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net: phy: broadcom: implement .disable_autonomous_eee for BCM54xx

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Implement the .disable_autonomous_eee callback for the BCM54210E.

In AutogrEEEn mode the PHY manages EEE autonomously. Clearing the
AutogrEEEn enable bit in MII_BUF_CNTL_0 switches the PHY to Native
EEE mode.

Signed-off-by: Nicolai Buchwitz <nb@tipi-net.de>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20260406-devel-autonomous-eee-v1-2-b335e7143711@tipi-net.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Nicolai Buchwitz
2026-04-06 09:13:08 +02:00
committed by Jakub Kicinski
parent 7ef629b458
commit bcb3e89fc0
2 changed files with 10 additions and 0 deletions
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7
drivers/net/phy/broadcom.c
View File

@@ -1452,6 +1452,12 @@ static int bcm54811_read_status(struct phy_device *phydev)
return genphy_read_status(phydev);
}
static int bcm54xx_disable_autonomous_eee(struct phy_device *phydev)
{
return bcm_phy_modify_exp(phydev, BCM54XX_TOP_MISC_MII_BUF_CNTL0,
BCM54XX_MII_BUF_CNTL0_AUTOGREEEN_EN, 0);
}
static struct phy_driver broadcom_drivers[] = {
{
PHY_ID_MATCH_MODEL(PHY_ID_BCM5411),
@@ -1495,6 +1501,7 @@ static struct phy_driver broadcom_drivers[] = {
.get_wol = bcm54xx_phy_get_wol,
.set_wol = bcm54xx_phy_set_wol,
.led_brightness_set = bcm_phy_led_brightness_set,
.disable_autonomous_eee = bcm54xx_disable_autonomous_eee,
}, {
PHY_ID_MATCH_MODEL(PHY_ID_BCM5461),
.name = "Broadcom BCM5461",

3
include/linux/brcmphy.h
View File

@@ -266,6 +266,9 @@
#define BCM54XX_TOP_MISC_IDDQ_SD (1 << 2)
#define BCM54XX_TOP_MISC_IDDQ_SR (1 << 3)
#define BCM54XX_TOP_MISC_MII_BUF_CNTL0 (MII_BCM54XX_EXP_SEL_TOP + 0x00)
#define BCM54XX_MII_BUF_CNTL0_AUTOGREEEN_EN BIT(0)
#define BCM54XX_TOP_MISC_LED_CTL (MII_BCM54XX_EXP_SEL_TOP + 0x0C)
#define BCM54XX_LED4_SEL_INTR BIT(1)