diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2014-07-01 18:19:07 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-07-01 22:29:39 +0400 |
| commit | e90cf1c7abf6b190f51f89e4f63f961defba38a9 (patch) | |
| tree | a7f6f5e0eb9b10bac9900b8ce1e94ae0a8339a7d /drivers/net/wireless/b43/phy_n.c | |
| parent | c1084e026b4fe73fcc54f82d6a6bd26d9372d583 (diff) | |
| download | linux-e90cf1c7abf6b190f51f89e4f63f961defba38a9.tar.xz | |
b43: N-PHY: fixes for radio 0x2057
Enable initialization and update calibration code to fix:
b43-phy0 ERROR: Radio 0x2057 rcal timeout
b43-phy0 debug: Radio 0x2057 rccal timeout
b43-phy0 debug: Radio 0x2057 rccal timeout
b43-phy0 ERROR: Radio 0x2057 rcal timeout
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43/phy_n.c')
| -rw-r--r-- | drivers/net/wireless/b43/phy_n.c | 63 |
1 files changed, 52 insertions, 11 deletions
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index 0fb5e14a4554..8369a08f0327 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -590,7 +590,9 @@ static void b43_nphy_set_rf_sequence(struct b43_wldev *dev, u8 cmd, * Radio 0x2057 **************************************************/ -/* http://bcm-v4.sipsolutions.net/PHY/radio2057_rcal */ +/* Calibrate resistors in LPF of PLL? + * http://bcm-v4.sipsolutions.net/PHY/radio205x_rcal + */ static u8 b43_radio_2057_rcal(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; @@ -603,15 +605,25 @@ static u8 b43_radio_2057_rcal(struct b43_wldev *dev) b43_radio_maskset(dev, 0x1ca, ~0x2, 0x1); } + /* Enable */ b43_radio_set(dev, R2057_RCAL_CONFIG, 0x1); udelay(10); - b43_radio_set(dev, R2057_RCAL_CONFIG, 0x3); - if (!b43_radio_wait_value(dev, R2057_RCCAL_N1_1, 1, 1, 100, 1000000)) { + + /* Start */ + b43_radio_set(dev, R2057_RCAL_CONFIG, 0x2); + usleep_range(100, 200); + + /* Stop */ + b43_radio_mask(dev, R2057_RCAL_CONFIG, ~0x2); + + /* Wait and check for result */ + if (!b43_radio_wait_value(dev, R2057_RCAL_STATUS, 1, 1, 100, 1000000)) { b43err(dev->wl, "Radio 0x2057 rcal timeout\n"); return 0; } - b43_radio_mask(dev, R2057_RCAL_CONFIG, ~0x2); tmp = b43_radio_read(dev, R2057_RCAL_STATUS) & 0x3E; + + /* Disable */ b43_radio_mask(dev, R2057_RCAL_CONFIG, ~0x1); if (phy->radio_rev == 5) { @@ -627,7 +639,9 @@ static u8 b43_radio_2057_rcal(struct b43_wldev *dev) return tmp & 0x3e; } -/* http://bcm-v4.sipsolutions.net/PHY/radio2057_rccal */ +/* Calibrate the internal RC oscillator? + * http://bcm-v4.sipsolutions.net/PHY/radio2057_rccal + */ static u16 b43_radio_2057_rccal(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; @@ -635,49 +649,76 @@ static u16 b43_radio_2057_rccal(struct b43_wldev *dev) phy->radio_rev == 6); u16 tmp; + /* Setup cal */ if (special) { b43_radio_write(dev, R2057_RCCAL_MASTER, 0x61); b43_radio_write(dev, R2057_RCCAL_TRC0, 0xC0); } else { - b43_radio_write(dev, 0x1AE, 0x61); + b43_radio_write(dev, R2057v7_RCCAL_MASTER, 0x61); b43_radio_write(dev, R2057_RCCAL_TRC0, 0xE1); } b43_radio_write(dev, R2057_RCCAL_X1, 0x6E); + + /* Start, wait, stop */ b43_radio_write(dev, R2057_RCCAL_START_R1_Q1_P1, 0x55); - if (!b43_radio_wait_value(dev, R2057_RCCAL_DONE_OSCCAP, 1, 1, 500, + if (!b43_radio_wait_value(dev, R2057_RCCAL_DONE_OSCCAP, 2, 2, 500, 5000000)) b43dbg(dev->wl, "Radio 0x2057 rccal timeout\n"); + usleep_range(35, 70); b43_radio_write(dev, R2057_RCCAL_START_R1_Q1_P1, 0x15); + usleep_range(70, 140); + + /* Setup cal */ if (special) { b43_radio_write(dev, R2057_RCCAL_MASTER, 0x69); b43_radio_write(dev, R2057_RCCAL_TRC0, 0xB0); } else { - b43_radio_write(dev, 0x1AE, 0x69); + b43_radio_write(dev, R2057v7_RCCAL_MASTER, 0x69); b43_radio_write(dev, R2057_RCCAL_TRC0, 0xD5); } b43_radio_write(dev, R2057_RCCAL_X1, 0x6E); + + /* Start, wait, stop */ + usleep_range(35, 70); b43_radio_write(dev, R2057_RCCAL_START_R1_Q1_P1, 0x55); - if (!b43_radio_wait_value(dev, R2057_RCCAL_DONE_OSCCAP, 1, 1, 500, + usleep_range(70, 140); + if (!b43_radio_wait_value(dev, R2057_RCCAL_DONE_OSCCAP, 2, 2, 500, 5000000)) b43dbg(dev->wl, "Radio 0x2057 rccal timeout\n"); + usleep_range(35, 70); b43_radio_write(dev, R2057_RCCAL_START_R1_Q1_P1, 0x15); + usleep_range(70, 140); + + /* Setup cal */ if (special) { b43_radio_write(dev, R2057_RCCAL_MASTER, 0x73); b43_radio_write(dev, R2057_RCCAL_X1, 0x28); b43_radio_write(dev, R2057_RCCAL_TRC0, 0xB0); } else { - b43_radio_write(dev, 0x1AE, 0x73); + b43_radio_write(dev, R2057v7_RCCAL_MASTER, 0x73); b43_radio_write(dev, R2057_RCCAL_X1, 0x6E); b43_radio_write(dev, R2057_RCCAL_TRC0, 0x99); } + + /* Start, wait, stop */ + usleep_range(35, 70); b43_radio_write(dev, R2057_RCCAL_START_R1_Q1_P1, 0x55); - if (!b43_radio_wait_value(dev, R2057_RCCAL_DONE_OSCCAP, 1, 1, 500, + usleep_range(70, 140); + if (!b43_radio_wait_value(dev, R2057_RCCAL_DONE_OSCCAP, 2, 2, 500, 5000000)) { b43err(dev->wl, "Radio 0x2057 rcal timeout\n"); return 0; } tmp = b43_radio_read(dev, R2057_RCCAL_DONE_OSCCAP); + usleep_range(35, 70); b43_radio_write(dev, R2057_RCCAL_START_R1_Q1_P1, 0x15); + usleep_range(70, 140); + + if (special) + b43_radio_mask(dev, R2057_RCCAL_MASTER, ~0x1); + else + b43_radio_mask(dev, R2057v7_RCCAL_MASTER, ~0x1); + return tmp; } |