From a9d608c153a28758e0cd11c907edbaf5cce47abc Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 23 Mar 2015 15:09:55 -0700 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/genet/bcmmii.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c index c26c0757d755..3320219003fb 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmmii.c +++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c @@ -177,8 +177,8 @@ static void bcmgenet_phy_power_set(struct net_device *dev, bool enable) 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 @@ static void bcmgenet_phy_power_set(struct net_device *dev, bool enable) 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) -- 2.11.0