diff options
| author | Tomislav Požega <pozega.tomislav@gmail.com> | 2022-09-17 21:27:26 +0100 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2022-09-24 15:30:55 +0300 |
| commit | 26d76c370f692c7a73fb2229cba4e1c725b1abec (patch) | |
| tree | 4dde228d89a8d571f375d0db3b61a59ed7f08976 | |
| parent | 685bcf2f9a13827f9542a0682e6368f972359d31 (diff) | |
wifi: rt2x00: add RF self TXDC calibration for MT7620
Add TX self calibration based on mtk driver.
Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/dbb6e5a0c12d6101477bd09e83253091d21512c9.1663445157.git.daniel@makrotopia.org
| -rw-r--r-- | drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c index cf5463cb7b64..ed2c6105899b 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c @@ -8428,6 +8428,53 @@ static void rt2800_init_rfcsr_5592(struct rt2x00_dev *rt2x00dev) rt2800_led_open_drain_enable(rt2x00dev); } +static void rt2800_rf_self_txdc_cal(struct rt2x00_dev *rt2x00dev) +{ + u8 rfb5r1_org, rfb7r1_org, rfvalue; + u32 mac0518, mac051c, mac0528, mac052c; + u8 i; + + mac0518 = rt2800_register_read(rt2x00dev, RF_CONTROL0); + mac051c = rt2800_register_read(rt2x00dev, RF_BYPASS0); + mac0528 = rt2800_register_read(rt2x00dev, RF_CONTROL2); + mac052c = rt2800_register_read(rt2x00dev, RF_BYPASS2); + + rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x0); + rt2800_register_write(rt2x00dev, RF_BYPASS2, 0x0); + + rt2800_register_write(rt2x00dev, RF_CONTROL0, 0xC); + rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x3306); + rt2800_register_write(rt2x00dev, RF_CONTROL2, 0x3330); + rt2800_register_write(rt2x00dev, RF_BYPASS2, 0xfffff); + rfb5r1_org = rt2800_rfcsr_read_bank(rt2x00dev, 5, 1); + rfb7r1_org = rt2800_rfcsr_read_bank(rt2x00dev, 7, 1); + + rt2800_rfcsr_write_bank(rt2x00dev, 5, 1, 0x4); + for (i = 0; i < 100; ++i) { + usleep_range(50, 100); + rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 5, 1); + if ((rfvalue & 0x04) != 0x4) + break; + } + rt2800_rfcsr_write_bank(rt2x00dev, 5, 1, rfb5r1_org); + + rt2800_rfcsr_write_bank(rt2x00dev, 7, 1, 0x4); + for (i = 0; i < 100; ++i) { + usleep_range(50, 100); + rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 7, 1); + if ((rfvalue & 0x04) != 0x4) + break; + } + rt2800_rfcsr_write_bank(rt2x00dev, 7, 1, rfb7r1_org); + + rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x0); + rt2800_register_write(rt2x00dev, RF_BYPASS2, 0x0); + rt2800_register_write(rt2x00dev, RF_CONTROL0, mac0518); + rt2800_register_write(rt2x00dev, RF_BYPASS0, mac051c); + rt2800_register_write(rt2x00dev, RF_CONTROL2, mac0528); + rt2800_register_write(rt2x00dev, RF_BYPASS2, mac052c); +} + static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev, bool set_bw, bool is_ht40) { @@ -9035,6 +9082,7 @@ static void rt2800_init_rfcsr_6352(struct rt2x00_dev *rt2x00dev) rt2800_rfcsr_write_dccal(rt2x00dev, 5, 0x00); rt2800_rfcsr_write_dccal(rt2x00dev, 17, 0x7C); + rt2800_rf_self_txdc_cal(rt2x00dev); rt2800_bw_filter_calibration(rt2x00dev, true); rt2800_bw_filter_calibration(rt2x00dev, false); } |