From: Nicolas Ferre <nicolas.fe...@microchip.com>
The KSZ8081 PHY has a factory test mode which is set at the de-assertion
of the reset line based on the RXER (KSZ8081RNA/RND) or TXC
(KSZ8081MNX/RNB) pin. If a pull-down is missing, or if the pin has a
pull-up, the factory test mode should be cleared by manually writing a 0
(according to the datasheet).
Create another ksz8081_config function to handle this case.
Suggested-by: Antoine Tenart <antoine.ten...@bootlin.com>
Signed-off-by: Nicolas Ferre <nicolas.fe...@microchip.com>
---
drivers/net/phy/micrel_ksz8xxx.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/drivers/net/phy/micrel_ksz8xxx.c b/drivers/net/phy/micrel_ksz8xxx.c
index daa57ce..5340ea0 100644
--- a/drivers/net/phy/micrel_ksz8xxx.c
+++ b/drivers/net/phy/micrel_ksz8xxx.c
@@ -24,6 +24,7 @@ static struct phy_driver KSZ804_driver = {
};
#define MII_KSZPHY_OMSO 0x16
+#define KSZPHY_OMSO_FACTORY_TEST (1 << 15)
#define KSZPHY_OMSO_B_CAST_OFF (1 << 9)
static int ksz_genconfig_bcastoff(struct phy_device *phydev)
@@ -80,12 +81,30 @@ static struct phy_driver KSZ8051_driver = {
.shutdown = &genphy_shutdown,
};
+static int ksz8081_config(struct phy_device *phydev)
+{
+ int ret;
+
+ ret = phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO);
+ if (ret < 0)
+ return ret;
+
+ ret &= ~KSZPHY_OMSO_FACTORY_TEST;
+
+ ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO,
+ ret | KSZPHY_OMSO_B_CAST_OFF);
+ if (ret < 0)
+ return ret;
+
+ return genphy_config(phydev);
+}
+
static struct phy_driver KSZ8081_driver = {
.name = "Micrel KSZ8081",
.uid = 0x221560,
.mask = 0xfffff0,
.features = PHY_BASIC_FEATURES,
- .config = &ksz_genconfig_bcastoff,
+ .config = &ksz8081_config,
.startup = &genphy_startup,
.shutdown = &genphy_shutdown,
};
--
2.7.4
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