mirror of
https://github.com/nxp-imx/linux-imx.git
synced 2025-09-03 02:16:09 +02:00
de750c69a7
If the phylink_pcs is in the MLO_AN_C73 mode, then the Lynx PCS makes use of the AN/LT block to advertise the supported backplane link modes using clause 73 autoneg. Note that we could also be advertising BASE-CR link modes (for SFP28 modules) but we don't have a way of detecting the medium type, so we just hardcode backplane (BASE-K) for now. Note that we find out whether we operate in MLO_AN_C73 mode a bit late (later than lynx_pcs_create()). So we need mtip_backplane_create() to not actually do anything until we know that C73 is required, and delay any configuration until the phylink state machine kicks in. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* Copyright 2023 NXP
|
|
*/
|
|
#ifndef _MTIP_BACKPLANE_H
|
|
#define _MTIP_BACKPLANE_H
|
|
|
|
struct mdio_device;
|
|
struct mtip_backplane;
|
|
struct phy;
|
|
struct phylink_link_state;
|
|
|
|
enum mtip_model {
|
|
MTIP_MODEL_AUTODETECT,
|
|
MTIP_MODEL_LX2160A,
|
|
};
|
|
|
|
#define MTIP_PRIMARY_LANE 0
|
|
#define MTIP_MAX_NUM_LANES 4
|
|
|
|
#if IS_ENABLED(CONFIG_MTIP_BACKPLANE_PHY)
|
|
|
|
int mtip_backplane_config_aneg(struct mtip_backplane *priv, bool autoneg,
|
|
const unsigned long *advertising);
|
|
void mtip_backplane_an_restart(struct mtip_backplane *priv);
|
|
void mtip_backplane_get_state(struct mtip_backplane *priv,
|
|
struct phylink_link_state *state);
|
|
int mtip_backplane_suspend(struct mtip_backplane *priv);
|
|
int mtip_backplane_resume(struct mtip_backplane *priv);
|
|
int mtip_backplane_validate(struct phy *serdes, unsigned long *supported);
|
|
void mtip_backplane_add_subordinate(struct mtip_backplane *priv,
|
|
struct mtip_backplane *subordinate);
|
|
struct mtip_backplane *mtip_backplane_create(struct mdio_device *pcs_mdiodev,
|
|
struct phy *serdes,
|
|
enum mtip_model model);
|
|
void mtip_backplane_destroy(struct mtip_backplane *priv);
|
|
|
|
#else
|
|
|
|
static inline int mtip_backplane_config_aneg(struct mtip_backplane *priv,
|
|
bool autoneg,
|
|
const unsigned long *advertising)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline void mtip_backplane_an_restart(struct mtip_backplane *priv)
|
|
{
|
|
}
|
|
|
|
static inline void mtip_backplane_get_state(struct mtip_backplane *priv,
|
|
struct phylink_link_state *state)
|
|
{
|
|
}
|
|
|
|
static inline int mtip_backplane_suspend(struct mtip_backplane *priv)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline int mtip_backplane_resume(struct mtip_backplane *priv)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline int mtip_backplane_validate(struct phy *serdes,
|
|
unsigned long *supported)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline void mtip_backplane_add_subordinate(struct mtip_backplane *priv,
|
|
struct mtip_backplane *subordinate)
|
|
{
|
|
}
|
|
|
|
static inline struct mtip_backplane *mtip_backplane_create(struct mdio_device *pcs_mdiodev,
|
|
struct phy *serdes,
|
|
enum mtip_model model)
|
|
{
|
|
return ERR_PTR(-ENODEV);
|
|
}
|
|
|
|
static inline void mtip_backplane_destroy(struct mtip_backplane *priv)
|
|
{
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif
|