diff options
Diffstat (limited to 'package/kernel/mac80211/patches/rt2x00/982-rt2x00-add-RF-self-TXDC-calibration.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/rt2x00/982-rt2x00-add-RF-self-TXDC-calibration.patch | 81 |
1 files changed, 81 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..b74bea2020 --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/982-rt2x00-add-RF-self-TXDC-calibration.patch @@ -0,0 +1,81 @@ +From: =?UTF-8?q?Tomislav=20Po=C5=BEega?= <pozega.tomislav@gmail.com> +Date: Mon, 8 Jan 2018 13:42:27 +0100 +Subject: [PATCH] rt2x00: add RF self TXDC calibration +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Add TX self calibration based on mtk driver. + +Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com> +--- + .../net/wireless/ralink/rt2x00/rt2800lib.c | 51 +++++++++++++++++++ + 1 file changed, 51 insertions(+) + +--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +@@ -8438,6 +8438,56 @@ static void rt2800_init_rfcsr_5592(struc + 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; ++ ++ 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"); ++} ++ + static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev, + bool set_bw, bool is_ht40) + { +@@ -9045,6 +9095,7 @@ 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); + } |