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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 | // 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; if (is_mt7663(&dev->mt76)) len = MT7663_EEPROM_SIZE; 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; BUILD_BUG_ON(MT7615_EEPROM_FULL_SIZE < MT7663_EEPROM_SIZE); 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: case 0x7663: 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->mphy.cap.has_2ghz = true; dev->mphy.cap.has_5ghz = true; return; } if (is_mt7622(&dev->mt76)) { /* 2GHz only */ dev->mphy.cap.has_2ghz = true; return; } if (is_mt7611(&dev->mt76)) { /* 5GHz only */ dev->mphy.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->mphy.cap.has_5ghz = true; break; case MT_EE_DBDC: dev->dbdc_support = true; fallthrough; case MT_EE_2GHZ: dev->mphy.cap.has_2ghz = true; break; default: dev->mphy.cap.has_2ghz = true; dev->mphy.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->mphy.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, dev->mt76.otp.size); } else { dev->flash_eeprom = true; mt7615_cal_free_data(dev); } mt7615_eeprom_parse_hw_cap(dev); memcpy(dev->mphy.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR, ETH_ALEN); mt76_eeprom_override(&dev->mphy); return 0; } EXPORT_SYMBOL_GPL(mt7615_eeprom_init); |