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
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
|
// SPDX-License-Identifier: ISC
/* Copyright (C) 2019 MediaTek Inc.
*
* Author: Ryder Lee <ryder.lee@mediatek.com>
* Felix Fietkau <nbd@nbd.name>
*/
#include <linux/of.h>
#include "mt7615.h"
#include "eeprom.h"
static int mt7615_efuse_read(struct mt7615_dev *dev, u32 base,
u16 addr, u8 *data)
{
u32 val;
int i;
val = mt76_rr(dev, base + MT_EFUSE_CTRL);
val &= ~(MT_EFUSE_CTRL_AIN | MT_EFUSE_CTRL_MODE);
val |= FIELD_PREP(MT_EFUSE_CTRL_AIN, addr & ~0xf);
val |= MT_EFUSE_CTRL_KICK;
mt76_wr(dev, base + MT_EFUSE_CTRL, val);
if (!mt76_poll(dev, base + MT_EFUSE_CTRL, MT_EFUSE_CTRL_KICK, 0, 1000))
return -ETIMEDOUT;
udelay(2);
val = mt76_rr(dev, base + MT_EFUSE_CTRL);
if ((val & MT_EFUSE_CTRL_AOUT) == MT_EFUSE_CTRL_AOUT ||
WARN_ON_ONCE(!(val & MT_EFUSE_CTRL_VALID))) {
memset(data, 0x0, 16);
return 0;
}
for (i = 0; i < 4; i++) {
val = mt76_rr(dev, base + MT_EFUSE_RDATA(i));
put_unaligned_le32(val, data + 4 * i);
}
return 0;
}
static int mt7615_efuse_init(struct mt7615_dev *dev, u32 base)
{
int i, len = MT7615_EEPROM_SIZE;
void *buf;
u32 val;
val = mt76_rr(dev, base + MT_EFUSE_BASE_CTRL);
if (val & MT_EFUSE_BASE_CTRL_EMPTY)
return 0;
dev->mt76.otp.data = devm_kzalloc(dev->mt76.dev, len, GFP_KERNEL);
dev->mt76.otp.size = len;
if (!dev->mt76.otp.data)
return -ENOMEM;
buf = dev->mt76.otp.data;
for (i = 0; i + 16 <= len; i += 16) {
int ret;
ret = mt7615_efuse_read(dev, base, i, buf + i);
if (ret)
return ret;
}
return 0;
}
static int mt7615_eeprom_load(struct mt7615_dev *dev, u32 addr)
{
int ret;
ret = mt76_eeprom_init(&dev->mt76, MT7615_EEPROM_FULL_SIZE);
if (ret < 0)
return ret;
return mt7615_efuse_init(dev, addr);
}
static int mt7615_check_eeprom(struct mt76_dev *dev)
{
u16 val = get_unaligned_le16(dev->eeprom.data);
switch (val) {
case 0x7615:
case 0x7622:
return 0;
default:
return -EINVAL;
}
}
static void
mt7615_eeprom_parse_hw_band_cap(struct mt7615_dev *dev)
{
u8 val, *eeprom = dev->mt76.eeprom.data;
if (is_mt7663(&dev->mt76)) {
/* dual band */
dev->mt76.cap.has_2ghz = true;
dev->mt76.cap.has_5ghz = true;
return;
}
if (is_mt7622(&dev->mt76)) {
/* 2GHz only */
dev->mt76.cap.has_2ghz = true;
return;
}
if (is_mt7611(&dev->mt76)) {
/* 5GHz only */
dev->mt76.cap.has_5ghz = true;
return;
}
val = FIELD_GET(MT_EE_NIC_WIFI_CONF_BAND_SEL,
eeprom[MT_EE_WIFI_CONF]);
switch (val) {
case MT_EE_5GHZ:
dev->mt76.cap.has_5ghz = true;
break;
case MT_EE_2GHZ:
dev->mt76.cap.has_2ghz = true;
break;
default:
dev->mt76.cap.has_2ghz = true;
dev->mt76.cap.has_5ghz = true;
break;
}
}
static void mt7615_eeprom_parse_hw_cap(struct mt7615_dev *dev)
{
u8 *eeprom = dev->mt76.eeprom.data;
u8 tx_mask, max_nss;
mt7615_eeprom_parse_hw_band_cap(dev);
if (is_mt7663(&dev->mt76)) {
max_nss = 2;
tx_mask = FIELD_GET(MT_EE_HW_CONF1_TX_MASK,
eeprom[MT7663_EE_HW_CONF1]);
} else {
u32 val;
/* read tx-rx mask from eeprom */
val = mt76_rr(dev, MT_TOP_STRAP_STA);
max_nss = val & MT_TOP_3NSS ? 3 : 4;
tx_mask = FIELD_GET(MT_EE_NIC_CONF_TX_MASK,
eeprom[MT_EE_NIC_CONF_0]);
}
if (!tx_mask || tx_mask > max_nss)
tx_mask = max_nss;
dev->chainmask = BIT(tx_mask) - 1;
dev->mphy.antenna_mask = dev->chainmask;
dev->phy.chainmask = dev->chainmask;
}
static int mt7663_eeprom_get_target_power_index(struct mt7615_dev *dev,
struct ieee80211_channel *chan,
u8 chain_idx)
{
int index, group;
if (chain_idx > 1)
return -EINVAL;
if (chan->band == NL80211_BAND_2GHZ)
return MT7663_EE_TX0_2G_TARGET_POWER + (chain_idx << 4);
group = mt7615_get_channel_group(chan->hw_value);
if (chain_idx == 1)
index = MT7663_EE_TX1_5G_G0_TARGET_POWER;
else
index = MT7663_EE_TX0_5G_G0_TARGET_POWER;
return index + group * 3;
}
int mt7615_eeprom_get_target_power_index(struct mt7615_dev *dev,
struct ieee80211_channel *chan,
u8 chain_idx)
{
int index;
if (is_mt7663(&dev->mt76))
return mt7663_eeprom_get_target_power_index(dev, chan,
chain_idx);
if (chain_idx > 3)
return -EINVAL;
/* TSSI disabled */
if (mt7615_ext_pa_enabled(dev, chan->band)) {
if (chan->band == NL80211_BAND_2GHZ)
return MT_EE_EXT_PA_2G_TARGET_POWER;
else
return MT_EE_EXT_PA_5G_TARGET_POWER;
}
/* TSSI enabled */
if (chan->band == NL80211_BAND_2GHZ) {
index = MT_EE_TX0_2G_TARGET_POWER + chain_idx * 6;
} else {
int group = mt7615_get_channel_group(chan->hw_value);
switch (chain_idx) {
case 1:
index = MT_EE_TX1_5G_G0_TARGET_POWER;
break;
case 2:
index = MT_EE_TX2_5G_G0_TARGET_POWER;
break;
case 3:
index = MT_EE_TX3_5G_G0_TARGET_POWER;
break;
case 0:
default:
index = MT_EE_TX0_5G_G0_TARGET_POWER;
break;
}
index += 5 * group;
}
return index;
}
int mt7615_eeprom_get_power_delta_index(struct mt7615_dev *dev,
enum nl80211_band band)
{
/* assume the first rate has the highest power offset */
if (is_mt7663(&dev->mt76)) {
if (band == NL80211_BAND_2GHZ)
return MT_EE_TX0_5G_G0_TARGET_POWER;
else
return MT7663_EE_5G_RATE_POWER;
}
if (band == NL80211_BAND_2GHZ)
return MT_EE_2G_RATE_POWER;
else
return MT_EE_5G_RATE_POWER;
}
static void mt7615_apply_cal_free_data(struct mt7615_dev *dev)
{
static const u16 ical[] = {
0x53, 0x54, 0x55, 0x56, 0x57, 0x5c, 0x5d, 0x62, 0x63, 0x68,
0x69, 0x6e, 0x6f, 0x73, 0x74, 0x78, 0x79, 0x82, 0x83, 0x87,
0x88, 0x8c, 0x8d, 0x91, 0x92, 0x96, 0x97, 0x9b, 0x9c, 0xa0,
0xa1, 0xaa, 0xab, 0xaf, 0xb0, 0xb4, 0xb5, 0xb9, 0xba, 0xf4,
0xf7, 0xff,
0x140, 0x141, 0x145, 0x146, 0x14a, 0x14b, 0x154, 0x155, 0x159,
0x15a, 0x15e, 0x15f, 0x163, 0x164, 0x168, 0x169, 0x16d, 0x16e,
0x172, 0x173, 0x17c, 0x17d, 0x181, 0x182, 0x186, 0x187, 0x18b,
0x18c
};
static const u16 ical_nocheck[] = {
0x110, 0x111, 0x112, 0x113, 0x114, 0x115, 0x116, 0x117, 0x118,
0x1b5, 0x1b6, 0x1b7, 0x3ac, 0x3ad, 0x3ae, 0x3af, 0x3b0, 0x3b1,
0x3b2
};
u8 *eeprom = dev->mt76.eeprom.data;
u8 *otp = dev->mt76.otp.data;
int i;
if (!otp)
return;
for (i = 0; i < ARRAY_SIZE(ical); i++)
if (!otp[ical[i]])
return;
for (i = 0; i < ARRAY_SIZE(ical); i++)
eeprom[ical[i]] = otp[ical[i]];
for (i = 0; i < ARRAY_SIZE(ical_nocheck); i++)
eeprom[ical_nocheck[i]] = otp[ical_nocheck[i]];
}
static void mt7622_apply_cal_free_data(struct mt7615_dev *dev)
{
static const u16 ical[] = {
0x53, 0x54, 0x55, 0x56, 0xf4, 0xf7, 0x144, 0x156, 0x15b
};
u8 *eeprom = dev->mt76.eeprom.data;
u8 *otp = dev->mt76.otp.data;
int i;
if (!otp)
return;
for (i = 0; i < ARRAY_SIZE(ical); i++) {
if (!otp[ical[i]])
continue;
eeprom[ical[i]] = otp[ical[i]];
}
}
static void mt7615_cal_free_data(struct mt7615_dev *dev)
{
struct device_node *np = dev->mt76.dev->of_node;
if (!np || !of_property_read_bool(np, "mediatek,eeprom-merge-otp"))
return;
switch (mt76_chip(&dev->mt76)) {
case 0x7622:
mt7622_apply_cal_free_data(dev);
break;
case 0x7615:
case 0x7611:
mt7615_apply_cal_free_data(dev);
break;
}
}
int mt7615_eeprom_init(struct mt7615_dev *dev, u32 addr)
{
int ret;
ret = mt7615_eeprom_load(dev, addr);
if (ret < 0)
return ret;
ret = mt7615_check_eeprom(&dev->mt76);
if (ret && dev->mt76.otp.data) {
memcpy(dev->mt76.eeprom.data, dev->mt76.otp.data,
MT7615_EEPROM_SIZE);
} else {
dev->flash_eeprom = true;
mt7615_cal_free_data(dev);
}
mt7615_eeprom_parse_hw_cap(dev);
memcpy(dev->mt76.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR,
ETH_ALEN);
mt76_eeprom_override(&dev->mt76);
return 0;
}
EXPORT_SYMBOL_GPL(mt7615_eeprom_init);
|
