diff options
Diffstat (limited to 'package/kernel/mac80211/patches/rt2x00/005-rt2x00-add-RF-self-TXDC-calibration-for-MT7620.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/rt2x00/005-rt2x00-add-RF-self-TXDC-calibration-for-MT7620.patch | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/rt2x00/005-rt2x00-add-RF-self-TXDC-calibration-for-MT7620.patch b/package/kernel/mac80211/patches/rt2x00/005-rt2x00-add-RF-self-TXDC-calibration-for-MT7620.patch new file mode 100644 index 0000000000..4e98d6a375 --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/005-rt2x00-add-RF-self-TXDC-calibration-for-MT7620.patch @@ -0,0 +1,106 @@ +From patchwork Sat Sep 17 20:27:26 2022 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 8bit +X-Patchwork-Submitter: Daniel Golle <daniel@makrotopia.org> +X-Patchwork-Id: 12979246 +X-Patchwork-Delegate: kvalo@adurom.com +Return-Path: <linux-wireless-owner@kernel.org> +Date: Sat, 17 Sep 2022 21:27:26 +0100 +From: Daniel Golle <daniel@makrotopia.org> +To: linux-wireless@vger.kernel.org, Stanislaw Gruszka <stf_xl@wp.pl>, + Helmut Schaa <helmut.schaa@googlemail.com> +Cc: Kalle Valo <kvalo@kernel.org>, + "David S. Miller" <davem@davemloft.net>, + Eric Dumazet <edumazet@google.com>, + Jakub Kicinski <kuba@kernel.org>, + Paolo Abeni <pabeni@redhat.com>, + Johannes Berg <johannes.berg@intel.com> +Subject: [PATCH v3 05/16] rt2x00: add RF self TXDC calibration for MT7620 +Message-ID: + <dbb6e5a0c12d6101477bd09e83253091d21512c9.1663445157.git.daniel@makrotopia.org> +References: <cover.1663445157.git.daniel@makrotopia.org> +MIME-Version: 1.0 +Content-Disposition: inline +In-Reply-To: <cover.1663445157.git.daniel@makrotopia.org> +Precedence: bulk +List-ID: <linux-wireless.vger.kernel.org> +X-Mailing-List: linux-wireless@vger.kernel.org + +From: Tomislav Požega <pozega.tomislav@gmail.com> + +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> +--- +v2: use ++i instead of i = i + 1 in loops + + .../net/wireless/ralink/rt2x00/rt2800lib.c | 48 +++++++++++++++++++ + 1 file changed, 48 insertions(+) + +--- 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(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; ++ ++ 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(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); + } |