diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2021-08-02 21:58:51 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2021-08-26 23:34:25 +0300 |
| commit | 9ce041f5966fd07a4326b81add4ae472400351cd (patch) | |
| tree | db5eee5377b7b836f2fbc6b2c1b02054732243f9 /drivers/net/wireless/intel/iwlwifi/iwl-io.c | |
| parent | 7e6dffda95d09bf008db0a35aee9045cb78b191f (diff) | |
| download | linux-9ce041f5966fd07a4326b81add4ae472400351cd.tar.xz | |
iwlwifi: pcie: implement Bz device startup
Device startup changed in Bz, some register bits moved around.
Change the code accordingly.
The new Bz hardware changes also the way we wake it (grab NIC
access) and the way we disable bus mastering, update the driver
code accordingly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802215208.00a137364a95.I059a2abac948965458862941ee7db6a2e1076fa6@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/iwl-io.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/iwl-io.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-io.c b/drivers/net/wireless/intel/iwlwifi/iwl-io.c index 2a0be1fafdf9..dba54b3297d1 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-io.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-io.c @@ -398,6 +398,7 @@ int iwl_dump_fh(struct iwl_trans *trans, char **buf) int iwl_finish_nic_init(struct iwl_trans *trans, const struct iwl_cfg_trans_params *cfg_trans) { + u32 poll_ready; int err; if (cfg_trans->bisr_workaround) { @@ -409,7 +410,16 @@ int iwl_finish_nic_init(struct iwl_trans *trans, * Set "initialization complete" bit to move adapter from * D0U* --> D0A* (powered-up active) state. */ - iwl_set_bit(trans, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); + if (cfg_trans->device_family >= IWL_DEVICE_FAMILY_BZ) { + iwl_set_bit(trans, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY | + CSR_GP_CNTRL_REG_FLAG_MAC_INIT); + poll_ready = CSR_GP_CNTRL_REG_FLAG_MAC_STATUS; + } else { + iwl_set_bit(trans, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_INIT_DONE); + poll_ready = CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY; + } if (cfg_trans->device_family == IWL_DEVICE_FAMILY_8000) udelay(2); @@ -419,10 +429,7 @@ int iwl_finish_nic_init(struct iwl_trans *trans, * device-internal resources is supported, e.g. iwl_write_prph() * and accesses to uCode SRAM. */ - err = iwl_poll_bit(trans, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, - 25000); + err = iwl_poll_bit(trans, CSR_GP_CNTRL, poll_ready, poll_ready, 25000); if (err < 0) IWL_DEBUG_INFO(trans, "Failed to wake NIC\n"); |