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| author | Alex Marginean <alexm.osslist@gmail.com> | 2019-06-03 19:10:30 +0300 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2019-07-15 13:32:25 -0500 |
| commit | c3452b50c3aaa0db2bb0bc68039fed4d40bedbc0 (patch) | |
| tree | f584c2b6965a2c920697f7c913790508af74da9f /include | |
| parent | 149468699e8f631f69d55b5c86b430824fc32d69 (diff) | |
| download | u-boot-c3452b50c3aaa0db2bb0bc68039fed4d40bedbc0.tar.gz | |
net: introduce MDIO DM class for MDIO devices
Adds UCLASS_MDIO DM class supporting MDIO buses that are probed as
stand-alone devices. Useful in particular for systems that support
DM_ETH and have a stand-alone MDIO hardware block shared by multiple
Ethernet interfaces.
Signed-off-by: Alex Marginean <alexm.osslist@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/dm/uclass-id.h | 1 | ||||
| -rw-r--r-- | include/miiphy.h | 49 |
2 files changed, 50 insertions, 0 deletions
diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h index 5056a084d2..f9300a64ce 100644 --- a/include/dm/uclass-id.h +++ b/include/dm/uclass-id.h @@ -58,6 +58,7 @@ enum uclass_id { UCLASS_LPC, /* x86 'low pin count' interface */ UCLASS_MAILBOX, /* Mailbox controller */ UCLASS_MASS_STORAGE, /* Mass storage device */ + UCLASS_MDIO, /* MDIO bus */ UCLASS_MISC, /* Miscellaneous device */ UCLASS_MMC, /* SD / MMC card or chip */ UCLASS_MOD_EXP, /* RSA Mod Exp device */ diff --git a/include/miiphy.h b/include/miiphy.h index f11763affd..e6dd441983 100644 --- a/include/miiphy.h +++ b/include/miiphy.h @@ -118,4 +118,53 @@ int bb_miiphy_write(struct mii_dev *miidev, int addr, int devad, int reg, #define ESTATUS_1000XF 0x8000 #define ESTATUS_1000XH 0x4000 +#ifdef CONFIG_DM_MDIO + +/** + * struct mdio_perdev_priv - Per-device class data for MDIO DM + * + * @mii_bus: Supporting MII legacy bus + */ +struct mdio_perdev_priv { + struct mii_dev *mii_bus; +}; + +/** + * struct mdio_ops - MDIO bus operations + * + * @read: Read from a PHY register + * @write: Write to a PHY register + * @reset: Reset the MDIO bus, NULL if not supported + */ +struct mdio_ops { + int (*read)(struct udevice *mdio_dev, int addr, int devad, int reg); + int (*write)(struct udevice *mdio_dev, int addr, int devad, int reg, + u16 val); + int (*reset)(struct udevice *mdio_dev); +}; + +#define mdio_get_ops(dev) ((struct mdio_ops *)(dev)->driver->ops) + +/** + * dm_mdio_probe_devices - Call probe on all MII devices, currently used for + * MDIO console commands. + */ +void dm_mdio_probe_devices(void); + +/** + * dm_mdio_phy_connect - Wrapper over phy_connect for DM MDIO + * + * @dev: mdio dev + * @addr: PHY address on MDIO bus + * @ethdev: ethernet device to connect to the PHY + * @interface: MAC-PHY protocol + * + * @return pointer to phy_device, or 0 on error + */ +struct phy_device *dm_mdio_phy_connect(struct udevice *dev, int addr, + struct udevice *ethdev, + phy_interface_t interface); + +#endif + #endif |