net: bcmgenet: implement GPHY power down sequence
Implement the GPHY power down sequence by setting all power down bits, putting
the GPHY in reset, and finally cutting the 25Mhz reference clock.
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 c26c075..3320219 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@ -177,8 +177,8 @@
if (!GENET_IS_V4(priv))
return;
+ reg = bcmgenet_ext_readl(priv, EXT_GPHY_CTRL);
if (enable) {
- reg = bcmgenet_ext_readl(priv, EXT_GPHY_CTRL);
reg &= ~EXT_CK25_DIS;
bcmgenet_ext_writel(priv, reg, EXT_GPHY_CTRL);
mdelay(1);
@@ -189,9 +189,14 @@
mdelay(1);
reg &= ~EXT_GPHY_RESET;
+ } else {
+ reg |= EXT_CFG_IDDQ_BIAS | EXT_CFG_PWR_DOWN | EXT_GPHY_RESET;
bcmgenet_ext_writel(priv, reg, EXT_GPHY_CTRL);
- udelay(60);
+ mdelay(1);
+ reg |= EXT_CK25_DIS;
}
+ bcmgenet_ext_writel(priv, reg, EXT_GPHY_CTRL);
+ udelay(60);
}
static void bcmgenet_internal_phy_setup(struct net_device *dev)