Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Felix Fietkau | 772 | 100.00% | 1 | 100.00% |
Total | 772 | 1 |
/* SPDX-License-Identifier: ISC */ #include "mt7603.h" #include "eeprom.h" static int mt7603_efuse_read(struct mt7603_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, 0xff, 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 mt7603_efuse_init(struct mt7603_dev *dev) { u32 base = mt7603_reg_map(dev, MT_EFUSE_BASE); int len = MT7603_EEPROM_SIZE; void *buf; int ret, i; if (mt76_rr(dev, base + MT_EFUSE_BASE_CTRL) & 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) { ret = mt7603_efuse_read(dev, base, i, buf + i); if (ret) return ret; } return 0; } static bool mt7603_has_cal_free_data(struct mt7603_dev *dev, u8 *efuse) { if (!efuse[MT_EE_TEMP_SENSOR_CAL]) return false; if (get_unaligned_le16(efuse + MT_EE_TX_POWER_0_START_2G) == 0) return false; if (get_unaligned_le16(efuse + MT_EE_TX_POWER_1_START_2G) == 0) return false; if (!efuse[MT_EE_CP_FT_VERSION]) return false; if (!efuse[MT_EE_XTAL_FREQ_OFFSET]) return false; if (!efuse[MT_EE_XTAL_WF_RFCAL]) return false; return true; } static void mt7603_apply_cal_free_data(struct mt7603_dev *dev, u8 *efuse) { static const u8 cal_free_bytes[] = { MT_EE_TEMP_SENSOR_CAL, MT_EE_CP_FT_VERSION, MT_EE_XTAL_FREQ_OFFSET, MT_EE_XTAL_WF_RFCAL, /* Skip for MT7628 */ MT_EE_TX_POWER_0_START_2G, MT_EE_TX_POWER_0_START_2G + 1, MT_EE_TX_POWER_1_START_2G, MT_EE_TX_POWER_1_START_2G + 1, }; u8 *eeprom = dev->mt76.eeprom.data; int n = ARRAY_SIZE(cal_free_bytes); int i; if (!mt7603_has_cal_free_data(dev, efuse)) return; if (is_mt7628(dev)) n -= 4; for (i = 0; i < n; i++) { int offset = cal_free_bytes[i]; eeprom[offset] = efuse[offset]; } } static int mt7603_eeprom_load(struct mt7603_dev *dev) { int ret; ret = mt76_eeprom_init(&dev->mt76, MT7603_EEPROM_SIZE); if (ret < 0) return ret; return mt7603_efuse_init(dev); } static int mt7603_check_eeprom(struct mt76_dev *dev) { u16 val = get_unaligned_le16(dev->eeprom.data); switch (val) { case 0x7628: case 0x7603: return 0; default: return -EINVAL; } } int mt7603_eeprom_init(struct mt7603_dev *dev) { int ret; ret = mt7603_eeprom_load(dev); if (ret < 0) return ret; if (dev->mt76.otp.data) { if (mt7603_check_eeprom(&dev->mt76) == 0) mt7603_apply_cal_free_data(dev, dev->mt76.otp.data); else memcpy(dev->mt76.eeprom.data, dev->mt76.otp.data, MT7603_EEPROM_SIZE); } dev->mt76.cap.has_2ghz = true; memcpy(dev->mt76.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR, ETH_ALEN); mt76_eeprom_override(&dev->mt76); return 0; }
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