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Message-Id: <1354652498-16573-1-git-send-email-stephan.gatzka@gmail.com>
Date: Tue, 4 Dec 2012 21:21:38 +0100
From: Stephan Gatzka <stephan.gatzka@...il.com>
To: netdev@...r.kernel.org, davem@...emloft.net,
richardcochran@...il.com
Cc: Stephan Gatzka <stephan.gatzka@...il.com>
Subject: [Patch 1/1] net/phy: Add interrupt support for dp83640 phy.
Added functions for ack_interrupt and config_intr. Tested on an mpc5200b
powerpc board.
Signed-off-by: Stephan Gatzka <stephan.gatzka@...il.com>
---
drivers/net/phy/dp83640.c | 78 ++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 77 insertions(+), 1 deletion(-)
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index 24e05c4..7490b6c 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c
@@ -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,
--
1.7.9.5
--
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