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ar71xx: add support for external mii_bus

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18692 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg
2009-12-08 10:29:27 +00:00
parent 1fec1f6c54
commit 5608c597c3
6 changed files with 52 additions and 9 deletions
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42
target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c
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@@ -262,10 +262,52 @@ static int ag71xx_phy_connect_multi(struct ag71xx *ag)
return ret;
}
static int dev_is_class(struct device *dev, void *class)
{
if (dev->class != NULL && !strcmp(dev->class->name, class))
return 1;
return 0;
}
static struct device *dev_find_class(struct device *parent, char *class)
{
if (dev_is_class(parent, class)) {
get_device(parent);
return parent;
}
return device_find_child(parent, class, dev_is_class);
}
static struct mii_bus *dev_to_mii_bus(struct device *dev)
{
struct device *d;
d = dev_find_class(dev, "mdio_bus");
if (d != NULL) {
struct mii_bus *bus;
bus = to_mii_bus(d);
put_device(d);
return bus;
}
return NULL;
}
int ag71xx_phy_connect(struct ag71xx *ag)
{
struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
ag->mii_bus = dev_to_mii_bus(pdata->mii_bus_dev);
if (ag->mii_bus == NULL) {
printk(KERN_ERR "%s: unable to find MII bus on device '%s'\n",
ag->dev->name, dev_name(pdata->mii_bus_dev));
return -ENODEV;
}
if (pdata->phy_mask)
return ag71xx_phy_connect_multi(ag);