Commit 5b3178c4 authored by Dimitri Fedrau's avatar Dimitri Fedrau Committed by Jakub Kicinski
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net: phy: tja11xx: enable PHY in sleep mode for TJA1102S 



Due to pin strapping the PHY maybe disabled per default. TJA1102 devices
can be enabled by setting the PHY_EN bit. Support is provided for TJA1102S
devices but can be easily added for TJA1102 too.

Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarDimitri Fedrau <dimitri.fedrau@liebherr.com>
Link: https://patch.msgid.link/20250304-tja1102s-support-v2-2-cd3e61ab920f@liebherr.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 5d761057

drivers/net/phy/nxp-tja11xx.c

+12 −0
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ 
#define MII_ECTRL_POWER_MODE_MASK	GENMASK(14, 11)

#define MII_ECTRL_POWER_MODE_NO_CHANGE	(0x0 << 11)

#define MII_ECTRL_POWER_MODE_NORMAL	(0x3 << 11)

#define MII_ECTRL_POWER_MODE_SLEEP	(0xa << 11)

#define MII_ECTRL_POWER_MODE_STANDBY	(0xc << 11)

#define MII_ECTRL_CABLE_TEST		BIT(5)

#define MII_ECTRL_CONFIG_EN		BIT(2)
@@ -79,6 +80,9 @@ 
#define MII_COMMCFG			27

#define MII_COMMCFG_AUTO_OP		BIT(15)



#define MII_CFG3			28

#define MII_CFG3_PHY_EN			BIT(0)



/* Configure REF_CLK as input in RMII mode */

#define TJA110X_RMII_MODE_REFCLK_IN       BIT(0)
@@ -180,6 +184,14 @@ static int tja11xx_wakeup(struct phy_device *phydev) 
			return ret;



		return tja11xx_enable_link_control(phydev);

	case MII_ECTRL_POWER_MODE_SLEEP:

		switch (phydev->phy_id & PHY_ID_MASK) {

		case PHY_ID_TJA1102S:

			/* Enable PHY, maybe it is disabled due to pin strapping */

			return phy_set_bits(phydev, MII_CFG3, MII_CFG3_PHY_EN);

		default:

			return 0;

		}

	default:

		break;

	}