From mboxrd@z Thu Jan 1 00:00:00 1970 From: Florian Fainelli Subject: [PATCH net-next v2 5/7] net: bcmgenet: implement GPHY power down sequence Date: Mon, 23 Mar 2015 15:09:55 -0700 Message-ID: <1427148597-28337-6-git-send-email-f.fainelli@gmail.com> References: <1427148597-28337-1-git-send-email-f.fainelli@gmail.com> Cc: davem@davemloft.net, Florian Fainelli , jaedon.shin@gmail.com, pgynther@google.com To: netdev@vger.kernel.org Return-path: Received: from mail-pa0-f48.google.com ([209.85.220.48]:34859 "EHLO mail-pa0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753724AbbCWWLZ (ORCPT ); Mon, 23 Mar 2015 18:11:25 -0400 Received: by pagv19 with SMTP id v19so29493158pag.2 for ; Mon, 23 Mar 2015 15:11:24 -0700 (PDT) In-Reply-To: <1427148597-28337-1-git-send-email-f.fainelli@gmail.com> Sender: netdev-owner@vger.kernel.org List-ID: 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 --- 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) -- 2.1.0