mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 10:48:51 +00:00
56a5588340
Unlike the Linux fixed PHY driver, the one in U-Boot does not attempt to emulate the clause 22 register set of a gigabit copper PHY driver through the swphy framework. Therefore, the limitation of being unable to support speeds higher than gigabit in fixed-link does not apply to the U-Boot fixed PHY driver. This makes the fixed-link U-Boot implementation more similar to the one from phylink, which can work with any valid link speed. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
83 lines
1.8 KiB
C
83 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Fixed-Link phy
|
|
*
|
|
* Copyright 2017 Bernecker & Rainer Industrieelektronik GmbH
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <common.h>
|
|
#include <malloc.h>
|
|
#include <phy.h>
|
|
#include <dm.h>
|
|
#include <fdt_support.h>
|
|
#include <asm/global_data.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
int fixedphy_probe(struct phy_device *phydev)
|
|
{
|
|
struct fixed_link *priv;
|
|
int ofnode = phydev->addr;
|
|
u32 val;
|
|
|
|
/* check for mandatory properties within fixed-link node */
|
|
val = fdt_getprop_u32_default_node(gd->fdt_blob,
|
|
ofnode, 0, "speed", 0);
|
|
if (val != SPEED_10 && val != SPEED_100 && val != SPEED_1000 &&
|
|
val != SPEED_2500 && val != SPEED_10000) {
|
|
printf("ERROR: no/invalid speed given in fixed-link node!");
|
|
return -EINVAL;
|
|
}
|
|
|
|
priv = malloc(sizeof(*priv));
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
memset(priv, 0, sizeof(*priv));
|
|
|
|
phydev->priv = priv;
|
|
|
|
priv->link_speed = val;
|
|
priv->duplex = fdtdec_get_bool(gd->fdt_blob, ofnode, "full-duplex");
|
|
priv->pause = fdtdec_get_bool(gd->fdt_blob, ofnode, "pause");
|
|
priv->asym_pause = fdtdec_get_bool(gd->fdt_blob, ofnode, "asym-pause");
|
|
|
|
/* fixed-link phy must not be reset by core phy code */
|
|
phydev->flags |= PHY_FLAG_BROKEN_RESET;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int fixedphy_startup(struct phy_device *phydev)
|
|
{
|
|
struct fixed_link *priv = phydev->priv;
|
|
|
|
phydev->asym_pause = priv->asym_pause;
|
|
phydev->pause = priv->pause;
|
|
phydev->duplex = priv->duplex;
|
|
phydev->speed = priv->link_speed;
|
|
phydev->link = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int fixedphy_shutdown(struct phy_device *phydev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static struct phy_driver fixedphy_driver = {
|
|
.uid = PHY_FIXED_ID,
|
|
.mask = 0xffffffff,
|
|
.name = "Fixed PHY",
|
|
.features = PHY_GBIT_FEATURES | SUPPORTED_MII,
|
|
.probe = fixedphy_probe,
|
|
.startup = fixedphy_startup,
|
|
.shutdown = fixedphy_shutdown,
|
|
};
|
|
|
|
int phy_fixed_init(void)
|
|
{
|
|
phy_register(&fixedphy_driver);
|
|
return 0;
|
|
}
|