.
Once from ax88772_bind() directly and again indirectly from usbnet_open().
Reset the USB FW/Phy enough to blink the LEDs when inserted.

Signed-off-by: Allan Chou <allan@asix.com.tw>
Signed-off-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Grant Grundler 2011-11-15 07:12:41 +00:00 committed by David S. Miller
parent a77929a278
commit d3665188a7
1 changed files with 25 additions and 5 deletions
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30
drivers/net/usb/asix.c
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@ -1083,7 +1083,7 @@ static const struct net_device_ops ax88772_netdev_ops = {
static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
{
int ret;
int ret, embd_phy;
struct asix_data *data = (struct asix_data *)&dev->data;
u8 buf[ETH_ALEN];
u32 phyid;
@ -1108,16 +1108,36 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
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;
ret = ax88772_reset(dev);
embd_phy = ((dev->mii.phy_id & 0x1f) == 0x10 ? 1 : 0);
/* Reset the PHY to normal operation mode */
ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, embd_phy, 0, 0, NULL);
if (ret < 0) {
dbg("Select PHY #1 failed: %d", ret);
return ret;
}
ret = asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_PRL);
if (ret < 0)
return ret;
msleep(150);
ret = asix_sw_reset(dev, AX_SWRESET_CLEAR);
if (ret < 0)
return ret;
msleep(150);
ret = asix_sw_reset(dev, embd_phy ? AX_SWRESET_IPRL : AX_SWRESET_PRTE);
/* Read PHYID register *AFTER* the PHY was reset properly */
phyid = asix_get_phyid(dev);
dbg("PHYID=0x%08x", phyid);
/* 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