* [PATCH 04/15] rt2x00: add RF self TXDC calibration for MT7620
@ 2022-09-16 23:05 Daniel Golle
2022-09-17 12:34 ` Stanislaw Gruszka
0 siblings, 1 reply; 3+ messages in thread
From: Daniel Golle @ 2022-09-16 23:05 UTC (permalink / raw)
To: linux-wireless, Stanislaw Gruszka, Helmut Schaa
Cc: Kalle Valo, David S. Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni, Johannes Berg
From: Tomislav Požega <pozega.tomislav@gmail.com>
Add TX self calibration based on mtk driver.
Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
---
.../net/wireless/ralink/rt2x00/rt2800lib.c | 48 +++++++++++++++++++
1 file changed, 48 insertions(+)
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index b34453bd87174f..d8b7f90c05c42b 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -8435,6 +8435,53 @@ static void rt2800_init_rfcsr_5592(struct rt2x00_dev *rt2x00dev)
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 = i + 1) {
+ 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 = i + 1) {
+ 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)
{
@@ -9042,6 +9089,7 @@ static void rt2800_init_rfcsr_6352(struct rt2x00_dev *rt2x00dev)
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);
}
--
2.37.3
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH 04/15] rt2x00: add RF self TXDC calibration for MT7620
2022-09-16 23:05 [PATCH 04/15] rt2x00: add RF self TXDC calibration for MT7620 Daniel Golle
@ 2022-09-17 12:34 ` Stanislaw Gruszka
2022-09-17 12:37 ` Daniel Golle
0 siblings, 1 reply; 3+ messages in thread
From: Stanislaw Gruszka @ 2022-09-17 12:34 UTC (permalink / raw)
To: Daniel Golle
Cc: linux-wireless, Helmut Schaa, Kalle Valo, David S. Miller,
Eric Dumazet, Jakub Kicinski, Paolo Abeni, Johannes Berg
On Sat, Sep 17, 2022 at 12:05:27AM +0100, Daniel Golle wrote:
> From: Tomislav Požega <pozega.tomislav@gmail.com>
>
> Add TX self calibration based on mtk driver.
>
> Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
Daniel, this needs your Signed-off-by,
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
> + rt2800_rfcsr_write_bank(rt2x00dev, 5, 1, 0x4);
> + for (i = 0; i < 100; i = i + 1) {
Why not i++ ? :-)
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 04/15] rt2x00: add RF self TXDC calibration for MT7620
2022-09-17 12:34 ` Stanislaw Gruszka
@ 2022-09-17 12:37 ` Daniel Golle
0 siblings, 0 replies; 3+ messages in thread
From: Daniel Golle @ 2022-09-17 12:37 UTC (permalink / raw)
To: Stanislaw Gruszka
Cc: linux-wireless, Helmut Schaa, Kalle Valo, David S. Miller,
Eric Dumazet, Jakub Kicinski, Paolo Abeni, Johannes Berg
On Sat, Sep 17, 2022 at 02:34:40PM +0200, Stanislaw Gruszka wrote:
> On Sat, Sep 17, 2022 at 12:05:27AM +0100, Daniel Golle wrote:
> > From: Tomislav Požega <pozega.tomislav@gmail.com>
> >
> > Add TX self calibration based on mtk driver.
> >
> > Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
>
> Daniel, this needs your Signed-off-by,
>
> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
>
> > + rt2800_rfcsr_write_bank(rt2x00dev, 5, 1, 0x4);
> > + for (i = 0; i < 100; i = i + 1) {
>
> Why not i++ ? :-)
or even ++i. I'll fix that in v2.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2022-09-17 12:38 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2022-09-16 23:05 [PATCH 04/15] rt2x00: add RF self TXDC calibration for MT7620 Daniel Golle
2022-09-17 12:34 ` Stanislaw Gruszka
2022-09-17 12:37 ` Daniel Golle
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