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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
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@ -8428,6 +8428,53 @@ static void rt2800_init_rfcsr_5592(struct rt2x00_dev *rt2x00dev)
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rt2800_led_open_drain_enable(rt2x00dev);
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}
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static void rt2800_rf_self_txdc_cal(struct rt2x00_dev *rt2x00dev)
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{
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u8 rfb5r1_org, rfb7r1_org, rfvalue;
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u32 mac0518, mac051c, mac0528, mac052c;
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u8 i;
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mac0518 = rt2800_register_read(rt2x00dev, RF_CONTROL0);
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mac051c = rt2800_register_read(rt2x00dev, RF_BYPASS0);
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mac0528 = rt2800_register_read(rt2x00dev, RF_CONTROL2);
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mac052c = rt2800_register_read(rt2x00dev, RF_BYPASS2);
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rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x0);
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rt2800_register_write(rt2x00dev, RF_BYPASS2, 0x0);
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rt2800_register_write(rt2x00dev, RF_CONTROL0, 0xC);
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rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x3306);
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rt2800_register_write(rt2x00dev, RF_CONTROL2, 0x3330);
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rt2800_register_write(rt2x00dev, RF_BYPASS2, 0xfffff);
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rfb5r1_org = rt2800_rfcsr_read_bank(rt2x00dev, 5, 1);
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rfb7r1_org = rt2800_rfcsr_read_bank(rt2x00dev, 7, 1);
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rt2800_rfcsr_write_bank(rt2x00dev, 5, 1, 0x4);
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for (i = 0; i < 100; ++i) {
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usleep_range(50, 100);
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rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 5, 1);
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if ((rfvalue & 0x04) != 0x4)
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break;
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}
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rt2800_rfcsr_write_bank(rt2x00dev, 5, 1, rfb5r1_org);
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rt2800_rfcsr_write_bank(rt2x00dev, 7, 1, 0x4);
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for (i = 0; i < 100; ++i) {
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usleep_range(50, 100);
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rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 7, 1);
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if ((rfvalue & 0x04) != 0x4)
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break;
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}
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rt2800_rfcsr_write_bank(rt2x00dev, 7, 1, rfb7r1_org);
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rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x0);
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rt2800_register_write(rt2x00dev, RF_BYPASS2, 0x0);
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rt2800_register_write(rt2x00dev, RF_CONTROL0, mac0518);
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rt2800_register_write(rt2x00dev, RF_BYPASS0, mac051c);
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rt2800_register_write(rt2x00dev, RF_CONTROL2, mac0528);
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rt2800_register_write(rt2x00dev, RF_BYPASS2, mac052c);
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}
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static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev,
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bool set_bw, bool is_ht40)
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{
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@ -9035,6 +9082,7 @@ static void rt2800_init_rfcsr_6352(struct rt2x00_dev *rt2x00dev)
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rt2800_rfcsr_write_dccal(rt2x00dev, 5, 0x00);
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rt2800_rfcsr_write_dccal(rt2x00dev, 17, 0x7C);
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rt2800_rf_self_txdc_cal(rt2x00dev);
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rt2800_bw_filter_calibration(rt2x00dev, true);
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rt2800_bw_filter_calibration(rt2x00dev, false);
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}
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