1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/*
* (C) Copyright 2009, 2011 Freescale Semiconductor, Inc.
*
* (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB
*
* Author: Tor Krill tor@excito.com
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <usb.h>
#include <asm/io.h>
#include <hwconfig.h>
#include <fsl_errata.h>
#include <fsl_usb.h>
#include <fdt_support.h>
#ifndef CONFIG_USB_MAX_CONTROLLER_COUNT
#define CONFIG_USB_MAX_CONTROLLER_COUNT 1
#endif
/* USB Controllers */
#define FSL_USB2_MPH "fsl-usb2-mph"
#define FSL_USB2_DR "fsl-usb2-dr"
#define CHIPIDEA_USB2 "chipidea,usb2"
#define SNPS_DWC3 "snps,dwc3"
static const char * const compat_usb_fsl[] = {
FSL_USB2_MPH,
FSL_USB2_DR,
SNPS_DWC3,
NULL
};
static int fdt_usb_get_node_type(void *blob, int start_offset,
int *node_offset, const char **node_type)
{
int i;
int ret = -ENOENT;
for (i = 0; compat_usb_fsl[i]; i++) {
*node_offset = fdt_node_offset_by_compatible
(blob, start_offset,
compat_usb_fsl[i]);
if (*node_offset >= 0) {
*node_type = compat_usb_fsl[i];
ret = 0;
break;
}
}
return ret;
}
static int fdt_fixup_usb_mode_phy_type(void *blob, const char *mode,
const char *phy_type, int start_offset)
{
const char *prop_mode = "dr_mode";
const char *prop_type = "phy_type";
const char *node_type = NULL;
int node_offset;
int err;
err = fdt_usb_get_node_type(blob, start_offset,
&node_offset, &node_type);
if (err < 0)
return err;
if (mode) {
err = fdt_setprop(blob, node_offset, prop_mode, mode,
strlen(mode) + 1);
if (err < 0)
printf("WARNING: could not set %s for %s: %s.\n",
prop_mode, node_type, fdt_strerror(err));
}
if (phy_type) {
err = fdt_setprop(blob, node_offset, prop_type, phy_type,
strlen(phy_type) + 1);
if (err < 0)
printf("WARNING: could not set %s for %s: %s.\n",
prop_type, node_type, fdt_strerror(err));
}
return node_offset;
}
static int fdt_fixup_usb_erratum(void *blob, const char *prop_erratum,
const char *controller_type, int start_offset)
{
int node_offset, err;
const char *node_type = NULL;
const char *node_name = NULL;
err = fdt_usb_get_node_type(blob, start_offset,
&node_offset, &node_type);
if (err < 0)
return err;
if (!strcmp(node_type, FSL_USB2_MPH) || !strcmp(node_type, FSL_USB2_DR))
node_name = CHIPIDEA_USB2;
else
node_name = node_type;
if (strcmp(node_name, controller_type))
return err;
err = fdt_setprop(blob, node_offset, prop_erratum, NULL, 0);
if (err < 0) {
printf("ERROR: could not set %s for %s: %s.\n",
prop_erratum, node_type, fdt_strerror(err));
}
return node_offset;
}
static int fdt_fixup_erratum(int *usb_erratum_off, void *blob,
const char *controller_type, char *str,
bool (*has_erratum)(void))
{
char buf[32] = {0};
snprintf(buf, sizeof(buf), "fsl,usb-erratum-%s", str);
if (!has_erratum())
return -EINVAL;
*usb_erratum_off = fdt_fixup_usb_erratum(blob, buf, controller_type,
*usb_erratum_off);
if (*usb_erratum_off < 0)
return -ENOSPC;
debug("Adding USB erratum %s\n", str);
return 0;
}
void fsl_fdt_fixup_dr_usb(void *blob, bd_t *bd)
{
static const char * const modes[] = { "host", "peripheral", "otg" };
static const char * const phys[] = { "ulpi", "utmi", "utmi_dual" };
int usb_erratum_a006261_off = -1;
int usb_erratum_a007075_off = -1;
int usb_erratum_a007792_off = -1;
int usb_erratum_a005697_off = -1;
int usb_erratum_a008751_off = -1;
int usb_mode_off = -1;
int usb_phy_off = -1;
char str[5];
int i, j;
int ret;
for (i = 1; i <= CONFIG_USB_MAX_CONTROLLER_COUNT; i++) {
const char *dr_mode_type = NULL;
const char *dr_phy_type = NULL;
int mode_idx = -1, phy_idx = -1;
snprintf(str, 5, "%s%d", "usb", i);
if (hwconfig(str)) {
for (j = 0; j < ARRAY_SIZE(modes); j++) {
if (hwconfig_subarg_cmp(str, "dr_mode",
modes[j])) {
mode_idx = j;
break;
}
}
for (j = 0; j < ARRAY_SIZE(phys); j++) {
if (hwconfig_subarg_cmp(str, "phy_type",
phys[j])) {
phy_idx = j;
break;
}
}
if (mode_idx < 0 && phy_idx < 0) {
printf("WARNING: invalid phy or mode\n");
return;
}
if (mode_idx > -1)
dr_mode_type = modes[mode_idx];
if (phy_idx > -1)
dr_phy_type = phys[phy_idx];
}
if (has_dual_phy())
dr_phy_type = phys[2];
usb_mode_off = fdt_fixup_usb_mode_phy_type(blob,
dr_mode_type, NULL,
usb_mode_off);
if (usb_mode_off < 0)
return;
usb_phy_off = fdt_fixup_usb_mode_phy_type(blob,
NULL, dr_phy_type,
usb_phy_off);
if (usb_phy_off < 0)
return;
ret = fdt_fixup_erratum(&usb_erratum_a006261_off, blob,
CHIPIDEA_USB2, "a006261",
has_erratum_a006261);
if (ret == -ENOSPC)
return;
ret = fdt_fixup_erratum(&usb_erratum_a007075_off, blob,
CHIPIDEA_USB2, "a007075",
has_erratum_a007075);
if (ret == -ENOSPC)
return;
ret = fdt_fixup_erratum(&usb_erratum_a007792_off, blob,
CHIPIDEA_USB2, "a007792",
has_erratum_a007792);
if (ret == -ENOSPC)
return;
ret = fdt_fixup_erratum(&usb_erratum_a005697_off, blob,
CHIPIDEA_USB2, "a005697",
has_erratum_a005697);
if (ret == -ENOSPC)
return;
ret = fdt_fixup_erratum(&usb_erratum_a008751_off, blob,
SNPS_DWC3, "a008751",
has_erratum_a008751);
if (ret == -ENOSPC)
return;
}
}
|
