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git01.mediatek.com / filogic / uboot / 09300264f39ffd5379ca2ca0acbd73e020c44564 / . / drivers / phy / sandbox-phy.c
blob: 9ad820c24c9dcc3179bcc2bb7725236160feb082 [file] [log] [blame]
Jean-Jacques Hiblot7e9db022017-04-24 11:51:28 +0200[diff] [blame]1/*
2 * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
3 * Written by Jean-Jacques Hiblot <jjhiblot@ti.com>
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8#include <common.h>
9#include <dm.h>
10#include <generic-phy.h>
11
12DECLARE_GLOBAL_DATA_PTR;
13
14struct sandbox_phy_priv {
15 bool initialized;
16 bool on;
17 bool broken;
18};
19
20static int sandbox_phy_power_on(struct phy *phy)
21{
22 struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
23
24 if (!priv->initialized)
25 return -EIO;
26
27 if (priv->broken)
28 return -EIO;
29
30 priv->on = true;
31
32 return 0;
33}
34
35static int sandbox_phy_power_off(struct phy *phy)
36{
37 struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
38
39 if (!priv->initialized)
40 return -EIO;
41
42 if (priv->broken)
43 return -EIO;
44
45 /*
46 * for validation purpose, let's says that power off
47 * works only for PHY 0
48 */
49 if (phy->id)
50 return -EIO;
51
52 priv->on = false;
53
54 return 0;
55}
56
57static int sandbox_phy_init(struct phy *phy)
58{
59 struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
60
61 priv->initialized = true;
62 priv->on = true;
63
64 return 0;
65}
66
67static int sandbox_phy_exit(struct phy *phy)
68{
69 struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
70
71 priv->initialized = false;
72 priv->on = false;
73
74 return 0;
75}
76
77static int sandbox_phy_probe(struct udevice *dev)
78{
79 struct sandbox_phy_priv *priv = dev_get_priv(dev);
80
81 priv->initialized = false;
82 priv->on = false;
83 priv->broken = fdtdec_get_bool(gd->fdt_blob, dev_of_offset(dev),
84 "broken");
85
86 return 0;
87}
88
89static struct phy_ops sandbox_phy_ops = {
90 .power_on = sandbox_phy_power_on,
91 .power_off = sandbox_phy_power_off,
92 .init = sandbox_phy_init,
93 .exit = sandbox_phy_exit,
94};
95
96static const struct udevice_id sandbox_phy_ids[] = {
97 { .compatible = "sandbox,phy" },
98 { }
99};
100
101U_BOOT_DRIVER(phy_sandbox) = {
102 .name = "phy_sandbox",
103 .id = UCLASS_PHY,
104 .of_match = sandbox_phy_ids,
105 .ops = &sandbox_phy_ops,
106 .probe = sandbox_phy_probe,
107 .priv_auto_alloc_size = sizeof(struct sandbox_phy_priv),
108};