From 02c06e4abc0680afd31bf481a803541556757fb6 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Fri, 17 Jul 2009 09:30:14 -0700 Subject: iwlagn: modify digital SVR for 1000 On 1000, there are two Switching Voltage Regulators (SVR). The first one apply digital voltage level (1.32V) for PCIe block and core. We need to use this regulator to solve a stability issue related to noisy DC2DC line in the silicon. Signed-off-by: Wey-Yi Guy Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-5000.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/net/wireless/iwlwifi/iwl-5000.c') diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index 85e8bac499a7..3f9da6e47108 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -239,6 +239,13 @@ static void iwl5000_nic_config(struct iwl_priv *priv) APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); + if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_1000) { + /* Setting digital SVR for 1000 card to 1.32V */ + iwl_set_bits_mask_prph(priv, APMG_DIGITAL_SVR_REG, + APMG_SVR_DIGITAL_VOLTAGE_1_32, + ~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK); + } + spin_unlock_irqrestore(&priv->lock, flags); } -- cgit v1.2.2