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net/phy: Add interrupt support for dp83640 phy.

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Added functions for ack_interrupt and config_intr. Tested on an mpc5200b
powerpc board.

Signed-off-by: Stephan Gatzka <stephan.gatzka@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephan Gatzka 2012-12-04 10:21:38 +00:00 committed by David S. Miller
parent 59e955edb7
commit 1642182ea0
1 changed files with 77 additions and 1 deletions
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78
drivers/net/phy/dp83640.c
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@ -48,6 +48,21 @@
#define CAL_TRIGGER 7
#define PER_TRIGGER 6
#define MII_DP83640_MICR 0x11
#define MII_DP83640_MISR 0x12
#define MII_DP83640_MICR_OE 0x1
#define MII_DP83640_MICR_IE 0x2
#define MII_DP83640_MISR_RHF_INT_EN 0x01
#define MII_DP83640_MISR_FHF_INT_EN 0x02
#define MII_DP83640_MISR_ANC_INT_EN 0x04
#define MII_DP83640_MISR_DUP_INT_EN 0x08
#define MII_DP83640_MISR_SPD_INT_EN 0x10
#define MII_DP83640_MISR_LINK_INT_EN 0x20
#define MII_DP83640_MISR_ED_INT_EN 0x40
#define MII_DP83640_MISR_LQ_INT_EN 0x80
/* phyter seems to miss the mark by 16 ns */
#define ADJTIME_FIX 16
@ -1043,6 +1058,65 @@ static void dp83640_remove(struct phy_device *phydev)
kfree(dp83640);
}
static int dp83640_ack_interrupt(struct phy_device *phydev)
{
int err = phy_read(phydev, MII_DP83640_MISR);
if (err < 0)
return err;
return 0;
}
static int dp83640_config_intr(struct phy_device *phydev)
{
int micr;
int misr;
int err;
if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
misr = phy_read(phydev, MII_DP83640_MISR);
if (misr < 0)
return misr;
misr |=
(MII_DP83640_MISR_ANC_INT_EN |
MII_DP83640_MISR_DUP_INT_EN |
MII_DP83640_MISR_SPD_INT_EN |
MII_DP83640_MISR_LINK_INT_EN);
err = phy_write(phydev, MII_DP83640_MISR, misr);
if (err < 0)
return err;
micr = phy_read(phydev, MII_DP83640_MICR);
if (micr < 0)
return micr;
micr |=
(MII_DP83640_MICR_OE |
MII_DP83640_MICR_IE);
return phy_write(phydev, MII_DP83640_MICR, micr);
} else {
micr = phy_read(phydev, MII_DP83640_MICR);
if (micr < 0)
return micr;
micr &=
~(MII_DP83640_MICR_OE |
MII_DP83640_MICR_IE);
err = phy_write(phydev, MII_DP83640_MICR, micr);
if (err < 0)
return err;
misr = phy_read(phydev, MII_DP83640_MISR);
if (misr < 0)
return misr;
misr &=
~(MII_DP83640_MISR_ANC_INT_EN |
MII_DP83640_MISR_DUP_INT_EN |
MII_DP83640_MISR_SPD_INT_EN |
MII_DP83640_MISR_LINK_INT_EN);
return phy_write(phydev, MII_DP83640_MISR, misr);
}
}
static int dp83640_hwtstamp(struct phy_device *phydev, struct ifreq *ifr)
{
struct dp83640_private *dp83640 = phydev->priv;
@ -1253,11 +1327,13 @@ static struct phy_driver dp83640_driver = {
.phy_id_mask = 0xfffffff0,
.name = "NatSemi DP83640",
.features = PHY_BASIC_FEATURES,
.flags = 0,
.flags = PHY_HAS_INTERRUPT,
.probe = dp83640_probe,
.remove = dp83640_remove,
.config_aneg = genphy_config_aneg,
.read_status = genphy_read_status,
.ack_interrupt = dp83640_ack_interrupt,
.config_intr = dp83640_config_intr,
.ts_info = dp83640_ts_info,
.hwtstamp = dp83640_hwtstamp,
.rxtstamp = dp83640_rxtstamp,