From: Heiner Kallweit <hkallweit1@gmail.com>
To: Alexandru Ardelean <alexandru.ardelean@analog.com>,
netdev@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: davem@davemloft.net, robh+dt@kernel.org, mark.rutland@arm.com,
f.fainelli@gmail.com, andrew@lunn.ch
Subject: Re: [PATCH 14/16] net: phy: adin: make sure down-speed auto-neg is enabled
Date: Tue, 6 Aug 2019 07:52:48 +0200 [thread overview]
Message-ID: <baac3842-bd9c-75af-83e3-9e89def1c429@gmail.com> (raw)
In-Reply-To: <20190805165453.3989-15-alexandru.ardelean@analog.com>
On 05.08.2019 18:54, Alexandru Ardelean wrote:
> Down-speed auto-negotiation may not always be enabled, in which case the
> PHY won't down-shift to 100 or 10 during auto-negotiation.
>
> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
> ---
> drivers/net/phy/adin.c | 27 +++++++++++++++++++++++++++
> 1 file changed, 27 insertions(+)
>
> diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c
> index 86848444bd98..a1f3456a8504 100644
> --- a/drivers/net/phy/adin.c
> +++ b/drivers/net/phy/adin.c
> @@ -32,6 +32,13 @@
> #define ADIN1300_NRG_PD_TX_EN BIT(2)
> #define ADIN1300_NRG_PD_STATUS BIT(1)
>
> +#define ADIN1300_PHY_CTRL2 0x0016
> +#define ADIN1300_DOWNSPEED_AN_100_EN BIT(11)
> +#define ADIN1300_DOWNSPEED_AN_10_EN BIT(10)
> +#define ADIN1300_GROUP_MDIO_EN BIT(6)
> +#define ADIN1300_DOWNSPEEDS_EN \
> + (ADIN1300_DOWNSPEED_AN_100_EN | ADIN1300_DOWNSPEED_AN_10_EN)
> +
> #define ADIN1300_INT_MASK_REG 0x0018
> #define ADIN1300_INT_MDIO_SYNC_EN BIT(9)
> #define ADIN1300_INT_ANEG_STAT_CHNG_EN BIT(8)
> @@ -425,6 +432,22 @@ static int adin_config_mdix(struct phy_device *phydev)
> return phy_write(phydev, ADIN1300_PHY_CTRL1, reg);
> }
>
> +static int adin_config_downspeeds(struct phy_device *phydev)
> +{
> + int reg;
> +
> + reg = phy_read(phydev, ADIN1300_PHY_CTRL2);
> + if (reg < 0)
> + return reg;
> +
> + if ((reg & ADIN1300_DOWNSPEEDS_EN) == ADIN1300_DOWNSPEEDS_EN)
> + return 0;
> +
> + reg |= ADIN1300_DOWNSPEEDS_EN;
> +
> + return phy_write(phydev, ADIN1300_PHY_CTRL2, reg);
Using phy_set_bits() would be easier.
> +}
> +
> static int adin_config_aneg(struct phy_device *phydev)
> {
> int ret;
> @@ -433,6 +456,10 @@ static int adin_config_aneg(struct phy_device *phydev)
> if (ret)
> return ret;
>
> + ret = adin_config_downspeeds(phydev);
> + if (ret < 0)
> + return ret;
> +
> return genphy_config_aneg(phydev);
> }
>
>
next prev parent reply other threads:[~2019-08-06 5:53 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-05 16:54 [PATCH 00/16] net: phy: adin: add support for Analog Devices PHYs Alexandru Ardelean
2019-08-05 16:54 ` [PATCH 01/16] " Alexandru Ardelean
2019-08-05 14:16 ` Andrew Lunn
2019-08-06 6:32 ` Ardelean, Alexandru
2019-08-05 15:17 ` Andrew Lunn
2019-08-06 6:35 ` Ardelean, Alexandru
2019-08-05 20:54 ` Heiner Kallweit
2019-08-06 6:35 ` Ardelean, Alexandru
2019-08-05 16:54 ` [PATCH 02/16] net: phy: adin: hook genphy_{suspend,resume} into the driver Alexandru Ardelean
2019-08-05 14:17 ` Andrew Lunn
2019-08-05 16:54 ` [PATCH 03/16] net: phy: adin: add support for interrupts Alexandru Ardelean
2019-08-05 14:21 ` Andrew Lunn
2019-08-06 6:37 ` Ardelean, Alexandru
2019-08-05 21:02 ` Heiner Kallweit
2019-08-06 6:38 ` Ardelean, Alexandru
2019-08-05 16:54 ` [PATCH 04/16] net: phy: adin: add {write,read}_mmd hooks Alexandru Ardelean
2019-08-05 14:25 ` Andrew Lunn
2019-08-06 6:38 ` Ardelean, Alexandru
2019-08-05 16:54 ` [PATCH 05/16] net: phy: adin: configure RGMII/RMII/MII modes on config Alexandru Ardelean
2019-08-05 14:39 ` Andrew Lunn
2019-08-06 6:43 ` Ardelean, Alexandru
2019-08-05 16:54 ` [PATCH 06/16] net: phy: adin: support PHY mode converters Alexandru Ardelean
2019-08-05 14:51 ` Andrew Lunn
2019-08-06 6:47 ` Ardelean, Alexandru
2019-08-06 15:39 ` Andrew Lunn
2019-08-07 8:00 ` Ardelean, Alexandru
2019-08-07 13:20 ` Andrew Lunn
2019-08-05 16:54 ` [PATCH 07/16] net: phy: adin: make RGMII internal delays configurable Alexandru Ardelean
2019-08-05 16:54 ` [PATCH 08/16] net: phy: adin: make RMII fifo depth configurable Alexandru Ardelean
2019-08-05 16:54 ` [PATCH 09/16] net: phy: adin: add support MDI/MDIX/Auto-MDI selection Alexandru Ardelean
2019-08-05 16:54 ` [PATCH 10/16] net: phy: adin: add EEE translation layer for Clause 22 Alexandru Ardelean
2019-08-05 22:11 ` Andrew Lunn
2019-08-06 6:47 ` Ardelean, Alexandru
2019-08-05 16:54 ` [PATCH 11/16] net: phy: adin: PHY reset mechanisms Alexandru Ardelean
2019-08-05 15:15 ` Andrew Lunn
2019-08-06 6:50 ` Ardelean, Alexandru
2019-08-05 16:54 ` [PATCH 12/16] net: phy: adin: read EEE setting from device-tree Alexandru Ardelean
2019-08-05 15:19 ` Andrew Lunn
2019-08-06 6:52 ` Ardelean, Alexandru
2019-08-05 16:54 ` [PATCH 13/16] net: phy: adin: implement Energy Detect Powerdown mode Alexandru Ardelean
2019-08-05 16:54 ` [PATCH 14/16] net: phy: adin: make sure down-speed auto-neg is enabled Alexandru Ardelean
2019-08-05 15:22 ` Andrew Lunn
2019-08-06 6:53 ` Ardelean, Alexandru
2019-08-06 5:52 ` Heiner Kallweit [this message]
2019-08-06 6:53 ` Ardelean, Alexandru
2019-08-05 16:54 ` [PATCH 15/16] net: phy: adin: add ethtool get_stats support Alexandru Ardelean
2019-08-05 15:28 ` Andrew Lunn
2019-08-06 7:11 ` Ardelean, Alexandru
2019-08-06 15:46 ` Andrew Lunn
2019-08-07 7:52 ` Ardelean, Alexandru
2019-08-05 15:30 ` Andrew Lunn
2019-08-06 7:18 ` Ardelean, Alexandru
2019-08-05 16:54 ` [PATCH 16/16] dt-bindings: net: add bindings for ADIN PHY driver Alexandru Ardelean
2019-08-05 14:11 ` Andrew Lunn
2019-08-06 7:03 ` Ardelean, Alexandru
2019-08-06 11:47 ` Ardelean, Alexandru
2019-08-05 14:27 ` Andrew Lunn
2019-08-06 6:57 ` Ardelean, Alexandru
2019-08-06 15:04 ` Rob Herring
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