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| author | Alex Marginean <alexandru.marginean@nxp.com> | 2019-07-12 10:13:50 +0300 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2019-07-18 16:37:13 -0500 |
| commit | 8880edba06d5deb52ebca7c3eb1bbdcdcc8ec2b6 (patch) | |
| tree | 2a43309592555ec6fe3b5b3a3a0ed3237dd00e95 /include | |
| parent | c38ac2893cc8f56365ab1084b2c5b06fc31dd697 (diff) | |
| download | u-boot-8880edba06d5deb52ebca7c3eb1bbdcdcc8ec2b6.tar.gz | |
net: add MDIO_MUX DM class
Adds a class for MDIO MUXes, which control access to a series of
downstream child MDIOs.
MDIO MUX drivers are required to implement a select function used to switch
between child buses.
MUX children are registered as MDIO buses and they can be used just like
regular MDIOs.
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 | 20 |
2 files changed, 21 insertions, 0 deletions
diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h index f9300a64ce..d4d96106b3 100644 --- a/include/dm/uclass-id.h +++ b/include/dm/uclass-id.h @@ -59,6 +59,7 @@ enum uclass_id { UCLASS_MAILBOX, /* Mailbox controller */ UCLASS_MASS_STORAGE, /* Mass storage device */ UCLASS_MDIO, /* MDIO bus */ + UCLASS_MDIO_MUX, /* MDIO MUX/switch */ 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 e6dd441983..9b97d09f18 100644 --- a/include/miiphy.h +++ b/include/miiphy.h @@ -167,4 +167,24 @@ struct phy_device *dm_mdio_phy_connect(struct udevice *dev, int addr, #endif +#ifdef CONFIG_DM_MDIO_MUX + +/* indicates none of the child buses is selected */ +#define MDIO_MUX_SELECT_NONE -1 + +/** + * struct mdio_mux_ops - MDIO MUX operations + * + * @select: Selects a child bus + * @deselect: Clean up selection. Optional, can be NULL + */ +struct mdio_mux_ops { + int (*select)(struct udevice *mux, int cur, int sel); + int (*deselect)(struct udevice *mux, int sel); +}; + +#define mdio_mux_get_ops(dev) ((struct mdio_mux_ops *)(dev)->driver->ops) + +#endif + #endif |