diff options
| author |   Florian Fainelli <f.fainelli@gmail.com> | 2014-02-17 13:34:03 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-02-17 16:40:09 -0500 |
| commit | 9df81dd7583d14862d0cfb673a941b261f3b2112 (patch) | |
| tree | a790b50329b80f6a6b29f745fd2baad8b4d1944f /drivers/net/phy/phy_device.c | |
| parent | net: phy: move PHY software reset to genphy_soft_reset (diff) | |
| download | linux-dev-9df81dd7583d14862d0cfb673a941b261f3b2112.tar.xz linux-dev-9df81dd7583d14862d0cfb673a941b261f3b2112.zip | |
net: phy: allow PHY drivers to implement their own software reset
As pointed out by Shaohui, most 10G PHYs out there have a non-standard
compliant software reset sequence, eventually something much more
complex than just toggling the BMCR_RESET bit. Allow PHY driver to
implement their own soft_reset() callback to deal with that. If no
callback is provided, call into genphy_soft_reset() which makes sure the
existing behavior is kept intact.
Reported-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/phy_device.c')
| -rw-r--r-- | drivers/net/phy/phy_device.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 7c21b8214bb9..a70b604ac644 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -535,12 +535,16 @@ static int phy_poll_reset(struct phy_device *phydev) int phy_init_hw(struct phy_device *phydev) { - int ret; + int ret = 0; if (!phydev->drv || !phydev->drv->config_init) return 0; - ret = genphy_soft_reset(phydev); + if (phydev->drv->soft_reset) + ret = phydev->drv->soft_reset(phydev); + else + ret = genphy_soft_reset(phydev); + if (ret < 0) return ret; @@ -1108,6 +1112,12 @@ static int genphy_config_init(struct phy_device *phydev) return 0; } +static int gen10g_soft_reset(struct phy_device *phydev) +{ + /* Do nothing for now */ + return 0; +} + static int gen10g_config_init(struct phy_device *phydev) { /* Temporarily just say we support everything */ @@ -1282,6 +1292,7 @@ static struct phy_driver genphy_driver[] = { .phy_id = 0xffffffff, .phy_id_mask = 0xffffffff, .name = "Generic PHY", + .soft_reset = genphy_soft_reset, .config_init = genphy_config_init, .features = 0, .config_aneg = genphy_config_aneg, @@ -1294,6 +1305,7 @@ static struct phy_driver genphy_driver[] = { .phy_id = 0xffffffff, .phy_id_mask = 0xffffffff, .name = "Generic 10G PHY", + .soft_reset = gen10g_soft_reset, .config_init = gen10g_config_init, .features = 0, .config_aneg = gen10g_config_aneg, |