1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Fixed-Link phy
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Copyright 2017 Bernecker & Rainer Industrieelektronik GmbH
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <config.h>
10*4882a593Smuzhiyun #include <common.h>
11*4882a593Smuzhiyun #include <phy.h>
12*4882a593Smuzhiyun #include <dm.h>
13*4882a593Smuzhiyun #include <fdt_support.h>
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun DECLARE_GLOBAL_DATA_PTR;
16*4882a593Smuzhiyun
fixedphy_probe(struct phy_device * phydev)17*4882a593Smuzhiyun int fixedphy_probe(struct phy_device *phydev)
18*4882a593Smuzhiyun {
19*4882a593Smuzhiyun struct fixed_link *priv;
20*4882a593Smuzhiyun int ofnode = phydev->addr;
21*4882a593Smuzhiyun u32 val;
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun /* check for mandatory properties within fixed-link node */
24*4882a593Smuzhiyun val = fdt_getprop_u32_default_node(gd->fdt_blob,
25*4882a593Smuzhiyun ofnode, 0, "speed", 0);
26*4882a593Smuzhiyun if (val != SPEED_10 && val != SPEED_100 && val != SPEED_1000) {
27*4882a593Smuzhiyun printf("ERROR: no/invalid speed given in fixed-link node!");
28*4882a593Smuzhiyun return -EINVAL;
29*4882a593Smuzhiyun }
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun priv = malloc(sizeof(*priv));
32*4882a593Smuzhiyun if (!priv)
33*4882a593Smuzhiyun return -ENOMEM;
34*4882a593Smuzhiyun memset(priv, 0, sizeof(*priv));
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun phydev->priv = priv;
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun priv->link_speed = val;
39*4882a593Smuzhiyun priv->duplex = fdtdec_get_bool(gd->fdt_blob, ofnode, "full-duplex");
40*4882a593Smuzhiyun priv->pause = fdtdec_get_bool(gd->fdt_blob, ofnode, "pause");
41*4882a593Smuzhiyun priv->asym_pause = fdtdec_get_bool(gd->fdt_blob, ofnode, "asym-pause");
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun /* fixed-link phy must not be reset by core phy code */
44*4882a593Smuzhiyun phydev->flags |= PHY_FLAG_BROKEN_RESET;
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun return 0;
47*4882a593Smuzhiyun }
48*4882a593Smuzhiyun
fixedphy_startup(struct phy_device * phydev)49*4882a593Smuzhiyun int fixedphy_startup(struct phy_device *phydev)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun struct fixed_link *priv = phydev->priv;
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun phydev->asym_pause = priv->asym_pause;
54*4882a593Smuzhiyun phydev->pause = priv->pause;
55*4882a593Smuzhiyun phydev->duplex = priv->duplex;
56*4882a593Smuzhiyun phydev->speed = priv->link_speed;
57*4882a593Smuzhiyun phydev->link = 1;
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun return 0;
60*4882a593Smuzhiyun }
61*4882a593Smuzhiyun
fixedphy_shutdown(struct phy_device * phydev)62*4882a593Smuzhiyun int fixedphy_shutdown(struct phy_device *phydev)
63*4882a593Smuzhiyun {
64*4882a593Smuzhiyun return 0;
65*4882a593Smuzhiyun }
66*4882a593Smuzhiyun
67*4882a593Smuzhiyun static struct phy_driver fixedphy_driver = {
68*4882a593Smuzhiyun .uid = PHY_FIXED_ID,
69*4882a593Smuzhiyun .mask = 0xffffffff,
70*4882a593Smuzhiyun .name = "Fixed PHY",
71*4882a593Smuzhiyun .features = PHY_GBIT_FEATURES | SUPPORTED_MII,
72*4882a593Smuzhiyun .probe = fixedphy_probe,
73*4882a593Smuzhiyun .startup = fixedphy_startup,
74*4882a593Smuzhiyun .shutdown = fixedphy_shutdown,
75*4882a593Smuzhiyun };
76*4882a593Smuzhiyun
phy_fixed_init(void)77*4882a593Smuzhiyun int phy_fixed_init(void)
78*4882a593Smuzhiyun {
79*4882a593Smuzhiyun phy_register(&fixedphy_driver);
80*4882a593Smuzhiyun return 0;
81*4882a593Smuzhiyun }
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