From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Nithin Nayak Sujir" Subject: [PATCH net] tg3: Don't turn off led on 5719 serdes port 0 Date: Fri, 30 Aug 2013 17:01:36 -0700 Message-ID: <1377907296-25737-1-git-send-email-nsujir@broadcom.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, "Nithin Sujir" , "Michael Chan" To: davem@davemloft.net Return-path: Received: from mms2.broadcom.com ([216.31.210.18]:2032 "EHLO mms2.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751896Ab3HaABp (ORCPT ); Fri, 30 Aug 2013 20:01:45 -0400 Sender: netdev-owner@vger.kernel.org List-ID: From: Nithin Sujir Turning off led on port 0 of the 5719 serdes causes all other ports to lose power and stop functioning. Add tg3_phy_led_bug() function to check for this condition. We use a switch() in tg3_phy_led_bug() for consistency with the tg3_phy_power_bug() function. Signed-off-by: Nithin Nayak Sujir Signed-off-by: Michael Chan --- drivers/net/ethernet/broadcom/tg3.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 2e55ee2..5701f3d 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -3030,6 +3030,19 @@ static bool tg3_phy_power_bug(struct tg3 *tp) return false; } +static bool tg3_phy_led_bug(struct tg3 *tp) +{ + switch (tg3_asic_rev(tp)) { + case ASIC_REV_5719: + if ((tp->phy_flags & TG3_PHYFLG_MII_SERDES) && + !tp->pci_fn) + return true; + return false; + } + + return false; +} + static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power) { u32 val; @@ -3077,8 +3090,9 @@ static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power) } return; } else if (do_low_power) { - tg3_writephy(tp, MII_TG3_EXT_CTRL, - MII_TG3_EXT_CTRL_FORCE_LED_OFF); + if (!tg3_phy_led_bug(tp)) + tg3_writephy(tp, MII_TG3_EXT_CTRL, + MII_TG3_EXT_CTRL_FORCE_LED_OFF); val = MII_TG3_AUXCTL_PCTL_100TX_LPWR | MII_TG3_AUXCTL_PCTL_SPR_ISOLATE | -- 1.8.1.4