diff options
| author | Bhupesh Sharma <bhupesh.sharma@freescale.com> | 2013-09-01 04:40:52 +0530 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2013-11-22 16:50:51 -0600 |
| commit | 42205047674d7fc9e0aa747273fbc7dcfbac3183 (patch) | |
| tree | eaaed238d242cfa57d3945af44bcb24edc5b0863 /drivers/net | |
| parent | e97a78cfed113dfbf9a0db712624bca69065c3a1 (diff) | |
net/phy: realtek: Fix the PHY ID mask to ensure the correct Realtek PHY is detected
The 'get_phy_driver' code in 'drivers/net/phy/phy.c' uses the following
method to determine which driver is to be loaded for a particular PHY
module:
list_for_each(entry, &phy_drivers) {
drv = list_entry(entry, struct phy_driver, list);
if ((drv->uid & drv->mask) == (phy_id & drv->mask))
return drv;
}
This means that a drv->mask of 0xfffff0 will return incorrect phy driver
for the logic above, even if the drv->uid is anything other than
something ending with a 0x0.
For e.g. if the RTL8211E drv->uid is 0x1cc915 and drv->mask is 0xffffff
and the RTL8211B drv->uid is 0x1cc910 and drv->mask is 0xffffff0, then
the phy driver selected will always be RTL8211B even though the
underlying phy connected on the board is a 8211E module.
This patch fixes this issue.
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/phy/realtek.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c index ddbbc35e27..a3ace68526 100644 --- a/drivers/net/phy/realtek.c +++ b/drivers/net/phy/realtek.c @@ -102,7 +102,7 @@ static int rtl8211x_startup(struct phy_device *phydev) static struct phy_driver RTL8211B_driver = { .name = "RealTek RTL8211B", .uid = 0x1cc910, - .mask = 0xfffff0, + .mask = 0xffffff, .features = PHY_GBIT_FEATURES, .config = &rtl8211x_config, .startup = &rtl8211x_startup, @@ -113,7 +113,7 @@ static struct phy_driver RTL8211B_driver = { static struct phy_driver RTL8211E_driver = { .name = "RealTek RTL8211E", .uid = 0x1cc915, - .mask = 0xfffff0, + .mask = 0xffffff, .features = PHY_GBIT_FEATURES, .config = &rtl8211x_config, .startup = &rtl8211x_startup, @@ -124,7 +124,7 @@ static struct phy_driver RTL8211E_driver = { static struct phy_driver RTL8211DN_driver = { .name = "RealTek RTL8211DN", .uid = 0x1cc914, - .mask = 0xfffff0, + .mask = 0xffffff, .features = PHY_GBIT_FEATURES, .config = &rtl8211x_config, .startup = &rtl8211x_startup, |