net: bcmgenet: fix GPHY power-up sequence
We were missing a number of extra steps and delays to power-up the GPHY, update
the sequence to reflect the proper procedure here.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c
index 3fdbf57..c26c075 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@ -179,14 +179,18 @@
if (enable) {
reg = bcmgenet_ext_readl(priv, EXT_GPHY_CTRL);
- reg &= ~(EXT_CFG_IDDQ_BIAS | EXT_CFG_PWR_DOWN | EXT_CK25_DIS);
+ reg &= ~EXT_CK25_DIS;
+ bcmgenet_ext_writel(priv, reg, EXT_GPHY_CTRL);
+ mdelay(1);
+
+ reg &= ~(EXT_CFG_IDDQ_BIAS | EXT_CFG_PWR_DOWN);
reg |= EXT_GPHY_RESET;
bcmgenet_ext_writel(priv, reg, EXT_GPHY_CTRL);
- mdelay(2);
+ mdelay(1);
reg &= ~EXT_GPHY_RESET;
bcmgenet_ext_writel(priv, reg, EXT_GPHY_CTRL);
- udelay(20);
+ udelay(60);
}
}