Thread (4 messages) flat view 4 messages, 4 authors, 2021-02-09
STALE2018d REVIEWED: 1 (1M)

1 review trailer.

[PATCH net-next v2] net: phy: broadcom: remove BCM5482 1000Base-BX support

From: Michael Walle <hidden>
Date: 2021-02-08 23:18:26
Also in: lkml
Subsystem: broadcom ethernet phy drivers, ethernet phy library, networking drivers, the rest · Maintainers: Florian Fainelli, Andrew Lunn, Heiner Kallweit, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

It is nowhere used in the kernel. It also seems to be lacking the
proper fiber advertise flags. Remove it.

Signed-off-by: Michael Walle <redacted>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
---
changes since v1:
 - added queue to subject
 - reworded 1000BX to 1000Base-BX

 drivers/net/phy/broadcom.c | 93 +-------------------------------------
 1 file changed, 1 insertion(+), 92 deletions(-)
diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index 8a4ec3222168..3142ba768313 100644
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -361,96 +361,6 @@ static int bcm54811_config_init(struct phy_device *phydev)
 	return err;
 }
 
-static int bcm5482_config_init(struct phy_device *phydev)
-{
-	int err, reg;
-
-	err = bcm54xx_config_init(phydev);
-
-	if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
-		/*
-		 * Enable secondary SerDes and its use as an LED source
-		 */
-		reg = bcm_phy_read_shadow(phydev, BCM5482_SHD_SSD);
-		bcm_phy_write_shadow(phydev, BCM5482_SHD_SSD,
-				     reg |
-				     BCM5482_SHD_SSD_LEDM |
-				     BCM5482_SHD_SSD_EN);
-
-		/*
-		 * Enable SGMII slave mode and auto-detection
-		 */
-		reg = BCM5482_SSD_SGMII_SLAVE | MII_BCM54XX_EXP_SEL_SSD;
-		err = bcm_phy_read_exp(phydev, reg);
-		if (err < 0)
-			return err;
-		err = bcm_phy_write_exp(phydev, reg, err |
-					BCM5482_SSD_SGMII_SLAVE_EN |
-					BCM5482_SSD_SGMII_SLAVE_AD);
-		if (err < 0)
-			return err;
-
-		/*
-		 * Disable secondary SerDes powerdown
-		 */
-		reg = BCM5482_SSD_1000BX_CTL | MII_BCM54XX_EXP_SEL_SSD;
-		err = bcm_phy_read_exp(phydev, reg);
-		if (err < 0)
-			return err;
-		err = bcm_phy_write_exp(phydev, reg,
-					err & ~BCM5482_SSD_1000BX_CTL_PWRDOWN);
-		if (err < 0)
-			return err;
-
-		/*
-		 * Select 1000BASE-X register set (primary SerDes)
-		 */
-		reg = bcm_phy_read_shadow(phydev, BCM54XX_SHD_MODE);
-		bcm_phy_write_shadow(phydev, BCM54XX_SHD_MODE,
-				     reg | BCM54XX_SHD_MODE_1000BX);
-
-		/*
-		 * LED1=ACTIVITYLED, LED3=LINKSPD[2]
-		 * (Use LED1 as secondary SerDes ACTIVITY LED)
-		 */
-		bcm_phy_write_shadow(phydev, BCM5482_SHD_LEDS1,
-			BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_ACTIVITYLED) |
-			BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_LINKSPD2));
-
-		/*
-		 * Auto-negotiation doesn't seem to work quite right
-		 * in this mode, so we disable it and force it to the
-		 * right speed/duplex setting.  Only 'link status'
-		 * is important.
-		 */
-		phydev->autoneg = AUTONEG_DISABLE;
-		phydev->speed = SPEED_1000;
-		phydev->duplex = DUPLEX_FULL;
-	}
-
-	return err;
-}
-
-static int bcm5482_read_status(struct phy_device *phydev)
-{
-	int err;
-
-	err = genphy_read_status(phydev);
-
-	if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
-		/*
-		 * Only link status matters for 1000Base-X mode, so force
-		 * 1000 Mbit/s full-duplex status
-		 */
-		if (phydev->link) {
-			phydev->speed = SPEED_1000;
-			phydev->duplex = DUPLEX_FULL;
-		}
-	}
-
-	return err;
-}
-
 static int bcm5481_config_aneg(struct phy_device *phydev)
 {
 	struct device_node *np = phydev->mdio.dev.of_node;
@@ -800,8 +710,7 @@ static struct phy_driver broadcom_drivers[] = {
 	.phy_id_mask	= 0xfffffff0,
 	.name		= "Broadcom BCM5482",
 	/* PHY_GBIT_FEATURES */
-	.config_init	= bcm5482_config_init,
-	.read_status	= bcm5482_read_status,
+	.config_init	= bcm54xx_config_init,
 	.config_intr	= bcm_phy_config_intr,
 	.handle_interrupt = bcm_phy_handle_interrupt,
 }, {
-- 
2.20.1
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