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git01.mediatek.com / filogic / uboot / edddcf5005af143c711600b84054dc89afbd9fa2 / . / drivers / phy / phy-qcom-ipq4019-usb.c
blob: 465f0d3a01e61aa8e9863553f14a4099ec6b83fc [file] [log] [blame]
Robert Marko9190e7b2020-09-10 16:00:04 +0200[diff] [blame]1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2019 Sartura Ltd.
4 *
5 * Author: Robert Marko <robert.marko@sartura.hr>
6 *
7 * Based on Linux driver
8 */
9
10#include <clk.h>
11#include <common.h>
12#include <dm.h>
13#include <generic-phy.h>
14#include <log.h>
15#include <reset.h>
16#include <asm/io.h>
17#include <linux/delay.h>
18
19struct ipq4019_usb_phy {
20 phys_addr_t base;
21 struct reset_ctl por_rst;
22 struct reset_ctl srif_rst;
23};
24
25static int ipq4019_ss_phy_power_off(struct phy *_phy)
26{
27 struct ipq4019_usb_phy *phy = dev_get_priv(_phy->dev);
28
29 reset_assert(&phy->por_rst);
30 mdelay(10);
31
32 return 0;
33}
34
35static int ipq4019_ss_phy_power_on(struct phy *_phy)
36{
37 struct ipq4019_usb_phy *phy = dev_get_priv(_phy->dev);
38
39 ipq4019_ss_phy_power_off(_phy);
40
41 reset_deassert(&phy->por_rst);
42
43 return 0;
44}
45
46static struct phy_ops ipq4019_usb_ss_phy_ops = {
47 .power_on = ipq4019_ss_phy_power_on,
48 .power_off = ipq4019_ss_phy_power_off,
49};
50
51static int ipq4019_usb_ss_phy_probe(struct udevice *dev)
52{
53 struct ipq4019_usb_phy *phy = dev_get_priv(dev);
54 int ret;
55
56 phy->base = dev_read_addr(dev);
57 if (phy->base == FDT_ADDR_T_NONE)
58 return -EINVAL;
59
60 ret = reset_get_by_name(dev, "por_rst", &phy->por_rst);
61 if (ret)
62 return ret;
63
64 return 0;
65}
66
67static const struct udevice_id ipq4019_usb_ss_phy_ids[] = {
68 { .compatible = "qcom,usb-ss-ipq4019-phy" },
69 { }
70};
71
72U_BOOT_DRIVER(ipq4019_usb_ss_phy) = {
73 .name = "ipq4019-usb-ss-phy",
74 .id = UCLASS_PHY,
75 .of_match = ipq4019_usb_ss_phy_ids,
76 .ops = &ipq4019_usb_ss_phy_ops,
77 .probe = ipq4019_usb_ss_phy_probe,
78 .priv_auto_alloc_size = sizeof(struct ipq4019_usb_phy),
79};
80
81static int ipq4019_hs_phy_power_off(struct phy *_phy)
82{
83 struct ipq4019_usb_phy *phy = dev_get_priv(_phy->dev);
84
85 reset_assert(&phy->por_rst);
86 mdelay(10);
87
88 reset_assert(&phy->srif_rst);
89 mdelay(10);
90
91 return 0;
92}
93
94static int ipq4019_hs_phy_power_on(struct phy *_phy)
95{
96 struct ipq4019_usb_phy *phy = dev_get_priv(_phy->dev);
97
98 ipq4019_hs_phy_power_off(_phy);
99
100 reset_deassert(&phy->srif_rst);
101 mdelay(10);
102
103 reset_deassert(&phy->por_rst);
104
105 return 0;
106}
107
108static struct phy_ops ipq4019_usb_hs_phy_ops = {
109 .power_on = ipq4019_hs_phy_power_on,
110 .power_off = ipq4019_hs_phy_power_off,
111};
112
113static int ipq4019_usb_hs_phy_probe(struct udevice *dev)
114{
115 struct ipq4019_usb_phy *phy = dev_get_priv(dev);
116 int ret;
117
118 phy->base = dev_read_addr(dev);
119 if (phy->base == FDT_ADDR_T_NONE)
120 return -EINVAL;
121
122 ret = reset_get_by_name(dev, "por_rst", &phy->por_rst);
123 if (ret)
124 return ret;
125
126 ret = reset_get_by_name(dev, "srif_rst", &phy->srif_rst);
127 if (ret)
128 return ret;
129
130 return 0;
131}
132
133static const struct udevice_id ipq4019_usb_hs_phy_ids[] = {
134 { .compatible = "qcom,usb-hs-ipq4019-phy" },
135 { }
136};
137
138U_BOOT_DRIVER(ipq4019_usb_hs_phy) = {
139 .name = "ipq4019-usb-hs-phy",
140 .id = UCLASS_PHY,
141 .of_match = ipq4019_usb_hs_phy_ids,
142 .ops = &ipq4019_usb_hs_phy_ops,
143 .probe = ipq4019_usb_hs_phy_probe,
144 .priv_auto_alloc_size = sizeof(struct ipq4019_usb_phy),
145};