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| author | Hannes Schmelzer <hannes.schmelzer@br-automation.com> | 2017-03-23 15:11:43 +0100 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2017-03-26 09:58:26 -0500 |
| commit | db40c1aa1c100d8a9e33206575efd8b3678f31db (patch) | |
| tree | 1a83d22ec2356367ee6c5b6ab5227e0a3b656bbe /include/phy.h | |
| parent | f8e57c650d691e3617c49a16ec7a4dcab436100e (diff) | |
| download | u-boot-db40c1aa1c100d8a9e33206575efd8b3678f31db.tar.gz u-boot-db40c1aa1c100d8a9e33206575efd8b3678f31db.tar.bz2 u-boot-db40c1aa1c100d8a9e33206575efd8b3678f31db.zip | |
drivers/net/phy: add fixed-phy / fixed-link support
This patch adds support for having a "fixed-link" to some other MAC
(like some embedded switch-device).
For this purpose we introduce a new phy-driver, called "Fixed PHY".
Fixed PHY works only with CONFIG_DM_ETH enabled, since the fixed-link is
described with a subnode below ethernet interface.
Most ethernet drivers (unfortunately not all are following same scheme
for searching/attaching phys) are calling "phy_connect(...)" for getting
a phy-device.
At this point we link in, we search here for a subnode called "fixed-
link", once found we start phy_device_create(...) with the special phy-
id PHY_FIXED_ID (0xa5a55a5a).
During init the "Fixed PHY" driver has registered with this id and now
gets probed, during probe we get all the details about fixed-link out of
dts, later on the phy reports this values.
Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Diffstat (limited to 'include/phy.h')
| -rw-r--r-- | include/phy.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/phy.h b/include/phy.h index 5477496e0e..f5fdc04b6e 100644 --- a/include/phy.h +++ b/include/phy.h @@ -15,6 +15,8 @@ #include <linux/ethtool.h> #include <linux/mdio.h> +#define PHY_FIXED_ID 0xa5a55a5a + #define PHY_MAX_ADDR 32 #define PHY_FLAG_BROKEN_RESET (1 << 0) /* soft reset not supported */ @@ -267,6 +269,7 @@ int phy_ti_init(void); int phy_vitesse_init(void); int phy_xilinx_init(void); int phy_mscc_init(void); +int phy_fixed_init(void); int board_phy_config(struct phy_device *phydev); int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id); |