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| author | Rafał Miłecki <zajec5@gmail.com> | 2016-02-03 09:33:38 +0000 |
|---|---|---|
| committer | Rafał Miłecki <zajec5@gmail.com> | 2016-02-03 09:33:38 +0000 |
| commit | 19b9e14c47cf289758dc465fd44ee282c41c469a (patch) | |
| tree | 0f673757582bbc407457df6c81410a92cde5d898 /target/linux | |
| parent | 8ebc9e7539b720deb847ee3480e0d08f9ed68cdc (diff) | |
| download | mtk-20170518-19b9e14c47cf289758dc465fd44ee282c41c469a.zip mtk-20170518-19b9e14c47cf289758dc465fd44ee282c41c469a.tar.gz mtk-20170518-19b9e14c47cf289758dc465fd44ee282c41c469a.tar.bz2 | |
swconfig: add (PHY) generic helper setting port link
It's quite common for switches to have PHY per port so adding a generic
helper setting link state will help many drivers. It just needs an API
to access PHYs which this patch also adds.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
SVN-Revision: 48621
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/generic/files/drivers/net/phy/swconfig.c | 36 | ||||
| -rw-r--r-- | target/linux/generic/files/include/linux/switch.h | 6 |
2 files changed, 42 insertions, 0 deletions
diff --git a/target/linux/generic/files/drivers/net/phy/swconfig.c b/target/linux/generic/files/drivers/net/phy/swconfig.c index 4bfe64f..68ddd24 100644 --- a/target/linux/generic/files/drivers/net/phy/swconfig.c +++ b/target/linux/generic/files/drivers/net/phy/swconfig.c @@ -25,6 +25,7 @@ #include <linux/switch.h> #include <linux/of.h> #include <linux/version.h> +#include <uapi/linux/mii.h> #define SWCONFIG_DEVNAME "switch%d" @@ -1168,6 +1169,41 @@ unregister_switch(struct switch_dev *dev) } EXPORT_SYMBOL_GPL(unregister_switch); +int +switch_generic_set_link(struct switch_dev *dev, int port, + struct switch_port_link *link) +{ + if (WARN_ON(!dev->ops->phy_write16)) + return -ENOTSUPP; + + /* Generic implementation */ + if (link->aneg) { + dev->ops->phy_write16(dev, port, MII_BMCR, 0x0000); + dev->ops->phy_write16(dev, port, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART); + } else { + u16 bmcr = 0; + + if (link->duplex) + bmcr |= BMCR_FULLDPLX; + + switch (link->speed) { + case SWITCH_PORT_SPEED_10: + break; + case SWITCH_PORT_SPEED_100: + bmcr |= BMCR_SPEED100; + break; + case SWITCH_PORT_SPEED_1000: + bmcr |= BMCR_SPEED1000; + break; + default: + return -ENOTSUPP; + } + + dev->ops->phy_write16(dev, port, MII_BMCR, bmcr); + } + + return 0; +} static int __init swconfig_init(void) diff --git a/target/linux/generic/files/include/linux/switch.h b/target/linux/generic/files/include/linux/switch.h index 4ada0e5..0c4cce7 100644 --- a/target/linux/generic/files/include/linux/switch.h +++ b/target/linux/generic/files/include/linux/switch.h @@ -99,6 +99,9 @@ struct switch_dev_ops { struct switch_port_link *link); int (*get_port_stats)(struct switch_dev *dev, int port, struct switch_port_stats *stats); + + int (*phy_read16)(struct switch_dev *dev, int addr, u8 reg, u16 *value); + int (*phy_write16)(struct switch_dev *dev, int addr, u8 reg, u16 value); }; struct switch_dev { @@ -170,4 +173,7 @@ struct switch_attr { int max; }; +int switch_generic_set_link(struct switch_dev *dev, int port, + struct switch_port_link *link); + #endif /* _LINUX_SWITCH_H */ |