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net: bcmgenet: update PHY power down

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The disable sequence in bcmgenet_phy_power_set() is updated to
match the inverse sequence and timing (and spacing) of the
enable sequence. This ensures that LEDs driven by the GENET IP
are disabled when the GPHY is powered down.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250614025817.3808354-1-florian.fainelli@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Doug Berger 2025-06-13 19:58:16 -07:00 committed by Jakub Kicinski
parent 10f3829a13
commit 90b4e1cf6d
1 changed files with 7 additions and 2 deletions
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9
drivers/net/ethernet/broadcom/genet/bcmmii.c
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@ -169,10 +169,15 @@ void bcmgenet_phy_power_set(struct net_device *dev, bool enable)
reg &= ~EXT_GPHY_RESET;
} else {
reg |= EXT_CFG_IDDQ_BIAS | EXT_CFG_PWR_DOWN |
EXT_GPHY_RESET | EXT_CFG_IDDQ_GLOBAL_PWR;
reg |= EXT_GPHY_RESET;
bcmgenet_ext_writel(priv, reg, EXT_GPHY_CTRL);
mdelay(1);
reg |= EXT_CFG_IDDQ_BIAS | EXT_CFG_PWR_DOWN |
EXT_CFG_IDDQ_GLOBAL_PWR;
bcmgenet_ext_writel(priv, reg, EXT_GPHY_CTRL);
mdelay(1);
reg |= EXT_CK25_DIS;
}
bcmgenet_ext_writel(priv, reg, EXT_GPHY_CTRL);