From 8c83c0303c0eaa5f5323d08ffe1f786759e509be Mon Sep 17 00:00:00 2001 From: Dongpo Li Date: Mon, 22 Aug 2016 21:03:29 +0800 Subject: [PATCH] net: mii: check phy advertising register when geting link status When phy autoneg on, the link speed and duplex should be determined by phy advertising register and phy link partner ability register. Check phy advertising register when geting phy link speed and duplex if autoneg on. Signed-off-by: Dongpo Li Cc: Joe Hershberger Acked-by: Joe Hershberger --- common/miiphyutil.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/common/miiphyutil.c b/common/miiphyutil.c index 08aa854..d8ebb38 100644 --- a/common/miiphyutil.c +++ b/common/miiphyutil.c @@ -380,7 +380,7 @@ int miiphy_reset(const char *devname, unsigned char addr) */ int miiphy_speed(const char *devname, unsigned char addr) { - u16 bmcr, anlpar; + u16 bmcr, anlpar, adv; #if defined(CONFIG_PHY_GIGE) u16 btsr; @@ -417,7 +417,12 @@ int miiphy_speed(const char *devname, unsigned char addr) printf("PHY AN speed"); goto miiphy_read_failed; } - return (anlpar & LPA_100) ? _100BASET : _10BASET; + + if (miiphy_read(devname, addr, MII_ADVERTISE, &adv)) { + puts("PHY AN adv speed"); + goto miiphy_read_failed; + } + return ((anlpar & adv) & LPA_100) ? _100BASET : _10BASET; } /* Get speed from basic control settings. */ return (bmcr & BMCR_SPEED100) ? _100BASET : _10BASET; @@ -433,7 +438,7 @@ miiphy_read_failed: */ int miiphy_duplex(const char *devname, unsigned char addr) { - u16 bmcr, anlpar; + u16 bmcr, anlpar, adv; #if defined(CONFIG_PHY_GIGE) u16 btsr; @@ -475,7 +480,12 @@ int miiphy_duplex(const char *devname, unsigned char addr) puts("PHY AN duplex"); goto miiphy_read_failed; } - return (anlpar & (LPA_10FULL | LPA_100FULL)) ? + + if (miiphy_read(devname, addr, MII_ADVERTISE, &adv)) { + puts("PHY AN adv duplex"); + goto miiphy_read_failed; + } + return ((anlpar & adv) & (LPA_10FULL | LPA_100FULL)) ? FULL : HALF; } /* Get speed from basic control settings. */ -- 2.7.4