diff options
| -rw-r--r-- | package/kernel/mac80211/patches/rt2x00/982-rt2x00-add-rf-self-txdc-calibration.patch | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/rt2x00/982-rt2x00-add-rf-self-txdc-calibration.patch b/package/kernel/mac80211/patches/rt2x00/982-rt2x00-add-rf-self-txdc-calibration.patch new file mode 100644 index 0000000000..f5874f8514 --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/982-rt2x00-add-rf-self-txdc-calibration.patch @@ -0,0 +1,89 @@ +--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +@@ -7652,6 +7652,58 @@ static void rt2800_init_rfcsr_5592(struc + rt2800_led_open_drain_enable(rt2x00dev); + } + ++void rt2800_rf_self_txdc_cal(struct rt2x00_dev *rt2x00dev) ++{ ++ u8 rfb5r1_org, rfb7r1_org, rfvalue; ++ u32 mac0518, mac051c, mac0528, mac052c; ++ u8 i; ++ ++ rt2x00_info(rt2x00dev, "RF Tx self calibration start\n"); ++ 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 = i + 1) { ++ udelay(50); ++ 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 = i + 1) { ++ udelay(50); ++ 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); ++ ++ rt2x00_info(rt2x00dev, "RF Tx self calibration end\n"); ++ ++} ++EXPORT_SYMBOL_GPL(rt2800_rf_self_txdc_cal); ++ + static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev, + bool set_bw, bool is_ht40) + { +@@ -8259,6 +8311,7 @@ static void rt2800_init_rfcsr_6352(struc + 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); + } +--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.h ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.h +@@ -227,6 +227,7 @@ void rt2800_link_tuner(struct rt2x00_dev + const u32 count); + void rt2800_gain_calibration(struct rt2x00_dev *rt2x00dev); + void rt2800_vco_calibration(struct rt2x00_dev *rt2x00dev); ++void rt2800_rf_self_txdc_cal(struct rt2x00_dev *rt2x00dev); + + int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev); + void rt2800_disable_radio(struct rt2x00_dev *rt2x00dev); +--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h ++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h +@@ -570,6 +570,7 @@ struct rt2x00lib_ops { + struct link_qual *qual, const u32 count); + void (*gain_calibration) (struct rt2x00_dev *rt2x00dev); + void (*vco_calibration) (struct rt2x00_dev *rt2x00dev); ++ void (*rf_self_txdc_cal) (struct rt2x00_dev *rt2x00dev); + + /* + * Data queue handlers. |