From 3073d8c0c51c0b766d35ae3beb6b29948be2ee00 Mon Sep 17 00:00:00 2001 From: Eran Harary Date: Sun, 29 Dec 2013 14:09:59 +0200 Subject: [PATCH] iwlwifi: pcie: disable APMG configurations for family 8000 APMG HW block was removed in this NIC, hence, no need to configure it. Signed-off-by: Eran Harary Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/ops.c | 7 ++++--- drivers/net/wireless/iwlwifi/pcie/trans.c | 27 ++++++++++++++++----------- drivers/net/wireless/iwlwifi/pcie/tx.c | 5 +++-- 3 files changed, 23 insertions(+), 16 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c index 7a2e488..f38ed9f 100644 --- a/drivers/net/wireless/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/iwlwifi/mvm/ops.c @@ -185,9 +185,10 @@ static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) * (PCIe power is lost before PERST# is asserted), causing ME FW * to lose ownership and not being able to obtain it back. */ - iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, - APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, - ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); + if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) + iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, + APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, + ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); } struct iwl_rx_handlers { diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c index f950780..f7e85d3 100644 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c @@ -203,19 +203,23 @@ static int iwl_pcie_apm_init(struct iwl_trans *trans) /* * Enable DMA clock and wait for it to stabilize. * - * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits - * do not disable clocks. This preserves any hardware bits already - * set by default in "CLK_CTRL_REG" after reset. + * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" + * bits do not disable clocks. This preserves any hardware + * bits already set by default in "CLK_CTRL_REG" after reset. */ - iwl_write_prph(trans, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT); - udelay(20); + if (trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) { + iwl_write_prph(trans, APMG_CLK_EN_REG, + APMG_CLK_VAL_DMA_CLK_RQT); + udelay(20); - /* Disable L1-Active */ - iwl_set_bits_prph(trans, APMG_PCIDEV_STT_REG, - APMG_PCIDEV_STT_VAL_L1_ACT_DIS); + /* Disable L1-Active */ + iwl_set_bits_prph(trans, APMG_PCIDEV_STT_REG, + APMG_PCIDEV_STT_VAL_L1_ACT_DIS); - /* Clear the interrupt in APMG if the NIC is in RFKILL */ - iwl_write_prph(trans, APMG_RTC_INT_STT_REG, APMG_RTC_INT_STT_RFKILL); + /* Clear the interrupt in APMG if the NIC is in RFKILL */ + iwl_write_prph(trans, APMG_RTC_INT_STT_REG, + APMG_RTC_INT_STT_RFKILL); + } set_bit(STATUS_DEVICE_ENABLED, &trans->status); @@ -273,7 +277,8 @@ static int iwl_pcie_nic_init(struct iwl_trans *trans) spin_unlock(&trans_pcie->irq_lock); - iwl_pcie_set_pwr(trans, false); + if (trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) + iwl_pcie_set_pwr(trans, false); iwl_op_mode_nic_config(trans->op_mode); diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c index 3d54900..2541264 100644 --- a/drivers/net/wireless/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/iwlwifi/pcie/tx.c @@ -705,8 +705,9 @@ void iwl_pcie_tx_start(struct iwl_trans *trans, u32 scd_base_addr) reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN); /* Enable L1-Active */ - iwl_clear_bits_prph(trans, APMG_PCIDEV_STT_REG, - APMG_PCIDEV_STT_VAL_L1_ACT_DIS); + if (trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) + iwl_clear_bits_prph(trans, APMG_PCIDEV_STT_REG, + APMG_PCIDEV_STT_VAL_L1_ACT_DIS); } void iwl_trans_pcie_tx_reset(struct iwl_trans *trans) -- 2.7.4