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43ae50978a
https://patchwork.kernel.org/patch/11224189/ -- On 2019-10-28 06:07, wbob wrote: > Hello Roman, > > while reading around drivers/net/wireless/ralink/rt2x00/rt2800lib.c > I stumbled on what I think is an edit of yours made in error in march > 2017: > > https://github.com/torvalds/linux/commit/41977e86#diff-dae5dc10da180f3b055809a48118e18aR5281 > > RT6352 in line 5281 should not have been introduced as the "else if" > below line 5291 can then not take effect for a RT6352 device. Another > possibility is for line 5291 to be not for RT6352, but this seems > very unlikely. Are you able to clarify still after this substantial time? > > 5277: static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev) > ... > 5279: } else if (rt2x00_rt(rt2x00dev, RT5390) || > 5280: rt2x00_rt(rt2x00dev, RT5392) || > 5281: rt2x00_rt(rt2x00dev, RT6352)) { > ... > 5291: } else if (rt2x00_rt(rt2x00dev, RT6352)) { > ... Hence remove errornous line 5281 to make the driver actually execute the correct initialization routine for MT7620 chips. As it was requested by Stanislaw Gruszka remove setting values of MIMO_PS_CFG and TX_PIN_CFG. MIMO_PS_CFG is responsible for MIMO power-safe mode (which is disabled), hence we can drop setting it. TX_PIN_CFG is set correctly in other functions, and as setting this value breaks some devices, rather don't set it here during init, but only modify it later on. Fixes: 41977e86c984 ("rt2x00: add support for MT7620") Reported-by: wbob <wbob@jify.de> Reported-by: Roman Yeryomin <roman@advem.lv> Signed-off-by: Daniel Golle <daniel@makrotopia.org> Acked-by: Stanislaw Gruszka <sgruszka@redhat.com> -- Signed-off-by: Daniel Golle <daniel@makrotopia.org>
103 lines
3.4 KiB
Diff
103 lines
3.4 KiB
Diff
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
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+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
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@@ -8628,6 +8628,71 @@ void rt2800_r_calibration(struct rt2x00_
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}
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EXPORT_SYMBOL_GPL(rt2800_r_calibration);
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+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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+ udelay(50);
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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, 0);
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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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+ udelay(50);
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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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+EXPORT_SYMBOL_GPL(rt2800_rxdcoc_calibration);
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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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@@ -9237,6 +9302,7 @@ 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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--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.h
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+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.h
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@@ -245,6 +245,7 @@ void rt2800_vco_calibration(struct rt2x0
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void rt2800_rf_self_txdc_cal(struct rt2x00_dev *rt2x00dev);
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int rt2800_calcrcalibrationcode(struct rt2x00_dev *rt2x00dev, int d1, int d2);
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void rt2800_r_calibration(struct rt2x00_dev *rt2x00dev);
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+void rt2800_rxdcoc_calibration(struct rt2x00_dev *rt2x00dev);
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int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev);
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void rt2800_disable_radio(struct rt2x00_dev *rt2x00dev);
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--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
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+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
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@@ -566,6 +566,7 @@ struct rt2x00lib_ops {
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void (*rf_self_txdc_cal) (struct rt2x00_dev *rt2x00dev);
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int (*calcrcalibrationcode) (struct rt2x00_dev *rt2x00dev, int d1, int d2);
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void (*r_calibration) (struct rt2x00_dev *rt2x00dev);
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+ void (*rxdcoc_calibration) (struct rt2x00_dev *rt2x00dev);
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/*
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* Data queue handlers.
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