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Commit 3447cf2e authored by Shengzhou Liu's avatar Shengzhou Liu Committed by David S. Miller
Browse files

net/phy: Add support for Realtek RTL8211F



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

Signed-off-by: default avatarShengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fa433354
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+67 −1
Original line number Diff line number Diff line
@@ -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 },
	{ }
};