diff options
Diffstat (limited to 'package/kernel/mac80211/patches/rt2x00/007-rt2x00-add-RXDCOC-calibration-for-MT7620.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/rt2x00/007-rt2x00-add-RXDCOC-calibration-for-MT7620.patch | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/rt2x00/007-rt2x00-add-RXDCOC-calibration-for-MT7620.patch b/package/kernel/mac80211/patches/rt2x00/007-rt2x00-add-RXDCOC-calibration-for-MT7620.patch new file mode 100644 index 0000000000..8da41e875a --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/007-rt2x00-add-RXDCOC-calibration-for-MT7620.patch @@ -0,0 +1,117 @@ +From patchwork Sat Sep 17 20:27:56 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: 12979248 +X-Patchwork-Delegate: kvalo@adurom.com +Return-Path: <linux-wireless-owner@kernel.org> +Date: Sat, 17 Sep 2022 21:27:56 +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 07/16] rt2x00: add RXDCOC calibration for MT7620 +Message-ID: + <850b30f652e88de30d79e968af4eb47aa5bc2511.1663445157.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 RXDCOC calibration code from mtk driver. + +Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com> +[fixed typo reported by Serge Vasilugin <vasilugin@yandex.ru>] +Signed-off-by: Daniel Golle <daniel@makrotopia.org> +Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> +--- + .../net/wireless/ralink/rt2x00/rt2800lib.c | 60 +++++++++++++++++++ + 1 file changed, 60 insertions(+) + +--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +@@ -8607,6 +8607,65 @@ static void rt2800_r_calibration(struct + rt2800_register_write(rt2x00dev, PWR_PIN_CFG, MAC_PWR_PIN_CFG); + } + ++static void rt2800_rxdcoc_calibration(struct rt2x00_dev *rt2x00dev) ++{ ++ u8 bbpreg = 0; ++ u32 macvalue = 0; ++ u8 saverfb0r2, saverfb5r4, saverfb7r4, rfvalue; ++ int i; ++ ++ saverfb0r2 = rt2800_rfcsr_read_bank(rt2x00dev, 0, 2); ++ rfvalue = saverfb0r2; ++ rfvalue |= 0x03; ++ rt2800_rfcsr_write_bank(rt2x00dev, 0, 2, rfvalue); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 141); ++ bbpreg = rt2800_bbp_read(rt2x00dev, 159); ++ bbpreg |= 0x10; ++ rt2800_bbp_write(rt2x00dev, 159, bbpreg); ++ ++ macvalue = rt2800_register_read(rt2x00dev, MAC_SYS_CTRL); ++ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, 0x8); ++ ++ if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev, MAC_STATUS_CFG_BBP_RF_BUSY_TX))) ++ rt2x00_warn(rt2x00dev, "RF TX busy in RX RXDCOC calibration\n"); ++ ++ saverfb5r4 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 4); ++ saverfb7r4 = rt2800_rfcsr_read_bank(rt2x00dev, 7, 4); ++ saverfb5r4 = saverfb5r4 & (~0x40); ++ saverfb7r4 = saverfb7r4 & (~0x40); ++ rt2800_rfcsr_write_dccal(rt2x00dev, 4, 0x64); ++ rt2800_rfcsr_write_bank(rt2x00dev, 5, 4, saverfb5r4); ++ rt2800_rfcsr_write_bank(rt2x00dev, 7, 4, saverfb7r4); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 141); ++ bbpreg = rt2800_bbp_read(rt2x00dev, 159); ++ bbpreg = bbpreg & (~0x40); ++ rt2800_bbp_write(rt2x00dev, 159, bbpreg); ++ bbpreg |= 0x48; ++ rt2800_bbp_write(rt2x00dev, 159, bbpreg); ++ ++ for (i = 0; i < 10000; i++) { ++ bbpreg = rt2800_bbp_read(rt2x00dev, 159); ++ if ((bbpreg & 0x40) == 0) ++ break; ++ usleep_range(50, 100); ++ } ++ ++ bbpreg = rt2800_bbp_read(rt2x00dev, 159); ++ bbpreg = bbpreg & (~0x40); ++ rt2800_bbp_write(rt2x00dev, 159, bbpreg); ++ ++ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, macvalue); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 141); ++ bbpreg = rt2800_bbp_read(rt2x00dev, 159); ++ bbpreg &= (~0x10); ++ rt2800_bbp_write(rt2x00dev, 159, bbpreg); ++ ++ rt2800_rfcsr_write_bank(rt2x00dev, 0, 2, saverfb0r2); ++} ++ + static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev, + bool set_bw, bool is_ht40) + { +@@ -9216,6 +9275,7 @@ static void rt2800_init_rfcsr_6352(struc + + rt2800_r_calibration(rt2x00dev); + rt2800_rf_self_txdc_cal(rt2x00dev); ++ rt2800_rxdcoc_calibration(rt2x00dev); + rt2800_bw_filter_calibration(rt2x00dev, true); + rt2800_bw_filter_calibration(rt2x00dev, false); + } |