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
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
|
/*
* Copyright (C) 2015 Freescale Semiconductor, Inc. All rights reserved.
*
* Authors: Zhao Qiang <qiang.zhao@nxp.com>
*
* Description:
* QE TDM API Set - TDM specific routines implementations.
*
* 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.
*/
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <soc/fsl/qe/qe_tdm.h>
static int set_tdm_framer(const char *tdm_framer_type)
{
if (strcmp(tdm_framer_type, "e1") == 0)
return TDM_FRAMER_E1;
else if (strcmp(tdm_framer_type, "t1") == 0)
return TDM_FRAMER_T1;
else
return -EINVAL;
}
static void set_si_param(struct ucc_tdm *utdm, struct ucc_tdm_info *ut_info)
{
struct si_mode_info *si_info = &ut_info->si_info;
if (utdm->tdm_mode == TDM_INTERNAL_LOOPBACK) {
si_info->simr_crt = 1;
si_info->simr_rfsd = 0;
}
}
int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
struct ucc_tdm_info *ut_info)
{
const char *sprop;
int ret = 0;
u32 val;
struct resource *res;
struct device_node *np2;
static int siram_init_flag;
struct platform_device *pdev;
sprop = of_get_property(np, "fsl,rx-sync-clock", NULL);
if (sprop) {
ut_info->uf_info.rx_sync = qe_clock_source(sprop);
if ((ut_info->uf_info.rx_sync < QE_CLK_NONE) ||
(ut_info->uf_info.rx_sync > QE_RSYNC_PIN)) {
pr_err("QE-TDM: Invalid rx-sync-clock property\n");
return -EINVAL;
}
} else {
pr_err("QE-TDM: Invalid rx-sync-clock property\n");
return -EINVAL;
}
sprop = of_get_property(np, "fsl,tx-sync-clock", NULL);
if (sprop) {
ut_info->uf_info.tx_sync = qe_clock_source(sprop);
if ((ut_info->uf_info.tx_sync < QE_CLK_NONE) ||
(ut_info->uf_info.tx_sync > QE_TSYNC_PIN)) {
pr_err("QE-TDM: Invalid tx-sync-clock property\n");
return -EINVAL;
}
} else {
pr_err("QE-TDM: Invalid tx-sync-clock property\n");
return -EINVAL;
}
ret = of_property_read_u32_index(np, "fsl,tx-timeslot-mask", 0, &val);
if (ret) {
pr_err("QE-TDM: Invalid tx-timeslot-mask property\n");
return -EINVAL;
}
utdm->tx_ts_mask = val;
ret = of_property_read_u32_index(np, "fsl,rx-timeslot-mask", 0, &val);
if (ret) {
ret = -EINVAL;
pr_err("QE-TDM: Invalid rx-timeslot-mask property\n");
return ret;
}
utdm->rx_ts_mask = val;
ret = of_property_read_u32_index(np, "fsl,tdm-id", 0, &val);
if (ret) {
ret = -EINVAL;
pr_err("QE-TDM: No fsl,tdm-id property for this UCC\n");
return ret;
}
utdm->tdm_port = val;
ut_info->uf_info.tdm_num = utdm->tdm_port;
if (of_property_read_bool(np, "fsl,tdm-internal-loopback"))
utdm->tdm_mode = TDM_INTERNAL_LOOPBACK;
else
utdm->tdm_mode = TDM_NORMAL;
sprop = of_get_property(np, "fsl,tdm-framer-type", NULL);
if (!sprop) {
ret = -EINVAL;
pr_err("QE-TDM: No tdm-framer-type property for UCC\n");
return ret;
}
ret = set_tdm_framer(sprop);
if (ret < 0)
return -EINVAL;
utdm->tdm_framer_type = ret;
ret = of_property_read_u32_index(np, "fsl,siram-entry-id", 0, &val);
if (ret) {
ret = -EINVAL;
pr_err("QE-TDM: No siram entry id for UCC\n");
return ret;
}
utdm->siram_entry_id = val;
set_si_param(utdm, ut_info);
np2 = of_find_compatible_node(NULL, NULL, "fsl,t1040-qe-si");
if (!np2)
return -EINVAL;
pdev = of_find_device_by_node(np2);
if (!pdev) {
pr_err("%pOFn: failed to lookup pdev\n", np2);
of_node_put(np2);
return -EINVAL;
}
of_node_put(np2);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
utdm->si_regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(utdm->si_regs)) {
ret = PTR_ERR(utdm->si_regs);
goto err_miss_siram_property;
}
np2 = of_find_compatible_node(NULL, NULL, "fsl,t1040-qe-siram");
if (!np2) {
ret = -EINVAL;
goto err_miss_siram_property;
}
pdev = of_find_device_by_node(np2);
if (!pdev) {
ret = -EINVAL;
pr_err("%pOFn: failed to lookup pdev\n", np2);
of_node_put(np2);
goto err_miss_siram_property;
}
of_node_put(np2);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
utdm->siram = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(utdm->siram)) {
ret = PTR_ERR(utdm->siram);
goto err_miss_siram_property;
}
if (siram_init_flag == 0) {
memset_io(utdm->siram, 0, resource_size(res));
siram_init_flag = 1;
}
return ret;
err_miss_siram_property:
devm_iounmap(&pdev->dev, utdm->si_regs);
return ret;
}
EXPORT_SYMBOL(ucc_of_parse_tdm);
void ucc_tdm_init(struct ucc_tdm *utdm, struct ucc_tdm_info *ut_info)
{
struct si1 __iomem *si_regs;
u16 __iomem *siram;
u16 siram_entry_valid;
u16 siram_entry_closed;
u16 ucc_num;
u8 csel;
u16 sixmr;
u16 tdm_port;
u32 siram_entry_id;
u32 mask;
int i;
si_regs = utdm->si_regs;
siram = utdm->siram;
ucc_num = ut_info->uf_info.ucc_num;
tdm_port = utdm->tdm_port;
siram_entry_id = utdm->siram_entry_id;
if (utdm->tdm_framer_type == TDM_FRAMER_T1)
utdm->num_of_ts = 24;
if (utdm->tdm_framer_type == TDM_FRAMER_E1)
utdm->num_of_ts = 32;
/* set siram table */
csel = (ucc_num < 4) ? ucc_num + 9 : ucc_num - 3;
siram_entry_valid = SIR_CSEL(csel) | SIR_BYTE | SIR_CNT(0);
siram_entry_closed = SIR_IDLE | SIR_BYTE | SIR_CNT(0);
for (i = 0; i < utdm->num_of_ts; i++) {
mask = 0x01 << i;
if (utdm->tx_ts_mask & mask)
iowrite16be(siram_entry_valid,
&siram[siram_entry_id * 32 + i]);
else
iowrite16be(siram_entry_closed,
&siram[siram_entry_id * 32 + i]);
if (utdm->rx_ts_mask & mask)
iowrite16be(siram_entry_valid,
&siram[siram_entry_id * 32 + 0x200 + i]);
else
iowrite16be(siram_entry_closed,
&siram[siram_entry_id * 32 + 0x200 + i]);
}
setbits16(&siram[(siram_entry_id * 32) + (utdm->num_of_ts - 1)],
SIR_LAST);
setbits16(&siram[(siram_entry_id * 32) + 0x200 + (utdm->num_of_ts - 1)],
SIR_LAST);
/* Set SIxMR register */
sixmr = SIMR_SAD(siram_entry_id);
sixmr &= ~SIMR_SDM_MASK;
if (utdm->tdm_mode == TDM_INTERNAL_LOOPBACK)
sixmr |= SIMR_SDM_INTERNAL_LOOPBACK;
else
sixmr |= SIMR_SDM_NORMAL;
sixmr |= SIMR_RFSD(ut_info->si_info.simr_rfsd) |
SIMR_TFSD(ut_info->si_info.simr_tfsd);
if (ut_info->si_info.simr_crt)
sixmr |= SIMR_CRT;
if (ut_info->si_info.simr_sl)
sixmr |= SIMR_SL;
if (ut_info->si_info.simr_ce)
sixmr |= SIMR_CE;
if (ut_info->si_info.simr_fe)
sixmr |= SIMR_FE;
if (ut_info->si_info.simr_gm)
sixmr |= SIMR_GM;
switch (tdm_port) {
case 0:
iowrite16be(sixmr, &si_regs->sixmr1[0]);
break;
case 1:
iowrite16be(sixmr, &si_regs->sixmr1[1]);
break;
case 2:
iowrite16be(sixmr, &si_regs->sixmr1[2]);
break;
case 3:
iowrite16be(sixmr, &si_regs->sixmr1[3]);
break;
default:
pr_err("QE-TDM: can not find tdm sixmr reg\n");
break;
}
}
EXPORT_SYMBOL(ucc_tdm_init);
|
