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
|
/*
* Copyright 2009-2010 Freescale Semiconductor, Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/fsl_serdes.h>
#include <asm/immap_85xx.h>
#include <asm/io.h>
#include <asm/processor.h>
#include "fsl_corenet_serdes.h"
static u32 serdes_prtcl_map;
#ifdef DEBUG
static const char *serdes_prtcl_str[] = {
[NONE] = "NA",
[PCIE1] = "PCIE1",
[PCIE2] = "PCIE2",
[PCIE3] = "PCIE3",
[PCIE4] = "PCIE4",
[SATA1] = "SATA1",
[SATA2] = "SATA2",
[SRIO1] = "SRIO1",
[SRIO2] = "SRIO2",
[SGMII_FM1_DTSEC1] = "SGMII_FM1_DTSEC1",
[SGMII_FM1_DTSEC2] = "SGMII_FM1_DTSEC2",
[SGMII_FM1_DTSEC3] = "SGMII_FM1_DTSEC3",
[SGMII_FM1_DTSEC4] = "SGMII_FM1_DTSEC4",
[SGMII_FM1_DTSEC5] = "SGMII_FM1_DTSEC5",
[SGMII_FM2_DTSEC1] = "SGMII_FM2_DTSEC1",
[SGMII_FM2_DTSEC2] = "SGMII_FM2_DTSEC2",
[SGMII_FM2_DTSEC3] = "SGMII_FM2_DTSEC3",
[SGMII_FM2_DTSEC4] = "SGMII_FM2_DTSEC4",
[XAUI_FM1] = "XAUI_FM1",
[XAUI_FM2] = "XAUI_FM2",
[AURORA] = "DEBUG",
};
#endif
static const struct {
int idx;
unsigned int lpd; /* RCW lane powerdown bit */
int bank;
} lanes[SRDS_MAX_LANES] = {
{ 0, 152, FSL_SRDS_BANK_1 },
{ 1, 153, FSL_SRDS_BANK_1 },
{ 2, 154, FSL_SRDS_BANK_1 },
{ 3, 155, FSL_SRDS_BANK_1 },
{ 4, 156, FSL_SRDS_BANK_1 },
{ 5, 157, FSL_SRDS_BANK_1 },
{ 6, 158, FSL_SRDS_BANK_1 },
{ 7, 159, FSL_SRDS_BANK_1 },
{ 8, 160, FSL_SRDS_BANK_1 },
{ 9, 161, FSL_SRDS_BANK_1 },
{ 16, 162, FSL_SRDS_BANK_2 },
{ 17, 163, FSL_SRDS_BANK_2 },
{ 18, 164, FSL_SRDS_BANK_2 },
{ 19, 165, FSL_SRDS_BANK_2 },
{ 20, 170, FSL_SRDS_BANK_3 },
{ 21, 171, FSL_SRDS_BANK_3 },
{ 22, 172, FSL_SRDS_BANK_3 },
{ 23, 173, FSL_SRDS_BANK_3 },
};
int serdes_get_lane_idx(int lane)
{
return lanes[lane].idx;
}
int serdes_get_bank(int lane)
{
return lanes[lane].bank;
}
int serdes_lane_enabled(int lane)
{
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
serdes_corenet_t *regs = (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR;
int bank = lanes[lane].bank;
int word = lanes[lane].lpd / 32;
int bit = lanes[lane].lpd % 32;
if (in_be32(®s->bank[bank].rstctl) & SRDS_RSTCTL_SDPD)
return 0;
return !(in_be32(&gur->rcwsr[word]) & (0x80000000 >> bit));
}
int is_serdes_configured(enum srds_prtcl device)
{
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
/* Is serdes enabled at all? */
if (!(in_be32(&gur->rcwsr[5]) & FSL_CORENET_RCWSR5_SRDS_EN))
return 0;
return (1 << device) & serdes_prtcl_map;
}
void fsl_serdes_init(void)
{
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
int cfg;
serdes_corenet_t *srds_regs;
int lane, bank, idx;
enum srds_prtcl lane_prtcl;
long long end_tick;
int have_bank[SRDS_MAX_BANK] = {};
/* Is serdes enabled at all? */
if (!(in_be32(&gur->rcwsr[5]) & FSL_CORENET_RCWSR5_SRDS_EN))
return;
srds_regs = (void *)(CONFIG_SYS_FSL_CORENET_SERDES_ADDR);
cfg = (in_be32(&gur->rcwsr[4]) & FSL_CORENET_RCWSR4_SRDS_PRTCL) >> 26;
debug("Using SERDES configuration 0x%x, lane settings:\n", cfg);
if (!is_serdes_prtcl_valid(cfg)) {
printf("SERDES[PRTCL] = 0x%x is not valid\n", cfg);
return;
}
/* Look for banks with all lanes disabled, and power down the bank. */
for (lane = 0; lane < SRDS_MAX_LANES; lane++) {
enum srds_prtcl lane_prtcl = serdes_get_prtcl(cfg, lane);
if (serdes_lane_enabled(lane)) {
have_bank[serdes_get_bank(lane)] = 1;
serdes_prtcl_map |= (1 << lane_prtcl);
}
}
for (bank = 0; bank < SRDS_MAX_BANK; bank++) {
if (!have_bank[bank]) {
printf("SERDES: bank %d disabled\n", bank + 1);
setbits_be32(&srds_regs->bank[bank].rstctl,
SRDS_RSTCTL_SDPD);
}
}
for (lane = 0; lane < SRDS_MAX_LANES; lane++) {
idx = serdes_get_lane_idx(lane);
lane_prtcl = serdes_get_prtcl(cfg, lane);
#ifdef DEBUG
switch (lane) {
case 0:
puts("Bank1: ");
break;
case 10:
puts("\nBank2: ");
break;
case 14:
puts("\nBank3: ");
break;
default:
break;
}
printf("%s ", serdes_prtcl_str[lane_prtcl]);
#endif
}
#ifdef DEBUG
puts("\n");
#endif
for (idx = 0; idx < SRDS_MAX_BANK; idx++) {
u32 rstctl;
bank = idx;
/* Skip disabled banks */
if (!have_bank[bank])
continue;
/* reset banks for errata */
setbits_be32(&srds_regs->bank[bank].rstctl, SRDS_RSTCTL_RST);
/* wait for reset complete or 1-second timeout */
end_tick = usec2ticks(1000000) + get_ticks();
do {
rstctl = in_be32(&srds_regs->bank[bank].rstctl);
if (rstctl & SRDS_RSTCTL_RSTDONE)
break;
} while (end_tick > get_ticks());
if (!(rstctl & SRDS_RSTCTL_RSTDONE)) {
printf("SERDES: timeout resetting bank %d\n",
bank + 1);
continue;
}
}
}
|
