* [PATCH net-next] net: phy: micrel: make sure the factory test bit is cleared
@ 2019-04-26 16:41 Antoine Tenart
2019-04-26 16:47 ` Andrew Lunn
2019-04-30 3:17 ` David Miller
0 siblings, 2 replies; 3+ messages in thread
From: Antoine Tenart @ 2019-04-26 16:41 UTC (permalink / raw)
To: davem, andrew, f.fainelli, hkallweit1
Cc: Antoine Tenart, netdev, linux-kernel, thomas.petazzoni,
nicolas.ferre, ludovic.desroches, alexandre.belloni
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). This patch makes sure this factory test
bit is cleared in config_init().
Tested-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
---
drivers/net/phy/micrel.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index ddd6b6374d8c..3c8186f269f9 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -28,6 +28,7 @@
/* Operation Mode Strap Override */
#define MII_KSZPHY_OMSO 0x16
+#define KSZPHY_OMSO_FACTORY_TEST BIT(15)
#define KSZPHY_OMSO_B_CAST_OFF BIT(9)
#define KSZPHY_OMSO_NAND_TREE_ON BIT(5)
#define KSZPHY_OMSO_RMII_OVERRIDE BIT(1)
@@ -340,6 +341,18 @@ static int ksz8041_config_aneg(struct phy_device *phydev)
return genphy_config_aneg(phydev);
}
+static int ksz8081_config_init(struct phy_device *phydev)
+{
+ /* KSZPHY_OMSO_FACTORY_TEST is set at de-assertion of the reset line
+ * based on the RXER (KSZ8081RNA/RND) or TXC (KSZ8081MNX/RNB) pin. If a
+ * pull-down is missing, the factory test mode should be cleared by
+ * manually writing a 0.
+ */
+ phy_clear_bits(phydev, MII_KSZPHY_OMSO, KSZPHY_OMSO_FACTORY_TEST);
+
+ return kszphy_config_init(phydev);
+}
+
static int ksz8061_config_init(struct phy_device *phydev)
{
int ret;
@@ -1038,7 +1051,7 @@ static struct phy_driver ksphy_driver[] = {
/* PHY_BASIC_FEATURES */
.driver_data = &ksz8081_type,
.probe = kszphy_probe,
- .config_init = kszphy_config_init,
+ .config_init = ksz8081_config_init,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
.get_sset_count = kszphy_get_sset_count,
--
2.21.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH net-next] net: phy: micrel: make sure the factory test bit is cleared
2019-04-26 16:41 [PATCH net-next] net: phy: micrel: make sure the factory test bit is cleared Antoine Tenart
@ 2019-04-26 16:47 ` Andrew Lunn
2019-04-30 3:17 ` David Miller
1 sibling, 0 replies; 3+ messages in thread
From: Andrew Lunn @ 2019-04-26 16:47 UTC (permalink / raw)
To: Antoine Tenart
Cc: davem, f.fainelli, hkallweit1, netdev, linux-kernel,
thomas.petazzoni, nicolas.ferre, ludovic.desroches,
alexandre.belloni
On Fri, Apr 26, 2019 at 06:41:23PM +0200, Antoine Tenart wrote:
> 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). This patch makes sure this factory test
> bit is cleared in config_init().
>
> Tested-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
> Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH net-next] net: phy: micrel: make sure the factory test bit is cleared
2019-04-26 16:41 [PATCH net-next] net: phy: micrel: make sure the factory test bit is cleared Antoine Tenart
2019-04-26 16:47 ` Andrew Lunn
@ 2019-04-30 3:17 ` David Miller
1 sibling, 0 replies; 3+ messages in thread
From: David Miller @ 2019-04-30 3:17 UTC (permalink / raw)
To: antoine.tenart
Cc: andrew, f.fainelli, hkallweit1, netdev, linux-kernel,
thomas.petazzoni, nicolas.ferre, ludovic.desroches,
alexandre.belloni
From: Antoine Tenart <antoine.tenart@bootlin.com>
Date: Fri, 26 Apr 2019 18:41:23 +0200
> 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). This patch makes sure this factory test
> bit is cleared in config_init().
>
> Tested-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
> Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Applied.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-04-26 16:41 [PATCH net-next] net: phy: micrel: make sure the factory test bit is cleared Antoine Tenart
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