github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-24 15:12:13 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

net: phy: tja11xx: enable PHY in sleep mode for TJA1102S

Browse Source 
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: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dimitri Fedrau <dimitri.fedrau@liebherr.com>
Link: https://patch.msgid.link/20250304-tja1102s-support-v2-2-cd3e61ab920f@liebherr.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Dimitri Fedrau 2025-03-04 19:37:27 +01:00 committed by Jakub Kicinski
parent 5d7610577f
commit 5b3178c452
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/net/phy/nxp-tja11xx.c
View File

@ -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;
}