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net/phy: Add support for Realtek RTL8211F

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RTL8211F has different register definitions from RTL8211E.
Specially it needs to enable TXDLY in case of RGMII.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shengzhou Liu 2015-06-18 16:42:47 +08:00 committed by David S. Miller
parent fa433354f0
commit 3447cf2e9a
1 changed files with 67 additions and 1 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

68
drivers/net/phy/realtek.c
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@ -22,9 +22,13 @@
#define RTL821x_INER 0x12
#define RTL821x_INER_INIT 0x6400
#define RTL821x_INSR 0x13
#define RTL8211E_INER_LINK_STATUS 0x400
#define RTL8211F_INER_LINK_STATUS 0x0010
#define RTL8211F_INSR 0x1d
#define RTL8211F_PAGE_SELECT 0x1f
#define RTL8211F_TX_DELAY 0x100
MODULE_DESCRIPTION("Realtek PHY driver");
MODULE_AUTHOR("Johnson Leung");
MODULE_LICENSE("GPL");
@ -38,6 +42,18 @@ static int rtl821x_ack_interrupt(struct phy_device *phydev)
return (err < 0) ? err : 0;
}
static int rtl8211f_ack_interrupt(struct phy_device *phydev)
{
int err;
phy_write(phydev, RTL8211F_PAGE_SELECT, 0xa43);
err = phy_read(phydev, RTL8211F_INSR);
/* restore to default page 0 */
phy_write(phydev, RTL8211F_PAGE_SELECT, 0x0);
return (err < 0) ? err : 0;
}
static int rtl8211b_config_intr(struct phy_device *phydev)
{
int err;
@ -64,6 +80,41 @@ static int rtl8211e_config_intr(struct phy_device *phydev)
return err;
}
static int rtl8211f_config_intr(struct phy_device *phydev)
{
int err;
if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
err = phy_write(phydev, RTL821x_INER,
RTL8211F_INER_LINK_STATUS);
else
err = phy_write(phydev, RTL821x_INER, 0);
return err;
}
static int rtl8211f_config_init(struct phy_device *phydev)
{
int ret;
u16 reg;
ret = genphy_config_init(phydev);
if (ret < 0)
return ret;
if (phydev->interface == PHY_INTERFACE_MODE_RGMII) {
/* enable TXDLY */
phy_write(phydev, RTL8211F_PAGE_SELECT, 0xd08);
reg = phy_read(phydev, 0x11);
reg |= RTL8211F_TX_DELAY;
phy_write(phydev, 0x11, reg);
/* restore to default page 0 */
phy_write(phydev, RTL8211F_PAGE_SELECT, 0x0);
}
return 0;
}
static struct phy_driver realtek_drvs[] = {
{
.phy_id = 0x00008201,
@ -98,6 +149,20 @@ static struct phy_driver realtek_drvs[] = {
.suspend = genphy_suspend,
.resume = genphy_resume,
.driver = { .owner = THIS_MODULE,},
}, {
.phy_id = 0x001cc916,
.name = "RTL8211F Gigabit Ethernet",
.phy_id_mask = 0x001fffff,
.features = PHY_GBIT_FEATURES,
.flags = PHY_HAS_INTERRUPT,
.config_aneg = &genphy_config_aneg,
.config_init = &rtl8211f_config_init,
.read_status = &genphy_read_status,
.ack_interrupt = &rtl8211f_ack_interrupt,
.config_intr = &rtl8211f_config_intr,
.suspend = genphy_suspend,
.resume = genphy_resume,
.driver = { .owner = THIS_MODULE },
},
};
@ -106,6 +171,7 @@ module_phy_driver(realtek_drvs);
static struct mdio_device_id __maybe_unused realtek_tbl[] = {
{ 0x001cc912, 0x001fffff },
{ 0x001cc915, 0x001fffff },
{ 0x001cc916, 0x001fffff },
{ }
};