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net-next:asix: V2 more fixes for ax88178 phy init sequence

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Now works on Samsung Series 5 (chromebook)

Two fixes here:
o use 0x7F mask for phymode
o read phyid *AFTER* phy is powered up (via GPIOs)

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 07:12:42 +00:00 committed by David S. Miller
parent d3665188a7
commit b2d3ad291f
1 changed files with 15 additions and 7 deletions
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22
drivers/net/usb/asix.c
View file

@ -1248,6 +1248,7 @@ static int ax88178_reset(struct usbnet *dev)
__le16 eeprom;
u8 status;
int gpio0 = 0;
u32 phyid;
asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &status);
dbg("GPIO Status: 0x%04x", status);
@ -1263,12 +1264,13 @@ static int ax88178_reset(struct usbnet *dev)
data->ledmode = 0;
gpio0 = 1;
} else {
data->phymode = le16_to_cpu(eeprom) & 7;
data->phymode = le16_to_cpu(eeprom) & 0x7F;
data->ledmode = le16_to_cpu(eeprom) >> 8;
gpio0 = (le16_to_cpu(eeprom) & 0x80) ? 0 : 1;
}
dbg("GPIO0: %d, PhyMode: %d", gpio0, data->phymode);
/* Power up external GigaPHY through AX88178 GPIO pin */
asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_1 | AX_GPIO_GPO1EN, 40);
if ((le16_to_cpu(eeprom) >> 8) != 1) {
asix_write_gpio(dev, 0x003c, 30);
@ -1280,6 +1282,13 @@ static int ax88178_reset(struct usbnet *dev)
asix_write_gpio(dev, AX_GPIO_GPO1EN | AX_GPIO_GPO_1, 30);
}
/* Read PHYID register *AFTER* powering up PHY */
phyid = asix_get_phyid(dev);
dbg("PHYID=0x%08x", phyid);
/* Set AX88178 to enable MII/GMII/RGMII interface for external PHY */
asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0, 0, 0, NULL);
asix_sw_reset(dev, 0);
msleep(150);
@ -1424,7 +1433,6 @@ static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
{
int ret;
u8 buf[ETH_ALEN];
u32 phyid;
struct asix_data *data = (struct asix_data *)&dev->data;
data->eeprom_len = AX88772_EEPROM_LEN;
@ -1451,12 +1459,12 @@ static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
dev->net->netdev_ops = &ax88178_netdev_ops;
dev->net->ethtool_ops = &ax88178_ethtool_ops;
phyid = asix_get_phyid(dev);
dbg("PHYID=0x%08x", phyid);
/* Blink LEDS so users know driver saw dongle */
asix_sw_reset(dev, 0);
msleep(150);
ret = ax88178_reset(dev);
if (ret < 0)
return ret;
asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD);
msleep(150);
/* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
if (dev->driver_info->flags & FLAG_FRAMING_AX) {