e785ca05e9
Clean and submit patches, mostly related to MT7620 to linux-wireless mailing list: https://patchwork.kernel.org/project/linux-wireless/list/?series=677770 Replace local patches with now submitted versions. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
110 lines
3.5 KiB
Diff
110 lines
3.5 KiB
Diff
From 865823b63f608ac024d326a465ba8fc1a28868cd Mon Sep 17 00:00:00 2001
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From: Daniel Golle <daniel@makrotopia.org>
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Date: Mon, 8 Jan 2018 13:43:37 +0100
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Subject: [PATCH 06/16] rt2x00: add RXDCOC calibration for MT7620
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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To: linux-wireless@vger.kernel.org,
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Stanislaw Gruszka <stf_xl@wp.pl>,
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Helmut Schaa <helmut.schaa@googlemail.com>
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Cc: Kalle Valo <kvalo@kernel.org>,
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David S. Miller <davem@davemloft.net>,
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Eric Dumazet <edumazet@google.com>,
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Jakub Kicinski <kuba@kernel.org>,
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Paolo Abeni <pabeni@redhat.com>,
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Johannes Berg <johannes.berg@intel.com>
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From: Tomislav Požega <pozega.tomislav@gmail.com>
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Add RXDCOC calibration code from mtk driver.
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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[fixed typo reported by Serge Vasilugin <vasilugin@yandex.ru>]
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Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
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---
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.../net/wireless/ralink/rt2x00/rt2800lib.c | 65 +++++++++++++++++++
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1 file changed, 65 insertions(+)
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--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
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+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
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@@ -8632,6 +8632,70 @@ static void rt2800_r_calibration(struct
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rt2800_register_write(rt2x00dev, PWR_PIN_CFG, MAC_PWR_PIN_CFG);
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}
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+static void rt2800_rxdcoc_calibration(struct rt2x00_dev *rt2x00dev)
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+{
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+ u8 bbpreg = 0;
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+ u32 macvalue = 0, macvalue1 = 0;
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+ u8 saverfb0r2, saverfb5r4, saverfb7r4, rfvalue;
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+ int i;
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+
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+ saverfb0r2 = rt2800_rfcsr_read_bank(rt2x00dev, 0, 2);
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+ rfvalue = saverfb0r2;
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+ rfvalue |= 0x03;
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+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 2, rfvalue);
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+
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+ rt2800_bbp_write(rt2x00dev, 158, 141);
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+ bbpreg = rt2800_bbp_read(rt2x00dev, 159);
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+ bbpreg |= 0x10;
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+ rt2800_bbp_write(rt2x00dev, 159, bbpreg);
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+
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+ macvalue = rt2800_register_read(rt2x00dev, MAC_SYS_CTRL);
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+ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, 0x8);
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+
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+ for (i = 0; i < 10000; i++) {
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+ macvalue1 = rt2800_register_read(rt2x00dev, MAC_STATUS_CFG);
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+ if (macvalue1 & 0x1)
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+ usleep_range(50, 100);
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+ else
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+ break;
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+ }
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+
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+ saverfb5r4 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 4);
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+ saverfb7r4 = rt2800_rfcsr_read_bank(rt2x00dev, 7, 4);
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+ saverfb5r4 = saverfb5r4 & (~0x40);
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+ saverfb7r4 = saverfb7r4 & (~0x40);
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+ rt2800_rfcsr_write_dccal(rt2x00dev, 4, 0x64);
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+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 4, saverfb5r4);
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+ rt2800_rfcsr_write_bank(rt2x00dev, 7, 4, saverfb7r4);
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+
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+ rt2800_bbp_write(rt2x00dev, 158, 141);
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+ bbpreg = rt2800_bbp_read(rt2x00dev, 159);
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+ bbpreg = bbpreg & (~0x40);
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+ rt2800_bbp_write(rt2x00dev, 159, bbpreg);
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+ bbpreg |= 0x48;
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+ rt2800_bbp_write(rt2x00dev, 159, bbpreg);
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+
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+ for (i = 0; i < 10000; i++) {
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+ bbpreg = rt2800_bbp_read(rt2x00dev, 159);
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+ if ((bbpreg & 0x40) == 0)
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+ break;
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+ usleep_range(50, 100);
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+ }
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+
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+ bbpreg = rt2800_bbp_read(rt2x00dev, 159);
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+ bbpreg = bbpreg & (~0x40);
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+ rt2800_bbp_write(rt2x00dev, 159, bbpreg);
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+
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+ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, macvalue);
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+
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+ rt2800_bbp_write(rt2x00dev, 158, 141);
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+ bbpreg = rt2800_bbp_read(rt2x00dev, 159);
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+ bbpreg &= (~0x10);
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+ rt2800_bbp_write(rt2x00dev, 159, bbpreg);
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+
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+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 2, saverfb0r2);
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+}
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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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@@ -9241,6 +9305,7 @@ static void rt2800_init_rfcsr_6352(struc
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rt2800_r_calibration(rt2x00dev);
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rt2800_rf_self_txdc_cal(rt2x00dev);
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+ rt2800_rxdcoc_calibration(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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