diff options
| author | Daniel Golle <daniel@makrotopia.org> | 2022-09-17 23:29:55 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2022-09-24 15:30:57 +0300 |
| commit | cbde6ed406a51092d9e8a2df058f5f8490f27443 (patch) | |
| tree | c6de49b3e9b1adf514f39cc465e1b1e76ec704a2 /drivers/net/wireless/ralink | |
| parent | 0e09768c085709e10ece3b68f6ac921d3f6a9caa (diff) | |
| download | linux-cbde6ed406a51092d9e8a2df058f5f8490f27443.tar.xz | |
wifi: rt2x00: set SoC wmac clock register
Instead of using the default value 33 (pci), set US_CYC_CNT init based
on Programming guide:
If available, set chipset bus clock with fallback to cpu clock/3.
Reported-by: Serge Vasilugin <vasilugin@yandex.ru>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/3e275d259f476f597dab91a9c395015ef3fe3284.1663445157.git.daniel@makrotopia.org
Diffstat (limited to 'drivers/net/wireless/ralink')
| -rw-r--r-- | drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c index f25ab41f5805..ecd475e7c021 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c @@ -6229,6 +6229,27 @@ static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev) reg = rt2800_register_read(rt2x00dev, US_CYC_CNT); rt2x00_set_field32(®, US_CYC_CNT_CLOCK_CYCLE, 125); rt2800_register_write(rt2x00dev, US_CYC_CNT, reg); + } else if (rt2x00_is_soc(rt2x00dev)) { + struct clk *clk = clk_get_sys("bus", NULL); + int rate; + + if (IS_ERR(clk)) { + clk = clk_get_sys("cpu", NULL); + + if (IS_ERR(clk)) { + rate = 125; + } else { + rate = clk_get_rate(clk) / 3000000; + clk_put(clk); + } + } else { + rate = clk_get_rate(clk) / 1000000; + clk_put(clk); + } + + reg = rt2800_register_read(rt2x00dev, US_CYC_CNT); + rt2x00_set_field32(®, US_CYC_CNT_CLOCK_CYCLE, rate); + rt2800_register_write(rt2x00dev, US_CYC_CNT, reg); } reg = rt2800_register_read(rt2x00dev, HT_FBK_CFG0); |