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net: phy: introduce a quirk PHY_FLAG_BROKEN_RESET

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Current driver always performs a phy soft reset when connecting the phy
device, but soft reset is not always supported by a phy device, so
introduce a quirk PHY_FLAG_BROKEN_RESET to let such a phy device to skip
soft reset. This commit uses 'flags' of phy device structure to store the
quirk.

Signed-off-by: Shaohui Xie <Shaohui.Xie@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Shaohui Xie 2016-01-28 15:55:46 +08:00 committed by Joe Hershberger
parent ff7bd212cb
commit ddcd1f3084
2 changed files with 5 additions and 0 deletions
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3
drivers/net/phy/phy.c
View File

@ -743,6 +743,9 @@ int phy_reset(struct phy_device *phydev)
int timeout = 500;
int devad = MDIO_DEVAD_NONE;
if (phydev->flags & PHY_FLAG_BROKEN_RESET)
return 0;
#ifdef CONFIG_PHYLIB_10G
/* If it's 10G, we need to issue reset through one of the MMDs */
if (is_10g_interface(phydev->interface)) {

2
include/phy.h
View File

@ -17,6 +17,8 @@
#define PHY_MAX_ADDR 32
#define PHY_FLAG_BROKEN_RESET (1 << 0) /* soft reset not supported */
#define PHY_DEFAULT_FEATURES (SUPPORTED_Autoneg | \
SUPPORTED_TP | \
SUPPORTED_MII)