blob: df8235645ef65526ea7e152098c123c384ed4048 [file] [log] [blame]
Hannes Schmelzerda494602017-03-23 15:11:43 +01001/*
2 * Fixed-Link phy
3 *
4 * Copyright 2017 Bernecker & Rainer Industrieelektronik GmbH
5 *
6 * SPDX-License-Identifier: GPL-2.0+
7 */
8
9#include <config.h>
10#include <common.h>
11#include <phy.h>
12#include <dm.h>
13#include <fdt_support.h>
14
15DECLARE_GLOBAL_DATA_PTR;
16
17int fixedphy_probe(struct phy_device *phydev)
18{
19 struct fixed_link *priv;
20 int ofnode = phydev->addr;
21 u32 val;
22
23 /* check for mandatory properties within fixed-link node */
24 val = fdt_getprop_u32_default_node(gd->fdt_blob,
25 ofnode, 0, "speed", 0);
26 if (val != SPEED_10 && val != SPEED_100 && val != SPEED_1000) {
27 printf("ERROR: no/invalid speed given in fixed-link node!");
28 return -EINVAL;
29 }
30
31 priv = malloc(sizeof(*priv));
32 if (!priv)
33 return -ENOMEM;
34 memset(priv, 0, sizeof(*priv));
35
36 phydev->priv = priv;
37 phydev->addr = 0;
38
39 priv->link_speed = val;
40 priv->duplex = fdtdec_get_bool(gd->fdt_blob, ofnode, "full-duplex");
41 priv->pause = fdtdec_get_bool(gd->fdt_blob, ofnode, "pause");
42 priv->asym_pause = fdtdec_get_bool(gd->fdt_blob, ofnode, "asym-pause");
43
44 /* fixed-link phy must not be reset by core phy code */
45 phydev->flags |= PHY_FLAG_BROKEN_RESET;
46
47 return 0;
48}
49
50int fixedphy_startup(struct phy_device *phydev)
51{
52 struct fixed_link *priv = phydev->priv;
53
54 phydev->asym_pause = priv->asym_pause;
55 phydev->pause = priv->pause;
56 phydev->duplex = priv->duplex;
57 phydev->speed = priv->link_speed;
58 phydev->link = 1;
59
60 return 0;
61}
62
63int fixedphy_shutdown(struct phy_device *phydev)
64{
65 return 0;
66}
67
68static struct phy_driver fixedphy_driver = {
69 .uid = PHY_FIXED_ID,
70 .mask = 0xffffffff,
71 .name = "Fixed PHY",
72 .features = PHY_GBIT_FEATURES | SUPPORTED_MII,
73 .probe = fixedphy_probe,
74 .startup = fixedphy_startup,
75 .shutdown = fixedphy_shutdown,
76};
77
78int phy_fixed_init(void)
79{
80 phy_register(&fixedphy_driver);
81 return 0;
82}