diff options
| author | Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> | 2014-10-28 16:50:07 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-10-30 15:26:50 -0400 |
| commit | 48516298edb4260748c52064f828319c3bb15536 (patch) | |
| tree | b2fef3a302ff6606a47a29f7d21e35676ca93e01 /drivers/net/wireless/ath/wil6210/main.c | |
| parent | cded936962a3be2f8fe1f0b4a4e3c45d8a8047ce (diff) | |
wil6210: reset flow updates
As communicated with the firmware & hardware teams
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/main.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c index 79003844008a..0e95557e177f 100644 --- a/drivers/net/wireless/ath/wil6210/main.c +++ b/drivers/net/wireless/ath/wil6210/main.c @@ -400,7 +400,7 @@ static inline void wil_release_cpu(struct wil6210_priv *wil) static int wil_target_reset(struct wil6210_priv *wil) { int delay = 0; - u32 hw_state; + u32 x; u32 rev_id; bool is_sparrow = (wil->board->board == WIL_BOARD_SPARROW); @@ -415,9 +415,22 @@ static int wil_target_reset(struct wil6210_priv *wil) S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST); wil_halt_cpu(wil); - C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL); /* 40 MHz */ if (is_sparrow) { + S(RGF_CAF_OSC_CONTROL, BIT_CAF_OSC_XTAL_EN); + /* XTAL stabilization should take about 3ms */ + usleep_range(5000, 7000); + x = R(RGF_CAF_PLL_LOCK_STATUS); + if (!(x & BIT_CAF_OSC_DIG_XTAL_STABLE)) { + wil_err(wil, "Xtal stabilization timeout\n" + "RGF_CAF_PLL_LOCK_STATUS = 0x%08x\n", x); + return -ETIME; + } + /* switch 10k to XTAL*/ + C(RGF_USER_SPARROW_M_4, BIT_SPARROW_M_4_SEL_SLEEP_OR_REF); + /* 40 MHz */ + C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL); + W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x3ff81f); W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0xf); } @@ -458,13 +471,13 @@ static int wil_target_reset(struct wil6210_priv *wil) /* wait until device ready. typical time is 200..250 msec */ do { msleep(RST_DELAY); - hw_state = R(RGF_USER_HW_MACHINE_STATE); + x = R(RGF_USER_HW_MACHINE_STATE); if (delay++ > RST_COUNT) { wil_err(wil, "Reset not completed, hw_state 0x%08x\n", - hw_state); + x); return -ETIME; } - } while (hw_state != HW_MACHINE_BOOT_DONE); + } while (x != HW_MACHINE_BOOT_DONE); /* TODO: Erez check rev_id != 1 */ if (!is_sparrow && (rev_id != 1)) |