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net: mdio-uclass: add wrappers for read/write/reset operations

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Add wrappers dm_mdio_read(), dm_mdio_write() and dm_mdio_reset() for
DM MDIO's .read(), .write() and .reset() operations.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
This commit is contained in:
Marek Behún 2022-04-07 00:32:58 +02:00 committed by Ramon Fried
parent f3dd213e15
commit 351bfa6ebd
2 changed files with 62 additions and 0 deletions
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31
include/miiphy.h
View File

@ -157,6 +157,37 @@ struct mdio_ops {
*/
void dm_mdio_probe_devices(void);
/**
* dm_mdio_read - Wrapper over .read() operation for DM MDIO
*
* @mdiodev: mdio device
* @addr: PHY address on MDIO bus
* @devad: device address on PHY if C45; should be MDIO_DEVAD_NONE if C22
* @reg: register address
* Return: register value if non-negative, -error code otherwise
*/
int dm_mdio_read(struct udevice *mdio_dev, int addr, int devad, int reg);
/**
* dm_mdio_write - Wrapper over .write() operation for DM MDIO
*
* @mdiodev: mdio device
* @addr: PHY address on MDIO bus
* @devad: device address on PHY if C45; should be MDIO_DEVAD_NONE if C22
* @reg: register address
* @val: value to write
* Return: 0 on success, -error code otherwise
*/
int dm_mdio_write(struct udevice *mdio_dev, int addr, int devad, int reg, u16 val);
/**
* dm_mdio_reset - Wrapper over .reset() operation for DM MDIO
*
* @mdiodev: mdio device
* Return: 0 on success, -error code otherwise
*/
int dm_mdio_reset(struct udevice *mdio_dev);
/**
* dm_mdio_phy_connect - Wrapper over phy_connect for DM MDIO
*

31
net/mdio-uclass.c
View File

@ -57,6 +57,37 @@ static int dm_mdio_post_bind(struct udevice *dev)
return 0;
}
int dm_mdio_read(struct udevice *mdio_dev, int addr, int devad, int reg)
{
struct mdio_ops *ops = mdio_get_ops(mdio_dev);
if (!ops->read)
return -ENOSYS;
return ops->read(mdio_dev, addr, devad, reg);
}
int dm_mdio_write(struct udevice *mdio_dev, int addr, int devad, int reg,
u16 val)
{
struct mdio_ops *ops = mdio_get_ops(mdio_dev);
if (!ops->write)
return -ENOSYS;
return ops->write(mdio_dev, addr, devad, reg, val);
}
int dm_mdio_reset(struct udevice *mdio_dev)
{
struct mdio_ops *ops = mdio_get_ops(mdio_dev);
if (!ops->reset)
return 0;
return ops->reset(mdio_dev);
}
/*
* Following read/write/reset functions are registered with legacy MII code.
* These are called for PHY operations by upper layers and we further call the