mirror of
https://github.com/torvalds/linux.git
synced 2024-11-16 17:12:06 +00:00
Fix Vitesse RGMII-ID support
The Vitesse PHY on the 8641D needs to be set up with internal delay to work in RGMII mode. So we add skew when it is set to RGMII_ID mode. Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Haruki Dai <Dai.Haruki@freescale.com> Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
This commit is contained in:
parent
cc65185d40
commit
af2d940df2
@ -21,6 +21,10 @@
|
||||
/* Vitesse Extended Control Register 1 */
|
||||
#define MII_VSC8244_EXT_CON1 0x17
|
||||
#define MII_VSC8244_EXTCON1_INIT 0x0000
|
||||
#define MII_VSC8244_EXTCON1_TX_SKEW_MASK 0x0c00
|
||||
#define MII_VSC8244_EXTCON1_RX_SKEW_MASK 0x0300
|
||||
#define MII_VSC8244_EXTCON1_TX_SKEW 0x0800
|
||||
#define MII_VSC8244_EXTCON1_RX_SKEW 0x0200
|
||||
|
||||
/* Vitesse Interrupt Mask Register */
|
||||
#define MII_VSC8244_IMASK 0x19
|
||||
@ -39,7 +43,7 @@
|
||||
|
||||
/* Vitesse Auxiliary Control/Status Register */
|
||||
#define MII_VSC8244_AUX_CONSTAT 0x1c
|
||||
#define MII_VSC8244_AUXCONSTAT_INIT 0x0004
|
||||
#define MII_VSC8244_AUXCONSTAT_INIT 0x0000
|
||||
#define MII_VSC8244_AUXCONSTAT_DUPLEX 0x0020
|
||||
#define MII_VSC8244_AUXCONSTAT_SPEED 0x0018
|
||||
#define MII_VSC8244_AUXCONSTAT_GBIT 0x0010
|
||||
@ -51,6 +55,7 @@ MODULE_LICENSE("GPL");
|
||||
|
||||
static int vsc824x_config_init(struct phy_device *phydev)
|
||||
{
|
||||
int extcon;
|
||||
int err;
|
||||
|
||||
err = phy_write(phydev, MII_VSC8244_AUX_CONSTAT,
|
||||
@ -58,8 +63,20 @@ static int vsc824x_config_init(struct phy_device *phydev)
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
err = phy_write(phydev, MII_VSC8244_EXT_CON1,
|
||||
MII_VSC8244_EXTCON1_INIT);
|
||||
extcon = phy_read(phydev, MII_VSC8244_EXT_CON1);
|
||||
|
||||
if (extcon < 0)
|
||||
return err;
|
||||
|
||||
extcon &= ~(MII_VSC8244_EXTCON1_TX_SKEW_MASK |
|
||||
MII_VSC8244_EXTCON1_RX_SKEW_MASK);
|
||||
|
||||
if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
|
||||
extcon |= (MII_VSC8244_EXTCON1_TX_SKEW |
|
||||
MII_VSC8244_EXTCON1_RX_SKEW);
|
||||
|
||||
err = phy_write(phydev, MII_VSC8244_EXT_CON1, extcon);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user